450:
251:
768:
structured with a two letter prefix, a digit (which identifies geographical area), and a 2, 3 or 4 letter suffix. This suffix may be followed by a further suffix, or personal identifier, such as /P (portable), /M (mobile), /AM (aeronautical mobile) or /MM (maritime mobile). The number following the prefix is normally a single number (0 to 9). Some prefixes, such as
Djibouti's (J2), consist of a letter followed by a number. Hence, in the hypothetical Djibouti call sign, J29DBA, the prefix is
280:
signs beginning with "N". Originally, both ships and broadcast stations were assigned call signs in this series consisting of three or four letters. Ships equipped with Morse code radiotelegraphy, or life boat radio sets, aviation ground stations, broadcast stations were given four-letter call signs. Maritime coast stations on high frequency (both radiotelegraphy and radiotelephony) were assigned three-letter call signs. As demand for both
367:, and instead use the name of the aircraft manufacturer or the specific model. At times, general aviation pilots might omit additional preceding numbers and use only the last three numbers and letters. This is especially true at uncontrolled fields (those without control towers) when reporting traffic pattern positions or at towered airports after establishing two-way communication with the tower controller. For example,
1055:
4557:
750:
36:
4567:
4546:
4577:
943:. Within a standard infantry battalion, these characters represent companies, platoons and sections respectively, so that 3 Section, 1 Platoon of F Company might be F13. In addition, a suffix following the initial call sign can denote a specific individual or grouping within the designated call sign, so F13C would be the Charlie
296:
small boats have a number that is shown on both bows (i.e. port and starboard) in which the first two digits indicate the nominal length of the boat in feet. For example, Coast Guard 47021 refers to the 21st in the series of 47-foot motor lifeboats. The call sign might be abbreviated to the final two
434:
The only continuity in call signs for spacecraft have been the issuance of "ISS"-suffixed call signs by various countries in the amateur radio service as a citizen of their country has been assigned there. The first amateur radio call sign assigned to the
International Space Station was NA1SS by the
422:
Radio call signs used for communication in crewed spaceflight are not formalized or regulated to the same degree as for aircraft. The three nations currently launching crewed space missions use different methods to identify the ground and space radio stations; the United States uses either the names
407:
receive C-Ixxx call signs. In days gone by, even
American aircraft used five-letter call signs, such as KHâABC, but they were replaced prior to World War II by the current American system of civilian aircraft call signs (see below). One exception to the parallelism between registration and call sign
390:
In most countries, the aircraft call sign or "tail number"/"tail letters" (also known as registration marks) are linked to the international radio call sign allocation table and follow a convention that aircraft radio stations (and, by extension, the aircraft itself) receive call signs consisting of
279:
for ship registration, call signs for larger vessels consist of the national prefix plus three letters (for example, 3LXY, and sometimes followed by a number, e.g. 3LXY2). United States merchant vessels are given call signs beginning with the letters "W" or "K" while US naval ships are assigned call
663:
In South
America call signs have been a traditional way of identifying radio and TV stations. Some stations still broadcast their call signs a few times a day, but this practice is becoming very rare. Argentinian broadcast call signs consist of two or three letters followed by multiple numbers, the
592:
in
Chicago. American radio stations announce their call signs (except for rare cases in which would interfere with the broadcast of very long works of classical or opera music) at or near the top of each hour, as well as sign-on and sign-off for stations that do not broadcast 24 hours. Beginning in
1026:
International regulations no longer require a call sign for broadcast stations; however, they are still required for broadcasters in many countries, including the United States. Mobile phone services do not use call signs on-air because the phones and their users are not licensed, instead the cell
783:
When operating with reciprocal agreements under the jurisdiction of a foreign government, an identifying station pre-pends the call sign with the country prefix and number of the country/territory from which the operation is occurring. For example, W4/G3ABC would denote a licensed amateur from the
1073:
to an operator with whom they have communicated via radio. Callbooks have evolved to include on-line databases that are accessible via the
Internet to instantly obtain the address of another amateur radio operator and their QSL Managers. The most well known and used on-line QSL databases include
767:
call signs are in the international series and normally consist of a one or two character prefix, a digit (which may be used to denote a geographical area, class of license, or identify a licensee as a visitor or temporary resident), and a 1-, 2-, or 3-letter suffix. In
Australia, call signs are
483:
105" or "the ABC network" are not globally unique. Another station in another city or country may (and often will) have a similar brand, and the name of a broadcast station for legal purposes is normally its internationally recognised ITU call sign. Some common conventions are followed in each
315:
Originally aviation mobile stations (aircraft) equipped with radiotelegraphy were assigned five-letter call signs (e.g. KHAAQ). Land stations in aviation were assigned four-letter call signs (e.g. WEAL – Eastern Air Lines, NYC.) These call signs were phased out in the 1960s when
784:
United
Kingdom who is operating in the fourth district of the United States. There are exceptions; in the case of U.S./Canadian reciprocal operations, the country/territory identifier is, instead, appended to the call sign; e.g., W1AW/VE4, or VE3XYZ/W1.
722:
Most
European and Asian countries do not use call signs to identify broadcast stations, but Japan, South Korea, Indonesia, the Philippines and Taiwan do have call sign systems. Spanish broadcasters used call signs consisting of
1093:
291:
class SA: "Ship recreational or voluntarily equipped." Those calls follow the land mobile format of the initial letter K or W followed by 1 or 2 letters followed by 3 or 4 numbers (such as KX0983 or WXX0029).
1482:
a database of international telecommunications administrations, searchable by callsign, covering AM, FM, DAB and TV in the United States, Canada, Mexico, the United
Kingdom, Ireland, Japan and Australia
487:
Broadcast stations in North America generally use call signs in the international series. In the United States of America, they are used for all FCC-licensed transmitters. The first letter generally is
1046:. Voluntary ships (mostly pleasure and recreational) are not required to have a radio. However, ships which are required to have radio equipment (most large commercial vessels) are issued a call sign.
3373:
521:
327:
are derived from several different policies, depending upon the type of flight operation and whether or not the caller is in an aircraft or at a ground facility. In most countries, unscheduled
351:. Aircraft registration numbers internationally follow the pattern of a country prefix, followed by a unique identifier made up of letters and numbers. For example, an aircraft registered as
893:
In wartime, monitoring an adversary's communications can be a valuable form of intelligence. Consistent call signs can aid in this monitoring, so in wartime, military units often employ
975:, because frequencies below 10 kHz are not subject to international regulations. In addition, in some countries lawful unlicensed low-power personal and broadcast radio signals (
287:
Leisure craft with VHF radios may not be assigned call signs, in which case the name of the vessel is used instead. Ships in the US still wishing to have a radio license are under
395:
have a five-letter registration beginning with the letter G, which can also serve for a call sign. Canadian aircraft have a call sign beginning with CâF or CâG, such as CâFABC.
1066:
and contained the name and addressees of licensed radio stations in a given jurisdiction (country). Modern Electrics published the first callbook in the United States in 1909.
991:
are unlicensed and do not have call signs. On some personal radio services, such as CB, it is considered a matter of etiquette to create one's own call sign, which is called a
987:) are permitted; an international call sign is not issued to such stations due to their unlicensed nature. Also, wireless network routers or mobile devices and computers using
1043:
947:. Unused suffixes can be used for other call signs that do not fall into the standard call sign matrix, for example the unused 33A call sign is used to refer to the
2413:
787:
Special call signs are issued in the amateur radio service either for special purposes, VIPs, or for temporary use to commemorate special events. Examples include
2234:
716:
449:
4529:
4501:
4496:
3521:
1223:
2953:
284:
and broadcast call signs grew, gradually American-flagged vessels with radiotelephony only were given longer call signs with mixed letters and numbers.
2418:
344:
1765:
1103:
1020:
819:
617:
1711:
1246:
731:; these also ceased to be used in the 1970s. Britain has no call signs in the American sense, but allows broadcast stations to choose their own
435:
United States. OR4ISS (Belgium), DP0ISS (Germany), and RS0ISS (Russia) are examples of others, but are not all-inclusive of others also issued.
