27:
491:. Cogent claimed that DTAG failed to increase interconnection capacity between the two networks. According to a statement released by Cogent “Deutsche Telekom has interfered with the free flow of Internet traffic between Cogent customers and Deutsche Telekom customers by refusing to increase the capacity of the interconnection ports that allow the exchange of traffic”
245:
222:
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153:
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completely, due to this networks that are single homed behind AS6453 (in APAC) or AS174 will not be able to reach each other. This is similar but more serious to the previous regional NTT-Cogent depeerings (since the NTT ones "just" increased latency by routing via the US instead). Despite what
531:
in Europe, forcing all their peering traffic to go through their common remaining interconnections in USA, increasing latency and traffic loss between both networks, to complain against refusal of peering settlements in Asia from NTT.
1098:
700:
323:
based in the United States. Cogent's primary services consist of
Internet access and data transport, offered on a fiber optic, IP data-only network, along with colocation in data centers.
1453:
994:
339:. In three years, Cogent acquired 13 other failing carriers, purchasing $ 14 billion in capital for $ 60 million, including $ 4 billion worth of Property, Plant and Equipment.
474:
1299), their two networks lost mutual connectivity. The connection was reestablished March 28, 2008 with interconnection points in both the United States and Europe.
1146:
498:
with
Hurricane Electric, the (according to themselves) largest IPv6 network since 2009. Due to this, IPv6 traffic cannot be interchanged between both networks.
1458:
1102:
1196:
1081:
505:
have also stopped IPv6 peering in 2016. This is rumored to be closely tied to Cogent leveraging Google's IPv4 traffic via a paid customer or to maintain
1338:
704:
1468:
1249:
1363:
1320:
1002:
937:
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However, in June 2024 this peering dispute was resolved. Connectivity between Cogent and TATA has been restored and is operating normally.
168:
962:
571:
1171:
1463:
1051:
517:
1418:
1025:
495:
471:
1438:
1150:
484:
In
November 2015, CenturyLink signed a new long-term bilateral interconnection agreement with Cogent Communications.
1125:
477:
On June 6, 2011, Cogent automatically stopped peering with the US Department of Energy's Energy
Sciences Network (
320:
273:
1078:
374:
478:
137:
130:
444:
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There is a long-running dispute between Cogent and
Hurricane Electric. Cogent has been refusing to peer
368:
435:
Cogent has been controversial in the ISP market for low bandwidth pricing and its public disputes over
1300:
1279:
509:
with another network. As of
November 2023, the two networks appear to be reachable over IPv6 via
406:
249:
226:
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157:
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914:
380:
967:
867:
820:
751:
536:
510:
356:
773:
350:
528:
452:
420:
77:
972:
540:
Cogent reported, Cogent has not de-peered, rather blocked routes to TATA single-homed transit.
386:
393:
1321:"Internet Backbone Provider Cogent Blocks Pirate Bay and other "Pirate" Sites - TorrentFreak"
344:
488:
237:
113:
26:
889:
842:
795:
675:
622:
1381:
1129:
1085:
726:
521:
466:
On March 14, 2008, after Cogent stopped routing packets from
European network provider
448:
336:
332:
37:
1447:
1419:
https://x.com/DougMadory/status/1802731096217407740?t=GnXKgdQ63ap0NXHuMpuTMw&s=19
460:
456:
400:
58:
45:
1395:
1197:"Statement released in December 2015 when Cogent sued Deutsche Telekom | Cogent"
1029:
467:
424:
191:
63:
623:"Cogent Communications, Form 10-Q, Quarterly Report, Filing Date Nov 7, 2012"
412:
890:"Cogent Communications, Form 8-K, Current Report, Filing Date Oct 29, 2004"
868:"Cogent Communications, Form 8-K, Current Report, Filing Date Sep 17, 2004"
843:"Cogent Communications, Form 8-K, Current Report, Filing Date Mar 31, 2004"
392:
March 2004 – Acquires Fiber
Network and Equipment in Germany Out of Former
938:"T-Mobile sells wireline business to Cogent for $ 1, expects hefty charge"
915:"Cogent Communications, Form 8-K, Current Report, Filing Date Dec 3, 2004"
821:"Cogent Communications, Form 8-K, Current Report, Filing Date Jan 8, 2004"
796:"Cogent Communications, Form 8-K, Current Report, Filing Date Mar 3, 2003"
774:"Cogent Communications, Form 8-K, Current Report, Filing Date Apr 4, 2002"
752:"Cogent Communications, Form 8-K, Current Report, Filing Date Feb 5, 2002"
1266:
1339:"A court order blocked pirate sites that weren't supposed to be blocked"
1172:"CenturyLink, Cogent sign new interconnection agreement | FierceTelecom"
995:"Cogent's Standing Offer to Level 3: Turn the Connection Back On, Then…"
1099:"Sprint-Nextel Severs Its Internet Connection to Cogent Communications"
647:
506:
436:
1364:"Cogent starts de-peering with NTT due to lack of 'Asia connectivity'"
524:. This was unintentional due to a poorly crafted Spanish court order.
