Apparatus

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sensors Mode-S transponder

4BA9AC

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-JML · AIRBUS A-321

Hex
4BA9AC
Octal
22724654
Decimal
4,958,636
Country
TR
Tail
TC-JML
Type
A321
No current signal · last broadcast Jul 26, 21:15 UTC
Flights observed
417
Distinct callsigns
20
Country
TR
Last broadcast
Jul 26, 21:15 UTC

Last known position

Most recent position reported by Mode-S 4BA9AC.

Country allocation

The ICAO 24-bit address 4BA9AC 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
THY7VL - 8 2026-07-12
THY6LJ - 8 2026-07-12
THY8RA - 6 2026-07-06
THY7NX - 6 2026-07-06
THY7HL Turkish Airlines 6 2026-07-26
THY6WR Turkish Airlines 6 2026-07-21
THY5TV Turkish Airlines 6 2026-06-21
THY4GE Turkish Airlines 6 2026-07-26
THY1FE - 6 2026-07-21
THY8DT - 5 2026-05-30
THY6TG - 5 2026-07-11
THY6SJ - 5 2026-07-12
THY5XG - 5 2026-07-07
THY2RE Turkish Airlines 5 2026-05-30
THY1CK - 5 2026-07-11
THY9JC Turkish Airlines 4 2026-07-19
THY9HW Turkish Airlines 4 2026-07-19
THY9EJ Turkish Airlines 4 2026-05-22
THY8RS Turkish Airlines 4 2026-05-30
THY7VK - 4 2026-07-10

