Author: Alan, 5B4AHJ
The prefix UJ was used for Tajikistan prior to the break-up of the USSR.
As was usual with USSR callsigns, the first letter of the suffix denoted the oblast.
| Prefix | Oblast # | Oblast name |
| UJ#J | 040 | Districts of Republican Subordination |
| UJ#K | 182 | Kulab (before 1988-09-08 and after 1990-01-24) |
| UJ#K | 192 | Khatlon (from 1988-09-08 to 1990-01-23) |
| UJ#R | 042 | Gornyj Badakhshan GBAO |
| UJ#S | 041 | Leninabad |
| UJ#X | 183 | Kurgan-Tube (part of oblast #192 from 1988-09-08 to 1990-01-23) |
Following independence, from 1994-01-01 the prefix for Tajikistan became EY and administrative regions were denoted by the call area, not the first letter of the suffix.
| Prefix | Old prefix | Administrative region |
| EY0-3 | N/A | Reserved for 'l'ajik Amateur Radio League |
| EY4 | UJ#R | Gornyj Badakhshan GBAO |
| EY5 | UJ#K | Khatlon, Regions of Kulab City |
| EY6 | UJ#X | Khatlon, Region of Kurgan-Tube City |
| EY7 | UJ#S | Sogd |
| EY8 | UJ#J | Dushanbe City |
| EY9 | UJ#J, UJ#X | Districts of Republican Subordination |
Acknowledgements
425 DX News #259, 1996-004-20
DX News Sheet #1627, 1994-07-27
DX News Sheet Oblast Guide
Nodir Tursoon-Zadeh UJ8JMM/EY8MM
Wikipedia Districts of Republican Subordination