1122:
502:
362:
54:
670:
668:
600:
1224:
214:
16:
Multinational internet service provider based in the United States
419:
In
September, 2022, it was announced that Cogent was buying the
307:
1026:"France Telecom severs all network links to competitor Cogent"
440:
701:"Lightwave – Cogent Communications banks on Ethernet over IP"
1052:"Cogent De-peers Limelight Networks | Data Center Knowledge"
1433:
727:"Cogent Communications, Form 425, Filing Date Aug 29, 2001"
676:"Cogent Communications, Form S-4, Filing Date Oct 16, 2001"
566:
564:
562:
560:
558:
556:
281:
1250:"IPv6 internet broken, cogent/telia/hurricane not peering"
1382:"AS174 (Cogent) and AS2914 (NTT) have depeered in Europe"
963:"'Peering' Dispute With AOL Slows Cogent Customer Access"
335:
and was funded by angel investors including members of
355:
April 2002 – Acquires
Building Access Agreements from
1301:"Am I the only one who thinks this is disconcerting?"
1133:
302:
290:
272:
258:
235:
212:
189:
166:
147:
120:
109:
101:
83:
73:
43:
33:
1079:The Telia-Cogent Spat Could Ruin the Web For Many
1454:Internet service providers of the United States
527:In February 2024, Cogent withdrew peering with
1074:
1072:
1024:Kuri, JĂĽrgen; Smith, Robert W. (2005-04-21).
8:
19:
572:"2023 Cogent Communications Annual Report"
535:In May 2024, Cogent withdrew peering with
367:September 2002 – Acquires Major Assets of
25:
18:
361:April 2002 – Acquires Major US Assets of
343:September 2001 – Acquires the assets of
552:
481:) causing a disruption for three days.
427:for $ 1.00, assuming some liabilities.
1278:Murenin, Constantine A. (2017-02-25).
516:In February 2017, Cogent blocked many
1136:, Peter Vinthagen Simpson, 2008-03-30
7:
317:Cogent Communications Holdings, Inc.
20:Cogent Communications Holdings, Inc.
1459:Companies based in Washington, D.C.
1050:Miller, Rich (30 September 2007).
14:
1439:Cogent Communications SEC Filings
1299:Bonfiglio, Giorgio (2023-11-13).
415:Dedicated Access Business in U.S.
333:the peak of the industry's growth
244:
243:
221:
220:
198:
197:
175:
174:
152:
151:
1123:Telia resolves internet dispute
1469:Companies listed on the Nasdaq
1225:"BGP Peer Report - bgp.he.net"
520:and streaming sites including
487:In December 2015, Cogent sued
379:May 2003 – Acquires Assets of
331:Cogent was founded in 1999 at
1:
1149:. 2011-06-11. Archived from
1001:. 2012-09-07. Archived from
961:Noguchi, Yuki (2002-12-27).
936:Malik, Yuvraj (2022-09-07).
599:Cogent Communications, Inc.
507:settlement-free interconnect
89:; 25 years ago
1485:
1280:"Cogent & Google IPv6"
1267:adminhacks.org, March 2016
1147:"ESnet announcement Thurs"
399:September 2004 – Acquires
411:December 2004 – Acquires
373:February 2003 – Acquires
349:February 2002 – Acquires
321:internet service provider
298:
268:
24:
405:October 2004 – Acquires
385:January 2004 – Acquires
423:wireline business from
375:Fiber Network Solutions
1088:, Om Malik, 2008-03-14
445:Level 3 Communications
183:(129.329) million
1464:Transit-free networks
1176:www.fiercetelecom.com
1056:Data Center Knowledge
579:Cogent Communications
1400:X (formerly Twitter)
160:940.922 million
968:The Washington Post
537:Tata Communications
511:Tata Communications
327:Acquisition history
319:is a multinational
260:Number of employees
21:
1327:. 9 February 2017.
