Data as of Nov 13, 2026
12.183.71.0/24
No anonymizer space · no proxy exits in 30 daysAT&T Enterprises, LLC
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Leased from | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|---|
| 12.128.0.0/9 | AS7018 | Residential | IP broker Rackdog (part) | 5,373 246 always on | AT&T Enterprises, LLC | |
| 12.0.0.0/8 | AS7018 | Residential | 13,497 535 always on | AT&T Enterprises, LLC |
Network & registry
Origin network
AS4185
US
- Name
- AT&T Enterprises, LLC
- Type
- Internet provider
- Registered
- Dec 16, 1994
- Domain
- att.com
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
latest 12 of 27 stints
Summary
Routing history
- Pattern
- Stable
- First seen
- Jun 2009
- Current origin since
- Oct 2009 · 17 yr
- Origin networks
- 3
- Last change of origin
- Dec 2011
Recorded history
History
- Stints on record
- 27
- Handoffs
- 2
Whois
Registration for this announcement
- 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
- 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