4523:
423:
given to the space vehicles, or else the project name and mission number. Russia traditionally assigns code names as call signs to individual
4518:
4508:
4488:
4290:
897:
and sometimes change them at regular intervals. In peacetime, some military stations will use fixed call signs in the international series.
1549:
4513:
4359:
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664:
second and third letters indicating region. In Brazil, radio and TV stations are identified by a ZY, a third letter and three numbers.
4285:
2758:
2660:
1620:
1088:
320:(FRO) were no longer required on international flights. The Russian Federation kept FROs for the Moscow-Havana run until around 2000.
4379:
597:
288:
119:
727:
followed by two letters and up to three digits until the late 1970s. Portugal had a similar system, their callsigns beginning with
1206:
4164:
3712:
3514:
3368:
3244:
3091:
1667:
223:) was later added. By 1912, the need to quickly identify stations operated by multiple companies in multiple nations required an
4611:
4275:
3160:
1694:
250:
4270:
3821:
57:
1027:
operator is the one holding the license. However, the U.S. still assigns a call sign to each mobile-phone spectrum license.
170:. A call sign can be formally assigned by a government agency, informally adopted by individuals or organizations, or even
4295:
3378:
2807:
2794:
2375:
1650:
1515:âA search engine of all of the radio stations in the world with websites, searchable by location, frequency, and call sign
593:
the early 2000s, digital subchannels were assigned a -DT# suffix, where # is the subchannel (starting with the number 2).
267:
Merchant and naval vessels are assigned call signs by their national licensing authorities. In the case of states such as
4580:
4570:
4331:
4228:
3771:
3538:
2511:
2138:
2090:
1758:
1069:
Today, the primary purpose of a callbook is to allow amateur radio operators to send a confirmation post card, called a
100:
4560:
4067:
3507:
2616:
1816:
1725:
1674:
875:
When identifying a station by voice, the call sign may be given by simply stating the letters and numbers, or using a
72:
1485:
1178:
1062:
A directory of radio station call signs is called a callbook. Callbooks were originally bound books that resembled a
1503:
4419:
4341:
4280:
3987:
2905:
2166:
1887:
1098:
921:
219:
at sea. These were not globally unique, so a one-letter company identifier (for instance, 'M' and two letters as a
53:
3348:
1231:
46:
4191:
4152:
3997:
3897:
3826:
3759:
3586:
3217:
1718:
968:
925:
79:
4550:
3792:
3727:
3680:
3566:
3319:
3175:
2712:
2001:
1625:
1589:
1542:
1340:
1012:
964:
796:
744:
621:
259:
1469:
4389:
4374:
4218:
4169:
4092:
3992:
3670:
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3058:
2390:
1751:
1730:
1706:
909:
86:
4606:
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3665:
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3076:
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2752:
2623:
2109:
1679:
1113:
960:
948:
876:
520:
in San Antonio. All new call signs have been four-character for some decades, though there are historical
348:
317:
231:
would be used to identify a country, and the rest of the call sign an individual station in that country.
224:
203:. In order to save time, two-letter identifiers were adopted for this purpose. This pattern continued in
4213:
4017:
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3902:
3882:
3804:
3692:
3613:
2827:
1872:
1701:
1604:
417:
396:
332:
1366:
780:. Others may start with a number followed by a letter, for example, Jamaican call signs begin with 6Y.
68:
4127:
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3814:
3749:
3640:
3115:
2847:
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1689:
1684:
1662:
1657:
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444:
276:
188:
139:
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1518:
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2157:
2133:
1645:
1640:
1635:
1572:
1535:
1133:
1063:
996:
894:
888:
872:, which would have been the shortest possible call sign issued by the Hashemite Kingdom of Jordan.
468:
Broadcasters are allocated call signs in many countries. While broadcast radio stations will often
458:
404:
310:
245:
212:
167:
2702:
4364:
4321:
4252:
4122:
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2400:
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976:
972:
917:
901:
255:
408:
is ultralight airplanes in France, who are not obliged to carry a radio and indeed often don't.
1439:
Aeronautical Information Manual, Official Guide to Basic Flight Information and ATC Procedures,
4404:
4326:
4240:
4223:
4186:
4072:
4032:
3862:
3831:
3697:
3591:
3424:
3190:
2679:
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1953:
1919:
1914:
1464:
861:
804:
513:
493:
428:
192:
4409:
4369:
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3907:
3867:
3717:
3576:
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3309:
3185:
3180:
3081:
3002:
2899:
2567:
2536:
2443:
2302:
2023:
1035:
1008:
936:
928:
use a mixture of tactical call signs and international call signs beginning with the letter
757:
upon request for motor vehicles owned by amateur radio operators; this road vehicle is from
469:
356:
328:
293:
1153:
4037:
3892:
3660:
3623:
3314:
3234:
3229:
3224:
3155:
3120:
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3029:
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2800:
2707:
2549:
2526:
2485:
2239:
2199:
2011:
1522:
1507:
1210:
847:
843:
220:
3635:
2995:
1007:
to be set as identifiers, but with no guarantee that this label will remain unique. Many
4235:
4107:
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4012:
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3722:
3608:
3207:
3170:
3049:
3041:
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2779:
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2327:
2262:
2206:
1882:
1807:
1203:
1123:
392:
208:
204:
93:
1054:
648:. Broadcast call signs are normally four or five alpha characters in length, plus the
4595:
4384:
4157:
4147:
4062:
3952:
3947:
3937:
3922:
3744:
3603:
3197:
3105:
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2500:
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2470:
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2428:
2385:
2322:
2229:
2214:
2185:
2098:
1892:
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1255:
835:
764:
754:
480:
372:
196:
1459:
749:
4262:
4102:
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3776:
3766:
3618:
3463:
3451:
3401:
3395:
3390:
3249:
2943:
2889:
2884:
2837:
2771:
2697:
2687:
2666:
2610:
2544:
2495:
2423:
2357:
2342:
2337:
2332:
2307:
2282:
2272:
2179:
1960:
1778:
1442:
1083:
281:
216:
171:
135:
1743:
1034:
operating domestically are not required to have a call sign or license to operate
363:. However, in the United States a pilot of an aircraft would normally omit saying
4462:
4112:
4022:
4007:
3967:
3927:
3786:
3436:
3358:
3017:
3012:
3007:
2928:
2842:
2832:
2692:
2650:
2645:
2462:
2438:
2380:
2347:
2317:
2297:
2292:
2267:
2257:
2224:
2219:
2035:
2016:
1970:
1965:
1846:
1016:
1004:
851:
35:
1248:
First Annual Official Wireless Blue Book of the Wireless Association of America
959:
No call signs are issued to transmitters of the long-range navigation systems (
4467:
4174:
3872:
3781:
3737:
3707:
3685:
3675:
3650:
3429:
3412:
3353:
3333:
2990:
2918:
2865:
2861:
2789:
2605:
2572:
2505:
2408:
2352:
2174:
2128:
2085:
2040:
1991:
1924:
1904:
1867:
1841:
1797:
1792:
1108:
879:. Some countries mandate the use of the phonetic alphabet for identification.
