Data as of Nov 4, 2026
12.129.26.0/24
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) | 5,173 283 always on | AT&T Enterprises, LLC | |
| 12.0.0.0/8 | AS7018 | Residential | 13,297 724 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 | [email protected] |
| └ 12.129.0.0/18 | 16,384 | ATTENS-SEA1-1 | CERFnet (CERF) · US | Reallocated | Feb 4, 2002 | — |
| └ 12.129.26.0/24 | 256 | ATT-12-129-26-0-24 | CI - Conduent SID-28261 (C09139219) · US | Reassigned | Jan 13, 2023 | — |
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
- CERFnet (CERF)
- Reallocated range
- 12.129.0.0/18
- Reallocated
- Feb 4, 2002
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
- Rotating
- First seen
- Dec 2018
- Current origin since
- Jun 2023 · 3.4 yr
- Origin networks
- 2
- Last change of origin
- Jun 2023
Recorded history
History
- Handoffs
- 1
Whois
Registration for this announcement
- Range
- 12.129.26.0/24
- Netname
- ATT-12-129-26-0-24
- Registrant
- CI - Conduent SID-28261
- Organization
- CI - Conduent SID-28261 (C09139219)
- Type
- Reassigned
- Handle
- NET-12-129-26-0-1
- Parent
- NET-12-129-0-0-1
- Created
- Jan 13, 2023
- RIR
- ARIN
- Country
- US
- Delegated
- Aug 23, 1983
- Status
- assigned
Report abuse
Abuse contact
- [email protected]
- Name
- Network Provisioning
- Phone
- +1-877-789-2877
- Handle
- NETWO10-ARIN