183.173.0.0/17
🇨🇳CIDR
183.173.0.0/17
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
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 183.173.0.0/17 | AS4538ERX-CERNET-BKB - China Education and Research Network Center | No ROA | RADB | 5/31/2026 |
Covering Prefix
8 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 183.172.0.0/14 | AS4538ERX-CERNET-BKB - China Education and Research Network Center | No ROA | — | 5/31/2026 |
| 183.172.0.0/15 | AS4538ERX-CERNET-BKB - China Education and Research Network Center | No ROA | — | 5/31/2026 |
| 183.172.0.0/15 | AS24348CNGI-BJ-IX2-AS-AP - CERNET2 IX at Tsinghua University | No ROA | — | 5/31/2026 |
| 183.173.0.0/16 | AS4538ERX-CERNET-BKB - China Education and Research Network Center | No ROA | — | 5/31/2026 |
| 183.173.0.0/16 | AS24348CNGI-BJ-IX2-AS-AP - CERNET2 IX at Tsinghua University | No ROA | — | 5/31/2026 |
| 183.173.0.0/18 | AS4538ERX-CERNET-BKB - China Education and Research Network Center | No ROA | — | 5/31/2026 |
| 183.173.64.0/18 | AS4538ERX-CERNET-BKB - China Education and Research Network Center | No ROA | — | 5/31/2026 |
| 183.173.64.0/18 | AS24348CNGI-BJ-IX2-AS-AP - CERNET2 IX at Tsinghua University | No ROA | — | 5/31/2026 |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS4538 | RADB | MAINT-AS58453 | 11/13/2023 |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/183.173.0.0/17Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/183.173.0.0/17" | jq
External Links