61.51.0.0/16 - China Unicom Beijing Province Network (AS4808)
CIDR
61.51.0.0/16
IP Version
IPv4
Addresses
65.5K
Mask
/16 (255.255.0.0)
Country
🇨🇳 China
City
Jingshan (Dongcheng District)
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 |
|---|---|---|---|---|
| 61.51.0.0/16 | AS4808 CHINA169-BJ - China Unicom Beijing Province Network | Valid | Other IRR | 2026-10-12 |
More-Specific Announcements
7 more-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 61.51.0.0/18 | AS4808 CHINA169-BJ - China Unicom Beijing Province Network | Valid | - | 2026-10-12 |
| 61.51.0.0/20 | AS4808 CHINA169-BJ - China Unicom Beijing Province Network | Valid | - | 2026-10-12 |
| 61.51.24.0/23 | AS4808 CHINA169-BJ - China Unicom Beijing Province Network | Valid | - | 2026-10-12 |
| 61.51.64.0/18 | AS4808 CHINA169-BJ - China Unicom Beijing Province Network | Valid | - | 2026-10-12 |
| 61.51.80.0/21 | AS4808 CHINA169-BJ - China Unicom Beijing Province Network | Valid | - | 2026-10-12 |
| 61.51.128.0/18 | AS4808 CHINA169-BJ - China Unicom Beijing Province Network | Valid | - | 2026-10-12 |
| 61.51.192.0/18 | AS4808 CHINA169-BJ - China Unicom Beijing Province Network | Valid | - | 2026-10-12 |
RPKI ROAs
| Prefix | Origin | Max Length | Trust Anchor |
|---|---|---|---|
| 61.51.0.0/16 | AS4808 | /16 | apnic |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS4808 | Other IRR | MAINT-AS58453 | 2023-11-13 |
More Specific Prefixes
| Prefix | AS | Country | Status |
|---|---|---|---|
| 61.51.0.0/20 | AS4808 | 🇨🇳CN | assigned |
| 61.51.16.0/20 | 🇨🇳CN | assigned |
Related Prefixes
More prefixes of AS4808
All prefixes of AS4808 →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/61.51.0.0/16Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/61.51.0.0/16" | jq
External Links