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.

15,872 IP addresses
ASN33657
NameCMCS
OrganizationComcast Cable Communications, LLC
CountryUnited States  
RegistryARIN
IPv4 addresses15,872
IPv6 /64 networks1.99 x 223
Prefixes286
Other ASN allocated to Comcast Cable Communications, LLC
ASN Name IP addresses
7922 COMCAST-7922 68,026,624
20214 COMCAST-20214 136,704
33659 CMCS 71,680
21508 COMCAST-21508 71,680
33491 COMCAST-33491 69,888
33651 CMCS 67,328
33667 CMCS 52,480
7015 COMCAST-7015 46,592
33490 COMCAST-33490 22,272
33652 CMCS 16,896
7016 CCCH-3 13,056
33287 COMCAST-33287 12,800
7725 COMCAST-7725 9,728
33668 CMCS 6,912
33650 COMCAST-33650 6,144
33662 CMCS 5,120
22258 COMCAST-22258 3,328
33489 COMCAST-33489 2,816
33660 CMCS 2,816
13367 COMCAST-13367 2,048
33661 CMCS 1,792
22909 COMCAST-22909 1,792
396021 COMCAST-MES 1,280
33666 CMCS 1,024
395980 COMCAST-MES 768
395974 COMCAST-MES 512
395976 COMCAST-MES 512
396017 COMCAST-MES 512
396415 COMCAST-MES 256
16748 COMCAST-TELECOMM-4 256
36732 COMCAST-36732 256
396019 COMCAST-MES 256
7853 COMCAST-TELECOMM-2 0
7757 COMCAST-7757 0
36377 PATRIOT-MEDIA-NJ 0
36733 DNEO-OSP7 0
53297 CIMEAST 0
393232 CMCS 0
33351 COMCAST-33351 0
33665 CMCS 0
23266 COMCAST-23266 0
23253 COMCAST-23253 0
33542 COMCAST-TELECOMM-3 0
6161 COMCAST-6161 0
14668 COMCAST-TELECOMM-6 0
13385 COMCAST-TELECOMM 0
33654 CMCS 0
33655 CMCS 0
33656 CMCS 0
33658 CMCS 0
33653 CMCS 0
11025 COMCAST-HOUSTON 0
33663 CMCS 0
33664 CMCS 0
36196 COMCAST-TELECOMM-5 0
IPv4 Prefixes for AS33657 - showing the first 20 of 31 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
199.249.199.0/24 Comcast Cable Communications, LLC   Olney 256
208.87.105.0/24 Center American Progress   Washington D.C. (Northwest Washington) 256
216.145.192.0/20 Comcast Cable Communications, LLC   Shepherdstown 4,096
50.201.252.0/24 Comcast Cable Communications, LLC   Reston 256
50.202.117.0/24 Comcast Cable Communications, LLC   Reston 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
50.219.87.0/24 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
50.232.109.0/24 Comcast Cable Communications, LLC   Rockville 256
50.232.173.0/24 Comcast Cable Communications, LLC   Baltimore (Reisterstown Station) 256
IPv6 Prefixes for AS33657 - showing the first 20 of 255 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
2001:559:1e7::/48 Comcast Cable Communications, LLC   Washington D.C. (Northeast Washington) 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
2001:559:304::/48 Comcast Cable Communications, LLC   Baltimore 216
2001:559:30d::/48 Comcast Cable Communications, LLC   Waldorf 216
2001:559:319::/48 Comcast Cable Communications, LLC   Lake Ridge 216
2001:559:377::/48 Comcast Cable Communications, LLC   Washington D.C. (Northwest Washington) 216