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Data as of Nov 3, 2026

172.244.0.0/16

No anonymizer space · no proxy exits in 30 days

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
172.244.0.0/1665,536COMCAST-VOIP-4Comcast Cable Communications, LLC (CCCS) · USDirect AllocationApr 11, 2013[email protected]
└ 172.244.0.0/24256PIMA-CCS-PRI-1unknown———
└ 172.244.1.0/24256DENVER-CCS-PRI-2unknown———
└ 172.244.2.0/24256BEAVERTON-CCS-PRI-1unknown———
└ 172.244.3.0/24256RICHMOND-CCS-PRI-1unknown———
└ 172.244.4.0/23512BOSTON-CCS-PRI-2unknown———
└ 172.244.6.0/23512CHICAGO-CCS-PRI-2unknown———
└ 172.244.8.0/23512NJ-CCS-PRI-1unknown———
└ 172.244.10.0/23512HOUSTON-CCS-PRI-2unknown———
└ 172.244.12.0/24256SEATTLE-CCS-PRI-1unknown———
└ 172.244.13.0/24256AUGUSTA-CCS-PRI-1unknown———
└ 172.244.14.0/24256CHARLESTON-CCS-PRI-1unknown———
└ 172.244.15.0/24256CHATTANOOGA-CCS-PRI-1unknown———
└ 172.244.16.0/23512ATLANTA-CCS-PRI-2unknown———
└ 172.244.18.0/24256NASHVILLE-CCS-PRI-1unknown———
└ 172.244.19.0/24256UTAH-CCS-PRI-1unknown———
└ 172.244.20.0/23512BAWA-CCS-PRI-1unknown———
└ 172.244.22.0/24256BOSTON-CCS-PRI-1unknown———
└ 172.244.23.0/24256CENTRAL-PA-CCS-PRI-1unknown———
└ 172.244.24.0/24256DENVER-CCS-PRI-1unknown———
└ 172.244.25.0/24256HOUSTON-CCS-PRI-1unknown———
└ 172.244.26.0/24256SFBA-CCS-PRI-1unknown———
└ 172.244.27.0/24256SEATTLE-CCS-PRI-2unknown———
└ 172.244.28.0/24256CHICAGO-CCS-PRI-1unknown———
└ 172.244.29.0/24256PITTSBURGH-CCS-PRI-1unknown———
└ 172.244.30.0/24256MICHIGAN-CCS-PRI-1unknown———
└ 172.244.31.0/24256POMPANO-CCS-PRI-1unknown———
└ 172.244.32.0/23512PHILADELPHIA-CCS-PRI-1unknown———
└ 172.244.34.0/23512BAWA-CCS-PRI-2unknown———
└ 172.244.36.0/24256INDIANA-CCS-PRI-1unknown———
└ 172.244.37.0/24256UTAH-CCS-PRI-2unknown———
└ 172.244.38.0/23512CENTRAL-CAL-CCS-PRI-1unknown———
└ 172.244.40.0/23512SFBA-CCS-PRI-2unknown———
└ 172.244.42.0/23512BOSTON-CCS-PRI-3unknown———
└ 172.244.44.0/23512ATLANTA-CCS-PRI-3unknown———
└ 172.244.46.0/23512HOUSTON-CCS-PRI-3unknown———
└ 172.244.48.0/24256MINNESOTA-CCS-PRI-1unknown———
└ 172.244.49.0/24256DENVER-CCS-PRI-3unknown———
└ 172.244.50.0/23512CHICAGO-CCS-PRI-3unknown———
└ 172.244.52.0/24256CENTRAL-PA-CCS-PRI-2unknown———
└ 172.244.53.0/24256PITTSBURGH-CCS-PRI-2unknown———
└ 172.244.54.0/23512SEATTLE-CCS-PRI-4unknown———
└ 172.244.56.0/24256DENVER-CCS-PRI-4unknown———
└ 172.244.57.0/24256POMPANO-CCS-PRI-2unknown———
└ 172.244.58.0/24256NASHVILLE-CCS-PRI-2unknown———
└ 172.244.59.0/24256MICHIGAN-CCS-PRI-2unknown———
