24.31.104.0/21 - Charter Communications (AS20001)
CIDR
24.31.104.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
Country
🇺🇸 United States
City
Greenwood Village
RIR
ARIN
Status
announced
Allocated
-
AS0 discard ROA - upstream RPKI inconsistency
The only ROA covering this prefix names AS0, which means the issuing RIR has published the prefix as “not routable by any AS” (RFC 6483). If the RIR’s allocation records still point to a live operator, the ROA and the RDAP registration disagree - this is an upstream inconsistency in the issuing RIR’s own publications, not necessarily a hijack.
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
Swipe sideways to see all columns →
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 24.31.104.0/21 | AS20001 TWC-20001-PACWEST - Charter Communications Inc | Invalid | - | 2026-10-11 |
RPKI ROAs
| Prefix | Origin | Max Length | Trust Anchor |
|---|---|---|---|
| 24.31.64.0/18 | AS0 | /18 | arin |
Transfer History
Registry transfers of 24.31.104.0/21, blocks inside it, or blocks containing it.
- 24.31.64.0/18M&A ·
| Date | Resource | From | To | Type |
|---|---|---|---|---|
| 24.31.64.0/18 | M&A |
Related Prefixes
More prefixes of AS20001
All prefixes of AS20001 →Geolocation
Learn more
- RPKI and ROAs explainedWhat RPKI valid, invalid and no ROA mean
- RPKI validatorCheck ROA coverage for any prefix or ASN
- What is BGP?How prefixes are announced and routed
- More-specific prefixesGlossary: covering and more-specific routes
- IPv4 transfers in the ARIN regionWho bought and sold address space recently
API
Open https://api.ipctl.io/v1/prefix/24.31.104.0/21Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/24.31.104.0/21" | jq
External Links