808:
758:
732:
400:
228:
174:
163:
4452:
3917:
3732:
3441:
3304:
3066:
2958:
2718:
2433:
2116:
2050:
1996:
1943:
1938:
1811:
1490:
1128:
992:
944:
693:
549:
517:
505:
473:
424:
184:
1019:
and mobile stations (e.g., phones) by requiring them to authenticate using
1182:
715:
In Australia, broadcast call signs are optional, but are allocated by the
17:
4447:
4437:
4354:
4179:
4002:
3458:
3446:
3407:
3385:
3276:
3165:
3110:
2933:
2732:
2192:
2145:
2104:
2075:
2063:
2006:
1986:
1948:
1909:
1500:
1454:
1070:
984:
815:
641:
629:
589:
585:
581:
577:
573:
569:
561:
557:
553:
545:
541:
537:
533:
529:
525:
501:
476:
462:
454:
324:
200:
181:
908:, such as WAR, used by U.S. Army Headquarters. Fixed call signs for the
4442:
4427:
3299:
3271:
2739:
2367:
2122:
2069:
2028:
1877:
1851:
1802:
1118:
980:
939:, tactical voice communications use a system of call signs of the form
268:
4472:
4432:
3754:
3546:
3499:
3468:
3343:
2453:
1899:
1495:
865:
637:
331:
flights identify themselves using the call sign corresponding to the
272:
1519:
Broadcasting undertaking callsigns possibly available for assignment
1344:
1094:
List of aviation, avionics, aerospace and aeronautical abbreviations
4457:
4394:
3702:
3418:
3147:
3133:
3129:
1460:
United States (FCC) Call Sign Reservation and Authorization System
1053:
1039:
988:
748:
448:
249:
180:
The use of call signs as unique identifiers dates to the landline
4399:
1298:
1159:. U.S. Department of Commerce, Bureau of Navigation. May 9, 1913
1000:
509:
3503:
1747:
1531:
1512:
3645:
604:; privately owned commercial broadcast stations use primarily
565:
500:
for eastern stations. Historic exceptions in the east include
29:
1527:
1179:"CALL SIGNS/LETTERS - The Museum of Broadcast Communications"
1370:
1392:
1213:, Titanic Wireless Commemorative Group, Godalming, Surrey
1074:
QRZ.COM, IK3QAR, HamCall, F6CYV, DXInfo, OZ7C and QSLInfo.
834:
to commemorate the 90th anniversary of historic 1912 radio
371:. In commercial aviation, the callsign is usually the ICAO
1319:
403:
in Canada are eligible to receive CâHxxx call signs, and
1413:
1224:"FCC: Wireless Services: Ship Radio Stations: Licensing"
1479:
1474:
1277:
472:
themselves with plain-text names, identities such as "
461:, indicating its early location in the U.S. state of
807:'s first trans-Atlantic message, a single-character
4481:
4418:
4340:
4304:
4261:
4202:
4136:
3845:
3537:
3292:
3264:
3146:
3057:
3038:
2971:
2860:
2770:
2678:
2596:
2558:
2535:
2452:
2399:
2366:
2281:
2248:
2165:
2154:
2049:
1979:
1860:
1834:
1785:
1613:
1565:
343:). In this case, the call sign is spoken using the
60:. Unsourced material may be challenged and removed.
297:or three numbers during operations, for example:
1455:United States Call Sign Policies (Early History)
508:in Pittsburgh, while western exceptions include
1437:United States Federal Aviation Administration,
904:uses fixed station call signs which begin with
1475:Internet Radio Uniform Callsign (IRUC) program
916:, such as AIR, used by USAF Headquarters. The
3515:
1759:
1543:
868:was issued a special amateur license number,
717:Australian Communications and Media Authority
211:initially assigned two-letter identifiers to
27:Unique designation for a transmitting station
8:
719:and are unique for each broadcast station.
4530:Global telecommunications regulation bodies
4566:
3522:
3508:
3500:
3054:
2532:
2162:
1766:
1752:
1744:
1550:
1536:
1528:
1501:Fictional Story About Military Call Signs
345:International Civil Aviation Organization
120:Learn how and when to remove this message
1104:List of government and military acronyms
1021:international mobile subscriber identity
616:prefixes; and four stations licensed to
1145:
391:five letters. For example, all British
361:November-niner-seven-eight-Charlie-Papa
672:are allocated to television stations;
1058:Department of Commerce callbook, 1919
826:as a Great Britain call sign prefix,
735:call sign up to six words in length.
369:Skyhawk eight-Charlie-Papa, left base
7:
4576:
1320:"World Wide HamCall Callsign Server"
955:Transmitters requiring no call signs
58:adding citations to reliable sources
187:system. Because there was only one
1089:Glossary of military abbreviations
971:), or transmitters on frequencies
177:to disguise a station's identity.
25:
1465:FCC amateur radio operator search
624:government retain their original
598:Canadian Broadcasting Corporation
492:for stations located west of the
431:, rather than to the spacecraft.
4575:
4565:
4556:
4555:
4544:
4165:Free-space optical communication
2414:Democratic Republic of the Congo
1299:"Qsl Manager - Qsl Info on-line"
753:All U.S. states issue call sign
34:
359:flight would use the call sign
45:needs additional citations for
1496:Another Military Callsign List
1367:"DXInfo, your DX web resource"
1258:: Modern Electrics Publication
596:In Canada, the publicly owned
397:wing-in-ground-effect vehicles
195:, there needed to be a way to
1:
379:would have the flight number
4551:Telecommunication portal
4332:Telecommunications equipment
1393:"QSL Search machine by OZ7C"
644:and television stations use
524:still in use today, such as
522:three-character call letters
4068:Alexander Stepanovich Popov
1486:Military Call Sign Database
1181:. Museum.tv. Archived from
4628:
3772:Telecommunications history
3077:Imperial, royal, and noble
1341:"QSL INFORMATION by F6CYV"
1209:September 8, 2008, at the
1099:List of aviation mnemonics
922:United States Marine Corps
886:
818:, England to Signal Hill,
742:
712:are given to FM stations.
442:
415:
383:and the callsign would be
308:
243:
4539:
4380:Public Switched Telephone
4192:telecommunication circuit
4153:Fiber-optic communication
3898:Francis Blake (telephone)
3693:Optical telecommunication
3484:
3161:Imperial, royal and noble
1506:October 29, 2020, at the
1245:Gernsback, H (May 1909).
1013:base transceiver stations
926:United States Coast Guard
660:suffix where applicable.
640:), while the majority of
377:Delta Airlines Flight 744
4291:Orbital angular-momentum
3728:Satellite communications
3567:Communications satellite
2002:Maiden and married names
797:Dominion of Newfoundland
745:Amateur radio call signs
622:Dominion of Newfoundland
427:, more in the manner of
323:Currently, all signs in
299:Coast Guard zero two one
199:each one when sending a
4170:Molecular communication
3993:Gardiner Greene Hubbard
3822:Undersea telegraph line
3557:Cable protection system
3489:Category:Lists of names
1491:Military Call Sign List
910:United States Air Force
688:designate AM stations;
333:aircraft's registration
217:stations on board ships
154:âand historically as a
4612:Telecommunications law
4312:Communication protocol
4098:Charles Sumner Tainter
3913:Walter Houser Brattain
3858:Edwin Howard Armstrong
3666:Information revolution
2419:Eritrean and Ethiopian
1114:NATO phonetic alphabet
1059:
1030:In the United States,
995:(or trail name). Some
949:company sergeant major
822:in 1901) and GB90MGY (
761:
465:
264:
225:international standard
4286:Polarization-division
4018:Narinder Singh Kapany
3983:Erna Schneider Hoover
3903:Jagadish Chandra Bose
3883:Alexander Graham Bell
3614:online video platform
3349:GaltonâWatson process
2954:Ancient Tamil country
2376:Australian Aboriginal
1470:Amateur Call Prefixes
1057:
999:protocols also allow
752:
452:
418:Spacecraft call signs
318:flight radio officers
253:
158:âor abbreviated as a
4128:Vladimir K. Zworykin
4088:Almon Brown Strowger
4058:Charles Grafton Page
3713:Prepaid mobile phone
3641:Electrical telegraph
3116:Post-nominal letters
2235:Indigenous Taiwanese
1443:Chapter 4, Section 2
1373:on November 11, 2010
1154:"Radio Call Letters"
912:stations begin with
776:, and the suffix is
636:call signs (such as
580:in Los Angeles; and
504:in Philadelphia and
445:Broadcast call signs
335:number (also called
277:flags of convenience
140:radio communications
54:improve this article
4078:Johann Philipp Reis
3837:Wireless revolution
3799:The Telephone Cases
3656:Hydraulic telegraph
3476:Surnames by country
3101:Pre-nominal letters
2158:Surnames by country
1134:Tactical designator
1064:telephone directory
997:wireless networking
895:tactical call signs
889:Military call signs
883:Military call signs
528:in Salt Lake City;
405:ultralight aircraft
311:Aviation call signs
263:with call sign UKTY
246:Maritime call signs
168:transmitter station
4276:Frequency-division
4253:Telephone exchange
4123:Charles Wheatstone
4053:Jun-ichi Nishizawa
4028:Innocenzo Manzetti
3963:Reginald Fessenden
3698:Optical telegraphy
3531:Telecommunications
3339:Endonym and exonym
3282:Calendar of saints
3265:Related traditions
3039:Manners of address
2401:Sub-Saharan Africa
1822:Nobiliary particle
1060:
941:letter-digit-digit
918:United States Navy
902:United States Army
799:call sign prefix,
762:
628:calls. In Mexico,
466:
429:aviator call signs
265:
256:nuclear icebreaker
4589:
4588:
4327:Store and forward
4322:Data transmission
4236:Network switching
4187:Transmission line
4033:Guglielmo Marconi
3998:Internet pioneers
3863:Mohamed M. Atalla
3832:Whistled language
3497:
3496:
3425:Personal identity
3260:
3259:
2967:
2966:
2908:
2856:
2855:
2817:
2810:
2803:
2761:
2742:
2735:
2728:
2721:
2669:
2640:
2633:
2626:
2619:
2521:
2514:
2209:
2202:
2195:
2188:
1980:By life situation
1933:
1741:
1740:
1234:on March 4, 2016.