└ 172.244.60.0/24256KNOXVILLE-CCS-PRI-1unknown———
└ 172.244.61.0/24256BOSTON-CCS-PRI-4unknown———
└ 172.244.62.0/24256ALBUQUERQUE-CCS-PRI-1unknown———
└ 172.244.63.0/24256RICHMOND-CCS-PRI-2unknown———
└ 172.244.64.0/24256BAWA-CCS-PRI-3unknown———
└ 172.244.65.0/24256JACKSONVILLE-CCS-PRI-1unknown———
└ 172.244.66.0/23512HOUSTON-CCS-PRI-4unknown———
└ 172.244.68.0/221,024CHICAGO-CCS-PRI-4unknownReassignedMar 1, 2024[email protected]
via COMCAST-VOIP-4
└ 172.244.72.0/24256BEAVERTON-CCS-PRI-2unknown———
└ 172.244.73.0/24256DENVER-CCS-PRI-5unknown———
└ 172.244.74.0/23512NJ-CCS-PRI-2unknown———
└ 172.244.76.0/23512BOSTON-CCS-PRI-5unknown———
└ 172.244.78.0/24256PHILADELPHIA-CCS-PRI-2unknown———
└ 172.244.79.0/24256BAWA-CCS-PRI-4unknown———
└ 172.244.80.0/24256POMPANO-CCS-PRI-3unknown———
└ 172.244.81.0/24256SFBA-CCS-PRI-3unknown———
└ 172.244.82.0/24256ATLANTA-CCS-PRI-4unknown———
└ 172.244.83.0/24256MICHIGAN-CCS-PRI-3unknown———
└ 172.244.84.0/24256HOUSTON-CCS-PRI-5unknown———
└ 172.244.85.0/24256SEATTLE-CCS-PRI-5unknown———
└ 172.244.86.0/24256UTAH-CCS-PRI-3unknown———
└ 172.244.87.0/24256SEATTLE-CCS-PRI-6unknown———
└ 172.244.88.0/24256DENVER-CCS-PRI-6unknown———
└ 172.244.89.0/24256RICHMOND-CCS-PRI-3unknown———
└ 172.244.90.0/24256BAWA-CCS-PRI-5unknown———
└ 172.244.91.0/24256BOSTON-CCS-PRI-6unknown———
└ 172.244.92.0/24256INDIANA-CCS-PRI-2unknown———
└ 172.244.93.0/24256HOUSTON-CCS-PRI-6unknown———
└ 172.244.94.0/23512CHICAGO-CCS-PRI-5unknown———
└ 172.244.96.0/24256BAWA-CCS-PRI-6unknown———
└ 172.244.97.0/24256BEAVERTON-CCS-PRI-3unknown———
└ 172.244.98.0/24256CENTRAL-PA-CCS-PRI-3unknown———
└ 172.244.99.0/24256SFBA-CCS-PRI-4unknown———
└ 172.244.100.0/24256MINNESOTA-CCS-PRI-3unknown———
└ 172.244.101.0/24256BOSTON-CCS-PRI-7unknown———
└ 172.244.102.0/24256ATLANTA-CCS-PRI-5unknown———
└ 172.244.103.0/24256JACKSONVILLE-CCS-PRI-2unknown———
└ 172.244.104.0/24256SEATTLE-CCS-PRI-7unknown———
└ 172.244.105.0/24256DENVER-CCS-PRI-7unknown———
└ 172.244.106.0/24256MICHIGAN-CCS-PRI-4unknown———
└ 172.244.107.0/24256PHILADELPHIA-CCS-PRI-3unknown———
└ 172.244.108.0/24256PITTSBURGH-CCS-PRI-3unknown———
└ 172.244.109.0/24256NORTH-GULF-CCS-PRI-1unknown———
└ 172.244.110.0/23512BOSTON-CCS-PRI-8unknown———
└ 172.244.112.0/23512CHICAGO-CCS-PRI-6unknown———
└ 172.244.114.0/24256HUNTSVILLE-CCS-PRI-1unknown———
└ 172.244.115.0/24256PHILADELPHIA-CCS-PRI-4unknown———
└ 172.244.116.0/24256BAWA-CCS-PRI-7unknown———
└ 172.244.117.0/24256HOUSTON-CCS-PRI-7unknown———
