203.223.21.0/24 - China Telecom Next Generation Carrier Network (AS4809)
IPv4APNICannouncedAS4809CHINATELECOM-CORE-WAN-CN2 - China Telecom Next Generation Carrier Network RPKI Valid
CIDR
203.223.21.0/24
IP Version
IPv4
Addresses
256
Mask
/24 (255.255.255.0)
Country
🇸🇬 Singapore
City
Singapore
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 |
|---|---|---|---|---|
| 203.223.21.0/24 | AS4809 CHINATELECOM-CORE-WAN-CN2 - China Telecom Next Generation Carrier Network | Valid | Other IRR | 2026-10-13 |
RPKI ROAs
| Prefix | Origin | Max Length | Trust Anchor |
|---|---|---|---|
| 203.223.21.0/24 | AS4809 | /24 | apnic |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS4809 | Other IRR | MAINT-CT-GNOC | 2023-11-13 |
More Specific Prefixes
| Prefix | AS | Country | Status |
|---|---|---|---|
| 203.223.21.0/25 | 🇸🇬SG | assigned |
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/203.223.21.0/24Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/203.223.21.0/24" | jq
External Links