AS4473
AT&T Enterprises, LLC
USUnknown2026-10-29
Announced prefixes 25
12.17.241.0/2412.29.116.0/2412.29.117.0/2412.29.118.0/2412.29.119.0/2412.71.77.0/2412.97.148.0/2412.226.120.0/2412.226.121.0/2412.226.122.0/2412.226.123.0/24198.183.168.0/24206.197.1.0/24207.140.216.0/23207.140.220.0/22209.37.104.0/24209.37.105.0/24209.37.106.0/24209.37.107.0/24209.65.8.0/24209.65.9.0/24209.65.160.0/24209.65.161.0/24209.65.163.0/24209.65.164.0/24Snapshot history
| Date | Name | Country | Class | Prefixes |
|---|---|---|---|---|
| 2026-11-11 | AT&T Enterprises, LLC | US | Unknown | 31 |
| 2026-11-10 | AT&T Enterprises, LLC | US | Unknown | 31 |
| 2026-11-09 | AT&T Enterprises, LLC | US | Unknown | 31 |
| 2026-11-08 | AT&T Enterprises, LLC | US | Unknown | 31 |
| 2026-11-07 | AT&T Enterprises, LLC | US | Unknown | 31 |
| 2026-11-06 | AT&T Enterprises, LLC | US | Unknown | 31 |
| 2026-11-05 | AT&T Enterprises, LLC | US | Unknown | 31 |
| 2026-11-04 | AT&T Enterprises, LLC | US | Unknown | 31 |
| 2026-11-03 | AT&T Enterprises, LLC | US | Unknown | 31 |
| 2026-11-02 | AT&T Enterprises, LLC | US | Unknown | 31 |
| 2026-11-01 | AT&T Enterprises, LLC | US | Unknown | 31 |
| 2026-10-31 | AT&T Enterprises, LLC | US | Unknown | 31 |
| 2026-10-30 | AT&T Enterprises, LLC | US | Unknown | 25 |
| 2026-10-29 | AT&T Enterprises, LLC | US | Unknown | 25 |
| 2026-10-28 | AT&T Enterprises, LLC | US | Unknown | 31 |
| 2026-10-27 | AT&T Enterprises, LLC | US | Unknown | 31 |
| 2026-10-26 | AT&T Enterprises, LLC | US | Unknown | 31 |
| 2026-10-25 | AT&T Enterprises, LLC | US | Unknown | 31 |
| 2026-10-24 | AT&T Enterprises, LLC | US | Unknown | 31 |
| 2026-10-23 | AT&T Enterprises, LLC | US | Unknown | 31 |
| 2026-10-22 | AT&T Enterprises, LLC | US | Unknown | 31 |
| 2026-10-21 | AT&T Enterprises, LLC | US | Unknown | 31 |
| 2026-10-20 | AT&T Enterprises, LLC | US | Unknown | 31 |
| 2026-10-19 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-10-18 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-10-17 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-10-16 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-10-15 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-10-14 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-10-13 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-10-12 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-10-11 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-10-10 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-10-09 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-10-08 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-10-07 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-10-06 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-10-05 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-10-04 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-10-03 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-10-02 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-10-01 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-09-30 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-09-29 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-09-28 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-09-27 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-09-26 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-09-25 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-09-24 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-09-23 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-09-22 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-09-21 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-09-20 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-09-19 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-09-18 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-09-17 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-09-16 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-09-15 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-09-14 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-09-13 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-09-12 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-09-11 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-09-10 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-09-09 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-09-08 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-09-07 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-09-06 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-09-05 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-09-04 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-09-03 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-09-02 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-09-01 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-08-31 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-08-30 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-08-29 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-08-28 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-08-27 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-08-26 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-08-25 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-08-24 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-08-23 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-08-22 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-08-21 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-08-20 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-08-19 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-08-18 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-08-17 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-08-16 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-08-15 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-08-14 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-08-13 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-08-12 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-08-11 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-08-10 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-08-09 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-08-08 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-08-07 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-08-06 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-08-05 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-08-04 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-08-03 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-08-02 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-08-01 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-07-31 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-07-30 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-07-29 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-07-28 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-07-27 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-07-26 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-07-25 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-07-24 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-07-23 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-07-22 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-07-21 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-07-20 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-07-19 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-07-18 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-07-17 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-07-16 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-07-15 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-07-14 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-07-13 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-07-12 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-07-11 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-07-10 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-07-09 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-07-08 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-07-07 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-07-06 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-07-05 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-07-04 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-07-03 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-07-02 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-07-01 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-06-30 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-06-29 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-06-28 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-06-27 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-06-26 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-06-25 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-06-24 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-06-23 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-06-22 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-06-21 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-06-20 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-06-19 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-06-18 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-06-17 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-06-16 | AT&T Enterprises, LLC | US | Unknown | 32 |
| 2026-06-15 | AT&T Enterprises, LLC | US | Unknown | 33 |
| 2026-06-14 | AT&T Enterprises, LLC | US | Unknown | 33 |
| 2026-06-13 | AT&T Enterprises, LLC | US | Unknown | 33 |
IP-block changes
Open full filtered history →| Observed | Block | Action | Previous origins | New origins |
|---|---|---|---|---|
| 2026-10-31 | 12.96.45.0/24 | Acquired | AS4186 | AS4473 |
| 2026-10-31 | 12.96.46.0/24 | Acquired | AS4186 | AS4473 |
| 2026-10-31 | 12.105.210.0/24 | Acquired | AS4186 | AS4473 |
| 2026-10-31 | 151.107.0.0/20 | Acquired | AS4186 | AS4473 |
| 2026-10-31 | 209.37.109.0/24 | Acquired | AS4186 | AS4473 |
| 2026-10-31 | 209.37.110.0/24 | Acquired | AS4186 | AS4473 |
| 2026-10-29 | 12.96.45.0/24 | Released | AS4473 | AS4186 |
| 2026-10-29 | 12.96.46.0/24 | Released | AS4473 | AS4186 |
| 2026-10-29 | 12.105.210.0/24 | Released | AS4473 | AS4186 |
| 2026-10-29 | 151.107.0.0/20 | Released | AS4473 | AS4186 |
| 2026-10-29 | 209.37.109.0/24 | Released | AS4473 | AS4186 |
| 2026-10-29 | 209.37.110.0/24 | Released | AS4473 | AS4186 |
| 2026-10-20 | 165.13.0.0/16 | Released | AS4473 | — |
| 2026-06-16 | 206.118.0.0/16 | Released | AS4473 | — |
Changes page 1