Data as of Nov 13, 2026
12.
- Proxy activity
- Not seen in 30 days
- Type
- Business
- Risk
- 0 / 100 · Low
- Announced by
- AS7018AT&T Enterprises, LLCatt.comInternet provider
- Announcement
- 12.128.0.0/9No RPKI
- Location
- San Mateo, California, United States
Network & registry
Announced by
Announcement
- Prefix
- 12.128.0.0/9
- Announced by
- AS7018 AT&T Enterprises, LLC
- Type
- Residential
- Proxy exits
- 5,373
- Always-on exits
- 246
- RPKI
- No RPKI
Origin network
AS7018
US
- Name
- AT&T Enterprises, LLC
- Type
- Internet provider
- Registered
- Jul 30, 1996
- Domain
- att.com
- Website
- www.att.com
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 12.128.0.0/9
12.128.0.0/9
Routing history
- First seen
- Before our records
- Origin networks
- 1
IRR
Route objects on 12.128.0.0/9
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS7018 | ARIN | 12/8 upper half | MNT-AEL-360 | Jul 21, 2025 |
Whois
Registration for this address
- Range
- 12.
0. 0. 0/ 8 - Netname
- ATT
- Registrant
- AT&T Enterprises, LLC
- Organization
- AT&T Enterprises, LLC (AEL-360)
- Org address
- 208 S. Akard St., Dallas, TX, 75202
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-12-0-0-0-1
- Parent
- NET-12-0-0-0-0
- Created
- Aug 23, 1983
- Sub-assignment
- 12.
131. 22. 196/ 32 - RIR
- ARIN
- Country
- US
- Delegated
- Aug 23, 1983
- Status
- assigned
Report abuse
Abuse contact
- abuse@
att. net - Name
- abuse
- Phone
- +1-919-319-8167
- Handle
- ABUSE7-ARIN
Geolocation
Location detail
- Country
- United States
- Region
- California
- City
- San Mateo
- Coordinates
- 37.
5630, -122. 3255 - Time zone
- America/Los_Angeles
- Continent
- North America
- GeoNames
- 5392423