| AS | Desc | Country | IPv4 NUMs | IPv6 NUMs |
|---|---|---|---|---|
| AS2856 | BT-UK-AS - British Telecommunications PLC, GB |  United Kingdom |
12728064 | 549756207104 |
| AS3257 | GTT-BACKBONE - GTT Communications Inc., US |  United States |
8512512 | 343598432256 |
| AS3356 | LEVEL3 - Level 3 Parent, LLC, US | United States |
29079040 | 77331955712 |
| AS6461 | ZAYO-6461 - Zayo Bandwidth, US | United States |
1671936 | 17985699840 |
| AS8220 | COLT - COLT Technology Services Group Limited, GB | United Kingdom |
1498624 | 25770786816 |
| AS13237 | LAMBDANET-AS - euNetworks GmbH, DE |  Germany |
570880 | 107374182400 |