Cogent Communications
 |
|
| Public | |
| Traded as | NASDAQ: CCOI |
| Industry | Telecommunications |
| Founded | 1999 |
| Headquarters | Washington, D.C., U.S. |
|
Key people
|
Dave Schaeffer Founder/President/CEO |
| Revenue |  $ 380.0 million (2014)[1] |
 $ 53.90 million (2014)[1] |
|
| $ 797,000 (2014)[1] |
|
| Total assets | $761.7 million (2014)[1] |
| Total equity | $83.8 million (2014)[1] |
|
Number of employees
|
772 (Feb 2014)[1] |
| Website | www.cogentco.com |
| Primary ASN | 174 |
|---|
Cogent Communications is a multinational internet service provider based in the United States. Cogent's primary services consist of Internet access and data transport, offered on fiber optic, IP data-only network, along with colocation in data centers.[2]
Cogent's AS (174) has one of the highest-ranked connectivity degrees on the Internet.[3][4]
Acquisition history
Cogent was founded in 1999 at the peak of the industry's growth.[5] 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.[6]
- September 2001 - Acquires the assets of NetRail[5]
- February 2002 - Acquires Allied Riser[7][8]
- April 2002 - Acquires Building Access Agreements from OnSite Access
- April 2002 - Acquires Major US Assets of PSINet[9]
- September 2002 - Acquires Major Assets of FiberCity Networks
- February 2003 - Acquires Fiber Network Solutions[10]
- May 2003 - Acquires Assets of Applied Theory
- January 2004 - Acquires LambdaNet France & Spain[11]
- March 2004 - Acquires Fiber Network and Equipment in Germany Out of Former Carrier1 Assets[12]
- September 2004 - Acquires Global Access[13]
- October 2004 - Acquires Aleron Broadband[14]
- December 2004 - Acquires NTT/Verio Dedicated Access Business in U.S.[15]
Peering
Cogent has been controversial in the ISP market for low bandwidth pricing and its public disputes over peering with AOL (2003),[16] France Telecom (2006),[17] Level 3 Communications (2005),[18] TeliaSonera (March 2008)[19] and Sprint Nextel (October 2008).[20] Sprint has stated that no peering agreement existed with Cogent, and that they were severing connections from a failed settlement-free peering trial the previous year. Cogent was notified of the impending disconnections and Sprint has temporarily reinstated the connection to give Cogent additional time to arrange for peering.[21][22]
On March 14, 2008, after Cogent stopped routing packets from European network provider Telia (AS 1299), their two networks lost mutual connectivity.[19] The connection was reestablished March 28, 2008 with interconnection points in both the United States and Europe.[23]
On June 6, 2011, Cogent automatically stopped peering with The Department of Energy Sciences Network (ESnet)[24] causing a disruption for 3 days.
Cogent has yet to agree on peering with one of the biggest IPv6 connectivity providers, Hurricane Electric. As of 2011 April, direct connectivity between the two networks is impossible.[25]
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Visualizing Internet Topology at a Macroscopic Scale April 2005
- ↑ AS ranking
- ↑ 5.0 5.1 Lua error in package.lua at line 80: module 'strict' not found. Cite error: Invalid
<ref>tag; name "Cogent-Communications-Oct-2001-S-4" defined multiple times with different content - ↑ Lightwave - Cogent Communications banks on Ethernet over IP
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Cogent Press release Level3 dispute Oct 7 2005
- ↑ 19.0 19.1 The Telia-Cogent Spat Could Ruin the Web For Many, Om Malik, 2008-03-14
- ↑ Sprint-Nextel Severs Its Internet Connection to Cogent Communications
- ↑ https://www.sprint.net/cogent.php
- ↑ Cogent Co
- ↑ Telia resolves internet dispute, http://thelocal.se, Peter Vinthagen Simpson, 2008-03-30
- ↑ Important: Status regarding Cogent connectivity, Energy Sciences Network press release, Steve Cotter, Lawrence Berkeley National Lab
- ↑ E-mail from Hurricane Electric explaining why the two networks are severed on the nanog (North American Network Operators Group) mailing list