1185:on March 14, 2016
1011:systems identify
973:below 10 kHz
877:phonetic alphabet
846:aboard the famed
514:Norfolk, Nebraska
494:Mississippi River
349:phonetic alphabet
193:railroad stations
172:cryptographically
164:unique identifier
146:(also known as a
130:
129:
122:
104:
16:(Redirected from
4619:
4579:
4578:
4569:
4568:
4559:
4558:
4549:
4548:
4547:
4420:Notable networks
4410:Wireless network
4350:Cellular network
4342:Types of network
4317:Computer network
4204:Network topology
4118:Thomas A. Watson
3973:Oliver Heaviside
3958:Philo Farnsworth
3933:Daniel Davis Jr.
3908:Charles Bourseul
3868:John Logie Baird
3577:Data compression
3572:Computer network
3524:
3517:
3510:
3501:
3310:Anthropomorphism
3055:
3003:Buddhist surname
2904:
2813:
2806:
2799:
2759:Hispanic America
2757:
2738:
2731:
2724:
2717:
2665:
2636:
2629:
2624:African-American
2622:
2615:
2533:
2517:
2510:
2481:Ashkenazi Jewish
2286:and Western Asia
2251:and Central Asia
2205:
2198:
2191:
2184:
2163:
2024:Placeholder name
1929:
1873:Double-barrelled
1768:
1761:
1754:
1745:
1552:
1545:
1538:
1529:
1425:
1424:
1422:
1420:
1410:
1404:
1403:
1401:
1399:
1389:
1383:
1382:
1380:
1378:
1369:. Archived from
1363:
1357:
1356:
1354:
1352:
1347:on July 20, 2011
1343:. Archived from
1337:
1331:
1330:
1328:
1326:
1316:
1310:
1309:
1307:
1305:
1295:
1289:
1288:
1286:
1284:
1274:
1268:
1267:
1265:
1263:
1253:
1242:
1236:
1235:
1230:. Archived from
1228:wireless.fcc.gov
1220:
1214:
1201:
1195:
1194:
1192:
1190:
1175:
1169:
1168:
1166:
1164:
1158:
1150:
1015:by implementing
1009:mobile telephony
937:British military
772:, the number is
600:uses the prefix
357:general aviation
339:in the U.S., or
329:general aviation
294:U.S. Coast Guard
213:coastal stations
125:
118:
114:
111:
105:
103:
62:
38:
30:
21:
4627:
4626:
4622:
4621:
4620:
4618:
4617:
4616:
4592:
4591:
4590:
4585:
4545:
4543:
4535:
4477:
4414:
4336:
4300:
4257:
4206:
4198:
4139:
4132:
4038:Robert Metcalfe
3893:Tim Berners-Lee
3841:
3661:Information Age
3533:
3528:
3498:
3493:
3480:
3315:Personification
3288:
3256:
3142:
3044:
3040:
3034:
3030:Theophoric name
2963:
2868:
2852:
2766:
2674:
2592:
2554:
2531:
2460:
2448:
2395:
2362:
2285:
2277:
2250:
2244:
2156:
2150:
2045:
2012:Posthumous name
1975:
1856:
1830:
1781:
1772:
1742:
1737:
1609:
1561:
1556:
1523:Industry Canada
1508:Wayback Machine
1451:
1434:
1432:Further reading
1429:
1428:
1418:
1416:
1412:
1411:
1407:
1397:
1395:
1391:
1390:
1386:
1376:
1374:
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1360:
1350:
1348:
1339:
1338:
1334:
1324:
1322:
1318:
1317:
1313:
1303:
1301:
1297:
1296:
1292:
1282:
1280:
1276:
1275:
1271:
1261:
1259:
1251:
1244:
1243:
1239:
1222:
1221:
1217:
1211:Wayback Machine
1202:
1198:
1188:
1186:
1177:
1176:
1172:
1162:
1160:
1156:
1152:
1151:
1147:
1142:
1080:
1052:
1032:voluntary ships
957:
891:
885:
844:Marconi station
803:to commemorate
747:
741:
536:in Des Moines;
447:
441:
420:
414:
375:. For example,
313:
307:
248:
242:
237:
221:Marconi station
209:radio companies
126:
115:
109:
106:
63:
61:
51:
39:
28:
23:
22:
15:
12:
11:
5:
4625:
4623:
4615:
4614:
4609:
4604:
4594:
4593:
4587:
4586:
4584:
4583:
4573:
4563:
4553:
4540:
4537:
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4534:
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4526:
4521:
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4511:
4506:
4505:
4504:
4499:
4491:
4485:
4483:
4479:
4478:
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4475:
4470:
4465:
4460:
4455:
4450:
4445:
4440:
4435:
4430:
4424:
4422:
4416:
4415:
4413:
4412:
4407:
4402:
4397:
4392:
4387:
4382:
4377:
4372:
4367:
4362:
4357:
4352:
4346:
4344:
4338:
4337:
4335:
4334:
4329:
4324:
4319:
4314:
4308:
4306:
4302:
4301:
4299:
4298:
4293:
4288:
4283:
4278:
4273:
4271:Space-division
4267:
4265:
4259:
4258:
4256:
4255:
4250:
4249:
4248:
4243:
4233:
4232:
4231:
4221:
4216:
4210:
4208:
4200:
4199:
4197:
4196:
4195:
4194:
4184:
4183:
4182:
4172:
4167:
4162:
4161:
4160:
4150:
4144:
4142:
4134:
4133:
4131:
4130:
4125:
4120:
4115:
4110:
4108:Camille Tissot
4105:
4100:
4095:
4090:
4085:
4083:Claude Shannon
4080:
4075:
4073:Tivadar PuskĂĄs
4070:
4065:
4060:
4055:
4050:
4045:
4043:Antonio Meucci
4040:
4035:
4030:
4025:
4020:
4015:
4013:Charles K. Kao
4010:
4005:
4000:
3995:
3990:
3988:Harold Hopkins
3985:
3980:
3975:
3970:
3965:
3960:
3955:
3950:
3945:
3940:
3935:
3930:
3925:
3920:
3915:
3910:
3905:
3900:
3895:
3890:
3888:Emile Berliner
3885:
3880:
3875:
3870:
3865:
3860:
3855:
3849:
3847:
3843:
3842:
3840:
3839:
3834:
3829:
3827:Videotelephony
3824:
3819:
3818:
3817:
3812:
3802:
3795:
3790:
3784:
3779:
3774:
3769:
3764:
3763:
3762:
3757:
3752:
3742:
3741:
3740:
3730:
3725:
3723:Radiotelephone
3720:
3715:
3710:
3705:
3700:
3695:
3690:
3689:
3688:
3678:
3673:
3668:
3663:
3658:
3653:
3648:
3643:
3638:
3633:
3628:
3627:
3626:
3621:
3616:
3611:
3609:Internet video
3601:
3600:
3599:
3594:
3589:
3584:
3574:
3569:
3564:
3559:
3554:
3549:
3543:
3541:
3535:
3534:
3529:
3527:
3526:
3519:
3512:
3504:
3495:
3494:
3492:
3491:
3485:
3482:
3481:
3479:
3478:
3473:
3472:
3471:
3466:
3461:
3456:
3455:
3454:
3439:
3434:
3433:
3432:
3422:
3415:
3410:
3405:
3398:
3393:
3388:
3383:
3382:
3381:
3376:
3371:
3363:
3362:
3361:
3351:
3346:
3341:
3336:
3331:
3326:
3325:
3324:
3323:
3322:
3307:
3302:
3296:
3294:
3290:
3289:
3287:
3286:
3285:
3284:
3274:
3268:
3266:
3262:
3261:
3258:
3257:
3255:
3254:
3253:
3252:
3247:
3245:Ecclesiastical
3237:
3232:
3227:
3222:
3221:
3220:
3215:
