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AS396021
AS396021 Comcast Cable Communications, LLC
COMCAST-MES - Comcast Cable Communications, LLC · registered in the United States
IPv4 addresses 1,280 4 prefixes · <0.001% of announced IPv4
Rank in United States #7,694 largest network in US by IPv4 space, of 18,338 · <0.01% of US
Rank worldwide #29,599 of 79,396 networks with IPv4
IPv6 none no IPv6 routes announced
IPv4 prefixes
All 4 prefixes, in address order.
50.171.218.0/24 50.216.94.0/24 50.225.249.0/24 50.227.252.0/23
Other ASNs named Comcast Cable Communications, LLC
37 other networks use the same organisation name; together with AS396021 they announce 68,427,008 IPv4 addresses. Largest 30 shown.
ASN Name IPv4 addresses
AS7922 COMCAST-7922 - Comcast Cable Communications, LLC US 42,195,200 AS33491 COMCAST-33491 - Comcast Cable Communications, LLC US 3,142,144 AS33651 CMCS - Comcast Cable Communications, LLC US 2,267,136 AS33668 CMCS - Comcast Cable Communications, LLC US 1,857,536 AS33652 CMCS - Comcast Cable Communications, LLC US 1,759,744 AS20214 COMCAST-20214 - Comcast Cable Communications, LLC US 1,720,832 AS7016 CCCH-3 - Comcast Cable Communications, LLC US 1,577,984 AS33657 CMCS - Comcast Cable Communications, LLC US 1,553,408 AS7725 COMCAST-7725 - Comcast Cable Communications, LLC US 1,466,624 AS33287 COMCAST-33287 - Comcast Cable Communications, LLC US 1,312,512 AS33659 CMCS - Comcast Cable Communications, LLC US 1,147,136 AS22909 COMCAST-22909 - Comcast Cable Communications, LLC US 1,075,968 AS13367 COMCAST-13367 - Comcast Cable Communications, LLC US 1,005,056 AS33667 CMCS - Comcast Cable Communications, LLC US 999,936 AS33490 COMCAST-33490 - Comcast Cable Communications, LLC US 852,480 AS21508 COMCAST-21508 - Comcast Cable Communications, LLC US 689,408 AS22258 COMCAST-22258 - Comcast Cable Communications, LLC US 664,064 AS33489 COMCAST-33489 - Comcast Cable Communications, LLC US 647,936 AS33661 CMCS - Comcast Cable Communications, LLC US 630,528 AS33660 CMCS - Comcast Cable Communications, LLC US 621,824 AS33654 CMCS - Comcast Cable Communications, LLC US 337,920 AS33666 CMCS - Comcast Cable Communications, LLC US 247,296 AS33656 CMCS - Comcast Cable Communications, LLC US 165,632 AS33653 CMCS - Comcast Cable Communications, LLC US 146,944 AS33665 CMCS - Comcast Cable Communications, LLC US 112,128 AS33655 CMCS - Comcast Cable Communications, LLC US 89,600 AS36733 DNEO-OSP7 - Comcast Cable Communications, LLC US 58,880 AS7015 COMCAST-7015 - Comcast Cable Communications, LLC US 46,080 AS36732 COMCAST-36732 - Comcast Cable Communications, LLC US 24,064 AS33662 CMCS - Comcast Cable Communications, LLC US 3,840
Similar-sized networks in United States
ASN Name IPv4 addresses
AS395565 #7691 MIEMX - Mexico Internet Exchange1,280 AS395911 #7692 MDLIVE-1 - Maryland Live! Casino1,280 AS396046 #7695 PNFP - Pinnacle Financial Partners, Inc.1,280 AS396311 #7696 FASTWAVE - FastWave.biz1,280 AS396336 #7697 HHS-DC - Holzer Health System1,280
IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources