221.239.128.0/17 - China Telecom (Group) (AS4812)
CIDR
221.239.128.0/17
IP Version
IPv4
Addresses
32.7K
Mask
/17 (255.255.128.0)
Country
🇨🇳 China
City
Shanghai
RIR
APNIC
Status
allocated
Allocated
2003-10-24
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
Swipe sideways to see all columns →
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 221.239.128.0/17 | AS4812 CHINANET-SH-AP - China Telecom (Group) | Valid | Other IRR | 2026-10-12 |
RPKI ROAs
| Prefix | Origin | Max Length | Trust Anchor |
|---|---|---|---|
| 221.239.128.0/17 | AS4812 | /17 | apnic |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS4812 | Other IRR | MAINT-AS4812 | 2023-11-13 |
More Specific Prefixes
| Prefix | AS | Country | Status |
|---|---|---|---|
| 221.239.208.34/32 | 🇨🇳CN | assigned | |
| 221.239.208.60/32 | 🇨🇳CN | assigned | |
| 221.239.208.88/32 | 🇨🇳CN | assigned | |
| 221.239.208.200/32 | 🇨🇳CN | 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/221.239.128.0/17Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/221.239.128.0/17" | jq
External Links