2603:2fc0:4100::/40 - Comcast Cable Communications (AS7922)
CIDR
2603:2fc0:4100::/40
IP Version
IPv6
Addresses
309.4Y
Mask
/40
Country
🇺🇸 United States
City
Denver
RIR
ARIN
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
Swipe sideways to see all columns →
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 2603:2fc0:4100::/40 | AS7922 COMCAST-7922 - Comcast Cable Communications, LLC | Valid | - | 2026-10-11 |
Covering Prefix
1 less-specific announcement| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 2603:2000::/20 | AS7922 COMCAST-7922 - Comcast Cable Communications, LLC | Valid | - | 2026-10-11 |
Related Prefixes
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/2603:2fc0:4100::/40Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/2603:2fc0:4100::/40" | jq
External Links