AS20057 Announced Prefixes - page 14
1,640 prefixes originated in BGP by AS20057 AT&T Enterprises.
Prefixes 1,301-1,400
| Prefix | RPKI | IRR | Last Seen |
|---|---|---|---|
| 166.201.184.0/22 | Valid | ARIN | 2026-10-13 |
| 166.201.188.0/22 | Valid | ARIN | 2026-10-13 |
| 166.201.193.0/24 | Valid | ARIN | 2026-10-13 |
| 166.201.196.0/22 | Valid | ARIN | 2026-10-13 |
| 166.201.201.0/24 | Valid | ARIN | 2026-10-13 |
| 166.201.204.0/24 | Valid | ARIN | 2026-10-13 |
| 166.201.206.0/23 | Valid | ARIN | 2026-10-13 |
| 166.201.208.0/22 | Valid | ARIN | 2026-10-13 |
| 166.201.215.0/24 | Valid | ARIN | 2026-10-13 |
| 166.201.220.0/22 | Valid | ARIN | 2026-10-13 |
| 166.201.225.0/24 | Valid | ARIN | 2026-10-13 |
| 166.201.226.0/24 | Valid | ARIN | 2026-10-13 |
| 166.201.228.0/23 | Valid | ARIN | 2026-10-13 |
| 166.201.230.0/23 | Valid | ARIN | 2026-10-13 |
| 166.201.232.0/23 | Valid | ARIN | 2026-10-13 |
| 166.202.0.0/16 | Valid | ARIN | 2026-10-13 |
| 166.203.0.0/16 | Valid | ARIN | 2026-10-13 |
| 166.203.0.0/20 | Valid | ARIN | 2026-10-13 |
| 166.203.16.0/20 | Valid | ARIN | 2026-10-13 |
| 166.203.32.0/20 | Valid | ARIN | 2026-10-13 |
| 166.203.48.0/20 | Valid | ARIN | 2026-10-13 |
| 166.203.64.0/20 | Valid | ARIN | 2026-10-13 |
| 166.203.80.0/20 | Valid | ARIN | 2026-10-13 |
| 166.203.96.0/20 | Valid | ARIN | 2026-10-13 |
| 166.203.112.0/20 | Valid | ARIN | 2026-10-13 |
| 166.203.128.0/17 | Valid | ARIN | 2026-10-13 |
| 166.203.128.0/20 | Valid | ARIN | 2026-10-13 |
| 166.203.160.0/20 | Valid | ARIN | 2026-10-13 |
| 166.203.176.0/20 | Valid | ARIN | 2026-10-13 |
| 166.203.192.0/22 | Valid | ARIN | 2026-10-13 |
| 166.203.196.0/22 | Valid | ARIN | 2026-10-13 |
| 166.203.200.0/24 | Valid | ARIN | 2026-10-13 |
| 166.203.204.0/23 | Valid | ARIN | 2026-10-13 |
| 166.203.206.0/24 | Valid | ARIN | 2026-10-13 |
| 166.203.208.0/20 | Valid | ARIN | 2026-10-13 |
| 166.203.224.0/20 | Valid | ARIN | 2026-10-13 |
| 166.203.240.0/21 | Valid | ARIN | 2026-10-13 |
| 166.203.248.0/23 | Valid | ARIN | 2026-10-13 |
| 166.203.250.0/24 | Valid | ARIN | 2026-10-13 |
| 166.204.0.0/17 | Invalid | - | 2026-10-13 |
| 166.204.0.0/20 | Valid | ARIN | 2026-10-13 |
| 166.204.16.0/20 | Valid | ARIN | 2026-10-13 |
| 166.204.32.0/21 | Valid | ARIN | 2026-10-13 |
| 166.204.40.0/22 | Valid | ARIN | 2026-10-13 |
| 166.204.44.0/22 | Valid | ARIN | 2026-10-13 |
| 166.204.48.0/22 | Valid | ARIN | 2026-10-13 |
| 166.204.52.0/23 | Valid | ARIN | 2026-10-13 |
| 166.204.54.0/24 | Valid | ARIN | 2026-10-13 |
