Tier 2 network
A tier 2 network is an Internet service provider which engages in the practice of peering with other networks, but which 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 to reach the Internet.
List of large or important tier 2 networks
- Hurricane Electric AS6939 (buys IPv4-only transit from Telia Carrier/AS1299, Verizon Enterprise Solutions (formerly UUNET)/AS701)[1]
- TDC AS3292 (buys transit from Level3/AS3356, Sprint/AS1239, Telia Carrier/AS1299, NTT America/AS2914)
- Easynet AS4589 (buys transit including NTT America/AS2914, GTT/AS3257)
- Finger Lakes Technologies Group, Inc. AS14477 (buys transit from Level3/AS3356, Cogent/AS174, AboveNet/AS6461)
- British Telecom AS5400 (buys transit from Telia Carrier/AS1299 and NTT America/AS2914, Global Telecom & Technology (GTT)/AS4436)
- Kaia Global Networks AS251 (buys transit from Level3/AS3356, Tata Communications/AS6453, Telecom Italia Sparkle/AS6762)
- KCOM Group AS12390 (buys transit from KPN/AS286, Level 3/AS3356, Cogent/AS174, NTT America/AS2914)
- Cable and Wireless AS1273 (buys transit from Level 3 Communications/AS3356, Telia Carrier/AS1299, Verizon Enterprise Solutions (formerly UUNET)/AS701, Global Telecom & Technology (GTT)/AS4436)
- Vodafone AS3209 (formerly ARCOR AG Germany) (buys transit from Level3/AS3356, Telia Carrier/AS1299)
- Virgin Media AS5089 (buys transit from GTT/AS3257, AboveNet/AS6461)
- PCCW Global AS3491 (buys transit from Level 3/AS3356, Global Telecom & Technology (GTT)/AS4436)
- Tele2 (formerly SWIPNet) AS1257 (buys transit from Sprint/AS1239, Cogent/AS174)
- tw telecom AS4323 (buys transit from Level 3 Communications/AS3356)
- FiberRing AS38930 (buys transit from NTT America/AS2914, Telia Carrier/AS1299, Tata Communications/AS6453, Cogent/AS174)
- Internap AS14744 and others (buys transits from Cogent/AS174, NTT America/AS2914, XO Communications/AS2828, AboveNet/AS6461, CenturyLink/AS209, AT&T/AS7018)
- Interoute AS8928 (buys transit from Telia Carrier/AS1299, NTT America/AS2914, GTT/AS3257, Global Telecom & Technology (GTT)/AS4436)
- Comcast AS7922 (buys transit from Tata Communications/AS6453, NTT America/AS2914)
- Spirit AS2711 (buys transit from Level3/AS3356, Cogent/AS174, Telia Carrier/AS1299, NTT America/AS2914, GTT/AS3257, Hurricane Electric/AS6939)
- Stealth Communications AS8002 (buys transit from Tata Communications/AS6453, Cogent/AS174)
- KDDI AS2516 (buys transit from Level3/AS3356, Tata Communications/AS6453, Verizon/AS701, Global Telecom & Technology (GTT)/AS4436, CenturyLink/AS209)
- Korea Telecom AS4766 (buys transit from Cogent/AS174, Telia Carrier/AS1299, Tata Communications/AS6453, Hurricane Electric/AS6939, Global Telecom & Technology (GTT)/AS4436, Sprint/AS1239)
- Fibrenoire AS22652 (buys transit from Level3/AS3356, Tata Communications/AS6453, GTT/AS3257)
- Telkom Indonesia International AS7713 (buys transit from Level3/AS3356, Cogent/AS174, Telia Carrier/AS1299, NTT America/AS2914, Telecom Italia Sparkle/AS6762, Tata Communications/AS6453)
- PT Mora Telematika Indonesia AS23947 (buys transit from NTT America/AS2914, GTT/AS3257, Tata Communications/AS6453)
The ASxxx refer to each network's IANA-assigned AS number.
See also
References
- ↑ "CAIDA AS Rank". 2016-01-25. Retrieved 2015-07-29.
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