Data as of Nov 12, 2026

51.200.0.0/16

8 residential-proxy exits · 30 days

Amazon.com, Inc. · space held by A100 ROW Inc

Announcement

this exact prefix

RPKI valid

Announced by

AS16509

Type

Hosting

Risk

50 / 100 · Medium

Recent change

New origin May 2026

its first announcement on record

Residential-proxy exits

Proxy exits

0.01% of its addresses · 30 days

Oct 13, 2026 – Nov 11, 2026

Exits seen per day

23 observations

Announcements

Less specific

Covering announcements

Prefix	Origin	Type	Holder	RPKI
51.200.0.0/15 since May 2026	AS16509	Hosting	A100 ROW Inc

Network & registry

Announcement Routing history RPKI & IRR Whois & abuse

Routing timeline

Covering aggregate above, the prefix's own history below

Summary

Routing history

Pattern: Stable
First seen: May 2026
Current origin since: May 2026 · 6 mo
Origin networks: 1

RPKI

Route origin authorizations

ROA prefix	ASN	Max len	Anchor	Verdict
51.200.0.0/16	AS16509	/16	RIPE	RPKI valid
51.200.0.0/15	AS14618	/15	RIPE	Another network
51.200.0.0/15	AS16509	/15	RIPE	Too specific

IRR

Route objects on the exact prefix

Origin	Registry	Description	Maintainer	Modified
AS16509	RADB	Amazon EC2 Prefix	MAINT-AS16509	May 21, 2026