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.

2,937,600 IP addresses
ASN33657
NameCMCS
OrganizationComcast Cable Communications, LLC
CountryUnited States  
RegistryARIN
IPv4 addresses2,937,600
IPv6 /64 networks1.01 x 239
Prefixes577
Other ASN allocated to Comcast Cable Communications, LLC
ASN Name IP addresses
7922 COMCAST-7922 71,073,280
33491 COMCAST-33491 5,507,072
7015 COMCAST-7015 4,842,848
33651 CMCS 3,532,032
20214 COMCAST-20214 3,024,640
7016 CCCH-3 2,669,568
33650 COMCAST-33650 2,639,616
33652 CMCS 2,434,048
33668 CMCS 2,394,368
33662 CMCS 2,331,136
33659 CMCS 2,308,352
7725 COMCAST-7725 2,221,568
33667 CMCS 1,865,984
33287 COMCAST-33287 1,771,264
33490 COMCAST-33490 1,492,480
22909 COMCAST-22909 1,428,736
13367 COMCAST-13367 1,337,600
33661 CMCS 1,291,264
21508 COMCAST-21508 1,265,664
33489 COMCAST-33489 1,243,648
22258 COMCAST-22258 948,736
33660 CMCS 889,600
33654 CMCS 545,024
33666 CMCS 366,592
33653 CMCS 206,848
33665 CMCS 205,056
33656 CMCS 179,968
33655 CMCS 170,496
36733 DNEO-OSP7 79,872
36732 COMCAST-36732 24,064
396021 COMCAST-MES 1,792
395980 COMCAST-MES 512
395976 COMCAST-MES 512
396017 COMCAST-MES 512
395974 COMCAST-MES 512
396415 COMCAST-MES 256
396019 COMCAST-MES 256
53297 CIMEAST 0
393232 CMCS 0
36377 PATRIOT-MEDIA-NJ 0
7757 COMCAST-7757 0
7853 COMCAST-TELECOMM-2 0
33542 COMCAST-TELECOMM-3 0
23266 COMCAST-23266 0
23253 COMCAST-23253 0
6161 COMCAST-6161 0
16748 COMCAST-TELECOMM-4 0
33658 CMCS 0
14668 COMCAST-TELECOMM-6 0
13385 COMCAST-TELECOMM 0
11025 COMCAST-HOUSTON 0
33663 CMCS 0
33664 CMCS 0
33351 COMCAST-33351 0
36196 COMCAST-TELECOMM-5 0
IPv4 Prefixes for AS33657 - showing the first 20 of 218 networks
Network Location Addresses
107.1.101.0/24 Comcast Cable Communications, LLC   Alexandria 256
162.151.60.0/23 Comcast Cable Communications, LLC   Baltimore (Reisterstown Station) 512
162.151.74.0/23 Comcast Cable Communications, LLC   Capitol Heights 512
162.151.98.0/23 Comcast Cable Communications, LLC   Washington D.C. 512
162.17.192.0/19 Comcast Cable Communications   Owings 8,192
173.10.0.0/21 Comcast Cable Communications, LLC   Laurel 2,048
173.10.128.0/18 Comcast Cable Communications   Reston 16,384
173.13.192.0/18 Comcast Cable Communications, LLC   Washington D.C. 16,384
173.166.128.0/18 Comcast Cable Communications, LLC   Baltimore (Reisterstown Station) 16,384
173.167.192.0/20 Comcast Cable Communications   Greenbelt 4,096
173.8.0.0/19 Comcast Cable Communications, LLC   Alexandria 8,192
174.172.0.0/16 Comcast Cable Communications, LLC   Baltimore (Reisterstown Station) 65,536
192.110.220.0/23 Comcast Cable Communications, LLC   Towson 512
192.203.187.0/24 Comcast Cable Communications, LLC   Florham Park 256
199.249.199.0/24 Comcast Cable Communications, LLC   Olney 256
204.52.186.0/24 Comcast Cable Communications, LLC   Arlington (North Rosslyn) 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
23.24.96.0/19 Comcast Cable Communications, LLC   Washington D.C. (Northeast Washington) 8,192
23.25.188.0/22 Comcast Cable Communications, LLC   Salisbury 1,024
IPv6 Prefixes for AS33657 - showing the first 20 of 359 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   Indianapolis 216
2001:559:16a::/48 Comcast Cable Communications, LLC   North Miami 216
2001:559:1e1::/48 Comcast Cable Communications, LLC   Plainfield 216
2001:559:1e7::/48 Comcast Cable Communications, LLC   San Francisco (Mission San Rafael) 216
2001:559:202::/48 Comcast Cable Communications, LLC   Plainfield 216
2001:559:214::/48 Comcast Cable Communications, LLC   Baltimore (Reisterstown Station) 216
2001:559:240::/48 Comcast Cable Communications, LLC   Rockville 216
2001:559:246::/48 Comcast Cable Communications, LLC   Reading 216
2001:559:25a::/48 Comcast Cable Communications, LLC   Denver (Five Points) 216
2001:559:25b::/48 Comcast Cable Communications, LLC   Denver (Five Points) 216
2001:559:282::/48 Comcast Cable Communications, LLC   Oklahoma City (Central Oklahoma City) 216
2001:559:284::/48 Comcast Cable Communications, LLC   Towson 216
2001:559:288::/48 Comcast Cable Communications, LLC   Lanham 216
2001:559:2b6::/48 Comcast Cable Communications, LLC   Denver (Five Points) 216
2001:559:2ca::/48 Comcast Cable Communications, LLC   Malvern 216
2001:559:2cb::/48 Comcast Cable Communications, LLC   Malvern 216
2001:559:2ee::/48 Comcast Cable Communications, LLC   Chambersburg 216
2001:559:2f3::/48 Comcast Cable Communications, LLC   Denver (Five Points) 216
2001:559:304::/48 Comcast Cable Communications, LLC   Baltimore (Reisterstown Station) 216