204.56.0.0/21
🇺🇸CIDR
204.56.0.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
Country
🇺🇸 United States
City
Kansas City (South Kansas City)
RIR
ARIN
Status
allocated
Allocated
5/26/1994
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 204.56.0.0/21 | AS3390UMKCNET - University of Missouri - Kansas City | No ROA | RADB | 5/31/2026 |
Geolocation
Country🇺🇸United StatesUS
RegionMissouri
CityKansas City (South Kansas City)
Coordinates39.0336, -94.5763 ↗
API
Open https://api.ipctl.io/v1/prefix/204.56.0.0/21Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/204.56.0.0/21" | jq
External Links