AS20057 Announced Prefixes - page 11
1,640 prefixes originated in BGP by AS20057 AT&T Enterprises.
Prefixes 1,001-1,100
| Prefix | RPKI | IRR | Last Seen |
|---|---|---|---|
| 166.137.12.0/24 | Valid | - | 2026-10-13 |
| 166.137.13.0/24 | Valid | - | 2026-10-13 |
| 166.137.14.0/24 | Valid | - | 2026-10-13 |
| 166.137.16.0/22 | Valid | - | 2026-10-13 |
| 166.137.48.0/21 | Valid | - | 2026-10-13 |
| 166.137.80.0/22 | Valid | - | 2026-10-13 |
| 166.137.89.0/24 | Valid | - | 2026-10-13 |
| 166.137.90.0/24 | Valid | - | 2026-10-13 |
| 166.137.91.0/24 | Valid | - | 2026-10-13 |
| 166.137.96.0/22 | Valid | - | 2026-10-13 |
| 166.137.100.0/24 | Valid | - | 2026-10-13 |
| 166.137.102.0/24 | Valid | - | 2026-10-13 |
| 166.137.103.0/24 | Valid | - | 2026-10-13 |
| 166.137.104.0/22 | Valid | - | 2026-10-13 |
| 166.137.112.0/22 | Valid | - | 2026-10-13 |
| 166.137.117.0/24 | Valid | - | 2026-10-13 |
| 166.137.118.0/24 | Valid | - | 2026-10-13 |
| 166.137.124.0/24 | Valid | - | 2026-10-13 |
| 166.137.125.0/24 | Valid | - | 2026-10-13 |
| 166.137.126.0/24 | Valid | - | 2026-10-13 |
| 166.137.128.0/17 | Valid | - | 2026-10-13 |
| 166.137.132.0/23 | Valid | - | 2026-10-13 |
| 166.137.136.0/24 | Valid | - | 2026-10-13 |
| 166.137.137.0/24 | Valid | - | 2026-10-13 |
| 166.137.138.0/24 | Valid | - | 2026-10-13 |
| 166.137.139.0/24 | Valid | - | 2026-10-13 |
| 166.137.140.0/24 | Valid | - | 2026-10-13 |
| 166.137.141.0/24 | Valid | - | 2026-10-13 |
| 166.137.142.0/24 | Valid | - | 2026-10-13 |
| 166.137.143.0/24 | Valid | - | 2026-10-13 |
| 166.137.144.0/24 | Valid | - | 2026-10-13 |
| 166.137.145.0/24 | Valid | - | 2026-10-13 |
| 166.137.146.0/24 | Valid | - | 2026-10-13 |
| 166.137.147.0/24 | Valid | - | 2026-10-13 |
| 166.137.148.0/24 | Valid | - | 2026-10-13 |
| 166.137.149.0/24 | Valid | - | 2026-10-13 |
| 166.137.160.0/22 | Valid | - | 2026-10-13 |
| 166.137.168.0/22 | Valid | - | 2026-10-13 |
| 166.137.172.0/22 | Valid | - | 2026-10-13 |
| 166.137.176.0/22 | Valid | - | 2026-10-13 |
| 166.137.191.0/24 | Valid | - | 2026-10-13 |
| 166.137.208.0/24 | Valid | - | 2026-10-13 |
| 166.137.210.0/24 | Valid | - | 2026-10-13 |
| 166.137.216.0/23 | Valid | - | 2026-10-13 |
| 166.137.221.0/24 | Valid | - | 2026-10-13 |
| 166.137.222.0/24 | Valid | - | 2026-10-13 |
| 166.137.223.0/24 | Valid | - | 2026-10-13 |
| 166.137.224.0/23 | Valid | - | 2026-10-13 |
| 166.137.226.0/23 | Valid | - | 2026-10-13 |
