123.58.0.0/20
🇨🇳IPv4APNICallocatedMOAS RPKI Valid
CIDR
123.58.0.0/20
IP Version
IPv4
Addresses
4K
Mask
/20 (255.255.240.0)
Country
🇨🇳 China
City
Beijing
RIR
APNIC
Status
allocated
Allocated
1/16/2007
Announced BGP Routes
2 of 2 routesMOAS - 2 origin ASNs
RPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 123.58.0.0/20 | AS23724CHINANET-IDC-BJ-AP - IDC, China Telecommunications Corporation | Invalid | — | 5/31/2026 |
| 123.58.0.0/20 | AS133119UNICOM-CN - China Unicom IP network | Valid | — | 5/31/2026 |
Covering Prefix
7 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 123.58.0.0/19 | AS23724CHINANET-IDC-BJ-AP - IDC, China Telecommunications Corporation | No ROA | — | 5/31/2026 |
| 123.58.8.0/21 | AS24138CTTNET - China TieTong Telecommunications Corporation | Invalid | — | 5/31/2026 |
| 123.58.0.0/21 | AS24138CTTNET - China TieTong Telecommunications Corporation | Invalid | — | 5/31/2026 |
| 123.58.12.0/22 | AS9808CHINAMOBILE-CN - China Mobile Communications Group Co., Ltd. | Invalid | — | 5/31/2026 |
| 123.58.0.0/22 | AS9808CHINAMOBILE-CN - China Mobile Communications Group Co., Ltd. | Invalid | — | 5/31/2026 |
| 123.58.4.0/22 | AS9808CHINAMOBILE-CN - China Mobile Communications Group Co., Ltd. | Invalid | — | 5/31/2026 |
| 123.58.8.0/22 | AS9808CHINAMOBILE-CN - China Mobile Communications Group Co., Ltd. | Invalid | — | 5/31/2026 |
RPKI ROAs
| Prefix | Origin | Max Length | Trust Anchor |
|---|---|---|---|
| 123.58.0.0/20 | AS133119 | /20 | apnic |
More Specific Prefixes
| Prefix | AS | Country | Status |
|---|---|---|---|
| 123.58.0.0/21 | AS24138 | 🇨🇳CN | assigned |
Origin ASNs (2)
AS23724MOAS
CHINANET-IDC-BJ-AP - IDC, China Telecommunications Corporation
AS133119MOAS
UNICOM-CN - China Unicom IP network
Geolocation
API
Open https://api.ipctl.io/v1/prefix/123.58.0.0/20Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/123.58.0.0/20" | jq
External Links