1134:http://thelocal.se
1128:2008-06-07 at the
1084:2016-12-27 at the
459:(March 2008), and
453:Limelight Networks
421:Sprint Corporation
389:France & Spain
369:FiberCity Networks
252:0.422 million
229:3.211 billion
206:1.273 billion
78:Telecommunications
917:. secdatabase.com
895:. secdatabase.com
870:. secdatabase.com
848:. secdatabase.com
823:. secdatabase.com
801:. secdatabase.com
776:. secdatabase.com
754:. secdatabase.com
732:. secdatabase.com
681:. secdatabase.com
628:. secdatabase.com
314:
313:
264:1,947 (2023)
129:David Schaeffer (
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1252:. Archived from
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1101:. Archived from
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1038:
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1021:
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971:. Archived from
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723:
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703:. Archived from
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489:Deutsche Telekom
463:(October 2008).
431:Peering disputes
407:Aleron Broadband
310:
308:www.cogentco.com
253:
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169:Operating income
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114:Washington, D.C.
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1130:Wayback Machine
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1086:Wayback Machine
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496:settlement-free
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136:Thaddeus Weed (
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105:David Schaeffer
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1428:External links
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1387:
1384:. 14 Feb 2024.
1373:
1370:. 14 Feb 2024.
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1256:on 2009-10-16.
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664:
648:"About Cogent"
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522:The Pirate Bay
449:France Telecom
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381:Applied Theory
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337:Keiretsu Forum
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1434:Official site
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1005:on 2012-09-07
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975:on 2012-07-14
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707:on 2009-06-15
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401:Global Access
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357:OnSite Access
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1414:
1403:. Retrieved
1399:
1390:
1376:
1367:
1358:
1346:. Retrieved
1343:Ars Technica
1342:
1333:
1325:TorrentFreak
1324:
1315:
1304:. Retrieved
1294:
1283:. Retrieved
1273:
1262:
1254:the original
1243:
1232:. Retrieved
1228:
1219:
1207:. Retrieved
1204:cogentco.com
1203:
1191:
1179:. Retrieved
1175:
1166:
1155:. Retrieved
1151:the original
1141:
1118:
1107:. Retrieved
1103:the original
1093:
1059:. Retrieved
1055:
1045:
1033:. Retrieved
1030:Heise online
1019:
1007:. Retrieved
1003:the original
998:
989:
977:. Retrieved
973:the original
966:
956:
945:. Retrieved
941:
931:
919:. Retrieved
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897:. Retrieved
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803:. Retrieved
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778:. Retrieved
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756:. Retrieved
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734:. Retrieved
721:
709:. Retrieved
705:the original
695:
683:. Retrieved
655:. Retrieved
652:cogentco.com
651:
642:
630:. Retrieved
617:
605:. Retrieved
594:
582:. Retrieved
578:
542:
534:
526:
515:
500:
493:
486:
483:
476:
465:
434:
418:
351:Allied Riser
330:
316:
315:
254: (2023)
238:Total equity
231: (2023)
215:Total assets
208: (2023)
185: (2023)
162: (2023)
110:Headquarters
34:Company type
1009:January 16,
603:. PeeringDB
601:"PeeringDB"
501:Cogent and
64:S&P 600
1448:Categories
1405:2024-05-20
1368:LowEndTalk
1306:2023-11-14
1285:2023-11-14
1234:2024-09-18
1229:bgp.he.net
1157:2023-05-10
1109:2015-12-06
1061:August 15,
999:archive.is
979:October 6,
947:2023-05-10
547:References
192:Net income
122:Key people
921:March 27,
899:March 27,
874:March 27,
852:March 27,
827:March 27,
805:March 27,
780:March 27,
758:March 27,
736:March 27,
685:March 27,
657:April 10,
632:March 27,
413:NTT/Verio
387:LambdaNet
294:100 Tbps+
66:component
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455:(2007),
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