203.242.128.0/17
🇰🇷CIDR
203.242.128.0/17
IP Version
IPv4
Addresses
32.7K
Mask
/17 (255.255.128.0)
Country
🇰🇷 South Korea
City
Yongsan-dong (Yeongdong-daero)
RIR
APNIC
Status
allocated
Allocated
9/29/1996
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 203.242.128.0/17 | AS7557KTNET-AS-KR - Korea Trade Network | No ROA | RADB | 6/1/2026 |
Covering Prefix
6 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 203.242.146.0/24 | AS7557KTNET-AS-KR - Korea Trade Network | No ROA | — | 6/1/2026 |
| 203.242.148.0/24 | AS7557KTNET-AS-KR - Korea Trade Network | No ROA | — | 6/1/2026 |
| 203.242.151.0/24 | AS7557KTNET-AS-KR - Korea Trade Network | No ROA | — | 6/1/2026 |
| 203.242.202.0/24 | AS7557KTNET-AS-KR - Korea Trade Network | No ROA | — | 6/1/2026 |
| 203.242.207.0/24 | AS7557KTNET-AS-KR - Korea Trade Network | No ROA | — | 6/1/2026 |
| 203.242.243.0/24 | AS7557KTNET-AS-KR - Korea Trade Network | No ROA | — | 6/1/2026 |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS7557 | RADB | MAINT-AS4637 | 11/13/2023 |
More Specific Prefixes
| Prefix | AS | Country | Status |
|---|---|---|---|
| 203.242.160.0/19 | 🇰🇷KR | assigned | |
| 203.242.128.0/19 | 🇰🇷KR | assigned | |
| 203.242.224.0/19 | 🇰🇷KR | assigned | |
| 203.242.192.0/19 | 🇰🇷KR | assigned |
Origin ASN
AS7557
KTNET-AS-KR - Korea Trade Network
Geolocation
Country🇰🇷South KoreaKR
RegionSeoul
CityYongsan-dong (Yeongdong-daero)
Coordinates37.5073, 127.0640 ↗
API
Open https://api.ipctl.io/v1/prefix/203.242.128.0/17Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/203.242.128.0/17" | jq
External Links