AS19957
AT&T Enterprises, LLC
USUnknown2026-08-22
Announced prefixes 42
12.204.192.0/2012.204.201.0/2412.204.206.0/2412.204.208.0/2012.204.208.0/2412.204.209.0/2412.204.216.0/2164.79.176.0/2166.4.0.0/1666.4.8.0/2366.4.9.0/2466.4.14.0/2366.4.16.0/2366.4.18.0/2366.4.18.0/2466.4.19.0/2466.4.27.0/2466.4.28.0/2266.4.32.0/2366.4.38.0/2466.4.40.0/2466.4.60.0/2366.4.78.0/2466.4.81.0/2466.4.124.0/2466.4.126.0/2470.150.21.0/2470.150.247.0/2472.158.184.0/2472.159.76.0/24170.141.56.0/23170.141.60.0/23170.142.0.0/16170.143.0.0/16198.146.0.0/16206.23.0.0/16208.63.128.0/20208.63.128.0/24208.63.129.0/24208.182.0.0/16208.182.101.0/24208.182.124.0/24Snapshot history
| Date | Name | Country | Class | Prefixes |
|---|---|---|---|---|
| 2026-11-11 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-11-10 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-11-09 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-11-08 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-11-07 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-11-06 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-11-05 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-11-04 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-11-03 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-11-02 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-11-01 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-10-31 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-10-30 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-10-29 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-10-28 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-10-27 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-10-26 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-10-25 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-10-24 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-10-23 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-10-22 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-10-21 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-10-20 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-10-19 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-10-18 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-10-17 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-10-16 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-10-15 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-10-14 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-10-13 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-10-12 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-10-11 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-10-10 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-10-09 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-10-08 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-10-07 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-10-06 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-10-05 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-10-04 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-10-03 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-10-02 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-10-01 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-09-30 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-09-29 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-09-28 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-09-27 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-09-26 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-09-25 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-09-24 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-09-23 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-09-22 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-09-21 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-09-20 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-09-19 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-09-18 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-09-17 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-09-16 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-09-15 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-09-14 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-09-13 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-09-12 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-09-11 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-09-10 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-09-09 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-09-08 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-09-07 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-09-06 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-09-05 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-09-04 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-09-03 | AT&T Enterprises, LLC | US | Unknown | 54 |
| 2026-09-02 | AT&T Enterprises, LLC | US | Unknown | 45 |
| 2026-09-01 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-08-31 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-08-30 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-08-29 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-08-28 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-08-27 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-08-26 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-08-25 | AT&T Enterprises, LLC | US | Unknown | 41 |
| 2026-08-24 | AT&T Enterprises, LLC | US | Unknown | 41 |
| 2026-08-23 | AT&T Enterprises, LLC | US | Unknown | 41 |
| 2026-08-22 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-08-21 | AT&T Enterprises, LLC | US | Unknown | 41 |
| 2026-08-20 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-08-19 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-08-18 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-08-17 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-08-16 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-08-15 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-08-14 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-08-13 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-08-12 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-08-11 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-08-10 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-08-09 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-08-08 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-08-07 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-08-06 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-08-05 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-08-04 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-08-03 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-08-02 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-08-01 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-07-31 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-07-30 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-07-29 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-07-28 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-07-27 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-07-26 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-07-25 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-07-24 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-07-23 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-07-22 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-07-21 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-07-20 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-07-19 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-07-18 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-07-17 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-07-16 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-07-15 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-07-14 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-07-13 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-07-12 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-07-11 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-07-10 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-07-09 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-07-08 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-07-07 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-07-06 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-07-05 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-07-04 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-07-03 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-07-02 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-07-01 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-06-30 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-06-29 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-06-28 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-06-27 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-06-26 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-06-25 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-06-24 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-06-23 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-06-22 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-06-21 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-06-20 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-06-19 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-06-18 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-06-17 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-06-16 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-06-15 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-06-14 | AT&T Enterprises, LLC | US | Unknown | 42 |
| 2026-06-13 | AT&T Enterprises, LLC | US | Unknown | 42 |
IP-block changes
Open full filtered history →| Observed | Block | Action | Previous origins | New origins |
|---|---|---|---|---|
| 2026-09-03 | 12.165.35.0/24 | Acquired | — | AS19957 |
| 2026-09-03 | 12.230.239.0/24 | Acquired | — | AS19957 |
| 2026-09-03 | 65.82.99.0/24 | Acquired | — | AS19957 |
| 2026-09-03 | 68.156.26.0/23 | Acquired | — | AS19957 |
| 2026-09-03 | 70.150.248.0/21 | Acquired | — | AS19957 |
| 2026-09-03 | 70.158.144.0/20 | Acquired | — | AS19957 |
| 2026-09-03 | 74.252.160.0/20 | Acquired | — | AS19957 |
| 2026-09-03 | 74.254.176.0/22 | Acquired | — | AS19957 |
| 2026-09-03 | 74.254.180.0/24 | Acquired | — | AS19957 |
| 2026-09-02 | 68.156.24.0/21 | Acquired | — | AS19957 |
| 2026-09-02 | 68.156.24.0/23 | Acquired | — | AS19957 |
| 2026-09-02 | 68.156.28.0/23 | Acquired | — | AS19957 |
| 2026-08-26 | 66.4.32.0/23 | Acquired | — | AS19957 |
| 2026-08-23 | 66.4.32.0/23 | Released | AS19957 | — |
| 2026-08-22 | 66.4.19.0/24 | Acquired | — | AS19957 |
| 2026-08-21 | 66.4.19.0/24 | Released | AS19957 | — |
Changes page 1