└ 172.244.118.0/24256SAVANNAH-CCS-PRI-1unknown———
└ 172.244.119.0/24256DENVER-CCS-PRI-8unknown———
└ 172.244.120.0/24256NASHVILLE-CCS-PRI-3unknown———
└ 172.244.121.0/24256POMPANO-CCS-PRI-4unknown———
└ 172.244.122.0/24256BEAVERTON-CCS-PRI-4unknown———
└ 172.244.123.0/24256SFBA-CCS-PRI-5unknown———
└ 172.244.124.0/24256CENTRAL-CAL-CCS-PRI-2unknown———
└ 172.244.125.0/24256BOSTON-CCS-PRI-9unknown———
└ 172.244.126.0/24256BAWA-CCS-PRI-8unknown———
└ 172.244.127.0/24256MICHIGAN-CCS-PRI-5unknown———
└ 172.244.128.0/24256CENTRAL-PA-CCS-PRI-4unknown———
└ 172.244.129.0/24256NAPLES-CCS-PRI-1unknown———
└ 172.244.130.0/24256ATLANTA-CCS-PRI-6unknown———
└ 172.244.131.0/24256HOUSTON-CCS-PRI-8unknown———
└ 172.244.132.0/24256RICHMOND-CCS-PRI-4unknown———
└ 172.244.133.0/24256PHILADELPHIA-CCS-PRI-5unknown———
└ 172.244.134.0/24256CHICAGO-CCS-PRI-7unknown———
└ 172.244.135.0/24256DENVER-CCS-PRI-9unknown———
└ 172.244.136.0/24256LITTLE-ROCK-CCS-PRI-1unknown———
└ 172.244.137.0/24256MINNESOTA-CCS-PRI-2unknown———
└ 172.244.138.0/24256SEATTLE-CCS-PRI-3unknown———
└ 172.244.140.0/24256MEMPHIS-CCS-PRI-1unknown———
└ 172.244.141.0/24256PITTSBURGH-CCS-PRI-4unknown———
└ 172.244.142.0/23512POMPANO-CCS-PRI-5unknown———
└ 172.244.144.0/221,024WEST-FLORIDA-CCS-PRI-1Comcast Cable Communications, LLC (C06313378) · USReassignedJan 30, 2017[email protected]
via COMCAST-VOIP-4
└ 172.244.148.0/24256BAWA-CCS-PRI-9unknown———
└ 172.244.149.0/24256HOUSTON-CCS-PRI-9unknown———
└ 172.244.150.0/23512BOSTON-CCS-PRI-10unknown———
└ 172.244.152.0/23512CHICAGO-CCS-PRI-8unknown———
└ 172.244.154.0/24256NJ-CCS-PRI-3unknown———
└ 172.244.155.0/24256INDEPENDENCE-CCS-PRI-1unknown———
└ 172.244.156.0/23512PHILADELPHIA-CCS-PRI-6unknown———
└ 172.244.158.0/24256ALBUQUERQUE-CCS-PRI-2unknown———
└ 172.244.159.0/24256UTAH-CCS-PRI-4unknown———
└ 172.244.160.0/23512CENTRAL-CAL-CCS-PRI-3unknown———
└ 172.244.162.0/23512SEATTLE-CCS-PRI-8unknown———
└ 172.244.164.0/221,024DENVER-CCS-PRI-10Comcast Cable Communications, LLC (C06477971) · USReassignedMay 2, 2017[email protected]
via COMCAST-VOIP-4
└ 172.244.168.0/221,024HOUSTON-CCS-PRI-10Comcast Cable Communications, LLC (C06477980) · USReassignedMay 2, 2017[email protected]
via COMCAST-VOIP-4
└ 172.244.172.0/23512SFBA-CCS-PRI-8unknown———
└ 172.244.174.0/24256ATLANTA-CCS-PRI-7unknown———
└ 172.244.175.0/24256BAWA-CCS-PRI-10unknown———
└ 172.244.176.0/24256CENTRAL-PA-CCS-PRI-5unknown———
└ 172.244.177.0/24256MICHIGAN-CCS-PRI-6unknown———
