49.4.96.0/21 - CHINA UNICOM China169 Backbone (AS4837)
CIDR
49.4.96.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
Country
🇨🇳 China
City
Beijing
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 |
|---|---|---|---|---|
| 49.4.96.0/21 | AS4837 CHINA169-Backbone - CHINA UNICOM China169 Backbone | No ROA | Other IRR | 2026-10-12 |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS4837 | Other IRR | MAINT-AS10099 | 2024-06-14 |
Transfer History
Registry transfers of 49.4.96.0/21, blocks inside it, or blocks containing it.
- 49.4.0.0/17Transfer ·
| Date | Resource | From | To | Type |
|---|---|---|---|---|
| 49.4.0.0/17 | Transfer |
Related Prefixes
More prefixes of AS4837
All prefixes of AS4837 →Geolocation
Country🇨🇳ChinaCN
CityBeijing
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/49.4.96.0/21Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/49.4.96.0/21" | jq
External Links