Data as of Nov 12, 2026

173.21.3.0/24

8 residential-proxy exits · 30 days

Mediacom Communications Corp

Announcement

173.21.0.0/21

RPKI valid

Announced by

AS30036

Type

Residential

Risk

0 / 100 · Low

Residential-proxy exits

Proxy exits

3.1% of its addresses · 30 days

Providers

selling exits here

Oct 13, 2026 – Nov 11, 2026

Exits seen per day

3.5K observations

Proxy providers listing exits

AnyIP
CliProxy
ColaProxy
Decodo
EnigmaProxy
FastProxy
FloppyData
GloryCloud
IPFly
LemonBright
LudaxProxy
NovaProxy
Oxylabs
PROXYSCRAPE
Proxiware
ProxyEmpire
PuraRoute
RainProxy
Thordata
ThunderProxy
TrueProxies
VantageProxies
ZENPROXY_LITE

Network & registry

Announcement Routing history RPKI & IRR Whois & abuse

Routing timeline

Who has announced 173.21.0.0/21

173.21.0.0/21

Routing history

Pattern: Stable
First seen: Nov 2008
Current origin since: Sep 2011 · 15 yr
Origin networks: 2
Last change of origin: Mar 2012

Recorded history

History

Handoffs: 2

RPKI

Route origin authorizations

ROA prefix	ASN	Max len	Anchor	Verdict
173.21.0.0/21	AS19905	/21	ARIN	Another network
173.21.0.0/21	AS30036	/21	ARIN	RPKI valid
173.16.0.0/12	AS19905	/12	ARIN	Another network
173.16.0.0/12	AS30036	/12	ARIN	Too specific

IRR

Route objects on 173.21.0.0/21

Origin	Registry	Description	Maintainer	Modified
AS30036	ARIN	Mediacom Communications Corp	MNT-MCC-244	Jun 18, 2024