143.254.0.0/16
🇺🇸CIDR
143.254.0.0/16
IP Version
IPv4
Addresses
65.5K
Mask
/16 (255.255.0.0)
Country
🇺🇸 United States
City
San Jose (Central San Jose)
RIR
ARIN
Status
allocated
Allocated
10/26/1990
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 143.254.0.0/16 | AS3734SCCO - Santa Clara County Office of Education | No ROA | RADB | 5/31/2026 |
Geolocation
Country🇺🇸United StatesUS
RegionCalifornia
CitySan Jose (Central San Jose)
Coordinates37.3361, -121.9110 ↗
API
Open https://api.ipctl.io/v1/prefix/143.254.0.0/16Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/143.254.0.0/16" | jq
External Links