AS20057 Announced Prefixes - page 12
1,640 prefixes originated in BGP by AS20057 AT&T Enterprises.
Prefixes 1,101-1,200
| Prefix | RPKI | IRR | Last Seen |
|---|---|---|---|
| 166.170.15.0/24 | Valid | ARIN | 2026-10-13 |
| 166.170.16.0/24 | Valid | ARIN | 2026-10-13 |
| 166.170.20.0/22 | Valid | ARIN | 2026-10-13 |
| 166.170.24.0/23 | Valid | ARIN | 2026-10-13 |
| 166.170.28.0/22 | Valid | ARIN | 2026-10-13 |
| 166.170.32.0/22 | Valid | ARIN | 2026-10-13 |
| 166.170.36.0/22 | Valid | ARIN | 2026-10-13 |
| 166.170.40.0/22 | Valid | ARIN | 2026-10-13 |
| 166.170.44.0/22 | Valid | ARIN | 2026-10-13 |
| 166.170.48.0/22 | Valid | ARIN | 2026-10-13 |
| 166.170.52.0/22 | Valid | ARIN | 2026-10-13 |
| 166.170.56.0/22 | Valid | ARIN | 2026-10-13 |
| 166.170.64.0/18 | Valid | ARIN | 2026-10-13 |
| 166.170.128.0/18 | Valid | ARIN | 2026-10-13 |
| 166.170.136.0/21 | Valid | ARIN | 2026-10-13 |
| 166.170.144.0/21 | Valid | ARIN | 2026-10-13 |
| 166.170.152.0/21 | Valid | ARIN | 2026-10-13 |
| 166.170.160.0/21 | Valid | ARIN | 2026-10-13 |
| 166.170.168.0/21 | Valid | ARIN | 2026-10-13 |
| 166.170.176.0/21 | Valid | ARIN | 2026-10-13 |
| 166.171.0.0/18 | Valid | ARIN | 2026-10-13 |
| 166.171.56.0/22 | Valid | ARIN | 2026-10-13 |
| 166.171.64.0/18 | Valid | ARIN | 2026-10-13 |
| 166.171.120.0/22 | Valid | ARIN | 2026-10-13 |
| 166.171.128.0/18 | Valid | ARIN | 2026-10-13 |
| 166.171.184.0/22 | Valid | ARIN | 2026-10-13 |
| 166.171.192.0/18 | Valid | ARIN | 2026-10-13 |
| 166.171.248.0/22 | Valid | ARIN | 2026-10-13 |
| 166.172.0.0/18 | Valid | ARIN | 2026-10-13 |
| 166.172.56.0/22 | Valid | ARIN | 2026-10-13 |
| 166.172.60.0/22 | Valid | ARIN | 2026-10-13 |
| 166.172.64.0/18 | Valid | ARIN | 2026-10-13 |
| 166.172.120.0/22 | Valid | ARIN | 2026-10-13 |
| 166.172.128.0/18 | Valid | ARIN | 2026-10-13 |
| 166.172.184.0/22 | Valid | ARIN | 2026-10-13 |
| 166.172.188.0/22 | Valid | ARIN | 2026-10-13 |
| 166.172.192.0/18 | Valid | ARIN | 2026-10-13 |
| 166.173.0.0/18 | Valid | ARIN | 2026-10-13 |
| 166.173.56.0/22 | Valid | ARIN | 2026-10-13 |
| 166.173.60.0/22 | Valid | ARIN | 2026-10-13 |
| 166.173.64.0/18 | Valid | ARIN | 2026-10-13 |
| 166.173.128.0/18 | Valid | ARIN | 2026-10-13 |
| 166.173.184.0/22 | Valid | ARIN | 2026-10-13 |
| 166.173.192.0/18 | Valid | ARIN | 2026-10-13 |
| 166.173.248.0/22 | Valid | ARIN | 2026-10-13 |
| 166.175.0.0/18 | Valid | ARIN | 2026-10-13 |
| 166.175.56.0/22 | Valid | ARIN | 2026-10-13 |
