203.83.4.0/22 - ANYCAST AP Anycast Global Backbone (AS17551)
CIDR
203.83.4.0/22
IP Version
IPv4
Addresses
1K
Mask
/22 (255.255.252.0)
Country
🇦🇺 Australia
City
Melbourne
RIR
APNIC
Status
assigned
Allocated
2007-01-24
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
Swipe sideways to see all columns →
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 203.83.4.0/22 | AS17551 ANYCAST-AS-AP Anycast Global Backbone | Valid | APNIC | 2026-10-11 |
Related Prefixes
Geolocation
Country🇦🇺AustraliaAU
CityMelbourne
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/203.83.4.0/22Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/203.83.4.0/22" | jq
External Links