Data as of Nov 6, 2026
166.138.168.0/23
4 residential-proxy exits · 30 daysAT&T Enterprises, LLC
Announcement
this exact prefix
RPKI valid
Announced by
Type
Mobile
Risk
10 / 100 · Low
Shared address
Residential-proxy exits
Proxy exits
4
0.78% of its addresses · 30 days
Spread
2 of 2
/24s with at least one exit
Providers
5
selling exits here
Oct 7, 2026 – Nov 5, 2026
Exits seen per day
7 observations
/24s with the most always-on exits
| /24 | Always-on exits | Proxy exits | |
|---|---|---|---|
| 166.138.168.0/24 | 0 | 3 | |
| 166.138.169.0/24 | 0 | 1 |
Proxy providers listing exits
- Evomi
- GhostConnect
- InfiniteProxies
- LudaxProxy
- NovaProxy
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 166.138.160.0/19 since Sep 2019 | AS20057 | Mobile | 4 | AT&T Enterprises, LLC | |
| 166.138.128.0/17 since Aug 2026 | AS7018 | Residential | 4 | AT&T Enterprises, LLC |
Network & registry
Origin network
AS20057
US
- Name
- AT&T Enterprises, LLC
- Type
- Internet provider
- Registered
- Mar 20, 2001
- Domain
- att.com
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- May 2020
- Current origin since
- May 2020 · 6.5 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 166.138.168.0/23 | AS20057 | /23 | ARIN | RPKI valid |
| 166.138.160.0/19 | AS20057 | /19 | ARIN | Too specific |
| 166.138.128.0/17 | AS7018 | /17 | ARIN | Another network |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS20057 | ARIN | AT&T Enterprises, LLC | MNT-AEL-360 | Sep 1, 2026 |
Whois
Registration for this announcement
- Range
- 166.
128. 0. 0 - 166. 138. 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-166-128-0-0-1
- 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