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Data as of Nov 3, 2026

23.68.0.0/14

No anonymizer space

Comcast Cable Communications, LLC

Announcement
this exact prefix
RPKI valid
Announced by
AS7922
Type
Internet provider
Risk
0 / 100 · Low

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
23.68.0.0/14262,144COMCAST-VOIP-4Comcast Cable Communications, LLC (CCCS) · USDirect AllocationApr 30, 2012[email protected]
└ 23.70.0.0/23512BEAVERTON-CCS-PRI-8unknown———
└ 23.70.2.0/24256KNOXVILLE-CCS-PRI-2unknown———
└ 23.70.3.0/24256POMPANO-CCS-PRI-12unknown———
└ 23.70.4.0/221,024HOUSTON-CCS-PRI-13Comcast Cable Communications, LLC (C07407530) · USReassignedAug 13, 2019[email protected]
via COMCAST-VOIP-4
└ 23.70.8.0/221,024CHICAGO-CCS-PRI-16Comcast Cable Communications, LLC (C07415606) · USReassignedAug 22, 2019[email protected]
via COMCAST-VOIP-4
└ 23.70.12.0/221,024MINNESOTA-CCS-PRI-8Comcast Cable Communications, LLC (C10748271) · USReassignedMar 7, 2024[email protected]
via COMCAST-VOIP-4
└ 23.70.16.0/212,048BOSTON-CCS-PRI-16Comcast Cable Communications, LLC (C07429968) · USReassignedSep 19, 2019[email protected]
via COMCAST-VOIP-4
└ 23.70.24.0/221,024SEATTLE-CCS-PRI-15Comcast Cable Communications, LLC (C07433733) · USReassignedOct 3, 2019[email protected]
via COMCAST-VOIP-4
└ 23.70.28.0/23512MICHIGAN-CCS-PRI-10unknown———
└ 23.70.30.0/23512NASHVILLE-CCS-PRI-6unknown———
└ 23.70.32.0/221,024DENVER-CCS-PRI-12Comcast Cable Communications, LLC (C07473624) · USReassignedDec 13, 2019[email protected]
via COMCAST-VOIP-4
└ 23.70.36.0/221,024ATLANTA-CCS-PRI-11Comcast Cable Communications, LLC (C07496898) · USReassignedFeb 3, 2020[email protected]
via COMCAST-VOIP-4
└ 23.70.40.0/23512UTAH-CCS-PRI-10unknown———
└ 23.70.42.0/23512SFBA-CCS-PRI-14unknown———
└ 23.70.44.0/24256LITTLE-ROCK-CCS-PRI-2unknown———
└ 23.70.45.0/24256POMPANO-CCS-PRI-9unknown———
└ 23.70.46.0/23512MICHIGAN-CCS-PRI-11unknown———
└ 23.70.48.0/221,024CHICAGO-CCS-PRI-18Comcast Cable Communications, LLC (C07654243) · USReassignedOct 5, 2020[email protected]
via COMCAST-VOIP-4
└ 23.70.52.0/23512BEAVERTON-CCS-PRI-9unknown———
└ 23.70.54.0/23512UTAH-CCS-PRI-11unknown———
└ 23.70.56.0/23512JACKSONVILLE-CCS-PRI-6unknown———
└ 23.70.58.0/24256MINNESOTA-CCS-PRI-9unknown———
└ 23.70.59.0/24256LAKE-COUNTY-CCS-PRI-1unknown———
└ 23.70.60.0/221,024CHICAGO-CCS-PRI-19Comcast Cable Communications, LLC (C08771530) · USReassignedJul 25, 2022[email protected]
via COMCAST-VOIP-4
└ 23.71.0.0/221,024SFBA-CCS-PRI-12Comcast Cable Communications, LLC (C07238901) · USReassignedOct 30, 2018[email protected]
via COMCAST-VOIP-4
└ 23.71.4.0/24256MINNESOTA-CCS-PRI-5unknown———
