sensors Mode-S transponder

4BA9AA

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-JMJ · AIRBUS A-321

Hex
4BA9AA
Octal
22724652
Decimal
4,958,634
Country
TR
Tail
TC-JMJ
Type
A321
No current signal · last broadcast 45m ago
Flights observed
296
Distinct callsigns
20
Country
TR
Last broadcast
45m ago

Last known position

Most recent position reported by Mode-S 4BA9AA.

Country allocation

The ICAO 24-bit address 4BA9AA falls within the block assigned to Turkey (TR) by ICAO Annex 10, Volume III. Every aircraft registered in Turkey 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 20 distinct

Callsign Airline Flights Last seen
THY1QU - 10 2026-07-10
THY6DT - 9 2026-07-10
THY2MT - 9 2026-07-06
THY7PW - 8 2026-07-06
THY2GN - 6 2026-07-13
THY4VX - 5 2026-07-12
THY3SF - 5 2026-07-06
THY1WS - 5 2026-07-12
THY6KC - 4 2026-07-01
THY6AC - 4 2026-07-02
THY5UZ - 4 2026-07-01
THY5SX - 4 2026-07-02
THY5JN - 4 2026-06-21
THY4MJ - 4 2026-06-21
THY4BS - 4 2026-07-01
THY2VN - 4 2026-07-01
THY8RA - 3 2026-07-13
THY8NG - 3 2026-06-20
THY87N Turkish Airlines 3 2026-05-21
THY7NX - 3 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 THY1XT - Jul 14, 13:20 UTCJul 14, 14:20 UTC1h 0m
2026-07-14 THY1NQ - Jul 14, 11:05 UTCJul 14, 12:00 UTC55m
2026-07-14 THY7MV - Jul 14, 05:55 UTCJul 14, 06:50 UTC55m
2026-07-14 THY2TF - Jul 14, 03:30 UTCJul 14, 04:25 UTC55m
2026-07-13 THY8RA - Jul 13, 20:20 UTCJul 13, 20:55 UTC35m
2026-07-13 THY7NX - Jul 13, 18:20 UTCJul 13, 18:45 UTC25m
2026-07-13 THY2GN - Jul 13, 13:25 UTCJul 13, 16:25 UTC3h 0m
2026-07-13 THY1CK - Jul 13, 09:10 UTCJul 13, 10:00 UTC50m
2026-07-13 THY6TG - Jul 13, 07:01 UTCJul 13, 08:01 UTC1h 0m
2026-07-12 THY6GT - Jul 12, 18:30 UTCJul 12, 22:10 UTC3h 40m
2026-07-12 THY4VX - Jul 12, 15:35 UTCJul 12, 16:15 UTC40m
2026-07-12 THY1WS - Jul 12, 13:35 UTCJul 12, 14:15 UTC40m
2026-07-12 THY4HE - Jul 12, 09:25 UTCJul 12, 10:20 UTC55m
2026-07-12 THY7SJ - Jul 12, 07:10 UTCJul 12, 07:50 UTC40m
2026-07-11 THY3GY - Jul 11, 20:35 UTCJul 11, 21:50 UTC1h 15m
2026-07-11 THY1DU - Jul 11, 18:20 UTCJul 11, 19:20 UTC1h 0m
2026-07-11 THY1EW - Jul 11, 11:40 UTCJul 11, 12:10 UTC30m
2026-07-11 THY3ZY - Jul 11, 08:01 UTCJul 11, 09:35 UTC1h 35m
2026-07-11 THY4ZG - Jul 11, 04:55 UTCJul 11, 06:30 UTC1h 35m
2026-07-10 THY7JK - Jul 10, 18:35 UTCJul 11, 01:05 UTC6h 30m
2026-07-10 THY1QU - Jul 10, 11:15 UTCJul 10, 12:15 UTC1h 0m
2026-07-10 THY6DT - Jul 10, 08:55 UTCJul 10, 09:55 UTC1h 0m
2026-07-09 THY2XK - Jul 9, 15:25 UTCJul 9, 19:20 UTC3h 55m
2026-07-09 THY1QU - Jul 9, 11:10 UTCJul 9, 12:05 UTC55m
2026-07-09 THY6DT - Jul 9, 08:55 UTCJul 9, 09:50 UTC55m
2026-07-09 THY2LT - Jul 9, 01:35 UTCJul 9, 02:30 UTC55m
2026-07-08 THY8KC - Jul 8, 23:25 UTCJul 9, 00:20 UTC55m
2026-07-08 THY7HL - Jul 8, 20:10 UTCJul 8, 21:05 UTC55m
2026-07-08 THY4GE - Jul 8, 18:00 UTCJul 8, 18:55 UTC55m
2026-07-08 THY2LX - Jul 8, 14:40 UTCJul 8, 15:30 UTC50m
2026-07-08 THY4CV - Jul 8, 12:40 UTCJul 8, 13:30 UTC50m
2026-07-07 THY4VY - Jul 7, 20:10 UTCJul 7, 20:55 UTC45m
2026-07-07 THY2TY - Jul 7, 18:15 UTCJul 7, 18:50 UTC35m
2026-07-07 THY8CH - Jul 7, 13:15 UTCJul 7, 14:20 UTC1h 5m
2026-07-07 THY1MA - Jul 7, 11:10 UTCJul 7, 11:55 UTC45m
2026-07-07 THY1FE - Jul 7, 06:10 UTCJul 7, 07:10 UTC1h 0m
2026-07-07 THY6WR - Jul 7, 03:55 UTCJul 7, 04:40 UTC45m
2026-07-06 THY3MB - Jul 6, 17:30 UTCJul 6, 18:20 UTC50m
2026-07-06 THY2EZ - Jul 6, 15:15 UTCJul 6, 16:10 UTC55m
2026-07-06 THY3SF - Jul 6, 10:10 UTCJul 6, 13:25 UTC3h 15m
2026-07-06 THY2MT - Jul 6, 07:35 UTCJul 6, 08:25 UTC50m
2026-07-06 THY7PW - Jul 6, 05:25 UTCJul 6, 06:10 UTC45m
2026-07-05 THY3GY - Jul 5, 20:45 UTCJul 5, 22:00 UTC1h 15m
2026-07-05 THY1DU - Jul 5, 18:05 UTCJul 5, 19:10 UTC1h 5m
2026-07-05 THY2LX - Jul 5, 15:05 UTCJul 5, 16:00 UTC55m
2026-07-05 THY4CV - Jul 5, 12:45 UTCJul 5, 13:40 UTC55m
2026-07-05 THY4HE - Jul 5, 09:25 UTCJul 5, 10:25 UTC1h 0m
2026-07-05 THY7SJ - Jul 5, 07:15 UTCJul 5, 07:55 UTC40m
2026-07-05 THY991 - Jul 5, 00:35 UTCJul 5, 01:55 UTC1h 20m
2026-07-04 THY4TX - Jul 4, 19:30 UTCJul 4, 20:40 UTC1h 10m

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 TC-JMJ page for operator, model, and routing details .

Mode-S 4BA9AA frequently asked

What is Mode-S code 4BA9AA?
4BA9AA is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-JMJ.
Where is Mode-S 4BA9AA registered?
Mode-S code 4BA9AA is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BA9AA broadcasting right now?
No active broadcast right now. Last signal was 45m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BA9AA, octal 22724652, decimal 4,958,634.
What flights does 4BA9AA operate?
Mode-S 4BA9AA has broadcast 20 distinct callsigns, including THY1QU, THY6DT, THY2MT, THY7PW, THY2GN.