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Network

AS33491

United States

Comcast Cable Communications, LLC

Comcast Cable Communications announces 333 IPv4 prefixes (3.1M addresses) and 221 IPv6 prefixes from the United States. 97% of them are covered by valid RPKI records.

Prefixes

333 · 221

IPv4 · IPv6

Address space

3.1M

IPv4 addresses · 17M IPv6 /48s

RPKI

97% valid

0 invalid · 15 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
Registry
ARIN
Registered
Dec 30, 200421 years ago
Abuse contact
abuse@comcast.net

Connectivity

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.
539 of 554 valid

AS33491 on Cloudflare Radar →PeeringDB →

Largest prefixes

554 announcements in all

IPv4

333
  1. 24.12.0.0/14RPKI valid
  2. 68.38.0.0/15RPKI valid
  3. 68.44.0.0/15RPKI valid
  4. 24.1.0.0/16RPKI valid
  5. 67.175.0.0/16RPKI valid
  6. 67.184.0.0/16RPKI valid
  7. 68.50.0.0/16RPKI valid
  8. 71.194.0.0/16RPKI valid
  9. 71.201.0.0/16RPKI valid
  10. 71.239.0.0/16RPKI valid
  11. 76.16.0.0/16RPKI valid
  12. 76.136.0.0/16RPKI valid
  13. 76.141.0.0/16RPKI valid
  14. 76.150.0.0/16RPKI valid
  15. 76.157.0.0/16RPKI valid
  16. 98.46.0.0/16RPKI valid
  17. 98.52.0.0/16RPKI valid
  18. 98.63.0.0/16RPKI valid
  19. 50.195.128.0/17RPKI valid
  20. 67.162.0.0/17RPKI valid
  21. 67.167.0.0/17RPKI valid
  22. 67.173.0.0/17RPKI valid
  23. 67.176.128.0/17RPKI valid
  24. 68.51.0.0/17RPKI valid