| PCA | Ansan Greeners | LEQ | Asan United | KWD | Bucheon FC 1995 | BAW | Busan I'Park | | JWG | Busan TC | VDQ | Byeoksan Players | JVU | Changwon City | SMV | Cheonan City | | JVV | Cheongju City | UNZ | Cheongju Showking | TDX | Cheongsol | VTY | Chonbok Motors B | | ELB | Chonbuk Motors | SMU | Chuncheon Citizen | LEO | Chungbuk Cheongju | JVW | Chungju Hummel | | KWE | Chungnam Asan | JM | Chunnam Dragons | VUX | Daegu Cheongsol | VCL | Daegu FC B | | ELC | Daegu FC | UOF | Daejeon Seobu | DWF | Daejon Citizen | JWE | Daejon KHNP | | JWD | Daejon Korail | TDM | Dangjin Citizen | JVZ | FC Anyang | TTI | FC Avenir | | JWC | FC Mokpo | SQM | FC Namdong | EUO | FC Seoul | PGG | FC Uijeongbu | | JVX | Gangneung Citizen | GYE | Gangwon | TTH | Geoje Citizen | VUY | Geonyung | | VUV | Gijang United | BVY | Gimcheon Sangmu | JVY | Gimhae FC | TDZ | Gimhae Jaemics | | LEL | Gimpo FC | SPO | Goyang Citizen | UNV | Goyang Happiness | JVT | Goyang Hi | | TSX | Goyang KH | ISY | Gwangju FC | LEM | Gyeongju Citizen | LEP | Gyeongju KHNP | | FGA | Gyeongnam | LEY | Hwaseong | SPL | Hyochang | SMT | Icheon Citizen | | UOC | Incheon Ganseok | VUW | Incheon Seogot | EMT | Incheon United | DXI | Jeju United | | SNB | Jeonju Citizen | VEB | Jeonju OFC | SMY | Jinju Citizen | DWG | Korea University | | UOE | Mokpo Gatdangdae | VDN | Namyangju | LEW | Nowon United | SGR | Paju Citizen | | LEX | Pocheon Citizen | CBO | Pohang Steelers | BGL | Posco Atoms | TTM | Pyeongchang | | SMZ | Pyeongtaek | BVK | Royal Korea | SPM | SMC Engineering | VUS | Sejong SA | | UOA | Sejong Vanesse | UOB | Sejong Wookil | UOD | Seogu Hwajeong | VDZ | Seongdang | | EUJ | Seongnam Ilhwa | NNT | Seoul E-Land | LEN | Seoul FC Martyrs | SQV | Seoul Jungnang | | VDO | Shinan | RVY | Siheung Citizen | SPN | Songwol | BTU | Suwon Bluewings | | JWA | Suwon FC | SMW | Ulsan Citizen | JWF | Ulsan Dolphins | BGJ | Ulsan HD | | TDL | Yangcheon TNT | SMS | Yangju Citizen | VDP | Yangju Deokkye | SNA | Yangpyeong | | VEA | Yangsan Eogok | TDN | Yeoju FC | SPP | Yeoncheon | JWB | Yongin City |
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