| 166.175.60.0/22 | Valid | ARIN | 2026-10-13 |
| 166.175.64.0/18 | Valid | ARIN | 2026-10-13 |
| 166.175.128.0/18 | Valid | ARIN | 2026-10-13 |
| 166.175.184.0/22 | Valid | ARIN | 2026-10-13 |
| 166.175.188.0/22 | Valid | ARIN | 2026-10-13 |
| 166.175.192.0/18 | Valid | ARIN | 2026-10-13 |
| 166.176.0.0/18 | Valid | ARIN | 2026-10-13 |
| 166.176.56.0/22 | Valid | ARIN | 2026-10-13 |
| 166.176.64.0/18 | Valid | ARIN | 2026-10-13 |
| 166.176.120.0/22 | Valid | ARIN | 2026-10-13 |
| 166.176.128.0/18 | Valid | ARIN | 2026-10-13 |
| 166.176.184.0/22 | Valid | ARIN | 2026-10-13 |
| 166.176.192.0/18 | Valid | ARIN | 2026-10-13 |
| 166.176.248.0/22 | Valid | ARIN | 2026-10-13 |
| 166.177.0.0/18 | Valid | ARIN | 2026-10-13 |
| 166.177.56.0/22 | Valid | ARIN | 2026-10-13 |
| 166.177.64.0/18 | Valid | ARIN | 2026-10-13 |
| 166.177.120.0/22 | Valid | ARIN | 2026-10-13 |
| 166.177.128.0/18 | Valid | ARIN | 2026-10-13 |
| 166.177.184.0/22 | Valid | ARIN | 2026-10-13 |
| 166.177.192.0/18 | Valid | ARIN | 2026-10-13 |
| 166.177.248.0/22 | Valid | ARIN | 2026-10-13 |
| 166.183.0.0/16 | Invalid | - | 2026-10-13 |
| 166.184.0.0/15 | Valid | ARIN | 2026-10-13 |
| 166.184.0.0/16 | Valid | - | 2026-10-13 |
| 166.184.0.0/17 | Valid | - | 2026-10-13 |
| 166.184.2.0/24 | Valid | - | 2026-10-13 |
| 166.184.4.0/22 | Valid | - | 2026-10-13 |
| 166.184.10.0/23 | Valid | - | 2026-10-13 |
| 166.184.12.0/22 | Valid | - | 2026-10-13 |
| 166.184.17.0/24 | Valid | - | 2026-10-13 |
| 166.184.18.0/23 | Valid | - | 2026-10-13 |
| 166.184.23.0/24 | Valid | - | 2026-10-13 |
| 166.184.24.0/21 | Valid | - | 2026-10-13 |
| 166.184.32.0/22 | Valid | - | 2026-10-13 |
| 166.184.36.0/24 | Valid | - | 2026-10-13 |
| 166.184.37.0/24 | Valid | - | 2026-10-13 |
| 166.184.38.0/24 | Valid | - | 2026-10-13 |
| 166.184.39.0/24 | Valid | - | 2026-10-13 |
| 166.184.40.0/22 | Valid | - | 2026-10-13 |
| 166.184.44.0/22 | Valid | - | 2026-10-13 |
| 166.184.48.0/22 | Valid | - | 2026-10-13 |
| 166.184.54.0/24 | Valid | - | 2026-10-13 |
| 166.184.55.0/24 | Valid | - | 2026-10-13 |
| 166.184.59.0/24 | Valid | - | 2026-10-13 |
| 166.184.60.0/24 | Valid | - | 2026-10-13 |
| 166.184.61.0/24 | Valid | - | 2026-10-13 |
| 166.184.62.0/24 | Valid | - | 2026-10-13 |
| 166.184.63.0/24 | Valid | - | 2026-10-13 |
| 166.184.64.0/20 | Valid | - | 2026-10-13 |
| 166.184.80.0/22 | Valid | - | 2026-10-13 |
| 166.184.84.0/22 | Valid | - | 2026-10-13 |
| 166.184.88.0/23 | Valid | - | 2026-10-13 |