143.81.0.0/16
🇺🇸CIDR
143.81.0.0/16
IP Version
IPv4
Addresses
65.5K
Mask
/16 (255.255.0.0)
Country
🇺🇸 United States
City
Sierra Vista (Fort Huachuca)
RIR
ARIN
Status
allocated
Allocated
3/26/1990
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 143.81.0.0/16 | AS721DNIC-ASBLK-00721-00726 - United States Department of Defense (DoD) | No ROA | — | 6/1/2026 |
Covering Prefix
30 less-specific announcementsGeolocation
Country🇺🇸United StatesUS
RegionArizona
CitySierra Vista (Fort Huachuca)
Coordinates31.5552, -110.3500 ↗
API
Open https://api.ipctl.io/v1/prefix/143.81.0.0/16Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/143.81.0.0/16" | jq
External Links