204.57.8.0/21 - OARnet (AS600)
CIDR
204.57.8.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
Country
🇺🇸 United States
City
Cincinnati (West End)
RIR
ARIN
Status
allocated
Allocated
1994-06-07
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
Swipe sideways to see all columns →
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 204.57.8.0/21 | AS600 OARNET-AS - OARnet | No ROA | ARINOther IRR | 2026-10-12 |
Origin ASN
AS600
OARNET-AS - OARnet
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/204.57.8.0/21Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/204.57.8.0/21" | jq
External Links