204.51.0.0/18 - BGP Prefix
IPv4APNICallocated RPKI Valid
CIDR
204.51.0.0/18
IP Version
IPv4
Addresses
16.3K
Mask
/18 (255.255.192.0)
Country
🇮🇩 Indonesia
City
Karawang
RIR
APNIC
Status
allocated
Allocated
1994-06-14
Announced BGP Routes
0 of 0 routesRPKI:
IRR:
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| 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. | ||||
More-Specific Announcements
35 more-specific announcementsRPKI ROAs
| Prefix | Origin | Max Length | Trust Anchor |
|---|---|---|---|
| 204.51.0.0/18 | AS142319 | /24 | apnic |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS142319 | APNIC | MNT-APJII-ID | 2026-01-21 |
Transfer History
Registry transfers of 204.51.0.0/18, blocks inside it, or blocks containing it.
- 204.51.0.0/18inter-RIRTransfer ·
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/204.51.0.0/18Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/204.51.0.0/18" | jq
External Links