Data as of Nov 11, 2026

203.4.166.0/24

1 residential-proxy exit · 30 days

Peter MacCallum Cancer Institute · space held by Peter MacCallum Cancer Centre

Announcement

this exact prefix

RPKI valid

Announced by

AS149872

Type

Business

Risk

0 / 100 · Low

Residential-proxy exits

Proxy exits

0.39% of its addresses · 30 days

Providers

selling exits here

Oct 12, 2026 – Nov 10, 2026

Exits seen per day

19 observations

Proxy providers listing exits

AnyIP
FloppyData
LemonBright

Announcements

Less specific

Covering announcements

Prefix	Origin	Type	Proxy exits	Holder	RPKI
203.4.164.0/22 since Sep 2022	AS149872	Business	1	Peter MacCallum Cancer Centre

Network & registry

Announcement Routing history RPKI & IRR Whois & abuse

Routing timeline

Covering aggregate above, the prefix's own history below

Summary

Routing history

Pattern: Rotating
First seen: May 2009
Current origin since: Nov 2022 · 4.0 yr
Origin networks: 3
Last change of origin: Nov 2022

Recorded history

History

Handoffs: 2

RPKI

Route origin authorizations

ROA prefix	ASN	Max len	Anchor	Verdict
203.4.166.0/24	AS149872	/24	APNIC	RPKI valid
203.4.164.0/22	AS149872	/22	APNIC	Too specific

IRR

Route objects on the exact prefix

Origin	Registry	Description	Maintainer	Modified
AS149872	APNIC	Peter MacCallum Cancer Institute	MAINT-PMCI-AU	Apr 14, 2025