| AS | Desc | Country / Region | IPv4 NUMs | IPv6 NUMs |
|---|---|---|---|---|
| AS3257 | GTT-BACKBONE - GTT Communications Inc., US |  United States |
8552448 | 442382745600 |
| AS6461 | ZAYO-6461 - Zayo Bandwidth, US | United States |
1751552 | 51808436224 |
United Kingdom