sensors Mode-S transponder

8940A2

ICAO 24-bit transponder address · allocated to Bahrain

Currently assigned to A9C-NB · AIRBUS A-321neo

Hex
8940A2
Octal
42240242
Decimal
8,994,978
Country
BH
Tail
A9C-NB
Type
A21N
No current signal · last broadcast 1d ago
Flights observed
4
Distinct callsigns
2
Country
BH
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 8940A2.

Country allocation

The ICAO 24-bit address 8940A2 falls within the block assigned to Bahrain (BH) by ICAO Annex 10, Volume III. Every aircraft registered in Bahrain receives a permanent address from this block at the time of registration; the address stays with the airframe even if the aircraft is re-registered to a different operator within the country.

Callsign history 2 distinct

Callsign Airline Flights Last seen
GFA2052 Gulf Air 3 2026-04-13
GFA2053 - 1 2026-04-13

Recent flights last 4

DateFlightRouteTakeoffLandingDuration
2026-04-13 GFA2053 - Apr 13, 21:55 UTCApr 13, 22:35 UTC40m
2026-04-13 GFA2052 DMM → MAA Apr 13, 18:25 UTCApr 13, 18:40 UTC15m
2026-04-13 GFA2052 DMM → MAA Apr 13, 15:50 UTCApr 13, 18:40 UTC2h 50m
2026-04-13 GFA2052 DMM → MAA Apr 13, 14:30 UTCApr 13, 15:55 UTC1h 25m

About Mode-S

A Mode-S transponder code (also called an "ICAO 24-bit address" or "hex code") is a 6-character hexadecimal identifier permanently assigned to an aircraft when it's first registered. Unlike callsigns (which change with each flight) or registrations (which can change if an aircraft is sold internationally), the Mode-S address stays with the airframe for the life of the aircraft in that country.

Every ADS-B transmission from an aircraft includes its Mode-S address, making it the most reliable way to identify a specific airframe. Flight-tracking services like Apparatus use the Mode-S address as the primary key for tying position broadcasts, callsigns, and ownership records together.

Prefer a tail-number view? See the A9C-NB page for operator, model, and routing details .

Mode-S 8940A2 frequently asked

What is Mode-S code 8940A2?
8940A2 is an ICAO 24-bit transponder address. Allocated to Bahrain. Assigned to A9C-NB.
Where is Mode-S 8940A2 registered?
Mode-S code 8940A2 is allocated to Bahrain (BH). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8940A2 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8940A2, octal 42240242, decimal 8,994,978.
What flights does 8940A2 operate?
Mode-S 8940A2 has broadcast 2 distinct callsigns, including GFA2052, GFA2053.