AS33657

Comcast Cable Communications, LLC

AS 33657 CMCS

Autonomous Systems are networks typically governed by large ISPs that participate in global Internet routing. Each network is assigned a unique identification number known as the AS number or ASN by the Internet Assigned Numbers Authority.

1,554,176 IP addresses
ASN33657
NameCMCS
OrganizationComcast Cable Communications, LLC
CountryUnited States  
RegistryARIN
IPv4 addresses1,554,176
IPv6 /64 networks1.02 x 239
Prefixes447
Other ASN allocated to Comcast Cable Communications, LLC
ASN Name IP addresses
7922 COMCAST-7922 69,339,136
33491 COMCAST-33491 3,144,192
33651 CMCS 2,326,016
33668 CMCS 1,861,888
33652 CMCS 1,759,744
20214 COMCAST-20214 1,725,184
7016 CCCH-3 1,577,984
7725 COMCAST-7725 1,466,624
33287 COMCAST-33287 1,313,536
33659 CMCS 1,162,240
22909 COMCAST-22909 1,075,968
13367 COMCAST-13367 1,005,056
33667 CMCS 999,936
33490 COMCAST-33490 856,320
21508 COMCAST-21508 689,152
22258 COMCAST-22258 664,064
33489 COMCAST-33489 648,192
33661 CMCS 630,528
33660 CMCS 622,080
33654 CMCS 337,920
33666 CMCS 251,392
33656 CMCS 165,632
33665 CMCS 112,128
33655 CMCS 89,600
7015 COMCAST-7015 47,104
36732 COMCAST-36732 24,064
33650 COMCAST-33650 4,608
33662 CMCS 4,096
396021 COMCAST-MES 1,280
395980 COMCAST-MES 512
395974 COMCAST-MES 512
395976 COMCAST-MES 512
396017 COMCAST-MES 512
396019 COMCAST-MES 256
396415 COMCAST-MES 256
36377 PATRIOT-MEDIA-NJ 0
36733 DNEO-OSP7 0
53297 CIMEAST 0
393232 CMCS 0
33351 COMCAST-33351 0
7757 COMCAST-7757 0
33664 CMCS 0
23266 COMCAST-23266 0
23253 COMCAST-23253 0
6161 COMCAST-6161 0
33542 COMCAST-TELECOMM-3 0
16748 COMCAST-TELECOMM-4 0
14668 COMCAST-TELECOMM-6 0
13385 COMCAST-TELECOMM 0
33658 CMCS 0
11025 COMCAST-HOUSTON 0
33653 CMCS 0
7853 COMCAST-TELECOMM-2 0
33663 CMCS 0
36196 COMCAST-TELECOMM-5 0
IPv4 Prefixes for AS33657 - showing the first 20 of 186 networks
Network Location Addresses
107.1.101.0/24 Comcast Cable Communications, LLC   Baltimore (Reisterstown Station) 256
192.110.220.0/23 Comcast Cable Communications, LLC   Towson 512
192.189.235.0/24 Center Naval Analyses   Arlington (Court House) 256
208.87.105.0/24 Center American Progress   Washington D.C. (Northwest Washington) 256
50.201.252.0/24 Comcast Cable Communications, LLC   Reston 256
50.202.117.0/24 Comcast Cable Communications, LLC   Reston 256
50.202.12.0/24 Comcast Cable Communications   Cresson 256
50.202.155.0/24 Comcast Cable Communications, LLC   Baltimore 256
50.203.251.0/24 Comcast Cable Communications, LLC   Baltimore 256
50.204.116.0/24 Comcast Cable Communications, LLC   Frederick 256
50.204.128.0/24 Comcast Cable Communications, LLC   Lanham-Seabrook 256
50.205.74.0/24 Comcast Cable Communications, LLC   Baltimore (Reisterstown Station) 256
50.207.162.0/24 Comcast Cable Communications, LLC   Frederick 256
50.216.214.0/24 Comcast Cable Communications   Washington D.C. (Northeast Washington) 256
50.218.16.0/24 Comcast Cable Communications, LLC   Plainfield 256
50.219.87.0/24 Comcast Cable Communications, LLC   Frederick 256
50.223.158.0/24 Comcast Cable Communications   Germantown 256
50.223.159.0/24 Comcast Cable Communications   Rockville 256
50.224.212.0/24 Comcast Cable Communications, LLC   Baltimore (Reisterstown Station) 256
50.226.61.0/24 Comcast Cable Communications, LLC   Baltimore (Reisterstown Station) 256
IPv6 Prefixes for AS33657 - showing the first 20 of 261 networks
Network Location /64 Prefixes
2001:559:110::/48 Comcast Cable Communications, LLC   Washington D.C. (Northwest Washington) 216
2001:559:136::/48 Comcast Cable Communications, LLC   Chillum 216
2001:559:16a::/48 Comcast Cable Communications, LLC   Elkton 216
2001:559:191::/48 Comcast Cable Communications, LLC   Baltimore (Reisterstown Station) 216
2001:559:1da::/48 Comcast Cable Communications, LLC   Baltimore (Reisterstown Station) 216
2001:559:1f0::/48 Comcast Cable Communications, LLC   Baltimore (Reisterstown Station) 216
2001:559:1f8::/48 Comcast Cable Communications, LLC   Baltimore (Reisterstown Station) 216
2001:559:202::/48 Comcast Cable Communications, LLC   Catonsville 216
2001:559:214::/48 Comcast Cable Communications, LLC   Berlin 216
2001:559:246::/48 Comcast Cable Communications, LLC   Lanham-Seabrook 216
2001:559:25a::/48 Comcast Cable Communications, LLC   Rockville 216
2001:559:25b::/48 Comcast Cable Communications, LLC   Gaithersburg 216
2001:559:282::/48 Comcast Cable Communications, LLC   Baltimore 216
2001:559:284::/48 Comcast Cable Communications, LLC   Baltimore 216
2001:559:288::/48 Comcast Cable Communications, LLC   Lanham-Seabrook 216
2001:559:2b6::/48 Comcast Cable Communications, LLC   Rockville 216
2001:559:2ca::/48 Comcast Cable Communications, LLC   White Marsh 216
2001:559:2cb::/48 Comcast Cable Communications, LLC   White Marsh 216
2001:559:2f3::/48 Comcast Cable Communications, LLC   Alexandria 216
2001:559:300::/48 Comcast Cable Communications, LLC   Baltimore (Reisterstown Station) 216