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AS33655
AS33655 Comcast Cable Communications, LLC
CMCS - Comcast Cable Communications, LLC · registered in the United States
IPv4 addresses 89,600 40 prefixes · 0.003% of announced IPv4
Rank in United States #671 largest network in US by IPv4 space, of 18,338 · <0.01% of US
Rank worldwide #2,016 of 79,396 networks with IPv4
IPv6 130 x /32 (8,519,704 x /48) 13 prefixes
IPv4 prefixes
All 40 prefixes, in address order.
23.25.184.0/23 24.2.0.0/19 50.76.150.0/23 50.194.208.0/22 50.214.92.0/23 50.240.64.0/22 50.245.92.0/22 50.252.188.0/22 64.139.80.0/23 64.139.93.0/24 66.208.220.0/23 66.208.222.0/24 67.162.176.0/20 68.87.234.0/24 69.242.128.0/18 69.243.240.0/20 69.247.160.0/20 69.247.192.0/19 69.252.22.0/24 69.254.224.0/19 70.88.80.0/23 70.88.84.0/24 70.91.182.0/24 71.199.64.0/20 74.93.167.0/24 74.95.110.0/24 75.146.133.0/24 75.151.74.0/24 96.70.26.0/23 96.73.42.0/23 96.75.6.0/23 96.79.140.0/23 96.82.18.0/23 96.94.164.0/22 96.97.173.0/24 96.108.160.0/24 173.10.8.0/23 173.14.198.0/23 174.58.128.0/18 184.115.192.0/22
IPv6 prefixes
All 13 prefixes.
2001:558:c0::/44 2001:558:fe20::/48 2001:559:13f::/48 2001:559:4d8::/48 2001:559:518::/48 2001:559:83ff::/48 2001:559:8689::/48 2001:559:c3f7::/48 2001:559:c4ec::/48 2601:300::/26 2603:2300::/26 2603:300e::/32 2603:3095::/32
Other ASNs named Comcast Cable Communications, LLC
37 other networks use the same organisation name; together with AS33655 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 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
AS27411 #668 LEASEWEB-USA-CHI - Leaseweb USA, Inc.89,856 AS29863 #669 DATABANK-LATISYS - Latisys-Denver, LLC89,856 AS6984 #670 NYNEX-AS - Verizon Business89,856 AS40934 #672 FORTINET - Fortinet Inc.89,600 AS55293 #673 A2HOSTING - A2 Hosting, Inc.89,344 AS63023 #674 AS-GLOBALTELEHOST - GTHost89,088
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