Data as of Nov 11, 2026
12.0.231.0/24
No anonymizer space · no proxy exits in 30 daysAT&T Enterprises, LLC
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 12.0.0.0/9 | AS7018 | Residential | 8,119 301 always on | AT&T Enterprises, LLC | |
| 12.0.0.0/8 | AS7018 | Residential | 13,428 538 always on | AT&T Enterprises, LLC |
Registrations in this block
The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 12.0.0.0/8 | 16,777,216 | ATT | AT&T Enterprises, LLC (AEL-360) · US | Direct Allocation | Aug 23, 1983 | abuse@ |
| └ 12.0.224.0/21 | 2,048 | ATTWORLD-MIS-0-224 | AT&T Services, Inc. (ATTW) · US | Reallocated | Feb 17, 2011 | — |
| └ 12.0.224.0/21 | 2,048 | ATT-MSS-NET-12-0-224-0 | Tcorp-FA-Product to Product (TTP-43) · US | Reassigned | May 24, 2013 | — |
Network & registry
IPv4 market
Holder
- Organization
- AT&T Enterprises, LLC
- Handle
- AEL-360
- Range
- 12.
0. 0. 0/ 8 - Registration type
- Direct Allocation
- Record created
- Aug 23, 1983
- Legacy
- yes
- Reallocated to
- AT&T Services, Inc. (ATTW)
- Reallocated range
- 12.
0. 224. 0/ 21 - Reallocated
- Feb 17, 2011
Origin network
AS2386
US
- Name
- AT&T Enterprises, LLC
- Type
- Internet provider
- Registered
- Feb 3, 1993
- Domain
- att.com
- Website
- qsun.att.com
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Nov 2013
- Current origin since
- Aug 2016 · 10 yr
- Origin networks
- 2
- Last change of origin
- Aug 2016
Recorded history
History
- Handoffs
- 1
Whois
Registration for this announcement
- Range
- 12.
0. 224. 0/ 21 - Netname
- ATT-MSS-NET-12-0-224-0
- Registrant
- Tcorp-FA-Product to Product
- Organization
- Tcorp-FA-Product to Product (TTP-43)
- Org address
- 2021 SUFFOLK RD, FINKSBURG, MD, 20024
- Org country
- US
- Type
- Reassigned
- Handle
- NET-12-0-224-0-2
- Parent
- NET-12-0-224-0-1
- Created
- May 24, 2013
- 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