Data as of Nov 4, 2026
166.216.136.0/22
No anonymizer space · no proxy exits in 30 daysAT&T Enterprises, LLC
Announced by
Type
Mobile
Recent change
New origin Aug 2026
its first announcement on record
Announcements
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 166.216.136.0/24 since Mar 2013 | AS20057 | Mobile | AT&T Enterprises, LLC | |
| 166.216.137.0/24 since Mar 2013 | AS20057 | Mobile | AT&T Enterprises, LLC | |
| 166.216.138.0/24 since Sep 2012 | AS20057 | Mobile | AT&T Enterprises, LLC | |
| 166.216.139.0/24 since Jul 2014 | AS20057 | Mobile | AT&T Enterprises, LLC |
Network & registry
Announced by
Covering announcement 166.216.0.0/14
- Prefix
- 166.216.0.0/14
- Announced by
- AS7018 AT&T Enterprises, LLC
- Type
- Residential
- Proxy exits
- 300
- Always-on exits
- 1
- RPKI
- RPKI valid
- Netname
- AEL-360
- Registrant
- AT&T Enterprises, LLC
- RIR
- ARIN
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 166.216.0.0/14
166.216.0.0/14
Routing history
- Pattern
- Stable
- First seen
- Aug 2026
- Current origin since
- Aug 2026 · 2 mo
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 166.216.0.0/14 | AS7018 | /14 | ARIN | RPKI valid |
IRR
Route objects on 166.216.0.0/14
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS7018 | ARIN | AT&T Enterprises, LLC | MNT-AEL-360 | Aug 26, 2026 |
Whois
Registration for this announcement
- Range
- 166.
212. 0. 0 - 166. 220. 255. 255 - 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-166-212-0-0-1
- 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
- abuse@
att. net - Name
- abuse
- Phone
- +1-919-319-8167
- Handle
- ABUSE7-ARIN