121.187.64.0/20
🇰🇷CIDR
121.187.64.0/20
IP Version
IPv4
Addresses
4K
Mask
/20 (255.255.240.0)
Country
🇰🇷 South Korea
City
Chuncheon-si
RIR
APNIC
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 121.187.64.0/20 | AS17862KWNU-AS-KR-KR - Kangwon National University | No ROA | RADB | 5/31/2026 |
Covering Prefix
3 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 121.160.0.0/11 | AS4766KIXS-AS-KR-KR - Korea Telecom | No ROA | — | 5/31/2026 |
| 121.176.0.0/12 | AS4766KIXS-AS-KR-KR - Korea Telecom | No ROA | — | 5/31/2026 |
| 121.184.0.0/13 | AS4766KIXS-AS-KR-KR - Korea Telecom | No ROA | — | 5/31/2026 |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS17862 | RADB | MAINT-AS9318 | 11/13/2023 |
Geolocation
API
Open https://api.ipctl.io/v1/prefix/121.187.64.0/20Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/121.187.64.0/20" | jq
External Links