| 166.204.55.0/24 | Valid | ARIN | 2026-10-13 |
| 166.204.56.0/23 | Valid | ARIN | 2026-10-13 |
| 166.204.58.0/24 | Valid | ARIN | 2026-10-13 |
| 166.204.60.0/24 | Valid | ARIN | 2026-10-13 |
| 166.204.61.0/24 | Valid | ARIN | 2026-10-13 |
| 166.204.63.0/24 | Valid | ARIN | 2026-10-13 |
| 166.204.64.0/20 | Valid | ARIN | 2026-10-13 |
| 166.204.80.0/22 | Valid | ARIN | 2026-10-13 |
| 166.204.84.0/22 | Valid | ARIN | 2026-10-13 |
| 166.204.90.0/24 | Valid | ARIN | 2026-10-13 |
| 166.204.94.0/24 | Valid | ARIN | 2026-10-13 |
| 166.204.98.0/24 | Valid | ARIN | 2026-10-13 |
| 166.204.100.0/22 | Valid | ARIN | 2026-10-13 |
| 166.204.104.0/22 | Valid | ARIN | 2026-10-13 |
| 166.204.108.0/22 | Valid | ARIN | 2026-10-13 |
| 166.204.112.0/20 | Valid | ARIN | 2026-10-13 |
| 166.212.0.0/15 | Valid | ARIN | 2026-10-13 |
| 166.212.0.0/16 | Valid | ARIN | 2026-10-13 |
| 166.213.0.0/16 | Valid | ARIN | 2026-10-13 |
| 166.213.6.0/24 | Valid | ARIN | 2026-10-13 |
| 166.213.126.0/24 | Valid | ARIN | 2026-10-13 |
| 166.213.158.0/24 | Valid | ARIN | 2026-10-13 |
| 166.213.163.0/24 | Valid | ARIN | 2026-10-13 |
| 166.214.0.0/16 | Valid | ARIN | 2026-10-13 |
| 166.215.0.0/16 | Valid | ARIN | 2026-10-13 |
| 166.215.0.0/17 | Valid | ARIN | 2026-10-13 |
| 166.215.52.0/22 | Valid | ARIN | 2026-10-13 |
| 166.215.56.0/24 | Valid | ARIN | 2026-10-13 |
| 166.215.128.0/17 | Valid | ARIN | 2026-10-13 |
| 166.215.152.0/24 | Valid | ARIN | 2026-10-13 |
| 166.215.168.0/23 | Valid | ARIN | 2026-10-13 |
| 166.215.172.0/23 | Valid | ARIN | 2026-10-13 |
| 166.215.200.0/21 | Valid | ARIN | 2026-10-13 |
| 166.215.212.0/23 | Valid | ARIN | 2026-10-13 |
| 166.216.0.0/17 | Valid | ARIN | 2026-10-13 |
| 166.216.128.0/23 | Valid | ARIN | 2026-10-13 |
| 166.216.131.0/24 | Valid | ARIN | 2026-10-13 |
| 166.216.133.0/24 | Valid | ARIN | 2026-10-13 |
| 166.216.136.0/24 | Valid | - | 2026-10-13 |
| 166.216.137.0/24 | Valid | - | 2026-10-13 |
| 166.216.138.0/24 | Valid | - | 2026-10-13 |
| 166.216.139.0/24 | Valid | - | 2026-10-13 |
| 166.216.146.0/24 | Valid | - | 2026-10-13 |
| 166.216.147.0/24 | Valid | - | 2026-10-13 |
| 166.216.148.0/24 | Valid | - | 2026-10-13 |
| 166.216.149.0/24 | Valid | - | 2026-10-13 |
| 166.216.150.0/24 | Valid | - | 2026-10-13 |
| 166.216.151.0/24 | Valid | - | 2026-10-13 |
| 166.216.152.0/24 | Valid | - | 2026-10-13 |
| 166.216.153.0/24 | Valid | - | 2026-10-13 |
| 166.216.154.0/24 | Valid | - | 2026-10-13 |
| 166.216.155.0/24 | Valid | - | 2026-10-13 |