203.147.112.0/20 - SYNAPSE (AS7511)
CIDR
203.147.112.0/20
IP Version
IPv4
Addresses
4K
Mask
/20 (255.255.240.0)
Country
🇯🇵 Japan
City
Kagoshima (Matsubaracho)
RIR
APNIC
Status
allocated
Allocated
2011-04-11
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
Swipe sideways to see all columns →
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 203.147.112.0/20 | AS7511 SYNAPSE SYNAPSE Co.,Ltd. | Valid | Other IRR | 2026-10-11 |
Origin ASN
AS7511
SYNAPSE SYNAPSE Co.,Ltd.
Related Prefixes
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/203.147.112.0/20Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/203.147.112.0/20" | jq
External Links