163.227.4.0/24 - JPNIC 4Byte ASBLOCK AP (AS131913)
CIDR
163.227.4.0/24
IP Version
IPv4
Addresses
256
Mask
/24 (255.255.255.0)
Country
🇯🇵 Japan
City
Shinagawa
RIR
APNIC
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
Swipe sideways to see all columns →
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 163.227.4.0/24 | AS131913 AS131913-9 - JPNIC-4Byte-ASBLOCK-AP | Valid | Other IRR | 2026-10-12 |
Geolocation
Learn more
- RPKI and ROAs explainedWhat RPKI valid, invalid and no ROA mean
- RPKI validatorCheck ROA coverage for any prefix or ASN
- What is BGP?How prefixes are announced and routed
- More-specific prefixesGlossary: covering and more-specific routes
- IPv4 transfers in the APNIC regionWho bought and sold address space recently
API
Open https://api.ipctl.io/v1/prefix/163.227.4.0/24Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/163.227.4.0/24" | jq
External Links