Data as of Nov 12, 2026

137.200.0.0/19

No anonymizer space · no proxy exits in 30 days

Social Security Administration

Announcement
this exact prefix
No RPKI
Announced by
Type
Business

Announcements

Less specific

Covering announcements

PrefixOriginTypeHolderRPKI
137.200.0.0/18
since Jul 2023
AS11985BusinessSocial Security Administration
More specific

Announcements inside

PrefixOriginTypeHolderRPKI
137.200.0.0/20
since Feb 2016
AS11985BusinessSocial Security Administration
137.200.16.0/20
since Feb 2020
AS11985BusinessSocial Security Administration

Network & registry

Routing timeline

Covering aggregate above, the prefix's own history below

Summary

Routing history

Pattern
Stable
First seen
Feb 2016
Current origin since
Feb 2016 · 11 yr
Origin networks
1