121.192.192.0/18
🇨🇳IPv4APNICannouncedMOASNo ROA
CIDR
121.192.192.0/18
IP Version
IPv4
Addresses
16.3K
Mask
/18 (255.255.192.0)
Country
🇨🇳 China
City
Shanghai
RIR
APNIC
Status
announced
Allocated
-
Announced BGP Routes
2 of 2 routesMOAS - 2 origin ASNs
RPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 121.192.192.0/18 | AS4538ERX-CERNET-BKB - China Education and Research Network Center | No ROA | — | 6/1/2026 |
| 121.192.192.0/18 | AS24368CNGI-XMN-IX-AS-AP - CERNET2 IX at Xiamen University | No ROA | — | 6/1/2026 |
Covering Prefix
3 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 121.192.0.0/14 | AS4538ERX-CERNET-BKB - China Education and Research Network Center | No ROA | — | 6/1/2026 |
| 121.192.0.0/15 | AS4538ERX-CERNET-BKB - China Education and Research Network Center | No ROA | — | 6/1/2026 |
| 121.192.0.0/16 | AS4538ERX-CERNET-BKB - China Education and Research Network Center | No ROA | — | 6/1/2026 |
Origin ASNs (2)
AS4538MOAS
ERX-CERNET-BKB - China Education and Research Network Center
AS24368MOAS
CNGI-XMN-IX-AS-AP - CERNET2 IX at Xiamen University
Geolocation
API
Open https://api.ipctl.io/v1/prefix/121.192.192.0/18Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/121.192.192.0/18" | jq
External Links