AS33651

Name: AS33651 — Comcast Cable Communications, LLC
Creator: ipdex

Comcast Cable Communications, LLC ISP registered in United States

82IPv4 prefixes

192IPv6 prefixes

94%RPKI-valid

#303AS Rank

#117Rank in United States

2005-02-16Allocated

Comcast Cable Communications, LLC (AS33651) — ISP, registered in United States. announces 82 IPv4 prefixes + 192 IPv6 prefixes. Rank in United States: #117. Allocated: 2005-02-16.

IPv4 82IPv6 192

Announced prefixes · 274

v4 103.111.63.0/24 invalid
v4 103.216.197.0/24 valid
v4 107.0.21.0/24 valid
v4 135.132.64.0/19 valid
v4 135.132.72.0/22 invalid
v4 135.132.76.0/22 invalid
v4 138.226.192.0/21 valid
v4 138.226.196.0/22 invalid
v4 138.226.64.0/20 valid
v4 139.181.26.0/24 unknown
v4 140.89.64.0/18 unknown
v4 162.218.89.0/24 valid
v4 169.230.76.0/24 unknown
v4 169.230.77.0/24 unknown
v4 185.201.41.0/24 valid
v4 185.201.43.0/24 valid
v4 185.22.43.0/24 valid
v4 192.189.161.0/24 unknown
v4 192.206.19.0/24 unknown
v4 192.70.238.0/24 unknown
v4 198.145.106.0/24 valid
v4 198.202.219.0/24 unknown
v4 204.145.245.0/24 unknown
v4 209.23.201.0/24 valid
v4 209.23.253.0/24 valid
v4 216.170.120.0/24 valid
v4 24.104.138.0/23 valid
v4 24.104.150.0/24 valid
v4 24.104.72.0/24 valid
v4 24.104.73.0/24 valid
v4 36.255.215.0/24 valid
v4 45.67.141.0/24 valid
v4 5.182.186.0/24 valid
v4 5.182.193.0/24 valid
v4 5.182.194.0/24 valid
v4 5.182.195.0/24 valid
v4 50.145.55.0/24 valid
v4 50.200.170.0/24 valid
v4 50.201.171.0/24 valid
v4 50.201.8.0/23 valid
v4 50.204.119.0/24 valid
v4 50.204.137.0/24 valid
v4 50.205.226.0/24 valid
v4 50.206.118.0/24 valid
v4 50.206.120.0/23 valid
v4 50.206.219.0/24 valid
v4 50.207.182.0/24 valid
v4 50.207.190.0/24 valid
v4 50.207.216.0/24 valid
v4 50.216.212.0/24 valid

RPKI: rpki.cloudflare.com · 2026-06-17

— Routing status unavailable

Prefix history

Announced prefixes Source: ipdex daily snapshot · sparse rows, value holds until the next change (steps)

Data table

Day	Announced prefixes
2026-06-12	274
2026-06-13	274
2026-06-14	274
2026-06-15	274
2026-06-17	274

Facilities · 1

1 Facilities · 1 Countries

CoreSite - Santa Clara (SV4) Santa Clara

AS topology · Customer cone 176

Providers · 2

AS3356 Level 3 Parent, LLC
AS7922 Comcast Cable Communications, LLC

Peers · 1

AS1000 LINK AMERICAN

Customers · 168

AS10753 Level 3 Parent, LLC
AS1226 California Department of Technology
AS6099 Alameda County Office of Education
AS17035 NBCUniversal
AS23338 DCS Pacific Star, LLC
AS40620 QIAGEN Redwood City, Inc.

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