42.245.252.0/23
🇨🇳IPv4APNICannouncedMOASNo ROA
CIDR
42.245.252.0/23
IP Version
IPv4
Addresses
512
Mask
/23 (255.255.254.0)
Country
🇨🇳 China
City
Kunming (Xishan Qu)
RIR
APNIC
Status
announced
Allocated
-
Announced BGP Routes
2 of 2 routesMOAS - 2 origin ASNs
RPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 42.245.252.0/23 | AS4538ERX-CERNET-BKB - China Education and Research Network Center | No ROA | — | 6/1/2026 |
| 42.245.252.0/23 | AS133512CERNEWTECH-ZHENGZHOU - CERNET New Technology Co., Ltd | No ROA | — | 6/1/2026 |
Covering Prefix
5 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 42.245.0.0/16 | AS4538ERX-CERNET-BKB - China Education and Research Network Center | No ROA | — | 6/1/2026 |
| 42.245.192.0/18 | AS4538ERX-CERNET-BKB - China Education and Research Network Center | No ROA | — | 6/1/2026 |
| 42.245.192.0/18 | AS133111CNT-northChina - CERNET New Technology Co., Ltd | No ROA | — | 6/1/2026 |
| 42.245.253.0/24 | AS4538ERX-CERNET-BKB - China Education and Research Network Center | No ROA | — | 6/1/2026 |
| 42.245.253.0/24 | AS134169CERNEWTECHRES-AS-CN - CERNEWTECH (Beijing) co.,LTD | No ROA | — | 6/1/2026 |
More Specific Prefixes
| Prefix | AS | Country | Status |
|---|---|---|---|
| 42.245.252.0/24 | 🇨🇳CN | assigned | |
| 42.245.253.0/24 | AS4538 | 🇨🇳CN | assigned |
Origin ASNs (2)
AS4538MOAS
ERX-CERNET-BKB - China Education and Research Network Center
AS133512MOAS
CERNEWTECH-ZHENGZHOU - CERNET New Technology Co., Ltd
Geolocation
API
Open https://api.ipctl.io/v1/prefix/42.245.252.0/23Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/42.245.252.0/23" | jq
External Links