211.81.0.0/17
🇨🇳IPv4APNICannouncedMOASNo ROA
CIDR
211.81.0.0/17
IP Version
IPv4
Addresses
32.7K
Mask
/17 (255.255.128.0)
Country
🇨🇳 China
City
Haidian (Haidian Qu)
RIR
APNIC
Status
announced
Allocated
-
Announced BGP Routes
2 of 2 routesMOAS - 2 origin ASNs
RPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 211.81.0.0/17 | AS4538ERX-CERNET-BKB - China Education and Research Network Center | No ROA | RADB | 5/31/2026 |
| 211.81.0.0/17 | AS24352CNGI-TJN-IX-AS-AP - CERNET2 IX at Tianjin University | No ROA | — | 5/31/2026 |
Covering Prefix
35 less-specific announcementsIRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS4538 | RADB | MAINT-AS58453 | 11/13/2023 |
Origin ASNs (2)
AS4538MOAS
ERX-CERNET-BKB - China Education and Research Network Center
AS24352MOAS
CNGI-TJN-IX-AS-AP - CERNET2 IX at Tianjin University
Geolocation
API
Open https://api.ipctl.io/v1/prefix/211.81.0.0/17Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/211.81.0.0/17" | jq
External Links