Data as of Nov 11, 2026

12.28.131.0/24

No anonymizer space · no proxy exits in 30 days

AT&T Enterprises, LLC

Announcement
this exact prefix
RPKI valid
Announced by
Type
Business
Risk
0 / 100 · Low

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
12.0.0.0/9AS7018Residential8,119
301 always on
AT&T Enterprises, LLC
12.0.0.0/8AS7018Residential13,428
538 always on
AT&T Enterprises, LLC

Network & registry

Routing timeline

Covering aggregate above, the prefix's own history below

Summary

Routing history

Pattern
Stable
First seen
Aug 2023
Current origin since
Aug 2023 · 3.3 yr
Origin networks
1