3205:
3200:
3195:
3194:
3193:
3188:
3183:
3178:
3173:
3168:
3158:
3152:
3150:
3144:
3143:
3141:
3140:
3139:
3138:
3137:
3136:
3123:
3113:
3103:
3098:
3097:
3096:
3095:
3094:
3092:Ecclesiastical
3084:
3079:
3074:
3063:
3061:
3052:
3036:
3035:
3033:
3032:
3027:
3022:
3021:
3020:
3010:
3005:
3000:
2999:
2998:
2993:
2988:
2981:Christian name
2977:
2975:
2969:
2968:
2965:
2964:
2962:
2961:
2956:
2951:
2946:
2941:
2936:
2931:
2926:
2921:
2916:
2911:
2910:
2909:
2897:
2892:
2887:
2882:
2876:
2874:
2871:Southeast Asia
2858:
2857:
2854:
2853:
2851:
2850:
2845:
2840:
2835:
2830:
2825:
2820:
2819:
2818:
2811:
2804:
2795:Eastern Slavic
2792:
2787:
2782:
2776:
2774:
2768:
2767:
2765:
2764:
2763:
2762:
2750:
2745:
2744:
2743:
2736:
2729:
2722:
2710:
2705:
2700:
2695:
2690:
2684:
2682:
2676:
2675:
2673:
2672:
2671:
2670:
2658:
2653:
2648:
2643:
2642:
2641:
2634:
2627:
2620:
2608:
2602:
2600:
2594:
2593:
2591:
2590:
2585:
2580:
2575:
2570:
2564:
2562:
2556:
2555:
2553:
2552:
2547:
2541:
2539:
2530:
2529:
2524:
2523:
2522:
2515:
2503:
2498:
2493:
2488:
2483:
2478:
2473:
2467:
2465:
2450:
2449:
2447:
2446:
2441:
2436:
2431:
2426:
2421:
2416:
2411:
2405:
2403:
2397:
2396:
2394:
2393:
2388:
2383:
2378:
2372:
2370:
2364:
2363:
2361:
2360:
2355:
2350:
2345:
2340:
2335:
2330:
2325:
2320:
2315:
2310:
2305:
2300:
2295:
2289:
2287:
2279:
2278:
2276:
2275:
2270:
2265:
2260:
2254:
2252:
2246:
2245:
2243:
2242:
2237:
2232:
2227:
2222:
2217:
2212:
2211:
2210:
2203:
2196:
2189:
2177:
2171:
2169:
2160:
2152:
2151:
2149:
2148:
2143:
2142:
2141:
2136:
2126:
2119:
2114:
2113:
2112:
2102:
2095:
2094:
2093:
2088:
2083:
2073:
2066:
2060:
2058:
2047:
2046:
2044:
2043:
2038:
2033:
2032:
2031:
2021:
2020:
2019:
2014:
2004:
1999:
1994:
1989:
1983:
1981:
1977:
1976:
1974:
1973:
1968:
1963:
1958:
1957:
1956:
1946:
1941:
1936:
1935:
1934:
1922:
1917:
1912:
1907:
1902:
1897:
1896:
1895:
1890:
1885:
1875:
1870:
1864:
1862:
1858:
1857:
1855:
1854:
1849:
1844:
1838:
1836:
1832:
1831:
1829:
1828:
1827:
1826:
1825:
1824:
1814:
1800:
1795:
1789:
1787:
1783:
1782:
1775:Personal names
1773:
1771:
1770:
1763:
1756:
1748:
1739:
1738:
1736:
1735:
1734:
1733:
1723:
1722:
1721:
1716:
1715:
1714:
1699:
1698:
1697:
1692:
1687:
1682:
1672:
1671:
1670:
1668:United Kingdom
1665:
1655:
1654:
1653:
1648:
1643:
1638:
1628:
1623:
1617:
1615:
1611:
1610:
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1597:
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1532:
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1516:
1510:
1498:
1493:
1488:
1483:
1477:
1472:
1467:
1462:
1457:
1450:
1449:External links
1447:
1446:
1445:
1433:
1430:
1427:
1426:
1405:
1384:
1358:
1332:
1311:
1290:
1269:
1237:
1215:
1196:
1170:
1144:
1143:
1141:
1138:
1137:
1136:
1131:
1126:
1124:Procedure word
1121:
1116:
1111:
1106:
1101:
1096:
1091:
1086:
1079:
1076:
1051:
1048:
977:Citizen's Band
956:
953:
887:Main article:
884:
881:
836:distress calls
755:license plates
743:Main article:
740:
737:
564:in Nashville;
556:in Charlotte;
443:Main article:
440:
437:
416:Main article:
413:
410:
393:civil aircraft
309:Main article:
306:
303:
244:Main article:
241:
238:
236:
235:Transportation
233:
205:radiotelegraph
189:telegraph line
128:
127:
42:
40:
33:
26:
24:
14:
13:
10:
9:
6:
4:
3:
2:
4624:
4613:
4610:
4608:
4607:Broadcast law
4605:
4603:
4600:
4599:
4597:
4582:
4574:
4572:
4564:
4562:
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4552:
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4339:
4333:
4330:
4328:
4325:
4323:
4320:
4318:
4315:
4313:
4310:
4309:
4307:
4303:
4297:
4296:Code-division
4294:
4292:
4289:
4287:
4284:
4282:
4281:Time-division
4279:
4277:
4274:
4272:
4269:
4268:
4266:
4264:
4260:
4254:
4251:
4247:
4244:
4242:
4239:
4238:
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4234:
4230:
4227:
4226:
4225:
4222:
4220:
4217:
4215:
4212:
4211:
4209:
4207:and switching
4205:
4201:
4193:
4190:
4189:
4188:
4185:
4181:
4178:
4177:
4176:
4173:
4171:
4168:
4166:
4163:
4159:
4158:optical fiber
4156:
4155:
4154:
4151:
4149:
4148:Coaxial cable
4146:
4145:
4143:
4141:
4135:
4129:
4126:
4124:
4121:
4119:
4116:
4114:
4111:
4109:
4106:
4104:
4101:
4099:
4096:
4094:
4091:
4089:
4086:
4084:
4081:
4079:
4076:
4074:
4071:
4069:
4066:
4064:
4063:Radia Perlman
4061:
4059:
4056:
4054:
4051:
4049:
4046:
4044:
4041:
4039:
4036:
4034:
4031:
4029:
4026:
4024:
4021:
4019:
4016:
4014:
4011:
4009:
4006:
4004:
4001:
3999:
3996:
3994:
3991:
3989:
3986:
3984:
3981:
3979:
3976:
3974:
3971:
3969:
3966:
3964:
3961:
3959:
3956:
3954:
3953:Lee de Forest
3951:
3949:
3948:Thomas Edison
3946:
3944:
3941:
3939:
3938:Donald Davies
3936:
3934:
3931:
3929:
3926:
3924:
3923:Claude Chappe
3921:
3919:
3916:
3914:
3911:
3909:
3906:
3904:
3901:
3899:
3896:
3894:
3891:
3889:
3886:
3884:
3881:
3879:
3876:
3874:
3871:
3869:
3866:
3864:
3861:
3859:
3856:
3854:
3851:
3850:
3848:
3844:
3838:
3835:
3833:
3830:
3828:
3825:
3823:
3820:
3816:
3813:
3811:
3808:
3807:
3806:
3803:
3801:
3800:
3796:
3794:
3791:
3788:
3785:
3783:
3780:
3778:
3775:
3773:
3770:
3768:
3767:Smoke signals
3765:
3761:
3758:
3756:
3753:
3751:
3748:
3747:
3746:
3745:Semiconductor
3743:
3739:
3736:
3735:
3734:
3731:
3729:
3726:
3724:
3721:
3719:
3716:
3714:
3711:
3709:
3706:
3704:
3701:
3699:
3696:
3694:
3691:
3687:
3684:
3683:
3682:
3679:
3677:
3674:
3672:
3669:
3667:
3664:
3662:
3659:
3657:
3654:
3652:
3649:
3647:
3644:
3642:
3639:
3637:
3634:
3632:
3629:
3625:
3622:
3620:
3617:
3615:
3612:
3610:
3607:
3606:
3605:
3604:Digital media
