$ query “AS33662” --type=asn → 1 result(s)

AS33662 · CMCS

Comcast Cable Communications LLC

AS33662 is owned by Comcast Cable Communications LLC and is a mid-size transit provider, based in the United States since 2005. The system announces 4 352 IPv4 addresses, and supports IPv6. The bulk of its IP address space is in the United States. Prefix announcements for this AS were recently updated.

  • Top 5% — Top 5% of all autonomous systems by reach and degree

Basic Information

Country
🇺🇸 United States
Category
Internet Service Provider
Network Role
Mid-size Transit
Data Origin
Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
Registered
February 16, 2005
Last Changed
March 04, 2026
Last Seen
April 29, 2026 (active)

Prefix Summary

IPv4 Prefixes (raw / aggregated)
17 / 17
IPv6 Prefixes (raw / aggregated)
108 / 101
IPv4 Addresses
4 352
Largest IPv4 Prefix
/24 (256 addresses)
Largest IPv6 Prefix
/47
Geolocated Countries
🇺🇸 United States (4 352 IPs)
Prefix Changed
April 28, 2026

Reputation

Reputation
Pristine — 0 flagged IPs

Connectivity Summary

Upstream Providers
3 upstreams providing transit
Downstream Customers
54 downstreams buying transit
Unclassified
2 unclassified BGP neighbors
Degree
59 unique BGP neighbors
Reach
71 networks in customer cone

Upstream Providers (3)

Prefix Lists

IPv4 Prefixes (17 total)

  • 24.104.75.0/24 (256 addresses (/24 prefix))
  • 50.201.112.0/24 (256 addresses (/24 prefix))
  • 50.217.18.0/24 (256 addresses (/24 prefix))
  • 50.217.175.0/24 (256 addresses (/24 prefix))
  • 50.220.66.0/24 (256 addresses (/24 prefix))
  • 50.228.10.0/24 (256 addresses (/24 prefix))
  • 50.228.194.0/24 (256 addresses (/24 prefix))
  • 50.231.217.0/24 (256 addresses (/24 prefix))
  • 50.232.18.0/24 (256 addresses (/24 prefix))
  • 50.232.206.0/24 (256 addresses (/24 prefix))
  • 50.234.8.0/24 (256 addresses (/24 prefix))
  • 50.235.195.0/24 (256 addresses (/24 prefix))
  • 50.235.196.0/24 (256 addresses (/24 prefix))
  • 64.189.25.0/24 (256 addresses (/24 prefix))
  • 107.1.148.0/24 (256 addresses (/24 prefix))
  • 198.46.65.0/24 (256 addresses (/24 prefix))
  • 208.110.207.0/24 (256 addresses (/24 prefix))

IPv6 Prefixes (108 total)

  • 2001:559:852e::/47
  • 2001:559:85ce::/47
  • 2001:559:86d6::/47
  • 2001:559:c020::/47
  • 2001:559:c1fe::/47
  • 2001:559:c37e::/47
  • 2001:559:c256::/47
  • 2001:559:85d0::/48
  • 2001:559:86ae::/48
  • 2001:559:154::/48
  • 2001:559:182::/48
  • 2001:559:18c::/48
  • 2001:559:1b3::/48
  • 2001:559:1e9::/48
  • 2001:559:1f2::/48
  • 2001:559:256::/48
  • 2001:559:265::/48
  • 2001:559:287::/48
  • 2001:559:334::/48
  • 2001:559:351::/48
  • 2001:559:38d::/48
  • 2001:559:392::/48
  • 2001:559:397::/48
  • 2001:559:398::/48
  • 2001:559:3e3::/48
  • 2001:559:3e4::/48
  • 2001:559:3ed::/48
  • 2001:559:4b7::/48
  • 2001:559:4fe::/48
  • 2001:559:85f8::/48
  • 2001:559:728::/48
  • 2001:559:8012::/48
  • 2001:559:804d::/48
  • 2001:559:8156::/48
  • 2001:559:8168::/48
  • 2001:559:8172::/48
  • 2001:559:81c9::/48
  • 2001:559:85e9::/48
  • 2001:559:8311::/48
  • 2001:559:83af::/48
  • 2001:559:83c1::/48
  • 2001:559:83de::/48
  • 2001:559:83fa::/48
  • 2001:559:8424::/48
  • 2001:559:8472::/48
  • 2001:559:84b7::/48
  • 2001:559:852d::/48
  • 2001:559:8544::/48
  • 2001:559:857b::/48
  • 2001:559:85ac::/48
  • and 51 more