2602:81c:c000::/40 - (AS31991)
CIDR
2602:81c:c000::/40
IP Version
IPv6
Addresses
309.4Y
Mask
/40
Country
🇺🇸 United States
City
Fort Collins
RIR
ARIN
Status
allocated
Allocated
2025-11-19
Origin ASN
AS31991
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/2602:81c:c000::/40Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/2602:81c:c000::/40" | jq
External Links