└ 23.71.5.0/24256CHICAGO-CCS-PRI-10unknown———
└ 23.71.6.0/23512ATLANTA-CCS-PRI-10unknown———
└ 23.71.8.0/23512CHICAGO-CCS-PRI-14unknown———
└ 23.71.10.0/23512NASHVILLE-CCS-PRI-5unknown———
└ 23.71.12.0/221,024DENVER-CCS-PRI-11Comcast Cable Communications, LLC (C07238885) · USReassignedOct 30, 2018[email protected]
via COMCAST-VOIP-4
└ 23.71.16.0/23512UTAH-CCS-PRI-8unknown———
└ 23.71.18.0/23512PHILADELPHIA-CCS-PRI-9unknown———
└ 23.71.20.0/23512PITTSBURGH-CCS-PRI-7unknown———
└ 23.71.22.0/23512BEAVERTON-CCS-PRI-7unknown———
└ 23.71.24.0/23512INDIANA-CCS-PRI-4unknown———
└ 23.71.26.0/24256CENTRAL-CAL-CCS-PRI-4unknown———
└ 23.71.27.0/24256ALBUQUERQUE-CCS-PRI-3unknown———
└ 23.71.28.0/221,024BOSTON-CCS-PRI-15Comcast Cable Communications, LLC (C07266004) · USReassignedDec 20, 2018[email protected]
via COMCAST-VOIP-4
└ 23.71.32.0/221,024HOUSTON-CCS-PRI-12Comcast Cable Communications, LLC (C07266007) · USReassignedDec 20, 2018[email protected]
via COMCAST-VOIP-4
└ 23.71.36.0/23512NJ-CCS-PRI-7unknown———
└ 23.71.38.0/24256NAPLES-CCS-PRI-2unknown———
└ 23.71.39.0/24256MINNESOTA-CCS-PRI-6unknown———
└ 23.71.40.0/23512RICHMOND-CCS-PRI-8unknown———
└ 23.71.42.0/23512UTAH-CCS-PRI-9unknown———
└ 23.71.44.0/24256BDN-SNP-CCS-PRI-1unknown———
└ 23.71.45.0/24256MEMPHIS-CCS-PRI-2unknown———
└ 23.71.46.0/23512MICHIGAN-CCS-PRI-9unknown———
└ 23.71.48.0/221,024CENTRAL-CAL-CCS-PRI-5Comcast Cable Communications, LLC (C07322692) · USReassignedApr 9, 2019[email protected]
via COMCAST-VOIP-4
└ 23.71.52.0/23512CHICAGO-CCS-PRI-15unknown———
└ 23.71.54.0/24256MINNESOTA-CCS-PRI-7unknown———
└ 23.71.55.0/24256SAVANNAH-CCS-PRI-2unknown———
└ 23.71.56.0/221,024BAWA-CCS-PRI-14Comcast Cable Communications, LLC (C10745808) · USReassignedMar 6, 2024[email protected]
via COMCAST-VOIP-4
└ 23.71.60.0/221,024CHICAGO-CCS-PRI-11Comcast Cable Communications, LLC (C06856249) · USReassignedDec 15, 2017[email protected]
via COMCAST-VOIP-4
└ 23.71.128.0/23512PHILADELPHIA-CCS-PRI-10unknown———
└ 23.71.130.0/23512BAWA-CCS-PRI-15unknown———
└ 23.71.132.0/23512CENTRAL-PA-CCS-PRI-8unknown———
└ 23.71.134.0/23512POMPANO-CCS-PRI-8unknown———
└ 23.71.136.0/23512SFBA-CCS-PRI-13unknown———
└ 23.71.138.0/23512BAWA-CCS-PRI-12unknown———
└ 23.71.140.0/221,024SEATTLE-CCS-PRI-14Comcast Cable Communications, LLC (C07238897) · USReassignedOct 30, 2018[email protected]
via COMCAST-VOIP-4
└ 23.71.144.0/221,024DENVER-CCS-PRI-13Comcast Cable Communications, LLC (C09767336) · USReassignedJul 5, 2023[email protected]
via COMCAST-VOIP-4
└ 23.71.148.0/221,024CHICAGO-CCS-PRI-20Comcast Cable Communications, LLC (CCCS) · USReallocatedAug 28, 2023[email protected]
└ 23.71.152.0/23512POMPANO-CCS-PRI-11unknown———
