42.0.128.0/17
🇨🇳CIDR
42.0.128.0/17
IP Version
IPv4
Addresses
32.7K
Mask
/17 (255.255.128.0)
Country
🇨🇳 China
City
Haidian (Haidian Qu)
RIR
APNIC
Status
allocated
Allocated
3/10/2011
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 42.0.128.0/17 | AS17789CNCGROUP-SH-IDC - CNCGROUP IP network of ShangHai IDC | No ROA | RADB | 5/31/2026 |
Covering Prefix
1 less-specific announcement| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 42.0.200.0/24 | AS138449SYUNET-AS-AP - SIANG YU SCIENCE AND TECHNOLOGY LIMITED | No ROA | — | 5/31/2026 |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/42.0.128.0/17Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/42.0.128.0/17" | jq
External Links