Tier 1 Network - Other Major Networks

Other Major Networks

The following networks are transit-free networks, even though they have settlement based or paid peering with one or more other networks:

Name Headquarters AS Number August 2012 degree Settlement Peer
Cogent Communications USA 174 3537 Sprint/AS1239 and Level 3 Communications (L3)/AS3356
Hurricane Electric USA 6939 2180 Global Crossing (GBLX)/AS3549 and TeliaSonera/AS1299 for IPv4—transit-free for IPv6
OpenTransit (France Telecom) France 5511 146 Possibly Verizon Business/AS701 & Sprint Nextel Corporation/AS1239

Due to the marketing considerations mentioned above, many people mistakenly believe that other networks are tier 1 when they are not. Because of this, many online resources and forums incorrectly list several non-qualifying networks as tier 1. Below is a list of some of these tier 2 networks which are often listed as tier 1, along with their upstream providers:

  • Allstream/AS15290 (Verizon Business/AS701 transit, AT&T/AS7018 transit, Level 3 Communications (L3)/AS3356 transit)
  • British Telecom/AS5400 (Global Crossing (GBLX)/AS3549 transit, Level 3 Communications (L3)/AS3356 transit)
  • Cable and Wireless/AS1273 (Level 3 Communications (L3)/AS3356, TeliaSonera/AS1299 transit)
  • PCCWGlobal/AS3491 (Global Crossing (GBLX)/AS3549 transit)
  • tw telecom/AS4323 (Sprint Nextel Corporation/AS1239 transit, paid peering with Level 3 Communications (L3)/AS3356)

Read more about this topic:  Tier 1 Network

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