AS7922 Comcast
AS7922 is operated by Comcast and registered with ARIN (US) since 1997-02-14.
It announces 428 IPv4 and 5 IPv6 prefixes, 99% of them RPKI valid.
RIPE RIS sees 28 upstream and peer networks and 113 downstream networks next to it.
PeeringDB lists it as a Cable/DSL/ISP network at 27 facilities. Its peering policy is selective.
| Name | Comcast |
|---|---|
| Registry handle | COMCAST-7922 |
| Registry (RIR) | ARIN |
| Country | United States (US) |
| Delegated on | 1997-02-14 |
| Network type | Cable/DSL/ISP, North America |
| Peering policy | Selective |
| IRR as-set | RADB::AS-COMCAST-IBONE |
| Prefixes (IPv4 / IPv6) | 428 / 5 |
| RPKI valid | 99% (430 / 433) |
| Upstreams and peers | 28 |
| Downstream networks | 113 |
| Website | corporate.comcast.com |
Routing health
- AS7922 announces 428 IPv4 and 5 IPv6 prefixes.
- 1 of 433 announced prefixes are RPKI invalid: 50.200.40.0/24.
- 430 of 433 announced prefixes are RPKI valid.
- 2 announced prefixes are not covered by a ROA of AS7922 (they may have none, or another network’s).
- 28 upstreams and peers, 113 downstream networks seen.
For every check with the fix (IRR route objects, the RPKI state of each route, reverse DNS and the registration), run the full network report.
Announced prefixes 433
- 23.24.0.0/15
- 23.30.0.0/15
- 23.68.0.0/14
- 24.0.0.0/12
- 24.16.0.0/13
- 24.30.0.0/17
- 24.34.0.0/16
- 24.40.0.0/18
- 24.40.64.0/20
- 24.60.0.0/14
- 24.91.0.0/16
- 24.98.0.0/15
- 24.104.0.0/17
- 24.104.128.0/19
- 24.118.0.0/16
- 24.124.128.0/17
- 24.125.0.0/16
- 24.126.0.0/15
- 24.128.0.0/16
- 24.129.0.0/17
- 24.130.0.0/15
- 24.147.0.0/16
- 24.153.64.0/19
- 24.218.0.0/16
- 24.245.0.0/18
- 48.44.1.0/24
- 48.44.2.0/24
- 48.44.4.0/24
- 48.44.6.0/23
- 48.44.8.0/23
- 48.44.28.0/22
- 48.44.32.0/23
- 48.44.34.0/24
- 48.44.36.0/22
- 48.44.51.0/24
- 48.44.52.0/23
- 48.44.54.0/24
- 48.44.64.0/22
- 48.44.68.0/23
- 48.44.71.0/24
- 48.44.72.0/21
- 48.44.81.0/24
- 48.44.82.0/23
- 48.44.84.0/24
- 48.44.86.0/23
- 48.44.88.0/23
- 48.44.92.0/22
- 48.44.96.0/22
- 48.44.101.0/24
- 48.44.102.0/23
- 48.44.104.0/22
- 48.44.109.0/24
- 48.44.110.0/23
- 48.44.113.0/24
- 48.44.114.0/23
- 48.44.117.0/24
- 48.44.118.0/23
- 48.44.122.0/23
- 48.44.124.0/24
- 48.44.126.0/23
- 48.44.160.0/20
- 48.44.192.0/21
- 48.44.200.0/22
- 48.44.204.0/22
- 48.44.208.0/22
- 48.44.212.0/22
- 48.44.216.0/22
- 48.44.220.0/22
- 48.45.0.0/19
- 48.45.0.0/23
- 48.45.2.0/23
- 48.45.4.0/23
- 48.45.6.0/23
- 48.45.8.0/22
- 48.45.12.0/23
- 48.45.14.0/23
- 48.45.16.0/22
- 48.45.20.0/22
- 48.45.24.0/21
- 48.45.32.0/20
- 48.45.32.0/23
- 48.45.34.0/23
- 48.45.36.0/23
- 48.45.38.0/23
- 48.45.40.0/21
- 48.45.48.0/20
- 48.45.64.0/18
- 48.45.64.0/23
- 48.45.66.0/23
- 48.45.68.0/22
- 48.45.72.0/22
- 48.45.76.0/23
- 48.45.78.0/23
- 48.45.80.0/21
- 48.45.88.0/21
- 48.45.96.0/21
- 48.45.104.0/21
- 48.45.112.0/21
- 48.45.120.0/21
- 48.45.128.0/24
Showing the first 100.
RPKI problems
- Invalid 50.200.40.0/24
Upstreams and peers 28
The networks RIPE RIS sees next to AS7922 in BGP paths, the most visible first.
Peering
Peering policy: Selective. Suggested max-prefix limits: 50,000 IPv4, 20,000 IPv6. PeeringDB record
| Facility | City | Country |
|---|---|---|
| CoreSite - Denver (DE1) | Denver | US |
| CoreSite - Los Angeles (LA1) One Wilshire | Los Angeles | US |
| Databank Houston West (HOU1) (HOU2) | Houston | US |
| DataBank New York (LGA1) | New York | US |
| DataBank Newark (EWR1) | Newark | US |
| Digital Realty ATL13 - Atlanta | Atlanta | US |
| Digital Realty NYC (111 8th Ave) | New York | US |
| Equinix CH1/CH2/CH4 - Chicago | Chicago | US |
| Equinix DA1 - Dallas | Dallas | US |
| Equinix DC1-DC15,DC21-DC22 - Ashburn | Ashburn | US |
| Equinix LA1 - Los Angeles | Los Angeles | US |
| Equinix MI1 - Miami, NOTA | Miami | US |
| Equinix SE2/SE3 - Seattle | Seattle | US |
| Equinix SV1/SV5/SV10 - Silicon Valley, San Jose | San Jose | US |
| Equinix SV8 - Silicon Valley, Palo Alto | Palo Alto | US |
| H5 Data Centers Atlanta | Atlanta | US |
| Level(3) Chicago (Kingsbury) | Chicago | US |
| Level(3) Dallas | Dallas | US |
| Level(3) Miami (5th St) | Miami | US |
| Level(3) Nashville (Sidco Drive) | Nashville | US |
| Level(3) Sunnyvale | Sunnyvale | US |
| Lumen Jacksonville | Jacksonville | US |
| Lumen New York | New York | US |
| Lumen Philadelphia | Philadelphia | US |
| Lumen Pittsburgh | Pittsburgh | US |
| Lumen Portland | Portland | US |
| Markley Group One Summer Street Boston | Boston | US |
More about AS7922
Sources: RIR delegation data and PeeringDB (updated daily); routing from RIPEstat (RIPE NCC RIS and RPKI), refreshed daily. Routing data from 2026-11-12 15:43 UTC. The country is where the AS number was registered, not necessarily where the network operates.