203.205.104.0/21
🇯🇵CIDR
203.205.104.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
Country
🇯🇵 Japan
City
Sasebo (4 Chome)
RIR
APNIC
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 203.205.104.0/21 | AS18092CSF - Kyushu Tele Communications Company | No ROA | RADB | 5/31/2026 |
Covering Prefix
1 less-specific announcement| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 203.205.96.0/20 | AS18092CSF - Kyushu Tele Communications Company | No ROA | — | 5/31/2026 |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS18092 | RADB | MAINT-AS7684 | 11/13/2023 |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/203.205.104.0/21Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/203.205.104.0/21" | jq
External Links