Comparison of IPv6 support by major transit providers

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Internet Protocol Version 6 (IPv6) is not yet universally available as of 2012, but support by major ISPs and transit providers is steadily increasing. Many major transit providers offer an IPv6 service to their customers, but do not have a ubiquitous view of all other IPv6 networks. Other aspects of this service vary widely from one major ISP to the next.

Network ASN Routes Carried[note 1] Customer Routes[note 2] Maximum Prefix Length Partitioned From[note 3] Updated[note 4]
route-views6[note 5] 13,601[1] /48 2013-07-27
AT&T 7018 13,394 313 2013-07-27
Cable & Wireless Worldwide 1273 12,971 408 2013-07-29
Cogent Communications[note 6] 174 8,852 6830, AS6939, AS30071 2012-10-03
Comcast 7922 15,474 153 /48 2013-01-28
Global Crossing 3549 7,299 2,267 2011-12-31
Hurricane Electric 6939 13,108 7,200 /48 AS174 2013-07-27
IIJ 2497 13,237 152 2013-07-27
Init Seven AG 13030 13,631 385 2013-07-29
Internap 10913, others 10,495 2012-10-12
Internet 2 11537 7,546 754 2011-12-31
Internode 4739 13,462 2013-07-27
KPN 286 13,177 400 2013-07-29
Level 3 Communications 3356 13,072 4,504 /48 2013-07-27
Neotelecoms 8218 7,269 117 /48 2011-10-31
nLayer Communications (now Global Telecom & Technology) 4436 13,197 355 /48 2013-07-27
NTT Communications 2914 13,208 3,230 /48 2013-07-27
Qwest 209 13,469 487 /48 2013-07-27
Savvis[note 7] 3561 11,055 190 /48 2012-12-29
Sprint 1239 9,131 /48 2012-07-10
Sprint[note 8] 6175 3,766 /48 2010-12-22
Tata Communications 6453 5,033 480 /48 2011-04-21
Telecom Italia Sparkle 6762 13,108 586 /48 2013-07-27
TeliaSonera International Carrier 1299 13,067 3,734 /48 2013-07-27
Inteliquent (formerly Tinet) 3257 12,842 3,133 /48 2013-07-27
Libertyglobal (is the upstream for AS20825, AS29562 so they share the same partition problems) 6830 13,621 107 /48 AS174 2013-08-01
Verizon Business 701 12,080 452 /48 2013-03-28
XO Communications 2828 11,862 424 /48 2013-01-10
PIPE Networks 24130 9,615 47 /48 2012-07-31


See also[edit]

Notes[edit]

  1. ^ Number of routes advertised to customers
  2. ^ Number of routes advertised over non-customer BGP peering sessions
  3. ^ Some networks do not have global reach-ability to some other major networks.
  4. ^ This data changes frequently as IPv6 adoption progresses.
  5. ^ Number of unique IPv6 routes (/48 or shorter) visible on route-views6.routeviews.org MRT, for comparison to transit networks
  6. ^ As of 2010-JUL-24, in certain regions Cogent charges a $50 per month fee to configure IPv6 for their customers.
  7. ^ Savvis has advised their customers that their backbone is IPv6 capable since 2009. However, they do not have an offering for transit service to customers and to look for offerings in 2012. In addition, Savvis managed hosting and cloud services do not support IPv6, with NO roadmap or release plans announced. (February 2011)
  8. ^ Sprint has ceased implementing new tunnels on their test network and will begin removing them on January 31, 2011 in favor of dual-stack on AS1239.

References[edit]

External links[edit]