HomePrefix Lookup203.242.128.0/17

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 route
RPKI:
IRR:
PrefixOrigin ASRPKIIRRLast Seen
203.242.128.0/17AS7557KTNET-AS-KR - Korea Trade NetworkNo ROA
RADB
6/1/2026

IRR Route Objects

1
OriginRegistryMaintainerModified
AS7557RADBMAINT-AS463711/13/2023

More Specific Prefixes

4
PrefixASCountryStatus
203.242.160.0/19🇰🇷KRassigned
203.242.128.0/19🇰🇷KRassigned
203.242.224.0/19🇰🇷KRassigned
203.242.192.0/19🇰🇷KRassigned
Geolocation
Country🇰🇷South KoreaKR
RegionSeoul
CityYongsan-dong (Yeongdong-daero)
GEThttps://api.ipctl.io/v1/prefix/203.242.128.0/17

Returns prefix allocation, BGP routes, and more-specific subnets.

curl -s "https://api.ipctl.io/v1/prefix/203.242.128.0/17" | jq