Callsigns are inserted into flight plan as a combination in 2 fileds. FIrst field should include shortened callsigns (e.g. HRVST). Full phonetic is then in field 18 - remarks (e.g. CS/HARVESTER)
Kryštof / KRxx - All HEMS flights
Florian - Firefighting flights (not really used IRL)
Calibra / CBAxx - Calibrations flights
All international flights
CEFxxx - Czech air force (xxx numbers in table below)
Domestical/Tactical flights
Use NATO callsigns as table below:
| AIRCRAFT TYPE | SQUADRON | CALLSIGN | FPL FORMAT | NUMBER RANGE | ||
| JAS39 Gripen | 211. Tactical Squadron | QRA NATINAMDS | CF (Charlie Foxtrot) | CF | 01, 02 | |
| JAS39 Gripen | 211. Tactical Squadron | MAIDEN, SILVO, LION, SPEARHEAD | MDEN, SILVO, LION, SPRHD | 01-99 | ||
| L-159 Alca | 212. Tactical Squadron | PEGAS, PLUTO, GOLEM, HARVESTER, DAISY | PEGAS, PLUTO, GOLEM, HRVST?, DAISY | 01-99 | ||
| L-159 Alca | 212. Tactical Squadron | NaPoSy PVO | ROBOT | ROBOT | 01-99 | |
| L-159 Alca | 213. Training Squadron | BUTCHER | BUTCH | 01-99 | ||
| JAS39, L-39, L-159 | 21. Tactical AF Base Čáslav | CZECH AIR FORCE | CEF | 300-399 | ||
| L-39 Albatros | CLV Pardubice | SHARK, ARROW, BEETLE | SHARK, ARROW, BTLE | 01-99 | ||
| Z142 | CLV Pardubice | BASIC, BABY, BOYCOTT | BASIC, BABY, BCOTT | 01-99 | ||
| EV97 | CLV Pardubice | CANDY | CANDY | 01-99 | ||
| L410 | CLV Pardubice | BUDDY, COTTAGE | BUDDY, CTTG | 01-99 | ||
| A319CJ | 241. Transport Squadron | CZECH AIR FORCE, DOLPHIN | CEF, DPHIN | CEF 501-599 TAC 01-99 | ||
| C295M | 242. Transport Squadron | CZECH AIR FORCE, SMUGLER | CEF, SMGLR | CEF 601-699 TAC 01-99 | ||
| L410FG | 242. Transport Squadron | FOTO | FOTO | 01-99 | ||
| L410 | 242. Transport Squadron | CZECH AIR FORCE, GRIZZLY, CABBY | GRZL, CABBY | CEF 101-199 TAC 01-99 | ||
| CL601 | 241. Transport Squadron (Retired) | CZECH AIR FORCE, TSHIRT | CEF, TSHRT | CEF 201-299 TAC 01-99 | ||
| YK40 | 241. Transport Squadron (Retired) | CZECH AIR FORCE, JEKYLL | CEF, JKIL | CEF x01-x99 TAC 01-99 | ||
| L-39 Albatros | Aero Vodochody | TRAINING | ALBIK | ALBIK | 01-99 | |
| L-159 Alca | Aero Vodochody | TRAINING | FENEC, AERO | FENEC, AERO | 01-99 | |
| L-39, L-59, L-159 | Aero Vodochody | TEST FLIGHT | ZALET | ZALET | 01-99 | |
| AIRCRAFT TYPE | SQUADRON | CALLSIGN | FPL FORMAT | NUMBER RANGE | ||
| MI24/35 | 221. Helicopter Squadron (Retired) | WOLF, GEPARD, PERUN | WOLF, GPRD, PRN | 01-99 | ||
| AH-1Z Viper | 221. Helicopter Squadron | STALKER, DRAGON, HUNTER | STLRK, DRAGN, HUNTR | 01-99 | ||
| MI171š | 221. Helicopter Squadron | ROSEBUD, SUNFLOWER | ROSE, SUN | 01-99 | ||
| MI171š | 222. Helicopter Squadron | HIPPO | HIPPO | 01-99 | ||
| MI171š | 222. Helicopter Squadron | SAR / RCC | RESCUE | RESCU | 01-99 | |
| UH-1Y Venom | 222. Helicopter Squadron | GHOST, SPELTER, PRIEST | GHOST, SPLTR, PRIST | 01-99 | ||
| MI24/35, MI171š, H-1 | 22. Helicoper Air Base Náměšť | CZECH AIR FORCE | CEF | 400-499 | ||
| W3A | 243. Helicopter Squadron | HANDY, HELPER | HANDY, HLPR | 01-99 | ||
| MI8 | 243. Helicopter Squadron | SALOON | SALON | 01-99 | ||
| MI17 | 243. Helicopter Squadron | GASTON | GASTN | 01-99 | ||
| MI17 | 243. Helicopter Squadron | SAR / RCC | RESCUE | RESCU | 01-99 | |
| MI17 | CLV Pardubice | DUSTER, GIMLET, SHAKER | DSTER, GMLT, SHKR | 01-99 | ||
| 480B-G | CLV Pardubice | BLADE, RAZOR, SABRE | BLADE, RAZOR, SABRE | 01-99 | ||
| MI-8/17/171/24/35 | LOM | TEST FLIGHT | VEGA, MASON | VEGA, MASON | 01-99 | |