Data as of Nov 4, 2026
166.204.0.0/17
1 residential-proxy exit · 30 daysAT&T Enterprises, LLC
Announcement
this exact prefix
RPKI valid
Announced by
Type
Mobile
Recent change
New origin Aug 2026
from AS20057 AT&T Enterprises, LLC
Residential-proxy exits
Proxy exits
1
<0.01% of its addresses · 30 days
Spread
1 of 128
/24s with at least one exit
Providers
2
selling exits here
Oct 5, 2026 – Nov 3, 2026
Exits seen per day
2 observations
Proxy providers listing exits
- FastProxy
- RainProxy
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 |
|---|---|---|---|---|
| 166.204.0.0/20 since Aug 2019 | AS20057 | Mobile | AT&T Enterprises, LLC | |
| 166.204.16.0/20 since Aug 2019 | AS20057 | Mobile | AT&T Enterprises, LLC | |
| 166.204.32.0/21 since Jan 2020 | AS20057 | Mobile | AT&T Enterprises, LLC | |
| 166.204.40.0/22 since May 2020 | AS20057 | Mobile | AT&T Enterprises, LLC | |
| 166.204.44.0/22 since May 2020 | AS20057 | Mobile | AT&T Enterprises, LLC | |
| 166.204.48.0/22 since Apr 2020 | AS20057 | Mobile | AT&T Enterprises, LLC | |
| 166.204.52.0/23 since Dec 2019 | AS20057 | Mobile | AT&T Enterprises, LLC | |
| 166.204.54.0/24 since Nov 2019 | AS20057 | Mobile | AT&T Enterprises, LLC | |
| 166.204.55.0/24 since Oct 2019 | AS20057 | Mobile | AT&T Enterprises, LLC | |
| 166.204.56.0/23 since Aug 2019 | AS20057 | Mobile | AT&T Enterprises, LLC | |
| 166.204.58.0/24 since Aug 2019 | AS20057 | Mobile | AT&T Enterprises, LLC | |
| 166.204.60.0/24 since Nov 2019 | AS20057 | Mobile | AT&T Enterprises, LLC | |
| 166.204.61.0/24 since Jun 2019 | AS20057 | Mobile | AT&T Enterprises, LLC | |
| 166.204.63.0/24 since Jun 2019 | AS20057 | Mobile | AT&T Enterprises, LLC | |
| 166.204.64.0/20 since Jul 2019 | AS20057 | Mobile | AT&T Enterprises, LLC | |
| 166.204.80.0/22 since Nov 2019 | AS20057 | Mobile | AT&T Enterprises, LLC | |
| 166.204.84.0/22 since Feb 2020 | AS20057 | Mobile | AT&T Enterprises, LLC | |
| 166.204.90.0/24 since Jan 2020 | AS20057 | Mobile | AT&T Enterprises, LLC | |
| 166.204.94.0/24 since Jul 2019 | AS20057 | Mobile | AT&T Enterprises, LLC | |
| 166.204.98.0/24 since Jan 2020 | AS20057 | Mobile | AT&T Enterprises, LLC | |
| 166.204.100.0/22 since Dec 2019 | AS20057 | Mobile | AT&T Enterprises, LLC | |
| 166.204.104.0/22 since Jan 2020 | AS20057 | Mobile | AT&T Enterprises, LLC | |
| 166.204.108.0/22 since Feb 2020 | AS20057 | Mobile | AT&T Enterprises, LLC | |
| 166.204.112.0/20 since Dec 2019 | 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
- Rotating
- First seen
- Jan 2016
- 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.
183. 0. 0 - 166. 209. 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-166-183-0-0-1
- 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