3602:
3598:
3595:
3593:
3590:
3588:
3585:
3583:
3580:
3579:
3578:
3575:
3573:
3570:
3568:
3565:
3563:
3560:
3558:
3555:
3553:
3550:
3548:
3545:
3544:
3542:
3540:
3536:
3532:
3525:
3520:
3518:
3513:
3511:
3506:
3505:
3502:
3490:
3487:
3486:
3483:
3477:
3474:
3470:
3467:
3465:
3462:
3460:
3457:
3453:
3450:
3449:
3448:
3445:
3444:
3443:
3440:
3438:
3435:
3431:
3428:
3427:
3426:
3423:
3421:
3420:
3416:
3414:
3411:
3409:
3406:
3404:
3403:
3399:
3397:
3394:
3392:
3389:
3387:
3384:
3380:
3377:
3375:
3372:
3370:
3367:
3366:
3364:
3360:
3357:
3356:
3355:
3352:
3350:
3347:
3345:
3342:
3340:
3337:
3335:
3332:
3330:
3327:
3321:
3318:
3317:
3316:
3313:
3312:
3311:
3308:
3306:
3303:
3301:
3298:
3297:
3295:
3291:
3283:
3280:
3279:
3278:
3275:
3273:
3270:
3269:
3267:
3263:
3251:
3248:
3246:
3243:
3242:
3241:
3238:
3236:
3233:
3231:
3228:
3226:
3223:
3219:
3216:
3214:
3211:
3210:
3209:
3206:
3204:
3201:
3199:
3196:
3192:
3189:
3187:
3184:
3182:
3179:
3177:
3174:
3172:
3169:
3167:
3164:
3163:
3162:
3159:
3157:
3154:
3153:
3151:
3149:
3145:
3135:
3131:
3127:
3124:
3122:
3119:
3118:
3117:
3114:
3112:
3109:
3108:
3107:
3104:
3102:
3099:
3093:
3090:
3089:
3088:
3085:
3083:
3080:
3078:
3075:
3073:
3070:
3069:
3068:
3065:
3064:
3062:
3060:
3056:
3053:
3051:
3047:
3043:
3037:
3031:
3028:
3026:
3025:Mandaean name
3023:
3019:
3016:
3015:
3014:
3011:
3009:
3006:
3004:
3001:
2997:
2994:
2992:
2989:
2987:
2986:Biblical name
2984:
2983:
2982:
2979:
2978:
2976:
2974:
2970:
2960:
2957:
2955:
2952:
2950:
2947:
2945:
2942:
2940:
2937:
2935:
2932:
2930:
2927:
2925:
2922:
2920:
2917:
2915:
2912:
2907:
2903:
2902:
2901:
2898:
2896:
2893:
2891:
2888:
2886:
2883:
2881:
2878:
2877:
2875:
2872:
2867:
2863:
2859:
2849:
2846:
2844:
2841:
2839:
2836:
2834:
2831:
2829:
2826:
2824:
2821:
2816:
2812:
2809:
2805:
2802:
2798:
2797:
2796:
2793:
2791:
2788:
2786:
2783:
2781:
2778:
2777:
2775:
2773:
2769:
2760:
2756:
2755:
2754:
2751:
2749:
2746:
2741:
2737:
2734:
2730:
2727:
2723:
2720:
2716:
2715:
2714:
2711:
2709:
2706:
2704:
2701:
2699:
2696:
2694:
2691:
2689:
2686:
2685:
2683:
2681:
2677:
2668:
2664:
2663:
2662:
2659:
2657:
2654:
2652:
2649:
2647:
2644:
2639:
2635:
2632:
2628:
2625:
2621:
2618:
2614:
2613:
2612:
2609:
2607:
2604:
2603:
2601:
2599:
2595:
2589:
2586:
2584:
2581:
2579:
2576:
2574:
2571:
2569:
2566:
2565:
2563:
2561:
2557:
2551:
2548:
2546:
2543:
2542:
2540:
2538:
2534:
2528:
2525:
2520:
2516:
2513:
2512:Ancient Greek
2509:
2508:
2507:
2504:
2502:
2499:
2497:
2494:
2492:
2489:
2487:
2484:
2482:
2479:
2477:
2474:
2472:
2469:
2468:
2466:
2464:
2459:
2458:North America
2455:
2451:
2445:
2442:
2440:
2437:
2435:
2432:
2430:
2427:
2425:
2422:
2420:
2417:
2415:
2412:
2410:
2407:
2406:
2404:
2402:
2398:
2392:
2389:
2387:
2384:
2382:
2379:
2377:
2374:
2373:
2371:
2369:
2365:
2359:
2356:
2354:
2351:
2349:
2346:
2344:
2341:
2339:
2336:
2334:
2331:
2329:
2326:
2324:
2321:
2319:
2316:
2314:
2311:
2309:
2306:
2304:
2301:
2299:
2296:
2294:
2291:
2290:
2288:
2284:
2280:
2274:
2271:
2269:
2266:
2264:
2261:
2259:
2256:
2255:
2253:
2249:Northern Asia
2247:
2241:
2238:
2236:
2233:
2231:
2228:
2226:
2223:
2221:
2218:
2216:
2213:
2208:
2204:
2201:
2197:
2194:
2190:
2187:
2183:
2182:
2181:
2178:
2176:
2173:
2172:
2170:
2168:
2164:
2161:
2159:
2153:
2147:
2144:
2140:
2137:
2135:
2132:
2131:
2130:
2127:
2125:
2124:
2120:
2118:
2115:
2111:
2108:
2107:
2106:
2103:
2101:
2100:
2099:Nom de guerre
2096:
2092:
2089:
2087:
2084:
2082:
2079:
2078:
2077:
2074:
2072:
2071:
2067:
2065:
2062:
2061:
2059:
2056:
2052:
2048:
2042:
2039:
2037:
2034:
2030:
2027:
2026:
2025:
2022:
2018:
2015:
2013:
2010:
2009:
2008:
2005:
2003:
2000:
1998:
1995:
1993:
1990:
1988:
1985:
1984:
1982:
1978:
1972:
1969:
1967:
1964:
1962:
1959:
1955:
1952:
1951:
1950:
1947:
1945:
1942:
1940:
1937:
1932:
1928:
1927:
1926:
1923:
1921:
1918:
1916:
1913:
1911:
1908:
1906:
1903:
1901:
1898:
1894:
1891:
1889:
1886:
1884:
1881:
1880:
1879:
1876:
1874:
1871:
1869:
1866:
1865:
1863:
1859:
1853:
1850:
1848:
1845:
1843:
1840:
1839:
1837:
1833:
1823:
1820:
1819:
1818:
1815:
1813:
1809:
1806:
1805:
1804:
1801:
1799:
1796:
1794:
1791:
1790:
1788:
1786:Personal name
1784:
1780:
1776:
1769:
1764:
1762:
1757:
1755:
1750:
1749:
1746:
1732:
1729:
1728:
1727:
1726:South America
1724:
1720:
1717:
1713:
1710:
1709:
1708:
1705:
1704:
1703:
1700:
1696:
1695:United States
1693:
1691:
1688:
1686:
1683:
1681:
1678:
1677:
1676:
1675:North America
1673:
1669:
1666:
1664:
1661:
1660:
1659:
1656:
1652:
1649:
1647:
1644:
1642:
1639:
1637:
1634:
1633:
1632:
1629:
1627:
1624:
1622:
1619:
1618:
1616:
1612:
1606:
1603:
1601:
1598:
1596:
1593:
1591:
1590:Amateur radio
1588:
1586:
1583:
1579:
1576:
1575:
1574:
1571:
1570:
1568:
1564:
1560:
1553:
1548:
1546:
1541:
1539:
1534:
1533:
1530:
1524:
1520:
1517:
1514:
1513:Radio-Locator
1511:
1509:
1505:
1502:
1499:
1497:
1494:
1492:
1489:
1487:
1484:
1481:
1478:
1476:
1473:
1471:
1468:
1466:
1463:
1461:
1458:
1456:
1453:
1452:
1448:
1444:
1440:
1436:
1435:
1431:
1415:
1409:
1406:
1394:
1388:
1385:
1372:
1368:
1362:
1359:
1346:
1342:
1336:
1333:
1321:
1315:
1312:
1300:
1294:
1291:
1279:
1273:
1270:
1257:
1250:
1249:
1241:
1238:
1233:
1229:
1225:
1219:
1216:
1212:
1208:
1205:
1200:
1197:
1184:
1180:
1174:
1171:
1155:
1149:
1146:
1139:
1135:
1132:
1130:
1127:
1125:
1122:
1120:
1117:
1115:
1112:
1110:
1107:
1105:
1102:
1100:
1097:
1095:
1092:
1090:
1087:
1085:
1082:
1081:
1077:
1075:
1072:
1067:
1065:
1056:
1049:
1047:
1045:
1041:
1037:
1033:
1028:
1024:
1022:
1018:
