ASN Lookup Tool

Comcast Cable Communications, LLC comcast.com US US 275 Routes

AS Data

AS33651

AS33651Comcast Cable Communications, LLC

AS Number 33651
AS Name CMCS
Organization Comcast Cable Communications, LLC(cccs)
Country US
Website comcast.com
Number of IPv4 Routes 66
Number of IPv6 Routes 209
ASN type ISP
Registry ARIN
Date Allocated 2005-02-16

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Use ASN data for AS33651 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route # IPs
2001:559:8368::/48 ~1×10²⁴
2001:559:861f::/48 ~1×10²⁴
2001:559:c470::/48 ~1×10²⁴
169.230.77.0/24 256
50.145.55.0/24 256
2001:559:197::/48 ~1×10²⁴
2001:559:83aa::/48 ~1×10²⁴
198.145.141.0/24 256
2001:559:c00e::/48 ~1×10²⁴
2001:559:80c3::/48 ~1×10²⁴

Raw Whois Response

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#


ASNumber:       33651
ASName:         CMCS
ASHandle:       AS33651
RegDate:        2005-02-16
Updated:        2021-01-25    
Ref:            https://rdap.arin.net/registry/autnum/33651



OrgName:        Comcast Cable Communications, LLC
OrgId:          CCCS
Address:        1800 Bishops Gate Blvd
City:           Mt Laurel
StateProv:      NJ
PostalCode:     08054
Country:        US
RegDate:        2001-09-18
Updated:        2020-11-18
Ref:            https://rdap.arin.net/registry/entity/CCCS


OrgRoutingHandle: ROUTI25-ARIN
OrgRoutingName:   Routing
OrgRoutingPhone:  +1-856-792-2300 
OrgRoutingEmail:  routing@comcast.com
OrgRoutingRef:    https://rdap.arin.net/registry/entity/ROUTI25-ARIN

OrgTechHandle: IC161-ARIN
OrgTechName:   Comcast Cable Communications Inc
OrgTechPhone:  +1-856-792-2300 
OrgTechEmail:  CNIPEO-Ip-registration@cable.comcast.com
OrgTechRef:    https://rdap.arin.net/registry/entity/IC161-ARIN

OrgAbuseHandle: NAPO-ARIN
OrgAbuseName:   Network Abuse and Policy Observance
OrgAbusePhone:  +1-888-565-4329 
OrgAbuseEmail:  abuse@comcast.net
OrgAbuseRef:    https://rdap.arin.net/registry/entity/NAPO-ARIN


#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#

Parsed Whois Response

Peers

AS Number Description Country
AS54201 We Link Networks LLC US
AS11574 San Francisco Baseball Associates LLC US
AS13843 Phoenix American Inc. US
AS46867 Sebastian US
AS5081 CLARE COMPUTER SOLUTIONS US
AS397450 City of Fairfield US
AS395844 LUSD US
AS26758 RESERVED ZZ
AS22414 Craigslist, Inc. US
AS397062 Sun-Maid Growers of California US

Upstreams

AS Number Description Country
AS3356 Level 3 Parent, LLC US
AS7922 Comcast Cable Communications, LLC US

Downstreams

AS Number Description Country
AS54201 We Link Networks LLC US
AS11574 San Francisco Baseball Associates LLC US
AS13843 Phoenix American Inc. US
AS46867 Sebastian US
AS5081 CLARE COMPUTER SOLUTIONS US
AS397450 City of Fairfield US
AS395844 LUSD US
AS6099 Alameda County Office of Education US
AS16914 MBH ARCHITECTS US
AS5774 United States Postal Service US

Contacts

Legacy Routes

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Frequently Asked Questions

ASN AS33651 is an Autonomous System Number used to identify a network for BGP internet routing.
AS33651 is listed under Comcast Cable Communications, LLC.
Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.
Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.
WHOIS provides registration and contact context for ASN ownership, administration, and operational reference.
This page previews large ASN datasets. Use See more to load additional rows, and upgrade your plan to view complete peer, route, upstream, and downstream data.