192.187.4.0/22
🇯🇵CIDR
192.187.4.0/22
IP Version
IPv4
Addresses
1K
Mask
/22 (255.255.252.0)
Country
🇯🇵 Japan
City
Chiyoda City
RIR
RIPE
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 192.187.4.0/22 | AS721DNIC-ASBLK-00721-00726 - United States Department of Defense (DoD) | No ROA | — | 5/31/2026 |
Covering Prefix
1 less-specific announcement| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 192.187.4.0/24 | AS5860DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | No ROA | — | 5/31/2026 |
More Specific Prefixes
| Prefix | AS | Country | Status |
|---|---|---|---|
| 192.187.5.0/24 | 🇺🇸US | allocated | |
| 192.187.4.0/24 | AS5860 | 🇺🇸US | allocated |
| 192.187.6.0/24 | 🇺🇸US | allocated | |
| 192.187.7.0/24 | 🇺🇸US | allocated |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/192.187.4.0/22Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/192.187.4.0/22" | jq
External Links