| 166.137.228.0/23 | Valid | - | 2026-10-13 |
| 166.137.230.0/23 | Valid | - | 2026-10-13 |
| 166.137.232.0/23 | Valid | - | 2026-10-13 |
| 166.137.234.0/23 | Valid | - | 2026-10-13 |
| 166.137.240.0/24 | Valid | - | 2026-10-13 |
| 166.137.241.0/24 | Valid | - | 2026-10-13 |
| 166.137.242.0/24 | Valid | - | 2026-10-13 |
| 166.137.243.0/24 | Valid | - | 2026-10-13 |
| 166.137.244.0/24 | Valid | - | 2026-10-13 |
| 166.137.245.0/24 | Valid | - | 2026-10-13 |
| 166.137.246.0/24 | Valid | - | 2026-10-13 |
| 166.137.247.0/24 | Valid | - | 2026-10-13 |
| 166.137.248.0/24 | Valid | - | 2026-10-13 |
| 166.137.249.0/24 | Valid | - | 2026-10-13 |
| 166.137.252.0/24 | Valid | - | 2026-10-13 |
| 166.137.253.0/24 | Valid | - | 2026-10-13 |
| 166.137.254.0/24 | Valid | - | 2026-10-13 |
| 166.137.255.0/24 | Valid | - | 2026-10-13 |
| 166.138.160.0/19 | Valid | ARIN | 2026-10-13 |
| 166.138.168.0/23 | Valid | ARIN | 2026-10-13 |
| 166.138.170.0/24 | Valid | ARIN | 2026-10-13 |
| 166.138.172.0/24 | Valid | ARIN | 2026-10-13 |
| 166.138.192.0/18 | Valid | ARIN | 2026-10-13 |
| 166.147.64.0/20 | Valid | ARIN | 2026-10-13 |
| 166.147.68.0/24 | Valid | ARIN | 2026-10-13 |
| 166.147.69.0/24 | Valid | ARIN | 2026-10-13 |
| 166.147.73.0/24 | Valid | ARIN | 2026-10-13 |
| 166.147.80.0/20 | Valid | ARIN | 2026-10-13 |
| 166.147.86.0/24 | Valid | ARIN | 2026-10-13 |
| 166.147.87.0/24 | Valid | ARIN | 2026-10-13 |
| 166.147.89.0/24 | Valid | ARIN | 2026-10-13 |
| 166.147.96.0/20 | Valid | ARIN | 2026-10-13 |
| 166.147.98.0/24 | Valid | ARIN | 2026-10-13 |
| 166.147.104.0/24 | Valid | ARIN | 2026-10-13 |
| 166.147.105.0/24 | Valid | ARIN | 2026-10-13 |
| 166.147.112.0/20 | Valid | ARIN | 2026-10-13 |
| 166.147.121.0/24 | Valid | ARIN | 2026-10-13 |
| 166.147.123.0/24 | Valid | ARIN | 2026-10-13 |
| 166.147.124.0/24 | Valid | ARIN | 2026-10-13 |
| 166.147.125.0/24 | Valid | ARIN | 2026-10-13 |
| 166.147.126.0/24 | Valid | ARIN | 2026-10-13 |
| 166.147.127.0/24 | Valid | ARIN | 2026-10-13 |
| 166.170.0.0/16 | Valid | ARIN | 2026-10-13 |
| 166.170.0.0/24 | Valid | ARIN | 2026-10-13 |
| 166.170.3.0/24 | Valid | ARIN | 2026-10-13 |
| 166.170.4.0/24 | Valid | ARIN | 2026-10-13 |
| 166.170.5.0/24 | Valid | ARIN | 2026-10-13 |
| 166.170.10.0/24 | Valid | ARIN | 2026-10-13 |
| 166.170.11.0/24 | Valid | ARIN | 2026-10-13 |
| 166.170.13.0/24 | Valid | ARIN | 2026-10-13 |
| 166.170.14.0/24 | Valid | ARIN | 2026-10-13 |