11.1. Commonly used abbreviations / terminology
11.2. General phraseology
11.3. General operating procedures (numbers, letters, call signs)
11.4. Radiotelephony call signs for Aeronautical Station
Full Call Signs types ( A,B&C)
Type A : Call Signs
Definition:
The characters corresponding to the registration marking of the aircraft
Full Call Signs
| Example | Transmission |
|---|
| N59826 or VTESC | CESSNA VTKMC or CESSNA N 59826 |
| — | CITATION VTKMC or CITATION N59826 |
Abbreviated Call Signs
| Example | Transmission |
|---|
| N826 or N26 VSC or VESC | CESSNA MC or CESSNA KMC CESSNA 826 VMC26 |
| — | CITATION MC or CITATION KMC or CITATION 826 |
Type B : Call Signs
Definition:
The telephony designator of the aircraft operating agency, followed by the last four characters of the registration marking
Full Call Signs
Abbreviated Call Signs
| Example |
|---|
| AIR INDIA SC |
| AIR INDIA VSC |
Type C : Call Signs
Definition:
The telephony designator of the aircraft operating agency, followed by the flight identification
Full Call Signs
| ICAO | Transmission |
|---|
| AIC 111 | Air India 111 |
| IGO 2234 | IndiGo 2234 |
| SEJ 2034 | SpiceJet 2034 |
| AKJ 1350 | Akasa 1350 |
| SPJ 1466 | — |
| IGO 611 | IndiGo 611 |
Abbreviated Call Signs
| Note |
|---|
| No abbreviated call signs |
Key Aviation Notes (Useful for Exams)
- Type A: Pure registration-based (general aviation).
- Type B: Airline + partial registration (rare operational use).
- Type C: Airline + flight number (most common in commercial ops).
- Abbreviation applies mainly to registration-based callsigns.
Aircraft Call Signs – ICAO / Transmission / IATA
| ICAO Call Sign | Transmitted As (RT Phraseology) | IATA / Reg. |
|---|
| AIC 2837 | Air India two eight three seven | AI 2837 |
| AIC 531 | Air India five tree one | AI 531 |
| VT-AKC | First transmission (full): Victor Tango Alpha Kilo Charlie
Subsequent (Abbr.) : Victor Kilo Charlie | VT-AKC |
| IGO 2124 | I Fly two one two four | 6E 2124 |
| IGO 2013 | I Fly two zero one tree | 6E 2013 |
| SEJ 9818 | Spice Jet nine eight one eight | SG 9818 |
| SEJ 269 | Spice Jet two six niner | SG 269 |
| VU-AUM | First transmission (full): Victor Uniform Alpha Uniform Mike
Subsequent (Abbr.) : Victor Uniform Mike | — |
| AKJ 1146 | Akasa one one four six | QP 1146 |
| AKJ 1411 | Akasa ONE FOUR ONE ONE | QP 1411 |
| BDA 403 | Blue Dart four zero tree | BZ 403 |
| AXB 1163 | Express India one one six tree | IX 1163 |
Notes (Aviation Context)
- “Tree” = 3, “Niner” = 9 (ICAO standard pronunciation).
- Registration call signs (e.g., VT-AKC, VU-AUM) follow:
- First call: Full phonetic
- Subsequent calls: Abbreviated form
- Airline telephony designators:
- AIC → Air India
- IGO → IndiGo
- SEJ → SpiceJet
- AKJ → Akasa Air
- BDA → Blue Dart
- AXB → Air India Express