└ 23.71.154.0/23512JACKSONVILLE-CCS-PRI-7unknown———
└ 23.71.156.0/24256HUNTSVILLE-CCS-PRI-2unknown———
└ 23.71.157.0/24256NORTH-GULF-CCS-PRI-2unknown———
└ 23.71.158.0/24256BDN-DSIT-CMC-CCS-PRI-1unknown———
└ 23.71.160.0/221,024MICHIGAN-CCS-PRI-14Comcast Cable Communications, LLC (C10887924) · USReassignedJul 1, 2024[email protected]
via COMCAST-VOIP-4
└ 23.71.192.0/221,024BAWA-CCS-PRI-16Comcast Cable Communications, LLC (C07521056) · USReassignedMar 16, 2020[email protected]
via COMCAST-VOIP-4
└ 23.71.196.0/23512SEATTLE-CCS-PRI-16unknown———
└ 23.71.198.0/23512CENTRAL-PA-CCS-PRI-9unknown———
└ 23.71.200.0/221,024HOUSTON-CCS-PRI-14Comcast Cable Communications, LLC (C07521096) · USReassignedMar 16, 2020[email protected]
via COMCAST-VOIP-4
└ 23.71.204.0/221,024NJ-CCS-PRI-8Comcast Cable Communications, LLC (C07521157) · USReassignedMar 16, 2020[email protected]
via COMCAST-VOIP-4
└ 23.71.208.0/221,024PITTSBURGH-CCS-PRI-8Comcast Cable Communications, LLC (C10748246) · USReassignedMar 7, 2024[email protected]
via COMCAST-VOIP-4
└ 23.71.212.0/221,024PHILADELPHIA-CCS-PRI-11Comcast Cable Communications, LLC (C07521266) · USReassignedMar 16, 2020[email protected]
via COMCAST-VOIP-4
└ 23.71.216.0/23512RICHMOND-CCS-PRI-9unknown———
└ 23.71.218.0/23512ALBUQUERQUE-CCS-PRI-4unknown———
└ 23.71.220.0/23512CENTRAL-CAL-CCS-PRI-6unknown———
└ 23.71.222.0/23512CHICAGO-CCS-PRI-17unknown———
└ 23.71.224.0/23512INDIANA-CCS-PRI-5unknown———
└ 23.71.226.0/24256MEMPHIS-CCS-PRI-3unknown———
└ 23.71.227.0/24256NAPLES-CCS-PRI-3unknown———
└ 23.71.228.0/23512MICHIGAN-CCS-PRI-12unknown———
└ 23.71.230.0/23512POMPANO-CCS-PRI-10unknown———
└ 23.71.232.0/221,024ATLANTA-CCS-PRI-12Comcast Cable Communications, LLC (C08898060) · USReassignedSep 20, 2022[email protected]
via COMCAST-VOIP-4
└ 23.71.236.0/24256KNOXVILLE-CCS-PRI-3unknown———
└ 23.71.237.0/24256CHARLESTON-CCS-PRI-2unknown———
└ 23.71.238.0/23512INDIANA-CCS-PRI-6unknown———
└ 23.71.240.0/212,048BOSTON-CCS-PRI-17Comcast Cable Communications, LLC (C09077924) · USReassignedDec 13, 2022[email protected]
via COMCAST-VOIP-4
└ 23.71.248.0/221,024MICHIGAN-CCS-PRI-13Comcast Cable Communications, LLC (C09175140) · USReassignedJan 31, 2023[email protected]
via COMCAST-VOIP-4
└ 23.71.252.0/23512ALBUQUERQUE-CCS-PRI-5unknown———
└ 23.71.254.0/24256TUSCALOOSA-CCS-PRI-1unknown———
└ 23.71.255.0/24256INDIANA-CCS-PRI-7unknown———

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
Origin network

AS7922

US
Name
Comcast Cable Communications, LLC
Type
Internet provider
Registered
Feb 14, 1997
Domain
comcast.com
Website
corporate.comcast.com/
Industry
Internet Service Provider (ISP)
Spamhaus ASN-DROP
not listed