Data as of Nov 9, 2026
66.140.111.0/24
No anonymizer space · no proxy exits in 30 daysTexas Tech University · space held by AT&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 | 2,588 72 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@ |
| └ 66.140.111.0/24 | 256 | SBC066140111000030728 | Texas Tech University (C00635784) · US | Reassigned | Jul 28, 2003 | 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
AS10421
US
- Name
- Texas Tech University
- Type
- Education
- Registered
- Jul 31, 1997
- Domain
- ttu.edu
- Industry
- Colleges, Universities, and Professional Schools
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- May 2012
- Current origin since
- May 2012 · 15 yr
- Origin networks
- 1
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS10421 | RADB | Texas Tech University | MAINT-AS16905 | Nov 13, 2023 |
Whois
Registration for this announcement
- Range
- 66.
140. 111. 0/ 24 - Netname
- SBC066140111000030728
- Registrant
- Texas Tech University
- Organization
- Texas Tech University (C00635784)
- Type
- Reassigned
- Handle
- NET-66-140-111-0-1
- Parent
- NET-66-136-0-0-1
- Created
- Jul 28, 2003
- 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