Data as of Nov 4, 2026
Autonomous system
AS3555
AT&T Technical Services Company, Inc.
Announces 3,840 addresses in 12 prefixes. None of it is anonymizer space.
Type
Business
US
Announced prefixes
| Prefix | Type | Holder | RPKI |
|---|---|---|---|
| 192.31.9.0/24 since May 2005 | Business | ||
| 192.246.37.0/24 since Mar 2009 | Business | Cogent Communications, LLC | |
| 198.17.99.0/24 since May 2005 | Business | ||
| 198.22.152.0/24 since May 2005 | Business | ||
| 198.137.234.0/23 since May 2005 | Business | ||
| 199.74.244.0/24 since May 2005 | Business | ||
| 199.79.216.0/24 since May 2005 | Business | ||
| 199.89.132.0/23 since May 2005 | Business | ||
| 199.89.158.0/23 since May 2005 | Business | ||
| 199.89.160.0/24 since May 2005 | Business | ||
| 204.89.153.0/24 since May 2005 | Business | ||
| 204.89.154.0/24 since May 2005 | Business |
Network & history
Profile
- Registered
- Apr 15, 1994
- Domain
- att.com
- Industry
- Internet Service Provider (ISP)
Routing patterns
How its announcements have moved
Arrivals