Data as of Nov 3, 2026
166.147.64.0/18
No anonymizer space · no proxy exits in 30 daysAT&T Enterprises, LLC
Announcement
this exact prefix
RPKI valid
Announced by
Type
Mobile
Recent change
New origin Aug 2026
from AS3448 AT&T Enterprises, LLC, after 20.8 years unannounced
Announcements
Nesting
More-specifics by size
Sized by addresses, colored by each announcement's type. Click a tile with children to zoom in, a leaf to open it.
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 166.147.64.0/20 since Mar 2012 | AS20057 | Mobile | AT&T Enterprises, LLC | |
| 166.147.68.0/24 since Jun 2018 | AS20057 | Mobile | AT&T Enterprises, LLC | |
| 166.147.69.0/24 since Jun 2018 | AS20057 | Mobile | AT&T Enterprises, LLC | |
| 166.147.73.0/24 since Nov 2010 | AS20057 | Mobile | AT&T Enterprises, LLC | |
| 166.147.80.0/20 since Nov 2010 | AS20057 | Mobile | AT&T Enterprises, LLC | |
| 166.147.86.0/24 since Dec 2014 | AS20057 | Mobile | AT&T Enterprises, LLC | |
| 166.147.87.0/24 since Oct 2015 | AS20057 | Mobile | AT&T Enterprises, LLC | |
| 166.147.89.0/24 since Feb 2011 | AS20057 | Mobile | AT&T Enterprises, LLC | |
| 166.147.96.0/20 since Mar 2012 | AS20057 | Mobile | AT&T Enterprises, LLC | |
| 166.147.98.0/24 since Mar 2021 | AS20057 | Mobile | AT&T Enterprises, LLC | |
| 166.147.104.0/24 since Jul 2011 | AS20057 | Mobile | AT&T Enterprises, LLC | |
| 166.147.105.0/24 since Jun 2011 | AS20057 | Mobile | AT&T Enterprises, LLC | |
| 166.147.112.0/20 since Dec 2010 | AS20057 | Mobile | AT&T Enterprises, LLC | |
| 166.147.121.0/24 since Mar 2011 | AS20057 | Mobile | AT&T Enterprises, LLC | |
| 166.147.123.0/24 since Sep 2017 | AS20057 | Mobile | AT&T Enterprises, LLC | |
| 166.147.124.0/24 since Jun 2018 | AS20057 | Mobile | AT&T Enterprises, LLC | |
| 166.147.125.0/24 since Jun 2018 | AS20057 | Mobile | AT&T Enterprises, LLC | |
| 166.147.126.0/24 since Jun 2018 | AS20057 | Mobile | AT&T Enterprises, LLC | |
| 166.147.127.0/24 since Jun 2018 | AS20057 | Mobile | AT&T Enterprises, LLC |
Network & registry
Origin network
AS7018
US
- Name
- AT&T Enterprises, LLC
- Type
- Internet provider
- Registered
- Jul 30, 1996
- Domain
- att.com
- Website
- www.att.com
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Reactivated
- First seen
- May 2005
- Current origin since
- Aug 2026 · 2 mo
- Origin networks
- 2
- Last change of origin
- Aug 2026
Recorded history
History
- Handoffs
- 1
Whois
Registration for this announcement
- Range
- 166.147.64.0/18
- Netname
- AEL-360
- 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-166-147-64-0-1
- Parent
- NET-166-0-0-0-0
- Created
- Apr 1, 2025
- RIR
- ARIN
- Country
- US
- Delegated
- Apr 1, 2025
- Status
- assigned
Report abuse
Abuse contact
- [email protected]
- Name
- abuse
- Phone
- +1-919-319-8167
- Handle
- ABUSE7-ARIN