AS20001 Charter Communications (20001)
AS20001 is operated by Charter Communications (20001) and registered with ARIN (US) since 2001-03-13.
It announces 599 IPv4 and 21 IPv6 prefixes, 88% of them RPKI valid.
RIPE RIS sees 5 upstream and peer networks and 147 downstream networks next to it.
PeeringDB lists it as a Cable/DSL/ISP network at 1 internet exchange and 1 facility. Its peering policy is selective.
| Name | Charter Communications (20001) |
|---|---|
| Registry handle | TWC-20001-PACWEST |
| Registry (RIR) | ARIN |
| Country | United States (US) |
| Delegated on | 2001-03-13 |
| Network type | Cable/DSL/ISP, Regional |
| Peering policy | Selective |
| IRR as-set | RADB::AS-ROADRUNNER |
| Prefixes (IPv4 / IPv6) | 599 / 21 |
| RPKI valid | 88% (546 / 620) |
| Upstreams and peers | 5 |
| Downstream networks | 147 |
| Website | spectrum.com |
Routing health
- AS20001 announces 599 IPv4 and 21 IPv6 prefixes.
- 1 of 620 announced prefixes are RPKI invalid: 2600:5c00:11a3::/48.
- 546 of 620 announced prefixes are RPKI valid.
- 73 announced prefixes are not covered by a ROA of AS20001 (they may have none, or another network’s).
- 5 upstreams and peers, 147 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 620
- 23.94.90.0/24
- 23.94.106.0/24
- 23.94.109.0/24
- 23.94.135.0/24
- 23.142.228.0/24
- 23.240.0.0/14
- 24.24.128.0/17
- 24.25.192.0/19
- 24.25.224.0/19
- 24.30.128.0/18
- 24.43.0.0/16
- 24.43.192.0/19
- 24.43.224.0/20
- 24.94.0.0/19
- 24.94.64.0/19
- 24.123.116.0/24
- 24.123.117.0/24
- 24.123.120.0/24
- 24.160.32.0/20
- 24.160.48.0/20
- 24.165.0.0/18
- 24.165.64.0/19
- 24.165.64.0/20
- 24.199.0.0/18
- 35.132.40.0/21
- 40.183.128.0/21
- 45.40.123.0/24
- 45.48.0.0/14
- 45.59.192.0/18
- 45.148.135.0/24
- 47.231.64.0/20
- 47.231.128.0/22
- 47.231.144.0/23
- 47.231.146.0/23
- 50.113.0.0/16
- 50.113.0.0/18
- 63.243.199.0/24
- 64.105.74.0/23
- 64.105.98.0/23
- 64.105.109.0/24
- 64.105.110.0/23
- 64.105.125.0/24
- 64.105.126.0/23
- 64.105.128.0/22
- 64.105.133.0/24
- 64.105.134.0/23
- 64.105.154.0/23
- 64.105.160.0/23
- 64.105.164.0/22
- 64.105.168.0/22
- 64.105.174.0/23
- 64.105.176.0/23
- 64.105.180.0/22
- 64.105.184.0/22
- 64.105.190.0/23
- 64.105.192.0/22
- 64.105.200.0/23
- 64.105.206.0/23
- 64.105.248.0/22
- 64.105.252.0/23
- 64.183.0.0/17
- 64.183.152.0/24
- 64.183.156.0/23
- 64.183.168.0/22
- 64.183.172.0/22
- 65.28.212.0/24
- 65.185.254.0/24
- 65.185.255.0/24
- 66.8.128.0/17
- 66.17.129.0/24
- 66.17.172.0/23
- 66.17.174.0/23
- 66.17.184.0/24
- 66.27.0.0/16
- 66.27.32.0/20
- 66.27.192.0/19
- 66.53.160.0/22
- 66.74.0.0/15
- 66.74.112.0/20
- 66.75.0.0/16
- 66.75.64.0/18
- 66.91.0.0/16
- 66.91.224.0/19
- 66.146.237.0/24
- 66.167.12.0/23
- 66.234.230.0/23
- 66.234.236.0/23
- 66.234.240.0/23
- 66.234.248.0/23
- 67.49.0.0/16
- 67.49.128.0/18
- 67.52.64.0/19
- 67.52.96.0/19
- 67.52.128.0/18
- 67.53.32.0/19
- 67.53.112.0/20
- 67.53.192.0/19
- 67.103.24.0/23
- 67.103.27.0/24
- 67.103.194.0/23
Showing the first 100.
RPKI problems
- Invalid 2600:5c00:11a3::/48
Upstreams and peers 5
The networks RIPE RIS sees next to AS20001 in BGP paths, the most visible first.
Peering
Peering policy: Selective. Suggested max-prefix limits: 200 IPv4, 100 IPv6. PeeringDB record
| Exchange | Ports | Speed | Route server |
|---|---|---|---|
| DRF IX | 1 | 100G | No |
| Facility | City | Country |
|---|---|---|
| DRFortress HNL | Honolulu | US |
More about AS20001
Sources: RIR delegation data and PeeringDB (updated daily); routing from RIPEstat (RIPE NCC RIS and RPKI), refreshed daily. Routing data from 2026-11-13 21:21 UTC. The country is where the AS number was registered, not necessarily where the network operates.