TKM - Turkmenistan :

Turkmenistan was part of the Soviet Union (URS) until 1991-12-25

- see here for a note on stations of formerly exixting countries -

 

ALFA Seyda TKM-32
  Ashgabat Aero TKM-61
  Dashoguz Aero TKM-26
    NDB Dashoguz *R TKM-52
    NDB Dashoguz *RP TKM-29