└ 172.244.178.0/23512CHICAGO-CCS-PRI-9unknown———
└ 172.244.180.0/23512BOSTON-CCS-PRI-11unknown———
└ 172.244.182.0/24256RICHMOND-CCS-PRI-5unknown———
└ 172.244.183.0/24256BEAVERTON-CCS-PRI-5unknown———
└ 172.244.184.0/23512ATLANTA-CCS-PRI-8unknown———
└ 172.244.186.0/24256NASHVILLE-CCS-PRI-4unknown———
└ 172.244.187.0/24256MINNESOTA-CCS-PRI-4unknown———
└ 172.244.188.0/23512BAWA-CCS-PRI-11unknown———
└ 172.244.190.0/24256PITTSBURGH-CCS-PRI-5unknown———
└ 172.244.191.0/24256NJ-CCS-PRI-4unknown———
└ 172.244.192.0/23512BOSTON-CCS-PRI-12unknown———
└ 172.244.194.0/23512SEATTLE-CCS-PRI-12unknown———
└ 172.244.196.0/23512SFBA-CCS-PRI-11unknown———
└ 172.244.198.0/23512CENTRAL-PA-CCS-PRI-6unknown———
└ 172.244.200.0/23512PHILADELPHIA-CCS-PRI-7unknown———
└ 172.244.202.0/23512INDIANA-CCS-PRI-3unknown———
└ 172.244.204.0/24256MICHIGAN-CCS-PRI-7unknown———
└ 172.244.205.0/24256JACKSONVILLE-CCS-PRI-3unknown———
└ 172.244.206.0/23512BEAVERTON-CCS-PRI-6unknown———
└ 172.244.208.0/221,024HOUSTON-CCS-PRI-11Comcast Cable Communications, LLC (C06928387) · USReassignedMar 21, 2018[email protected]
via COMCAST-VOIP-4
└ 172.244.212.0/23512PITTSBURGH-CCS-PRI-6unknown———
└ 172.244.214.0/23512CHICAGO-CCS-PRI-12unknown———
└ 172.244.216.0/23512MICHIGAN-CCS-PRI-8unknown———
└ 172.244.218.0/23512PHILADELPHIA-CCS-PRI-8unknown———
└ 172.244.220.0/221,024BOSTON-CCS-PRI-13Comcast Cable Communications, LLC (C06991560) · USReassignedMay 29, 2018[email protected]
via COMCAST-VOIP-4
└ 172.244.224.0/221,024SEATTLE-CCS-PRI-13Comcast Cable Communications, LLC (C07000942) · USReassignedJun 12, 2018[email protected]
via COMCAST-VOIP-4
└ 172.244.228.0/221,024ATLANTA-CCS-PRI-9Comcast Cable Communications, LLC (C07005952) · USReassignedJun 20, 2018[email protected]
via COMCAST-VOIP-4
└ 172.244.232.0/23512BAWA-CCS-PRI-13unknown———
└ 172.244.234.0/23512POMPANO-CCS-PRI-6unknown———
└ 172.244.236.0/221,024BOSTON-CCS-PRI-14Comcast Cable Communications, LLC (C07017887) · USReassignedJul 6, 2018[email protected]
via COMCAST-VOIP-4
└ 172.244.240.0/24256NJ-CCS-PRI-5unknown———
└ 172.244.241.0/24256RICHMOND-CCS-PRI-6unknown———
└ 172.244.242.0/23512POMPANO-CCS-PRI-7unknown———
└ 172.244.244.0/23512JACKSONVILLE-CCS-PRI-4unknown———
└ 172.244.246.0/23512JACKSONVILLE-CCS-PRI-5unknown———
└ 172.244.248.0/23512CHICAGO-CCS-PRI-13unknown———
└ 172.244.250.0/23512NJ-CCS-PRI-6unknown———
└ 172.244.252.0/23512RICHMOND-CCS-PRI-7unknown———
└ 172.244.254.0/23512CENTRAL-PA-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