$ query “AS7922” --type=asn → 1 result(s)

AS7922 · COMCAST-7922 (COMCAST-7922 📺)

Comcast Cable Communications LLC

AS7922 is owned by Comcast Cable Communications LLC and is a major transit provider, registered in the United States since 1997. The system announces a whopping 68.1 million IPv4 addresses (1.84% of routable IPv4 space), including a /8, and supports IPv6. Its primary geographic footprint is in the United States, with additional presence in Australia. This AS's prefix announcements have been recently modified.

  • Top 5% — Top 5% of all autonomous systems by reach and degree
  • Space Overlord — Over 10 million IPv4 addresses
  • #38 by Reach — Top 100 by customer cone size
  • #10 in United States — Top 10 by reach within country
  • Pioneer — Registered before the year 2000

Basic Information

Country
🇺🇸 United States
Category
Internet Service Provider
Network Role
Major Transit
Data Origin
Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
Registered
February 14, 1997
Last Changed
March 04, 2026
Last Seen
April 18, 2026 (active)

Prefix Summary

IPv4 Prefixes (raw / aggregated)
231 / 205
IPv6 Prefixes (raw / aggregated)
5 / 5
IPv4 Addresses
68 082 432
Largest IPv4 Prefix
/8 (16 777 216 addresses)
Largest IPv6 Prefix
/20
Geolocated Countries
🇺🇸 United States (120 269 328 IPs), 🇦🇺 Australia (2 109 440 IPs)
Prefix Changed
April 17, 2026

Reputation

Reputation
Good — 769 flagged IPs out of 68 082 432 total (0.00%)
Open Proxies
18 known open proxies in this network

Connectivity Summary

Upstream Providers
2 upstreams providing transit
Peers
65 networks exchanging traffic without transit
Downstream Customers
105 downstreams buying transit
Unclassified
7 unclassified BGP neighbors
Degree
179 unique BGP neighbors
Reach
42 256 networks in customer cone

Upstream Providers (2)

  • AS3356 — LEVEL3 (Tier-1 transit)
  • AS5511 — OPENTRANSIT (Tier-1 transit)

Prefix Lists

IPv4 Prefixes (231 total)

  • 73.0.0.0/8 (16 777 216 addresses (/8 prefix))
  • 50.128.0.0/9 (8 388 608 addresses (/9 prefix))
  • 98.192.0.0/10 (4 194 304 addresses (/10 prefix))
  • 174.160.0.0/11 (2 097 152 addresses (/11 prefix))
  • 67.160.0.0/11 (2 097 152 addresses (/11 prefix))
  • 68.32.0.0/11 (2 097 152 addresses (/11 prefix))
  • 76.96.0.0/11 (2 097 152 addresses (/11 prefix))
  • 76.128.0.0/11 (2 097 152 addresses (/11 prefix))
  • 96.64.0.0/11 (2 097 152 addresses (/11 prefix))
  • 96.128.0.0/11 (2 097 152 addresses (/11 prefix))
  • 96.192.0.0/11 (2 097 152 addresses (/11 prefix))
  • 98.32.0.0/11 (2 097 152 addresses (/11 prefix))
  • 71.192.0.0/12 (1 048 576 addresses (/12 prefix))
  • 74.16.0.0/12 (1 048 576 addresses (/12 prefix))
  • 24.0.0.0/12 (1 048 576 addresses (/12 prefix))
  • 174.48.0.0/12 (1 048 576 addresses (/12 prefix))
  • 184.112.0.0/12 (1 048 576 addresses (/12 prefix))
  • 69.240.0.0/12 (1 048 576 addresses (/12 prefix))
  • 96.96.0.0/12 (1 048 576 addresses (/12 prefix))
  • 71.224.0.0/12 (1 048 576 addresses (/12 prefix))
  • 76.16.0.0/12 (1 048 576 addresses (/12 prefix))
  • 173.160.0.0/13 (524 288 addresses (/13 prefix))
  • 75.64.0.0/13 (524 288 addresses (/13 prefix))
  • 75.144.0.0/13 (524 288 addresses (/13 prefix))
  • 24.16.0.0/13 (524 288 addresses (/13 prefix))
  • 71.56.0.0/13 (524 288 addresses (/13 prefix))
  • 69.136.0.0/13 (524 288 addresses (/13 prefix))
  • 96.112.0.0/13 (524 288 addresses (/13 prefix))
  • 173.8.0.0/13 (524 288 addresses (/13 prefix))
  • 68.80.0.0/13 (524 288 addresses (/13 prefix))
  • 70.88.0.0/14 (262 144 addresses (/14 prefix))
  • 107.0.0.0/14 (262 144 addresses (/14 prefix))
  • 50.76.0.0/14 (262 144 addresses (/14 prefix))
  • 74.92.0.0/14 (262 144 addresses (/14 prefix))
  • 71.24.0.0/14 (262 144 addresses (/14 prefix))
  • 162.148.0.0/14 (262 144 addresses (/14 prefix))
  • 184.108.0.0/14 (262 144 addresses (/14 prefix))
  • 96.120.0.0/14 (262 144 addresses (/14 prefix))
  • 24.60.0.0/14 (262 144 addresses (/14 prefix))
  • 23.68.0.0/14 (262 144 addresses (/14 prefix))
  • 24.98.0.0/15 (131 072 addresses (/15 prefix))
  • 75.72.0.0/15 (131 072 addresses (/15 prefix))
  • 107.4.0.0/15 (131 072 addresses (/15 prefix))
  • 69.180.0.0/15 (131 072 addresses (/15 prefix))
  • 24.126.0.0/15 (131 072 addresses (/15 prefix))
  • 66.176.0.0/15 (131 072 addresses (/15 prefix))
  • 66.30.0.0/15 (131 072 addresses (/15 prefix))
  • 23.24.0.0/15 (131 072 addresses (/15 prefix))
  • 24.130.0.0/15 (131 072 addresses (/15 prefix))
  • 23.30.0.0/15 (131 072 addresses (/15 prefix))
  • and 155 more

IPv6 Prefixes (5 total)

  • 2601::/20
  • 2603:2000::/20
  • 2603:3000::/24
  • 2001:558::/29
  • 2620:fd:8000::/48