Data as of Nov 14, 2026

12.37.59.0/24

1 residential-proxy exit · 30 days

AS21861 · space held by AT&T Enterprises, LLC

Announcement

this exact prefix

No RPKI

Announced by

AS21861

Type

Unknown

Risk

0 / 100 · Low

Residential-proxy exits

Proxy exits

0.39% of its addresses · 30 days

Providers

selling exits here

Oct 15, 2026 – Nov 13, 2026

Exits seen per day

1 observation

Proxy providers listing exits

EnigmaProxy

Announcements

Less specific

Covering announcements

Prefix	Origin	Type	Proxy exits	Holder	RPKI
12.0.0.0/9	AS7018	Residential	8,106 298 always on	AT&T Enterprises, LLC
12.0.0.0/8	AS7018	Residential	13,500 547 always on	AT&T Enterprises, LLC

Registrations in this block

The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.

Range	Addresses	Netname	Holder	Type	Created	Abuse contact
12.0.0.0/8	16,777,216	ATT	AT&T Enterprises, LLC (AEL-360) · US	Direct Allocation	Aug 23, 1983	abuse@att.net
└ 12.37.59.0/24	256	FOSSIL740-59	FOSSIL (FOSSIL) · US	Reassigned	Sep 27, 2001	—

Network & registry

Announcement Routing history Whois & abuse

Routing timeline

Covering aggregate above, the prefix's own history below

Summary

Routing history

Pattern: Stable
First seen: May 2005
Current origin since: May 2005 · 22 yr
Origin networks: 1