Apparatus

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sensors Mode-S transponder

4BAA75

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-JSU · AIRBUS A-321

Hex
4BAA75
Octal
22725165
Decimal
4,958,837
Country
TR
Tail
TC-JSU
Type
A321
No current signal · last broadcast 2h ago
Flights observed
335
Distinct callsigns
20
Country
TR
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 4BAA75.

Country allocation

The ICAO 24-bit address 4BAA75 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
THY9VR Turkish Airlines 3 2026-06-04
THY98U - 3 2026-07-09
THY8YU Turkish Airlines 3 2026-05-30
THY8KV Turkish Airlines 3 2026-06-04
THY7AH Turkish Airlines 3 2026-05-22
THY6PM - 3 2026-07-03
THY5UA Turkish Airlines 3 2026-05-22
THY5RE - 3 2026-07-03
THY5MG - 3 2026-07-11
THY5JN - 3 2026-07-08
THY5BF - 3 2026-07-11
THY4MJ - 3 2026-07-08
THY3AT Turkish Airlines 3 2026-05-29
THY2EP - 3 2026-07-09
THY1HC Turkish Airlines 3 2026-06-10
THY9XJ - 2 2026-06-17
THY9VT Turkish Airlines 2 2026-04-16
THY9KM - 2 2026-07-07
THY9FU - 2 2026-05-30
THY9EU Turkish Airlines 2 2026-06-01

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-15 THY3SW - Jul 15, 04:20 UTCJul 15, 05:05 UTC45m
2026-07-15 THY3441 - Jul 15, 01:40 UTCJul 15, 02:30 UTC50m
2026-07-14 THY3440 - Jul 14, 23:20 UTCJul 15, 00:05 UTC45m
2026-07-13 THY5TV - Jul 13, 18:50 UTCJul 14, 05:00 UTC10h 10m
2026-07-13 THY8SA - Jul 13, 03:30 UTCJul 13, 04:25 UTC55m
2026-07-12 THY9XH - Jul 12, 17:10 UTCJul 12, 20:15 UTC3h 5m
2026-07-12 THY4BZ - Jul 12, 12:30 UTCJul 12, 15:35 UTC3h 5m
2026-07-12 THY8KT - Jul 12, 05:55 UTCJul 12, 10:05 UTC4h 10m
2026-07-11 THY9EJ - Jul 11, 20:00 UTCJul 11, 20:55 UTC55m
2026-07-11 THY8KU - Jul 11, 17:35 UTCJul 11, 18:30 UTC55m
2026-07-11 THY5MG - Jul 11, 14:50 UTCJul 11, 15:40 UTC50m
2026-07-11 THY5BF - Jul 11, 12:30 UTCJul 11, 13:30 UTC1h 0m
2026-07-11 THY7YP - Jul 11, 05:10 UTCJul 11, 07:20 UTC2h 10m
2026-07-11 THY3451 - Jul 11, 00:30 UTCJul 11, 03:01 UTC2h 30m
2026-07-10 THY3FE - Jul 10, 18:15 UTCJul 10, 18:55 UTC40m
2026-07-10 THY5MG - Jul 10, 14:45 UTCJul 10, 15:45 UTC1h 0m
2026-07-10 THY5BF - Jul 10, 12:30 UTCJul 10, 13:30 UTC1h 0m
2026-07-10 THY5EA - Jul 10, 07:30 UTCJul 10, 08:45 UTC1h 15m
2026-07-10 THY2EG - Jul 10, 04:55 UTCJul 10, 06:15 UTC1h 20m
2026-07-09 THY2EP - Jul 9, 18:20 UTCJul 9, 19:35 UTC1h 15m
2026-07-09 THY98U - Jul 9, 16:05 UTCJul 9, 17:10 UTC1h 5m
2026-07-09 THY6NJ - Jul 9, 09:35 UTCJul 9, 13:10 UTC3h 35m
2026-07-09 THY40H - Jul 9, 05:25 UTCJul 9, 07:20 UTC1h 55m
2026-07-08 THY5EJ - Jul 8, 19:15 UTCJul 8, 21:30 UTC2h 15m
2026-07-08 THY4RQ - Jul 8, 13:30 UTCJul 8, 17:05 UTC3h 35m
2026-07-08 THY4MJ - Jul 8, 10:15 UTCJul 8, 10:55 UTC40m
2026-07-08 THY5JN - Jul 8, 08:15 UTCJul 8, 08:50 UTC35m
2026-07-08 THY3SW - Jul 8, 04:15 UTCJul 8, 05:05 UTC50m
2026-07-08 THY3441 - Jul 8, 00:45 UTCJul 8, 01:45 UTC1h 0m
2026-07-07 THY3440 - Jul 7, 22:15 UTCJul 7, 23:10 UTC55m
2026-07-07 THY3CV - Jul 7, 19:50 UTCJul 7, 20:35 UTC45m
2026-07-07 THY5MG - Jul 7, 14:50 UTCJul 7, 15:55 UTC1h 5m
2026-07-07 THY5BF - Jul 7, 12:45 UTCJul 7, 13:40 UTC55m
2026-07-07 THY5DX - Jul 7, 07:35 UTCJul 7, 08:45 UTC1h 10m
2026-07-07 THY9KM - Jul 7, 04:50 UTCJul 7, 06:00 UTC1h 10m
2026-07-06 THY7HL - Jul 6, 20:00 UTCJul 6, 21:00 UTC1h 0m
2026-07-06 THY4GE - Jul 6, 17:55 UTCJul 6, 18:45 UTC50m
2026-07-06 THY1928 - Jul 6, 12:15 UTCJul 6, 15:30 UTC3h 15m
2026-07-06 THY2LA - Jul 6, 07:15 UTCJul 6, 11:00 UTC3h 45m
2026-07-06 THY6NH - Jul 6, 04:25 UTCJul 6, 05:10 UTC45m
2026-07-05 THY3313 - Jul 5, 23:35 UTCJul 6, 01:00 UTC1h 25m
2026-07-05 THY3312 - Jul 5, 16:10 UTCJul 5, 22:00 UTC5h 50m
2026-07-05 THY2GS - Jul 5, 10:10 UTCJul 5, 14:25 UTC4h 15m
2026-07-05 THY7AY - Jul 5, 05:25 UTCJul 5, 08:35 UTC3h 10m
2026-07-04 THY2PH - Jul 4, 17:20 UTCJul 4, 20:30 UTC3h 10m
2026-07-04 THY60C CDG → IST Jul 4, 11:45 UTCJul 4, 15:55 UTC4h 10m
2026-07-04 THY7LX - Jul 4, 08:05 UTCJul 4, 09:10 UTC1h 5m
2026-07-04 THY8ES - Jul 4, 05:15 UTCJul 4, 06:15 UTC1h 0m
2026-07-03 THY4AF - Jul 3, 18:40 UTCJul 3, 19:40 UTC1h 0m
2026-07-03 THY5DQ - Jul 3, 15:55 UTCJul 3, 16:55 UTC1h 0m

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-JSU page for operator, model, and routing details .

Mode-S 4BAA75 frequently asked

What is Mode-S code 4BAA75?
4BAA75 is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-JSU.
Where is Mode-S 4BAA75 registered?
Mode-S code 4BAA75 is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BAA75 broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BAA75, octal 22725165, decimal 4,958,837.
What flights does 4BAA75 operate?
Mode-S 4BAA75 has broadcast 20 distinct callsigns, including THY9VR, THY98U, THY8YU, THY8KV, THY7AH.