210.12.136.0/21 - China Unicom Beijing Province Network (AS4808)
CIDR
210.12.136.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
Country
🇨🇳 China
City
Ürümqi
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 |
|---|---|---|---|---|
| 210.12.136.0/21 | AS4808 CHINA169-BJ - China Unicom Beijing Province Network | Valid | APNICOther IRR | 2026-10-13 |
RPKI ROAs
| Prefix | Origin | Max Length | Trust Anchor |
|---|---|---|---|
| 210.12.136.0/21 | AS4808 | /21 | apnic |
More Specific Prefixes
| Prefix | AS | Country | Status |
|---|---|---|---|
| 210.12.136.0/24 | 🇨🇳CN | assigned | |
| 210.12.137.0/24 | 🇨🇳CN | assigned | |
| 210.12.138.0/25 | 🇨🇳CN | assigned | |
| 210.12.139.0/24 | 🇨🇳CN | assigned | |
| 210.12.140.0/24 | 🇨🇳CN | assigned | |
| 210.12.141.0/24 | 🇨🇳CN | assigned | |
| 210.12.142.0/28 | 🇨🇳CN | assigned | |
| 210.12.142.16/29 | 🇨🇳CN | assigned | |
| 210.12.142.24/29 | 🇨🇳CN | assigned | |
| 210.12.142.32/28 | 🇨🇳CN | assigned | |
| 210.12.142.64/26 | 🇨🇳CN | assigned | |
| 210.12.143.0/25 | 🇨🇳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/210.12.136.0/21Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/210.12.136.0/21" | jq
External Links