183.170.0.0/20 - BGP Prefix (MOAS)
IPv4APNICannouncedMOASNo ROA
CIDR
183.170.0.0/20
IP Version
IPv4
Addresses
4K
Mask
/20 (255.255.240.0)
Country
🇨🇳 China
City
Beijing
RIR
APNIC
Status
announced
Allocated
-
Announced BGP Routes
2 of 2 routesMOAS - 2 origin ASNs
RPKI:
IRR:
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| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 183.170.0.0/20 | AS4538 ERX-CERNET-BKB - China Education and Research Network Center | No ROA | Other IRR | 2026-10-13 |
| 183.170.0.0/20 | AS24360 CNGI-ZHZ-IX-AS-AP - CERNET2 IX at Zhengzhou University | No ROA | - | 2026-10-13 |
Covering Prefix
1 less-specific announcement| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 183.170.0.0/16 | AS4538 ERX-CERNET-BKB - China Education and Research Network Center | No ROA | - | 2026-10-13 |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS4538 | Other IRR | MAINT-AS58453 | 2023-11-13 |
Origin ASNs (2)
AS4538MOAS
ERX-CERNET-BKB - China Education and Research Network Center
AS24360MOAS
CNGI-ZHZ-IX-AS-AP - CERNET2 IX at Zhengzhou University
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/183.170.0.0/20Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/183.170.0.0/20" | jq
External Links