| OPX | Ang Thong | LEQ | Army United | OQC | Assumption United | TBQ | Ayutthaya FC | | PGB | Ayutthaya United | IRS | BG Pathum United | QLQ | Banbueng | OQE | Bangkok CC | | NEB | Bangkok FC | JZN | Bangkok United | SXE | Bankhai United | VZX | Burapha United | | JSO | Buriram United | QLN | Chachoengsao | JWN | Chainat Hornbill | VMJ | Chamchuri United | | UDJ | Chanthaburi | RNK | Chiangmai United | MOA | Chiangmai | SMK | Chiangrai City | | LJA | Chiangrai United | GKQ | Chonburi | ONX | Chula United | OQB | Customs United | | TFP | Inter Bangkok | OJC | Jumpasri United | UQY | Kanchanaburi | PGD | Kasetsart | | OHP | Khon Kaen FC | SLN | Khon Kaen United | UMC | Kohkwang United | KUA | Krabi | | GKO | Krung Thai Bank | OPY | Lampang* | SKR | Lamphun Warriors | KOH | Lopburi | | UQZ | MH Nakhon Si City | UMA | Mahasarakham | SXD | Muang Loei United | SKZ | Muangkan United | | ULE | Muangthong B | IRD | Muangthong United | TJU | NRU | VTO | Nakhon Maesot | | OQD | Nakhon Nayok | NEX | Nakhon Pathom | OGM | Nakhon Ratchasima | TJV | Nakhon Si United | | TRV | Nan | LZF | Navy | OPP | Nongbua Pitchaya | TCL | Nonthaburi United | | VYK | North Bangkok Uni | LGT | PTT Rayong | TCP | Pattani | TJY | Pattaya United | | VTN | Phattalung | SKQ | Phitsanulok Unity | TFQ | Phitsanulok | SKS | Phrae United | | KXK | Phuket Andaman | JWM | Police Tero | MEK | Police United | LMS | Port FC | | NUS | Prachuap | ULZ | Prime Bangkok | SXF | Rajpracha | SLO | Ranong United | | VYJ | Rasisalai United | LQK | Ratchaburi | OPZ | Rayong FC | VTQ | Roi-Et United | | ULY | STK Muangnont | OQF | Samut Prakan FC | VQU | Samut Sakhon City | VQV | Samut Sakhon Utd | | RNG | Samut Sakhon | LGS | Samut Songkhram | JYT | SamutPrakan City* | NZY | Saraburi | | UWM | Satun United | UMB | Sisaket United | MCO | Sisaket | LZK | Songkhla | | IXI | Sriracha | ONW | Sukhothai | MPL | Suphanburi | OHO | TOT | | OQA | TTM Customs | NPO | Thai Honda | VMI | Trang United | PGC | Trat | | TLE | Ubon Kruanapat | OPE | Ubon United | PJH | Udon Thani | TMH | Udon United | | LAP | Uthai Thani | SPW | Uthai Thani | UWL | Uttaradit |
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