$ query “AS20214” --type=asn → 1 result(s)

AS20214 · COMCAST-20214

Comcast Cable Communications LLC

AS20214 is owned by Comcast Cable Communications LLC and is a mid-size transit provider, established in the United States in 2001. The system announces a solid 136 192 IPv4 addresses, including a /16, and supports IPv6. Most of its address space is geolocated to the United States. This AS's prefix announcements have been recently modified.

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
April 06, 2001
Last Changed
March 04, 2026
Last Seen
April 30, 2026 (active)

Prefix Summary

IPv4 Prefixes (raw / aggregated)
22 / 20
IPv6 Prefixes (raw / aggregated)
104 / 96
IPv4 Addresses
136 192
Largest IPv4 Prefix
/16 (65 536 addresses)
Largest IPv6 Prefix
/47
Geolocated Countries
🇺🇸 United States (267 264 IPs)
Prefix Changed
May 01, 2026

Reputation

Reputation
Pristine — 0 flagged IPs

Connectivity Summary

Upstream Providers
2 upstreams providing transit
Downstream Customers
19 downstreams buying transit
Unclassified
1 unclassified BGP neighbor
Degree
22 unique BGP neighbors
Reach
21 networks in customer cone

Upstream Providers (2)

  • AS3356 — LEVEL3 (Tier-1 transit)
  • AS7922 — COMCAST-7922

Prefix Lists

IPv4 Prefixes (22 total)

  • 168.221.0.0/16 (65 536 addresses (/16 prefix))
  • 147.137.0.0/16 (65 536 addresses (/16 prefix))
  • 50.205.246.0/23 (512 addresses (/23 prefix))
  • 50.233.138.0/23 (512 addresses (/23 prefix))
  • 50.224.22.0/24 (256 addresses (/24 prefix))
  • 50.224.86.0/24 (256 addresses (/24 prefix))
  • 50.202.167.0/24 (256 addresses (/24 prefix))
  • 50.216.237.0/24 (256 addresses (/24 prefix))
  • 50.222.172.0/24 (256 addresses (/24 prefix))
  • 50.224.11.0/24 (256 addresses (/24 prefix))
  • 50.150.146.0/24 (256 addresses (/24 prefix))
  • 50.202.227.0/24 (256 addresses (/24 prefix))
  • 50.224.249.0/24 (256 addresses (/24 prefix))
  • 50.229.72.0/24 (256 addresses (/24 prefix))
  • 50.202.4.0/24 (256 addresses (/24 prefix))
  • 50.237.82.0/24 (256 addresses (/24 prefix))
  • 50.237.224.0/24 (256 addresses (/24 prefix))
  • 141.193.53.0/24 (256 addresses (/24 prefix))
  • 50.200.159.0/24 (256 addresses (/24 prefix))
  • 50.200.25.0/24 (256 addresses (/24 prefix))

IPv6 Prefixes (104 total)

  • 2001:559:ec::/47
  • 2001:559:5ae::/47
  • 2001:559:81d2::/47
  • 2001:559:85be::/47
  • 2001:559:8750::/47
  • 2001:559:c4f0::/47
  • 2001:559:c25a::/47
  • 2001:559:c0d0::/47
  • 2001:559:8334::/48
  • 2001:559:c0ba::/48
  • 2001:559:142::/48
  • 2001:559:160::/48
  • 2001:559:168::/48
  • 2001:559:18b::/48
  • 2001:559:1ac::/48
  • 2001:559:1cb::/48
  • 2001:559:1cd::/48
  • 2001:559:205::/48
  • 2001:559:232::/48
  • 2001:559:281::/48
  • 2001:559:2a0::/48
  • 2001:559:2cf::/48
  • 2001:559:2f8::/48
  • 2001:559:386::/48
  • 2001:559:3e6::/48
  • 2001:559:401::/48
  • 2001:559:463::/48
  • 2001:559:478::/48
  • 2001:559:4d4::/48
  • 2001:559:4ef::/48
  • 2001:559:514::/48
  • 2001:559:554::/48
  • 2001:559:8425::/48
  • 2001:559:71c::/48
  • 2001:559:77e::/48
  • 2001:559:7c7::/48
  • 2001:559:7c9::/48
  • 2001:559:804f::/48
  • 2001:559:8075::/48
  • 2001:559:8077::/48
  • 2001:559:8106::/48
  • 2001:559:8112::/48
  • 2001:559:813f::/48
  • 2001:559:815b::/48
  • 2001:559:816f::/48
  • 2001:559:81d1::/48
  • 2001:559:821d::/48
  • 2001:559:8332::/48
  • 2001:559:11c::/48
  • 2001:559:8357::/48
  • and 46 more