121.157.4.0/24
🇰🇷CIDR
121.157.4.0/24
IP Version
IPv4
Addresses
256
Mask
/24 (255.255.255.0)
Country
🇰🇷 South Korea
City
Seongnam-si (Jungwon-gu)
RIR
APNIC
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 121.157.4.0/24 | AS9862RAYNET1-KR - GORayNet | No ROA | — | 5/31/2026 |
Covering Prefix
3 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 121.128.0.0/11 | AS4766KIXS-AS-KR-KR - Korea Telecom | No ROA | — | 5/31/2026 |
| 121.144.0.0/12 | AS4766KIXS-AS-KR-KR - Korea Telecom | No ROA | — | 5/31/2026 |
| 121.152.0.0/13 | AS4766KIXS-AS-KR-KR - Korea Telecom | No ROA | — | 5/31/2026 |
Origin ASN
AS9862
RAYNET1-KR - GORayNet
Geolocation
Country🇰🇷South KoreaKR
RegionGyeonggi-do
CitySeongnam-si (Jungwon-gu)
Coordinates37.4335, 127.1600 ↗
API
Open https://api.ipctl.io/v1/prefix/121.157.4.0/24Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/121.157.4.0/24" | jq
External Links