103.31.12.0/22
🇯🇵CIDR
103.31.12.0/22
IP Version
IPv4
Addresses
1K
Mask
/22 (255.255.252.0)
Country
🇯🇵 Japan
City
Minato-ku
RIR
APNIC
Status
allocated
Allocated
11/19/2012
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 103.31.12.0/22 | AS55902TS-NET - TS-NET of TOSET, Inc. in Japan | Valid | APNIC | 5/31/2026 |
Covering Prefix
4 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 103.31.12.0/24 | AS55902TS-NET - TS-NET of TOSET, Inc. in Japan | Valid | — | 5/31/2026 |
| 103.31.13.0/24 | AS55902TS-NET - TS-NET of TOSET, Inc. in Japan | Valid | — | 5/31/2026 |
| 103.31.14.0/24 | AS55902TS-NET - TS-NET of TOSET, Inc. in Japan | Valid | — | 5/31/2026 |
| 103.31.15.0/24 | AS55902TS-NET - TS-NET of TOSET, Inc. in Japan | Valid | — | 5/31/2026 |
RPKI ROAs
| Prefix | Origin | Max Length | Trust Anchor |
|---|---|---|---|
| 103.31.12.0/22 | AS55902 | /22 | apnic |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS55902 | APNIC | MAINT-TSNETWORKS1-JP | 11/5/2025 |
More Specific Prefixes
| Prefix | AS | Country | Status |
|---|---|---|---|
| 103.31.15.0/24 | AS55902 | 🇯🇵JP | assigned |
| 103.31.12.0/24 | AS55902 | 🇯🇵JP | assigned |
| 103.31.13.0/24 | AS55902 | 🇯🇵JP | assigned |
| 103.31.14.0/24 | AS55902 | 🇯🇵JP | assigned |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/103.31.12.0/22Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/103.31.12.0/22" | jq
External Links