Data as of Nov 8, 2026

166.137.172.0/22

28 residential-proxy exits · 30 days

AT&T Enterprises, LLC

Announcement

this exact prefix

RPKI valid

Announced by

AS20057

Type

Mobile

Risk

10 / 100 · Low

Shared address

Residential-proxy exits

Proxy exits

2.7% of its addresses · 30 days

Spread

2 of 4

/24s with at least one exit

Providers

selling exits here

Oct 9, 2026 – Nov 7, 2026

Exits seen per day

84 observations

/24s with the most always-on exits

/24	Always-on exits	Proxy exits
166.137.175.0/24	0	27
166.137.172.0/24	0	1

Proxy providers listing exits

AnyIP
BottingTools
Datarama
FastProxy

Announcements

Less specific

Covering announcements

Prefix	Origin	Type	Proxy exits	Holder
166.137.128.0/17 since Apr 2006	AS20057	Mobile	70 1 always on	AT&T Enterprises, LLC
166.137.0.0/16 since Aug 2006	AS20057	Mobile	241 1 always on	AT&T Enterprises, LLC
166.136.0.0/15 since Aug 2026	AS7018	Residential	241 1 always on	AT&T Enterprises, LLC

Network & registry

Announcement Routing history RPKI & IRR Whois & abuse

Origin network

AS20057

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

166.137.172.0/22

Residential-proxy exits

Exits seen per day

/24s with the most always-on exits

Proxy providers listing exits

Announcements

Covering announcements

Network & registry

AS20057

Covering aggregate above, the prefix's own history below

Routing history

Route origin authorizations

Registration for this announcement

Abuse contact

ROA prefix	ASN	Max len	Anchor	Verdict
166.137.0.0/16	AS20057	/24	ARIN	RPKI valid
166.136.0.0/15	AS7018	/15	ARIN	Another network