203.236.128.0/18 covers 203.236.128.0 to 203.236.191.255, 16,384 IPv4 addresses. It is announced by AS9848 (Sejong Telecom Co., Ltd.) and 4 other networks. Every sampled address geolocates to South Korea, with 94% in Gwacheon-si. It is registered to a hosting or cloud provider. None of the sampled addresses are flagged as VPN, proxy or Tor.