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 THY7HL BJV → IST Jul 26, 20:30 UTCJul 26, 21:15 UTC45m
2026-07-26 THY4GE IST → BJV Jul 26, 18:15 UTCJul 26, 18:50 UTC35m
2026-07-26 THY2LX GZT → IST Jul 26, 14:40 UTCJul 26, 15:30 UTC50m
2026-07-26 THY4CV IST → BJV Jul 26, 12:25 UTCJul 26, 13:20 UTC55m
2026-07-26 THY3QL NKT → IST Jul 26, 05:45 UTCJul 26, 10:45 UTC5h 1m
2026-07-25 THY1VR IST → VKO Jul 25, 14:15 UTCJul 25, 22:45 UTC8h 30m
2026-07-25 THY29B AYT → IST Jul 25, 09:10 UTCJul 25, 10:25 UTC1h 15m
2026-07-25 THY5CJ NUE → IST Jul 25, 06:50 UTCJul 25, 07:45 UTC55m
2026-07-25 THY4GX BJV → IST Jul 25, 01:15 UTCJul 25, 02:15 UTC1h 0m
2026-07-24 THY2EA IST → BJV Jul 24, 23:10 UTCJul 24, 23:55 UTC45m
2026-07-24 THY3MB DLM → IST Jul 24, 17:50 UTCJul 24, 18:45 UTC55m
2026-07-24 THY3056 BJV → LED Jul 24, 07:15 UTCJul 24, 15:50 UTC8h 35m
2026-07-24 THY6977 - Jul 24, 04:25 UTCJul 24, 05:10 UTC45m
2026-07-22 THY2LX GZT → IST Jul 22, 14:25 UTCJul 22, 15:40 UTC1h 15m
2026-07-22 THY4CV - Jul 22, 12:20 UTCJul 22, 13:10 UTC50m
2026-07-22 THY4ZA - Jul 22, 10:20 UTCJul 22, 11:25 UTC1h 5m
2026-07-21 THY8HU SAW → AYT Jul 21, 19:20 UTCJul 21, 20:35 UTC1h 15m
2026-07-21 THY439 IST → DBV Jul 21, 16:20 UTCJul 21, 17:55 UTC1h 35m
2026-07-21 THY2DH - Jul 21, 13:10 UTCJul 21, 14:45 UTC1h 35m
2026-07-21 THY9XR IST → KSY Jul 21, 10:05 UTCJul 21, 11:25 UTC1h 20m
2026-07-21 THY1FE - Jul 21, 05:45 UTCJul 21, 06:40 UTC55m
2026-07-21 THY6WR IST → BJV Jul 21, 03:45 UTCJul 21, 04:40 UTC55m
2026-07-20 THY68G - Jul 20, 16:05 UTCJul 20, 17:05 UTC1h 0m
2026-07-20 THY2EV - Jul 20, 13:50 UTCJul 20, 14:35 UTC45m
2026-07-20 THY1QU IST → BHX Jul 20, 11:10 UTCJul 20, 12:05 UTC55m
2026-07-20 THY6DT - Jul 20, 08:35 UTCJul 20, 09:25 UTC50m
2026-07-20 THY1FE - Jul 20, 06:00 UTCJul 20, 06:55 UTC55m
2026-07-20 THY6WR IST → BJV Jul 20, 03:50 UTCJul 20, 04:45 UTC55m
2026-07-19 THY7XV DLM → IST Jul 19, 18:10 UTCJul 19, 19:00 UTC50m
2026-07-19 THY9HW IST → OTP Jul 19, 16:05 UTCJul 19, 16:45 UTC40m
2026-07-19 THY6VH AYT → IST Jul 19, 12:35 UTCJul 19, 13:35 UTC1h 0m
2026-07-19 THY9JC IST → AYT Jul 19, 10:15 UTCJul 19, 11:20 UTC1h 5m
2026-07-17 THY7XV DLM → IST Jul 17, 18:05 UTCJul 17, 19:00 UTC55m
2026-07-17 THY9HW IST → OTP Jul 17, 16:10 UTCJul 17, 16:44 UTC35m
2026-07-17 THY4HN - Jul 17, 11:55 UTCJul 17, 12:50 UTC55m
2026-07-17 THY5PB - Jul 17, 09:40 UTCJul 17, 10:25 UTC45m
2026-07-16 THY5011 JED → IST Jul 16, 18:15 UTCJul 17, 07:44 UTC13h 30m
2026-07-16 THY6949 - Jul 16, 15:35 UTCJul 16, 16:05 UTC30m
2026-07-15 THY3SH - Jul 15, 16:50 UTCJul 15, 21:05 UTC4h 15m
2026-07-15 THY49F - Jul 15, 12:50 UTCJul 15, 13:30 UTC40m
2026-07-15 THY6YS - Jul 15, 11:15 UTCJul 15, 11:50 UTC35m
2026-07-15 THY5129 - Jul 15, 01:30 UTCJul 15, 08:50 UTC7h 20m
2026-07-14 THY3CV - Jul 14, 19:45 UTCJul 14, 20:35 UTC50m
2026-07-14 THY68G - Jul 14, 15:55 UTCJul 14, 16:55 UTC1h 0m
2026-07-14 THY2EV - Jul 14, 13:45 UTCJul 14, 14:35 UTC50m
2026-07-14 THY2VS - Jul 14, 10:00 UTCJul 14, 11:05 UTC1h 5m
2026-07-14 THY3RB - Jul 14, 07:50 UTCJul 14, 08:40 UTC50m
2026-07-13 THY20N - Jul 13, 18:05 UTCJul 13, 19:20 UTC1h 15m
2026-07-13 THY4TL - Jul 13, 15:40 UTCJul 13, 16:05 UTC25m
2026-07-13 THY6VH - Jul 13, 12:00 UTCJul 13, 12:55 UTC55m

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

Mode-S 4BA9AC frequently asked

What is Mode-S code 4BA9AC?
4BA9AC is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-JML.
Where is Mode-S 4BA9AC registered?
Mode-S code 4BA9AC is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BA9AC broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BA9AC, octal 22724654, decimal 4,958,636.
What flights does 4BA9AC operate?
Mode-S 4BA9AC has broadcast 20 distinct callsigns, including THY7VL, THY6LJ, THY8RA, THY7NX, THY7HL.