103.240.20.0/22
🇯🇵CIDR
103.240.20.0/22
IP Version
IPv4
Addresses
1K
Mask
/22 (255.255.252.0)
Country
🇯🇵 Japan
City
Tsukuba (Umezono)
RIR
APNIC
Status
allocated
Allocated
8/8/2013
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 103.240.20.0/22 | AS2519VECTANT - ARTERIA Networks Corporation | Valid | APNICRADB | 5/31/2026 |
RPKI ROAs
| Prefix | Origin | Max Length | Trust Anchor |
|---|---|---|---|
| 103.240.20.0/22 | AS2519 | /22 | apnic |
More Specific Prefixes
| Prefix | AS | Country | Status |
|---|---|---|---|
| 103.240.20.0/24 | 🇯🇵JP | assigned | |
| 103.240.21.0/24 | 🇯🇵JP | assigned | |
| 103.240.22.0/24 | 🇯🇵JP | assigned | |
| 103.240.23.0/24 | 🇯🇵JP | assigned |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/103.240.20.0/22Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/103.240.20.0/22" | jq
External Links