Summary
| ASN | AS7018 AT&T Enterprises, LLC |
| BGP | 12.128.0.0/9 |
| Registry | ARIN |
| Country | US |
| Status | assigned |
| IP Version | IPv4 |
| Allocated | 1983-08-23 |
| Last Updated | 2026-08-26 |
| 12.221.17.0/24 | N/A | 0 | 1 | 1 |
| 12.221.65.0/24 | N/A | 0 | 1 | 1 |
| 12.221.74.0/24 | N/A | 0 | 1 | 1 |
| 12.221.82.0/24 | N/A | 0 | 1 | 1 |
| 12.221.96.0/24 | N/A | 0 | 1 | 1 |
| 12.221.116.0/24 | N/A | 0 | 1 | 1 |
| 12.221.123.0/24 | N/A | 0 | 1 | 1 |
| 12.221.136.0/24 | N/A | 0 | 1 | 2 |
| 12.221.137.0/24 | N/A | 0 | 1 | 1 |
| 12.221.138.0/24 | N/A | 0 | 1 | 1 |
| 12.221.139.0/24 | N/A | 0 | 1 | 1 |
| 12.221.144.0/24 | N/A | 0 | 1 | 1 |
| 12.221.150.0/24 | N/A | 0 | 1 | 1 |
| 12.221.212.0/24 | N/A | 0 | 1 | 1 |
| 12.221.217.0/24 | N/A | 0 | 1 | 1 |
| 12.221.236.0/24 | N/A | 0 | 1 | 1 |
| 12.221.237.0/24 | N/A | 0 | 1 | 1 |
| 12.221.238.0/24 | N/A | 0 | 1 | 1 |
| 12.221.239.0/24 | N/A | 0 | 1 | 1 |