Tier 2 network
From Wikipedia, the free encyclopedia
 |
This article needs additional citations for verification. (August 2013) |
A tier 2 network is an Internet service provider who engages in the practice of peering with other networks, but who also purchases IP transit to reach some portion of the Internet.
Tier 2 providers are the most common Internet service providers as it is much easier to purchase transit from a Tier 1 network than it is to peer with them and attempt becoming a tier 1 carrier.
The term tier 3 is sometimes also used to describe networks who solely purchase IP transit from other networks (typically tier 2 networks) to reach the Internet.
List of large or important tier 2 IPv4 ISPs[edit]
- Finger Lakes Technologies Group, Inc. AS14477 (buys transit from Level3/AS3356, GBLX/AS3549 and Cogent/AS174)
- Atrato IP Networks AS5580 (buys transit from NTT Communications Corp/AS2914, Level3/AS3356, and TeliaSonera International Carrier/AS1299)
- British Telecom/AS5400 (buys transit from NTT Communications Corp/AS2914 and Level 3/AS3356)
- WarwickNet AS48961 (buys transit from NTT Communications Corp/AS2914, Level3/AS3356, Inteliquent/AS3257)
- Kaia Global Networks AS251 (buys transit from NTT Communications Corp/AS2914)
- KCOM Group/AS12390 (buys transit from KPN/AS286 and Level 3/AS3356)
- Cable and Wireless AS1273 (buys transit from Level3/AS3356 and TeliaSonera International Carrier/AS1299)
- Vodafone AS3209 (formerly ARCOR AG Germany) (buys transit from Level3/AS3356, GBLX/AS3549, TeliaSonera International Carrier/AS1299, and Interoute/AS8928)
- Virgin Media/ Virgin Media Business AS5089 (buys transit from Level3/AS3356, GBLX/AS3549, gtt/AS3257, AboveNet/AS6461, and Cable and Wireless/AS1273)
- PCCW Global AS3491 (buys transit from GBLX/AS3549, Tata Communications/AS6453, and Verizon/AS701)
- Swiftway AS35017 (buys transit from NTT Communications Corp/AS2914], GBLX/AS3549], and Cogent/AS174)[1]
- Tele2 (formerly SWIPNet) AS1257 (buys transit from Sprint Nextel/AS1239)
- tw telecomAS4323 (buys transit from Sprint Nextel/AS1239)
- FiberRing AS38930 (buys transit from NTT Communications Corp/AS2914, Level3/AS3356, TeliaSonera International Carrier/AS1299), Tata Communications/AS6453, and Cogent/AS174)
- Internap AS14744 and others (buys transits from multiple Tier 1 Networks)
- Interoute AS8928 (buys transit from NTT Communications Corp/AS2914 and Inteliquent/AS3257)
- Global Telecom & Technology AS25973 (buys transit from Level3/AS3356 and GBLX/AS3549)
- Comcast AS7922 (buys transit from Tata Communications/AS6453)
- Sling Broadband AS33724 (buys transit from Level3/AS3356) and Cogent/AS174)
- Spirit Communications AS2711 (buys transit from GBLX/AS3549 and Inteliquent/AS3257)
- Stealth Communications AS8002 (buys transit from Level3/AS3356, GBLX/AS3549, Inteliquent/AS3257, Sprint Nextel/AS1239, Verizon/AS701)
- Fibrenoire AS22652 (buys transit from Level3/AS3356, Tata Communications/AS6453, Inteliquent/AS3257)
- Telkom Indonesia International AS7713 (buys transit from Level3/AS3356, Tata Communications/AS6453)
- PT Mora Telematika Indonesia AS23947 (buys transit from NTT America/AS2914, Tata Communications/AS6453)
The ASxxx refer to each network's IANA-assigned AS number.
