AS33491 Comcast - Chicago
AS33491 is operated by Comcast - Chicago and registered with ARIN (US) since 2004-12-30.
It announces 82 IPv4 and 200 IPv6 prefixes, 94% of them RPKI valid.
RIPE RIS sees 2 upstream and peer networks and 256 downstream networks next to it.
PeeringDB lists it as a Cable/DSL/ISP network at 1 facility. Its peering policy is restrictive.
| Name | Comcast - Chicago |
|---|---|
| Registry handle | COMCAST-33491 |
| Registry (RIR) | ARIN |
| Country | United States (US) |
| Delegated on | 2004-12-30 |
| Network type | Cable/DSL/ISP, Regional |
| Peering policy | Restrictive |
| Prefixes (IPv4 / IPv6) | 82 / 200 |
| RPKI valid | 94% (266 / 282) |
| Upstreams and peers | 2 |
| Downstream networks | 256 |
Routing health
- AS33491 announces 82 IPv4 and 200 IPv6 prefixes.
- 266 of 282 announced prefixes are RPKI valid.
- 16 announced prefixes are not covered by a ROA of AS33491 (they may have none, or another network’s).
- 2 upstreams and peers, 256 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 282
- 24.104.47.0/24
- 50.201.119.0/24
- 50.201.191.0/24
- 50.202.73.0/24
- 50.203.174.0/24
- 50.203.242.0/24
- 50.204.23.0/24
- 50.204.189.0/24
- 50.205.54.0/23
- 50.205.166.0/24
- 50.206.250.0/24
- 50.207.233.0/24
- 50.216.36.0/24
- 50.216.227.0/24
- 50.217.237.0/24
- 50.218.78.0/24
- 50.219.59.0/24
- 50.219.60.0/24
- 50.220.4.0/22
- 50.220.44.0/24
- 50.220.116.0/24
- 50.220.130.0/23
- 50.220.188.0/24
- 50.224.45.0/24
- 50.224.140.0/23
- 50.224.194.0/24
- 50.225.88.0/24
- 50.227.239.0/24
- 50.228.97.0/24
- 50.229.76.0/22
- 50.230.91.0/24
- 50.231.36.0/24
- 50.231.52.0/24
- 50.231.119.0/24
- 50.231.218.0/24
- 50.231.221.0/24
- 50.232.93.0/24
- 50.232.95.0/24
- 50.232.142.0/24
- 50.232.176.0/24
- 50.232.195.0/24
- 50.233.216.0/24
- 50.233.247.0/24
- 50.234.21.0/24
- 50.234.141.0/24
- 50.235.155.0/24
- 50.237.12.0/24
- 50.237.39.0/24
- 50.237.111.0/24
- 50.237.112.0/24
- 50.238.81.0/24
- 50.239.160.0/24
- 63.174.218.0/24
- 66.240.58.0/24
- 107.0.70.0/24
- 107.0.79.0/24
- 107.0.96.0/23
- 107.0.125.0/24
- 107.0.138.0/24
- 107.0.212.0/24
- 107.0.216.0/24
- 107.1.102.0/23
- 107.1.185.0/24
- 107.1.211.0/24
- 107.1.219.0/24
- 107.1.253.0/24
- 164.68.64.0/20
- 164.68.80.0/21
- 164.68.88.0/22
- 164.68.92.0/23
- 164.68.94.0/23
- 168.102.131.0/24
- 192.137.57.0/24
- 198.179.255.0/24
- 199.68.13.0/24
- 204.68.241.0/24
- 204.152.156.0/24
- 204.194.2.0/24
- 205.167.202.0/23
- 209.23.249.0/24
- 209.51.81.0/24
- 209.153.0.0/18
- 2001:559:1d6::/48
- 2001:559:1e3::/48
- 2001:559:1fc::/48
- 2001:559:1ff::/48
- 2001:559:2a5::/48
- 2001:559:2d1::/48
- 2001:559:2e3::/48
- 2001:559:2f::/48
- 2001:559:3c2::/48
- 2001:559:3c9::/48
- 2001:559:3cb::/48
- 2001:559:3ee::/48
- 2001:559:3fa::/48
- 2001:559:4a2::/48
- 2001:559:4c3::/48
- 2001:559:4fa::/48
- 2001:559:4fb::/48
- 2001:559:4ff::/48
Showing the first 100.
Upstreams and peers 2
The networks RIPE RIS sees next to AS33491 in BGP paths, the most visible first.
Peering
Peering policy: Restrictive. Suggested max-prefix limits: 0 IPv4, 0 IPv6. PeeringDB record
| Facility | City | Country |
|---|---|---|
| Ascent - CH2 | Northlake | US |
More about AS33491
Sources: RIR delegation data and PeeringDB (updated daily); routing from RIPEstat (RIPE NCC RIS and RPKI), refreshed daily. Routing data from 2026-11-14 00:50 UTC. The country is where the AS number was registered, not necessarily where the network operates.