1014:
1010:
1006:
1005:MAC addresses
1002:
998:
994:
990:
986:
982:
978:
974:
970:
966:
962:
954:
952:
950:
946:
942:
938:
933:
931:
927:
923:
919:
915:
911:
907:
903:
898:
896:
890:
882:
880:
878:
873:
871:
867:
863:
858:
856:
855:
850:luxury liner
849:
845:
841:
837:
833:
829:
825:
821:
817:
813:
810:
806:
802:
798:
794:
790:
785:
781:
779:
775:
771:
766:
765:Amateur radio
760:
756:
751:
746:
739:Amateur radio
738:
736:
734:
730:
726:
720:
718:
713:
711:
707:
703:
699:
695:
691:
687:
683:
679:
675:
671:
667:
661:
659:
655:
651:
647:
643:
639:
635:
632:stations use
631:
627:
623:
619:
615:
611:
607:
603:
599:
594:
591:
587:
583:
579:
575:
571:
567:
563:
559:
555:
551:
547:
543:
539:
535:
531:
527:
523:
519:
515:
511:
507:
503:
499:
495:
491:
485:
482:
478:
475:
471:
464:
460:
456:
451:
446:
438:
436:
432:
430:
426:
419:
411:
409:
406:
402:
398:
394:
388:
386:
382:
378:
374:
373:Flight number
370:
366:
362:
358:
355:conducting a
354:
350:
346:
342:
338:
334:
330:
326:
321:
319:
312:
304:
302:
300:
295:
290:
285:
283:
278:
274:
270:
262:
261:
257:
252:
247:
239:
234:
232:
230:
226:
222:
218:
214:
210:
206:
202:
198:
194:
190:
186:
183:
178:
176:
173:
169:
165:
161:
157:
153:
149:
145:
141:
137:
132:
124:
121:
113:
102:
99:
95:
92:
88:
85:
81:
78:
74:
71: â
70:
66:
65:Find sources:
59:
55:
49:
48:
43:This article
41:
37:
32:
31:
19:
4263:Multiplexing
4138:Transmission
4103:Nikola Tesla
4093:Henry Sutton
4048:Samuel Morse
3978:Robert Hooke
3943:Amos Dolbear
3878:John Bardeen
3797:
3777:Telautograph
3681:Mobile phone
3636:Edholm's law
3619:social media
3552:Broadcasting
3464:Signum manus
3452:Royal cypher
3417:
3402:Nomen nescio
3400:
3396:Nomenclature
3391:Naming taboo
3328:
3203:Professional
3046:of authority
2996:Saint's name
2661:Scandinavian
2283:Muslim world
2121:
2097:
2068:
1920:Occupational
1779:anthroponymy
1558:
1438:
1419:November 24,
1417:. Retrieved
1408:
1398:November 24,
1396:. Retrieved
1387:
1377:November 24,
1375:. Retrieved
1371:the original
1361:
1351:November 24,
1349:. Retrieved
1345:the original
1335:
1325:November 24,
1323:. Retrieved
1314:
1304:November 24,
1302:. Retrieved
1293:
1283:November 24,
1281:. Retrieved
1272:
1260:. Retrieved
1247:
1240:
1232:the original
1227:
1218:
1199:
1187:. Retrieved
1183:the original
1173:
1161:. Retrieved
1148:
1084:Brevity code
1068:
1061:
1031:
1029:
1025:
958:
940:
934:
929:
913:
905:
899:
892:
874:
869:
862:King Hussein
859:
853:
839:
831:
827:
823:
811:
800:
792:
788:
786:
782:
777:
773:
769:
763:
728:
724:
721:
714:
709:
705:
701:
697:
692:is used for
689:
685:
681:
677:
673:
669:
665:
662:
657:
653:
649:
645:
633:
625:
613:
609:
605:
601:
595:
568:in Buffalo;
544:in Detroit;
497:
489:
486:
467:
439:Broadcasting
433:
421:
389:
384:
380:
376:
368:
364:
360:
352:
340:
336:
322:
314:
298:
286:
282:marine radio
275:, which are
266:
258:
191:linking all
179:
159:
155:
152:call letters
151:
147:
143:
136:broadcasting
133:
131:
116:
107:
97:
90:
83:
76:
64:
52:Please help
47:verification
44:
4463:NPL network
4175:Radio waves
4113:Alfred Vail
4023:Hedy Lamarr
4008:Dawon Kahng
3968:Elisha Gray
3928:Yogen Dalal
3853:Nasir Ahmed
3787:Teleprinter
3651:Heliographs
3437:Proper name
3359:Name change
3213:Educational
3191:Substantive
3130:decorations
3013:Jewish name
3008:Dharma name
2973:By religion
2638:Hongkongese
2463:Australasia
2303:Azerbaijani
2036:Regnal name
2017:Temple name
1847:Middle name
1835:By sequence
1812:Matrilineal
1808:Patrilineal
1719:New Zealand
1651:Middle East
1480:FCCData.org
560:in Boston;
532:in Denver;
412:Spaceflight
341:tail number
207:operation;
156:call signal
69:"Call sign"
4602:Call signs
4596:Categories
4509:Antarctica
4468:Toasternet
4390:Television
3873:Paul Baran
3805:Television
3789:(teletype)
3782:Telegraphy
3760:transistor
3738:Phryctoria
3708:Photophone
3686:Smartphone
3676:Mass media
3430:Identifier
3413:Onomastics
3354:Legal name
3334:Deadnaming
3230:Diplomatic
3186:Subsidiary
3181:Hereditary
3072:Diplomatic
2991:Papal name
2900:Indonesian
2866:South Asia
2862:Indosphere
2828:Macedonian
2801:Belarusian
2708:Portuguese
2550:Lithuanian
2444:Zimbabwean
2240:Vietnamese
2200:Generation
2167:East Asian
2155:By culture
2129:Stage name
2086:Hypocorism
2051:Pseudonyms
2041:Slave name
1992:Birth name
1944:Teknonymic
1925:Patronymic
1905:Matronymic
1868:Diminutive
1842:First name
1798:Given name
1793:Birth name
1712:television
1626:Antarctica
1605:Spacecraft
1559:Call signs
1262:August 14,
1140:References
1109:ITU prefix
1036:VHF radios
848:White Star
820:St. John's
814:sent from
809:Morse code
759:California
733:trade mark
696:stations;
618:St. John's
425:cosmonauts
401:hovercraft
229:ITU prefix
110:March 2013
80:newspapers
18:Call signs
4493:Americas
4482:Locations
4453:Internet2
4214:Bandwidth
3918:Vint Cerf
3815:streaming
3793:Telephone
3733:Semaphore
3624:streaming
3442:Signature
3329:Call sign
3305:Anonymity
3240:Religious
3166:Chivalric
3087:Religious
3082:Judiciary
3067:Honorific
3050:of honour
2949:Sinhalese
2939:Pakistani
2924:Malaysian
2919:Cambodian
2823:Kashubian
2815:Ukrainian
2780:Bulgarian
2719:Praenomen
2656:Icelandic
2527:Hungarian
2328:Pakistani
2263:Mongolian
2117:Ring name
2110:Heteronym
2076:Nicknames
1997:Code name
1949:Toponymic
1939:Sobriquet
1915:Mononymic
1910:Metonymic
1852:Last name
1731:Argentina
1707:Australia
1585:Broadcast
1414:"QSLInfo"
1278:"QRZ.COM"
1129:Pseudonym
1050:Callbooks
985:ISM bands
945:fire team
860:The late
694:shortwave
550:Cleveland
484:country.
