203.245.0.0 - 203.245.63.255 (KOLNET) Korea PC Telecom; Samsung Omni Tower 395-62, Shindaebang-Dong, Dongjac-Ku,; Seoul, Korea; 156-010; KR 203.245.64.0 - 203.245.127.255 (HOYUNET) Honam Oil Refinery Co.,Ltd (HOYU); KR 203.245.128.0 - 203.245.255.255 (POSEC-NET) POSCO Engineering & Construction Co., Ltd (POSEC); KR