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Data as of Nov 8, 2026

50.171.209.0/24

No anonymizer space · no proxy exits in 30 days

Alliance Cloud Services LLC · space held by Comcast Cable Communications, LLC

Announcement
this exact prefix
RPKI valid
Announced by
AS393893
Type
Hosting
Risk
50 / 100 · Medium

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
50.128.0.0/9
since Mar 2011
AS7922Residential11,529
1,133 always on
Comcast Cable Communications, LLC

Registrations in this block

The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
50.128.0.0/98,388,608CCCH3-4Comcast Cable Communications, LLC (CCCS) · USDirect AllocationOct 21, 2010abuse@comcast.net
└ 50.171.0.0/1665,536CHICAGO-CCS-1Comcast Cable Communications, LLC (CCCS) · USReallocatedMay 31, 2022abuse@comcast.net
└ 50.171.209.0/24256ALLIANCE-CLOUD-SERVICES-LLCAlliance Cloud Services LLC (C11212224) · USReassignedMay 19, 2025abuse@comcast.net
via CHICAGO-CCS-1

A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
IPv4 market

Holder

Holder in the market →
Organization
Comcast Cable Communications, LLC
Handle
CCCS
Range
50.128.0.0/9
Registration type
Direct Allocation
Record created
Oct 21, 2010
Origin network

AS393893

US
Name
Alliance Cloud Services LLC
Type
Hosting
Registered
Nov 22, 2024
Domain
alliancecloudservices.com
Spamhaus ASN-DROP
not listed