385:Delta 744
185:telegraph
148:call name
144:call sign
4561:Category
4448:Internet
4438:CYCLADES
4355:Ethernet
4305:Concepts
4229:terminal
4180:wireless
4003:Bob Kahn
3846:Pioneers
3671:Internet
3562:Cable TV
3459:Khelrtva
3447:Monogram
3408:Misnomer
3386:Namesake
3320:National
3277:Name day
3235:Judicial
3225:Business
3218:Honorary
3208:Academic
3198:Military
3171:Courtesy
3156:Academic
3121:Academic
3111:Emeritus
2914:Javanese
2895:Filipino
2880:Balinese
2848:Suffixes
2785:Croatian
2748:Romanian
2733:Cognomen
2631:Canadian
2617:American
2598:Germanic
2583:Scottish
2501:Georgian
2491:Estonian
2476:Armenian
2471:Albanian
2429:Ghanaian
2386:Hawaiian
2323:Mandaean
2230:Okinawan
2215:Japanese
2186:Courtesy
2146:Username
2139:Mononyms
2105:Pen name
2091:Monarchs
2064:Art name
2007:Necronym
1987:Aptronym
1900:Eponymic
1861:By trait
1680:Barbados
1614:By place
1600:Military
1595:Maritime
1578:Airlines
1573:Aircraft
1504:Archived
1256:New York
1207:Archived
1189:March 5,
1078:See also
1071:QSL card
1023:(IMSI).
816:Cornwall
642:FM radio
630:AM radio
612:through
463:Maryland
455:QSL card
365:November
337:N-number
325:aviation
305:Aviation
254:Russian
240:Maritime
201:telegram
182:railroad
4581:Commons
4571:Outline
4524:Oceania
4443:FidoNet
4428:ARPANET
4241:circuit
3810:digital
3539:History
3379:Surname
3300:Acronym
3293:Related
3272:Baptism
2906:Chinese
2890:Burmese
2885:Bengali
2838:Serbian
2808:Russian
2753:Spanish
2740:Agnomen
2703:Occitan
2698:Italian
2688:Catalan
2680:Romance
2667:Swedish
2611:English
2568:Cornish
2545:Latvian
2519:Cypriot
2496:Finnish
2409:Ashanti
2368:Oceania
2358:Turkish
2338:Persian
2333:Pashtun
2308:Bengali
2273:Tibetan
2180:Chinese
2123:Shikona
2029:Notname
1961:Patrial
1954:Surname
1931:Surname
1878:Epithet
1817:Affixes
1803:Surname
1702:Oceania
1566:By type
1204:GB90MGY
1163:May 19,
1119:Pan-pan
1017:cell ID
981:Part 15
935:In the
854:Titanic
805:Marconi
620:by the
453:A 1940
347:(ICAO)
269:Liberia
260:Arktika
197:address
175:encoded
162:) is a
94:scholar
4519:Europe
4489:Africa
4473:Usenet
4433:BITNET
4370:Mobile
4246:packet
3755:MOSFET
3750:device
3547:Beacon
3469:Tughra
3374:Middle
3344:Family
3148:Titles
3134:medals
3132:, and
3126:Orders
3106:Suffix
3059:Styles
3018:Hebrew
2944:Sindhi
2929:Indian
2843:Slovak
2833:Polish
2772:Slavic
2693:French
2651:Gothic
2646:German
2560:Celtic
2537:Baltic
2486:Basque
2454:Europe
2439:Yoruba
2381:Fijian
2348:Somali
2343:Sindhi
2318:Coptic
2313:Berber
2298:Arabic
2293:Afghan
2258:Kalmyk
2225:Manchu
2220:Korean
2207:Titles
1971:Virtue
1966:Unisex
1888:Common
1883:Animal
1690:Mexico
1685:Canada
1663:Russia
1658:Europe
1621:Africa
1441:2004.
1042:or an
993:handle
979:(CB),
924:, and
866:Jordan
842:, the
708:, and
684:, and
638:XEW-AM
590:WLS-TV
546:WJW-TV
516:, and
353:N978CP
273:Panama
166:for a
96:
89:
82:
75:
67:
4502:South
4497:North
4458:JANET
4395:Telex
4385:Radio
4224:Nodes
4219:Links
4140:media
3718:Radio
3703:Pager
3631:Drums
3597:video
3592:image
3582:audio
3419:-onym
3369:Given
3365:List
3250:Papal
3176:False
2790:Czech
2726:Nomen
2713:Roman
2606:Dutch
2588:Welsh
2573:Irish
2506:Greek
2391:MÄori
2353:Tatar
2268:Sakha
2175:Amami
1893:Plant
1646:Korea
1641:Japan
1636:India
1252:(PDF)
1157:(PDF)
1044:EPIRB
1040:radar
1001:SSIDs
989:Wi-Fi
969:Omega
965:Alpha
961:Decca
838:from
795:as a
656:, or
470:brand
381:DL744
227:; an
101:JSTOR
87:books
4514:Asia
4400:UUCP
4360:ISDN
3042:List
2959:Thai
2869:and
2578:Manx
2461:and
2434:Igbo
2134:List
2081:list
2070:BugĹ
2055:list
1777:and
1631:Asia
1421:2010
1400:2010
1379:2010
1353:2010
1327:2010
1306:2010
1285:2010
1264:2018
1191:2016
1165:2019
900:The
852:RMS
830:and
789:VO1S
668:and
658:-TDT
608:and
588:and
576:and
540:and
518:WOAI
510:WJAG
506:KDKA
496:and
481:Rock
479:", "
474:Cool
457:for
399:and
215:and
160:call
142:, a
138:and
73:news
4405:WAN
4375:NGN
4365:LAN
3646:Fax
3587:DCT
2934:Lao
2424:Ewe
2193:Art
1003:or
983:or
932:.
870:JY1
864:of
857:).
840:MGY
832:MGY
793:VO1
778:DBA
710:ZYU
706:ZYM
702:ZYD
698:ZYC
690:ZYG
686:ZYK
682:ZYL
678:ZYJ
674:ZYI
670:ZYB
666:ZYA
654:-TV
650:-FM
586:WLS
582:WGN
578:KHJ
574:KNX
570:KFI
566:WGR
562:WSM
558:WBZ
554:WBT
548:in
542:WJR
538:WWJ
534:WHO
530:KOA
526:KSL
512:in
502:KYW
459:WWV
289:FCC
271:or
150:or
134:In
56:by
4598::
3128:,
2456:,
1254:.
1226:.
1038:,
967:,
963:,
951:.
920:,
828:90
824:GB
770:J2
704:,
700:,
680:,
676:,
652:,
646:XH
634:XE
626:VO
614:CK
610:CH
606:CF
602:CB
584:,
572:;
552:;
477:FM
387:.
301:.
4532:)
4528:(
3523:e
3516:t
3509:v
3048:/
2873:)
2864:(
2057:)
2053:(
1810:/
1767:e
1760:t
1753:v
1551:e
1544:t
1537:v
1521:â
1423:.
1402:.
1381:.
1355:.
1329:.
1308:.
1287:.
1266:.
1193:.
1167:.
930:N
914:A
906:W
812:S
801:S
791:(
774:9
729:C
725:E
498:W
490:K
123:)
117:(
112:)
108:(
98:¡
91:¡
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