Data as of Nov 8, 2026

50.228.149.0/24

1 residential-proxy exit · 30 days

NBCUniversal · space held by Comcast Cable Communications, LLC

Announcement

50.228.144.0/20

RPKI valid

Announced by

AS17035

Type

Business

Risk

0 / 100 · Low

Residential-proxy exits

Proxy exits

0.39% of its addresses · 30 days

Providers

selling exits here

Oct 9, 2026 – Nov 7, 2026

Exits seen per day

5 observations

Proxy providers listing exits

FastProxy
LemonBright

Announcements

Less specific

Covering announcements

Prefix	Origin	Type	Proxy exits	Holder	RPKI
50.128.0.0/9 since Mar 2011	AS7922	Residential	11,529 1,133 always on	Comcast Cable Communications, LLC

Network & registry

Announcement Routing history RPKI & IRR Whois & abuse

Announced by

Covering announcement 50.228.144.0/20

Prefix: 50.228.144.0/20
Announced by: AS17035 NBCUniversal
Type: Business
Proxy exits: 1
RPKI: RPKI valid
Netname: CCCH3-4
Registrant: Comcast Cable Communications, LLC
RIR: ARIN

Origin network

AS17035

Name: NBCUniversal
Type: Business
Registered: Jul 17, 2000
Domain: nbcuni.com
Industry: Radio and Television Providers
Spamhaus ASN-DROP: not listed

RPKI

Route origin authorizations

ROA prefix	ASN	Max len	Anchor	Verdict
50.228.144.0/20	AS17035	/20	ARIN	RPKI valid
50.228.144.0/20	AS54040	/20	ARIN	Another network
50.128.0.0/9	AS7922	/9	ARIN	Another network

IRR

Route objects on 50.228.144.0/20

Origin	Registry	Description	Maintainer	Modified
AS17035	ARIN	Comcast Cable Communications, LLC	MNT-CCCS	Jul 9, 2025
AS54040 not the origin	RADB	Comcast Cable Communications, Inc.	MAINT-AS7922	Nov 13, 2023

50.228.149.0/24

Residential-proxy exits

Exits seen per day

Proxy providers listing exits

Announcements

Covering announcements

Network & registry

Covering announcement 50.228.144.0/20

AS17035

Covering aggregate above, the prefix's own history below

Routing history

History

Route origin authorizations

Route objects on 50.228.144.0/20

Registration for this announcement

Abuse contact