Comcast Cable Communications, LLC

AS 33657 CMCS - Comcast Cable Communications, LLC

Comcast Cable Communications, LLC

AS 33657 CMCS - Comcast Cable Communications, LLC


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.

  30,464 IP addresses

  Network
ASN33657
NameCMCS - Comcast Cable Communications, LLC
OrganizationComcast Cable Communications, LLC
CountryUnited States  
RegistryARIN


  Details
IPv4 addresses30,464
IPv6 /64 networks1.22 x 237
Prefixes44




  Prefixes for AS33657
IPv4 addresses - showing the first 20 of 35 networks
Network Location Addresses
Comcast Cable Communications, LLC   Manassas 256
Comcast Cable Communications, LLC   White Marsh 512
Comcast Cable Communications, LLC   New York 256
Comcast Cable Communications, LLC   White Marsh 4,096
Comcast Cable Communications, LLC   Florham Park 256
Comcast Cable Communications, LLC   Gambrills 256
Comcast Cable Communications, LLC   Gambrills 256
Comcast Cable Communications, LLC   Colonial Heights 256
Comcast Cable Communications, LLC   Colonial Heights 256
Comcast Cable Communications, LLC   Colonial Heights 256
Comcast Cable Communications, LLC   Colonial Heights 256
Altarum Institute   Rockville 256
Synectics Management Decisions   Arlington (North Rosslyn) 256
Comcast Cable Communications, LLC   White Marsh 256
Comcast Cable Communications, LLC   Shepherdstown 4,096
Comcast Cable Communications, LLC   Colonial Heights 256
Comcast Cable Communications, LLC   Colonial Heights 256
  Colonial Heights 256
Comcast Cable Communications, LLC   White Marsh 256
Comcast Cable Communications, LLC   White Marsh 256

IPv6 addresses - showing the first 8 of 9 networks
Network Location /64 Prefixes
Avensys Networks Ltd   Boston 236
Avensys Networks Ltd   London 236
As397881   New York 232
Comcast Cable Communications, LLC   Colonial Heights 232
Comcast Cable Communications, LLC   Colonial Heights 232
Comcast Cable Communications   New Market 232
Comcast Cable Communications   New Market 232
Comcast Cable Communications   New Market 232