Data as of Nov 3, 2026
Autonomous system
AS6431
AT&T Enterprises, LLC
Announces 200,192 addresses in 15 prefixes. None of it is anonymizer space.
Type
Business
US
Announced prefixes
| Prefix | Type | Holder | RPKI |
|---|---|---|---|
| 12.106.32.0/23 since Oct 2023 | Business | ||
| 12.106.34.0/24 since Oct 2013 | Business | ||
| 12.106.35.0/24 since Oct 2013 | Business | ||
| 135.197.0.0/16 since Dec 2006 | Business | AT&T Services, Inc. | |
| 135.197.0.0/17 since Oct 2023 | Business | AT&T Services, Inc. | |
| 135.197.128.0/17 since Oct 2023 | Business | AT&T Services, Inc. | |
| 135.205.0.0/16 since May 2005 | Business | AT&T Services, Inc. | |
| 135.205.0.0/17 since Oct 2023 | Business | AT&T Services, Inc. | |
| 135.205.128.0/17 since Oct 2023 | Business | AT&T Services, Inc. | |
| 135.207.0.0/16 since May 2005 | Business | AT&T Services, Inc. | |
| 135.207.0.0/17 since Oct 2023 | Business | AT&T Services, Inc. | |
| 135.207.128.0/17 since Oct 2023 | Business | AT&T Services, Inc. | |
| 192.20.225.0/24 since May 2005 | Business | ||
| 204.178.8.0/21 since Mar 2026 | Business | Verizon Business | |
| 207.76.218.0/24 since Mar 2026 | Business | Verizon Business |
Network & history
Profile
- Registered
- Apr 12, 1996
- Domain
- att.com
- Industry
- Computer and Information Technology
Routing patterns
How its announcements have moved
Arrivals