203.131.192.0/20
🇯🇵CIDR
203.131.192.0/20
IP Version
IPv4
Addresses
4K
Mask
/20 (255.255.240.0)
Country
🇯🇵 Japan
City
Shinjuku
RIR
APNIC
Status
allocated
Allocated
1/16/2001
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 203.131.192.0/20 | AS17707DATAHOTEL-JP - AS for DATAHOTEL, which is one of iDC in Japan, | Valid | APNICRADB | 5/31/2026 |
RPKI ROAs
| Prefix | Origin | Max Length | Trust Anchor |
|---|---|---|---|
| 203.131.192.0/20 | AS17707 | /24 | apnic |
More Specific Prefixes
| Prefix | AS | Country | Status |
|---|---|---|---|
| 203.131.200.0/21 | 🇯🇵JP | assigned | |
| 203.131.192.192/26 | 🇯🇵JP | assigned |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/203.131.192.0/20Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/203.131.192.0/20" | jq
External Links