Data as of Nov 5, 2026
66.143.174.0/24
No anonymizer space · no proxy exits in 30 daysAT&T Enterprises, LLC
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 66.136.0.0/13 since Oct 2013 | AS7018 | Residential | 2,532 63 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 |
|---|---|---|---|---|---|---|
| 66.136.0.0/13 | 524,288 | SBCIS-SIS80 | AT&T Enterprises, LLC (AEL-360) · US | Direct Allocation | Jun 5, 2001 | abuse@ |
| └ 66.143.174.0/24 | 256 | SBC066143174000021121 | SBC Technology Resources (C00420029) · US | Reassigned | Nov 21, 2002 | abuse@ via SBCIS-SIS80 |
A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.
Network & registry
IPv4 market
Holder
- Organization
- AT&T Enterprises, LLC
- Handle
- AEL-360
- Range
- 66.
136. 0. 0/ 13 - Registration type
- Direct Allocation
- Record created
- Jun 5, 2001
Origin network
AS5671
US
- Name
- AT&T Enterprises, LLC
- Type
- Hosting
- Registered
- Aug 10, 1995
- Domain
- att.com
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Aug 2010
- Current origin since
- Aug 2010 · 16 yr
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 66.
143. 174. 0/ 24 - Netname
- SBC066143174000021121
- Registrant
- SBC Technology Resources
- Organization
- SBC Technology Resources (C00420029)
- Type
- Reassigned
- Handle
- NET-66-143-174-0-1
- Parent
- NET-66-136-0-0-1
- Created
- Nov 21, 2002
- RIR
- ARIN
- Country
- US
- Delegated
- Jun 5, 2001
- Status
- assigned
Report abuse
Abuse contact
- abuse@
att. net - Name
- abuse
- Phone
- +1-919-319-8167
- Handle
- ABUSE7-ARIN