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AS33653
AS33653 Comcast Cable Communications, LLC
CMCS - Comcast Cable Communications, LLC · registered in the United States
IPv4 addresses 146,944 42 prefixes · 0.005% of announced IPv4
Rank in United States #419 largest network in US by IPv4 space, of 18,338 · 0.01% of US
Rank worldwide #1,356 of 79,396 networks with IPv4
IPv6 130 x /32 (8,519,697 x /48) 6 prefixes
IPv4 prefixes
All 42 prefixes, in address order.
24.11.144.0/20 50.188.130.0/23 50.197.226.0/23 50.208.236.0/24 50.208.238.0/23 50.248.112.0/23 50.252.182.0/23 64.139.76.0/24 64.139.88.0/23 66.208.204.0/23 66.208.218.0/23 66.208.223.0/24 68.84.192.0/20 68.86.201.0/24 68.87.172.0/24 69.136.112.0/20 69.137.176.0/20 69.242.224.0/20 69.244.0.0/18 69.254.192.0/20 70.88.172.0/23 70.89.75.0/24 71.226.32.0/19 71.226.112.0/20 71.228.144.0/20 74.93.39.0/24 74.94.94.0/24 74.95.131.0/24 75.146.134.0/24 76.18.96.0/19 76.29.208.0/20 76.134.160.0/19 76.159.128.0/17 96.73.40.0/23 96.75.4.0/23 96.81.4.0/22 96.91.74.0/23 96.97.46.0/23 98.48.192.0/19 107.2.0.0/18 173.10.236.0/23 184.116.252.0/22
IPv6 prefixes
All 6 prefixes.
2001:558:50::/44 2001:558:fe2c::/48 2601:500::/26 2603:2500::/26 2603:301e::/32 2603:30a1::/32
Other ASNs named Comcast Cable Communications, LLC
37 other networks use the same organisation name; together with AS33653 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 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 AS33650 COMCAST-33650 - Comcast Cable Communications, LLC US 3,584
Similar-sized networks in United States
ASN Name IPv4 addresses
AS19871 #416 NETWORK-SOLUTIONS-HOSTING - Network Solutions, LLC147,712 AS12042 #417 ENVENTIS - Fidium147,200 AS6041 #418 DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD)147,200 AS14551 #420 UUNET-SA - Verizon Business146,944 AS19331 #421 TWIN-LAKES - Twin Lakes Telephone Cooperative Corporation146,432 AS16787 #422 CHARTER-16787-DC - Charter Communications LLC145,664
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