202.75.208.0/21 - CHINA UNICOM China169 Backbone (AS4837)
CIDR
202.75.208.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
Country
🇨🇳 China
RIR
APNIC
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
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| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 202.75.208.0/21 | AS4837 CHINA169-Backbone - CHINA UNICOM China169 Backbone | Valid | Other IRR | 2026-10-13 |
More-Specific Announcements
2 more-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 202.75.208.0/22 | AS4837 CHINA169-Backbone - CHINA UNICOM China169 Backbone | Valid | - | 2026-10-13 |
| 202.75.212.0/22 | AS4837 CHINA169-Backbone - CHINA UNICOM China169 Backbone | Valid | - | 2026-10-13 |
RPKI ROAs
| Prefix | Origin | Max Length | Trust Anchor |
|---|---|---|---|
| 202.75.208.0/21 | AS4837 | /21 | apnic |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS4837 | Other IRR | MAINT-AS58453 | 2023-11-13 |
More Specific Prefixes
| Prefix | AS | Country | Status |
|---|---|---|---|
| 202.75.208.0/22 | AS4837 | 🇨🇳CN | assigned |
| 202.75.212.0/22 | AS4837 | 🇨🇳CN | assigned |
Related Prefixes
Geolocation
Country🇨🇳ChinaCN
Coordinates35.8617, 104.1954 ↗
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/202.75.208.0/21Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/202.75.208.0/21" | jq
External Links