42.120.0.0/16
🇨🇳CIDR
42.120.0.0/16
IP Version
IPv4
Addresses
65.5K
Mask
/16 (255.255.0.0)
Country
🇨🇳 China
City
Hangzhou
RIR
APNIC
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 42.120.0.0/16 | AS37963ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd. | Valid | APNIC | 6/1/2026 |
Covering Prefix
3 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 42.120.0.0/17 | AS37963ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd. | Valid | — | 6/1/2026 |
| 42.120.128.0/17 | AS37963ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd. | Valid | — | 6/1/2026 |
| 42.120.248.0/24 | AS37963ALIBABA-CN-NET - Hangzhou Alibaba Advertising Co.,Ltd. | Valid | — | 6/1/2026 |
RPKI ROAs
| Prefix | Origin | Max Length | Trust Anchor |
|---|---|---|---|
| 42.120.0.0/15 | AS37963 | /24 | apnic |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS37963 | APNIC | MAINT-CNNIC-AP | 7/20/2016 |
More Specific Prefixes
| Prefix | AS | Country | Status |
|---|---|---|---|
| 42.120.128.0/17 | AS37963 | 🇨🇳CN | assigned |
| 42.120.0.0/18 | 🇨🇳CN | assigned | |
| 42.120.64.0/18 | 🇨🇳CN | assigned | |
| 42.120.180.0/24 | 🇨🇳CN | assigned | |
| 42.120.228.0/24 | 🇨🇳CN | assigned |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/42.120.0.0/16Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/42.120.0.0/16" | jq
External Links