59.77.136.0/21
🇨🇳IPv4APNICannouncedMOASNo ROA
CIDR
59.77.136.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
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 |
|---|---|---|---|---|
| 59.77.136.0/21 | AS4538ERX-CERNET-BKB - China Education and Research Network Center | No ROA | RADB | 5/30/2026 |
| 59.77.136.0/21 | AS138373CNGI-FZH-IX-AS-AP - CERNET2 regional IX at Fuzhou University | No ROA | — | 5/30/2026 |
Covering Prefix
3 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 59.64.0.0/12 | AS4538ERX-CERNET-BKB - China Education and Research Network Center | No ROA | — | 5/30/2026 |
| 59.77.0.0/16 | AS4538ERX-CERNET-BKB - China Education and Research Network Center | No ROA | — | 5/30/2026 |
| 59.77.0.0/16 | AS24364CNGI-SH-IX-AS-AP - CERNET2 IX at Shanghai Jiaotong University | No ROA | — | 5/30/2026 |
IRR 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
AS138373MOAS
CNGI-FZH-IX-AS-AP - CERNET2 regional IX at Fuzhou University
Geolocation
API
Open https://api.ipctl.io/v1/prefix/59.77.136.0/21Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/59.77.136.0/21" | jq
External Links