203.192.128.0/19 - BGP Prefix
IPv4APNICallocated RPKI Valid
CIDR
203.192.128.0/19
IP Version
IPv4
Addresses
8.1K
Mask
/19 (255.255.224.0)
Country
🇯🇵 Japan
City
Chiyoda City
RIR
APNIC
Status
allocated
Allocated
2000-04-27
Announced BGP Routes
0 of 0 routesRPKI:
IRR:
Swipe sideways to see all columns →
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| This prefix is not announced as a whole. Parts of it are announced as more-specific prefixes, see below. | ||||
Related Announcements
1 less-specific, 6 more-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 203.192.128.0/18 | AS4637 ASN-TELSTRA-GLOBAL - Telstra Global | Valid | - | 2026-10-12 |
| 203.192.130.0/24 | AS4637 ASN-TELSTRA-GLOBAL - Telstra Global | Valid | - | 2026-10-12 |
| 203.192.136.0/24 | AS4637 ASN-TELSTRA-GLOBAL - Telstra Global | Valid | - | 2026-10-12 |
| 203.192.141.0/24 | AS4637 ASN-TELSTRA-GLOBAL - Telstra Global | Valid | - | 2026-10-12 |
| 203.192.150.0/24 | AS4637 ASN-TELSTRA-GLOBAL - Telstra Global | Valid | - | 2026-10-12 |
| 203.192.151.0/24 | AS4637 ASN-TELSTRA-GLOBAL - Telstra Global | Valid | - | 2026-10-12 |
| 203.192.156.0/24 | AS4637 ASN-TELSTRA-GLOBAL - Telstra Global | Valid | - | 2026-10-12 |
RPKI ROAs
| Prefix | Origin | Max Length | Trust Anchor |
|---|---|---|---|
| 203.192.128.0/18 | AS4637 | /18 | apnic |
More Specific Prefixes
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/203.192.128.0/19Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/203.192.128.0/19" | jq
External Links