199.123.72.0/21
🇺🇸CIDR
199.123.72.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
Country
🇺🇸 United States
City
Sierra Vista (Fort Huachuca)
RIR
RIPE
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 199.123.72.0/21 | AS721DNIC-ASBLK-00721-00726 - United States Department of Defense (DoD) | No ROA | — | 5/31/2026 |
Covering Prefix
3 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 199.123.72.0/22 | AS1540DNIC-ASBLK-01534-01546 - Headquarters, USAISC | No ROA | — | 5/31/2026 |
| 199.123.78.0/23 | AS1540DNIC-ASBLK-01534-01546 - Headquarters, USAISC | No ROA | — | 5/31/2026 |
| 199.123.76.0/24 | AS1590DNIC-ASBLK-01550-01601 - United States Department of Defense (DoD) | No ROA | — | 5/31/2026 |
More Specific Prefixes
| Prefix | AS | Country | Status |
|---|---|---|---|
| 199.123.72.0/22 | AS1540 | 🇺🇸US | allocated |
| 199.123.76.0/24 | AS1590 | 🇺🇸US | allocated |
| 199.123.78.0/24 | 🇺🇸US | allocated | |
| 199.123.77.0/24 | 🇺🇸US | allocated | |
| 199.123.79.0/24 | 🇺🇸US | allocated |
Geolocation
Country🇺🇸United StatesUS
RegionArizona
CitySierra Vista (Fort Huachuca)
Coordinates31.5552, -110.3500 ↗
API
Open https://api.ipctl.io/v1/prefix/199.123.72.0/21Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/199.123.72.0/21" | jq
External Links