221.13.96.0/19 - CHINA UNICOM China169 Backbone (AS4837)
CIDR
221.13.96.0/19
IP Version
IPv4
Addresses
8.1K
Mask
/19 (255.255.224.0)
Country
🇨🇳 China
City
Yangjiaping (Jiulongpo Qu)
RIR
APNIC
Status
allocated
Allocated
2005-02-15
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
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| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 221.13.96.0/19 | AS4837 CHINA169-Backbone - CHINA UNICOM China169 Backbone | Valid | APNICOther IRR | 2026-10-13 |
More-Specific Announcements
1 more-specific announcement| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 221.13.124.0/24 | AS4837 CHINA169-Backbone - CHINA UNICOM China169 Backbone | Valid | - | 2026-10-13 |
RPKI ROAs
| Prefix | Origin | Max Length | Trust Anchor |
|---|---|---|---|
| 221.13.96.0/19 | AS4837 | /19 | apnic |
More Specific Prefixes
| Prefix | AS | Country | Status |
|---|---|---|---|
| 221.13.96.0/21 | 🇨🇳CN | assigned | |
| 221.13.104.0/24 | 🇨🇳CN | assigned |
Related Prefixes
More prefixes of AS4837
All prefixes of AS4837 →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/221.13.96.0/19Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/221.13.96.0/19" | jq
External Links