157.255.168.0/21
🇨🇳CIDR
157.255.168.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
Country
🇨🇳 China
City
Guangzhou
RIR
APNIC
Status
assigned
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 157.255.168.0/21 | AS135061UNICOM-ShenZhen-IDC - China Unicom Guangdong IP network | No ROA | APNIC | 5/31/2026 |
Covering Prefix
4 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 157.255.0.0/16 | AS17816CHINA169-GZ - China Unicom IP network China169 Guangdong province | No ROA | — | 5/31/2026 |
| 157.255.172.0/22 | AS135061UNICOM-ShenZhen-IDC - China Unicom Guangdong IP network | No ROA | — | 5/31/2026 |
| 157.255.168.0/24 | AS135061UNICOM-ShenZhen-IDC - China Unicom Guangdong IP network | No ROA | — | 5/31/2026 |
| 157.255.169.0/24 | AS135061UNICOM-ShenZhen-IDC - China Unicom Guangdong IP network | No ROA | — | 5/31/2026 |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/157.255.168.0/21Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/157.255.168.0/21" | jq
External Links