143.203.236.0/22 - (AS21658)
CIDR
143.203.236.0/22
IP Version
IPv4
Addresses
1K
Mask
/22 (255.255.252.0)
Country
🇺🇸 United States
RIR
ARIN
Status
allocated
Allocated
2026-10-05
Origin ASN
AS21658
Related Prefixes
Geolocation
Country🇺🇸United StatesUS
Coordinates37.0902, -95.7129 ↗
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/143.203.236.0/22Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/143.203.236.0/22" | jq
External Links