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Network

AS33651

United States

Comcast Cable Communications, LLC

Comcast Cable Communications announces 223 IPv4 prefixes (2.3M addresses) and 192 IPv6 prefixes from the United States. 97% of them are covered by valid RPKI records.

Prefixes

223 · 192

IPv4 · IPv6

Address space

2.3M

IPv4 addresses · 8.5M IPv6 /48s

RPKI

97% valid

4 invalid · 10 without a record

Peering

Restrictive

0 exchanges · 1 facility

Where it is

1 facility with known locations

Details

Network

Name
Comcast Cable Communications, LLC
Type
Cable/DSL/ISP
Country
United StatesUnited States
Website
corporate.comcast.com
UsersCloudflare Radar's estimate of people who reach the internet through this network.
About 3.3K

Connectivity

Cloudflare Radar
UpstreamsNetworks this one buys transit from.
Lumen AS3356Comcast
PeersNetworks it exchanges traffic with directly, without paying either way.
6
CustomersNetworks that buy transit from it.
154

Routing security

ASPAAn RPKI record listing the only networks allowed to be its upstream providers, so routers can reject leaked or forged paths.
Not published
RPKI coverageShare of its announcements that a signed record (ROA) authorizes.
401 of 415 valid
IncidentsPossible BGP hijacks (high-confidence detections) and route leaks involving this network in the last 30 days, from Cloudflare Radar.
12 hijacks by this network

AS33651 on Cloudflare Radar →PeeringDB →

Largest prefixes

415 announcements in all

IPv4

223
  1. 24.4.0.0/15RPKI valid
  2. 76.102.0.0/15RPKI valid
  3. 76.132.0.0/15RPKI valid
  4. 24.6.0.0/16RPKI valid
  5. 24.130.0.0/16RPKI valid
  6. 67.180.0.0/16RPKI valid
  7. 67.188.0.0/16RPKI valid
  8. 69.181.0.0/16RPKI valid
  9. 71.198.0.0/16RPKI valid
  10. 71.202.0.0/16RPKI valid
  11. 76.126.0.0/16RPKI valid
  12. 98.35.0.0/16RPKI valid
  13. 98.37.0.0/16RPKI valid
  14. 98.42.0.0/16RPKI valid
  15. 98.45.0.0/16RPKI valid
  16. 98.47.0.0/16RPKI valid
  17. 98.51.0.0/16RPKI valid
  18. 174.160.0.0/16RPKI valid
  19. 24.7.0.0/17RPKI valid
  20. 67.164.0.0/17RPKI valid
  21. 67.169.0.0/17RPKI valid
  22. 76.21.0.0/17RPKI valid
  23. 98.33.0.0/17RPKI valid
  24. 173.164.128.0/17RPKI valid