203.104.128.0/20
🇯🇵CIDR
203.104.128.0/20
IP Version
IPv4
Addresses
4K
Mask
/20 (255.255.240.0)
Country
🇯🇵 Japan
City
Kyoto
RIR
APNIC
Status
allocated
Allocated
9/6/1999
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 203.104.128.0/20 | AS38631LINE - LY Corporation | Valid | — | 6/1/2026 |
Covering Prefix
16 less-specific announcementsRPKI ROAs
| Prefix | Origin | Max Length | Trust Anchor |
|---|---|---|---|
| 203.104.128.0/20 | AS38631 | /24 | apnic |
Origin ASN
AS38631
LINE - LY Corporation
Geolocation
API
Open https://api.ipctl.io/v1/prefix/203.104.128.0/20Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/203.104.128.0/20" | jq
External Links