Apparatus

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sensors Mode-S transponder

4BA90C

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-JHL · BOEING 737-800

Hex
4BA90C
Octal
22724414
Decimal
4,958,476
Country
TR
Tail
TC-JHL
Type
B738
No current signal · last broadcast Jul 26, 17:45 UTC
Flights observed
379
Distinct callsigns
20
Country
TR
Last broadcast
Jul 26, 17:45 UTC

Last known position

Most recent position reported by Mode-S 4BA90C.

Country allocation

The ICAO 24-bit address 4BA90C 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
THY9YD - 5 2026-07-19
THY7GJ - 5 2026-06-22
THY7DH Turkish Airlines 5 2026-07-21
THY5VY - 5 2026-07-19
THY5HK - 5 2026-07-21
THY9NS Turkish Airlines 4 2026-05-27
THY91B Turkish Airlines 4 2026-05-26
THY8YA - 4 2026-06-22
THY8RZ Turkish Airlines 4 2026-07-25
THY6ZX Turkish Airlines 4 2026-04-26
THY5EL Turkish Airlines 4 2026-06-08
THY4SK Turkish Airlines 4 2026-04-26
THY3RF Turkish Airlines 4 2026-06-08
THY3GR - 4 2026-07-15
THY2AW - 4 2026-06-24
THY1HM - 4 2026-06-16
THY9LV - 3 2026-07-13
THY9GL - 3 2026-07-01
THY8XT - 3 2026-06-29
THY8WX - 3 2026-04-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 THY2LG TZX → IST Jul 26, 16:20 UTCJul 26, 17:45 UTC1h 25m
2026-07-26 THY6TP IST → TZX Jul 26, 15:00 UTCJul 26, 15:10 UTC10m
2026-07-26 THY6TP IST → TZX Jul 26, 13:50 UTCJul 26, 14:20 UTC30m
2026-07-26 THY4ZA KSY → IST Jul 26, 09:50 UTCJul 26, 10:10 UTC20m
2026-07-26 THY4ZA KSY → IST Jul 26, 05:40 UTCJul 26, 09:10 UTC3h 31m
2026-07-25 THY88L IST → ADB Jul 25, 19:40 UTCJul 25, 20:05 UTC25m
2026-07-25 THY88L IST → ADB Jul 25, 17:35 UTCJul 25, 18:55 UTC1h 20m
2026-07-25 THY2TL IST → MXP Jul 25, 13:50 UTCJul 25, 15:40 UTC1h 50m
2026-07-25 THY8RZ IST → SSH Jul 25, 05:10 UTCJul 25, 11:10 UTC6h 0m
2026-07-24 THY6GY SAW → AMS Jul 24, 16:00 UTCJul 24, 18:45 UTC2h 45m
2026-07-24 THY6ZM IST → AMS Jul 24, 11:05 UTCJul 24, 14:10 UTC3h 5m
2026-07-24 THY6ER IST → STR Jul 24, 05:00 UTCJul 24, 08:50 UTC3h 50m
2026-07-23 THY2ES IST → BIO Jul 23, 18:15 UTCJul 23, 23:00 UTC4h 45m
2026-07-23 THY2JE CPH → IST Jul 23, 13:15 UTCJul 23, 15:55 UTC2h 40m
2026-07-23 THY7PU - Jul 23, 09:05 UTCJul 23, 11:45 UTC2h 40m
2026-07-23 THY5WX IST → GNY Jul 23, 06:15 UTCJul 23, 06:55 UTC40m
2026-07-23 THY2HR IST → STR Jul 23, 04:25 UTCJul 23, 05:10 UTC45m
2026-07-22 THY2FZ DNZ → IST Jul 22, 16:30 UTCJul 22, 19:35 UTC3h 5m
2026-07-21 THY7DH IST → BRU Jul 21, 16:55 UTCJul 21, 19:30 UTC2h 35m
2026-07-21 THY5HK - Jul 21, 12:50 UTCJul 21, 15:45 UTC2h 55m
2026-07-21 THY642 BEN → IST Jul 21, 08:40 UTCJul 21, 09:50 UTC1h 10m
2026-07-21 THY641 IST → BEN Jul 21, 04:00 UTCJul 21, 05:15 UTC1h 15m
2026-07-20 THY7ZA - Jul 20, 18:55 UTCJul 20, 22:35 UTC3h 40m
2026-07-20 THY2WF IST → OPO Jul 20, 12:50 UTCJul 20, 17:25 UTC4h 35m
2026-07-20 THY6RD ADA → IST Jul 20, 04:25 UTCJul 20, 05:45 UTC1h 20m
2026-07-19 THY4YQ AYT → ECN Jul 19, 22:25 UTCJul 19, 23:40 UTC1h 15m
2026-07-19 THY9YD - Jul 19, 19:05 UTCJul 19, 20:05 UTC1h 0m
2026-07-19 THY5VY - Jul 19, 16:55 UTCJul 19, 17:50 UTC55m
2026-07-19 THY273 IST → RMO Jul 19, 11:00 UTCJul 19, 11:40 UTC40m
2026-07-19 THY1MU - Jul 19, 07:30 UTCJul 19, 08:25 UTC55m
2026-07-18 THY6AE BEY → IST Jul 18, 16:40 UTCJul 18, 17:45 UTC1h 5m
2026-07-18 THY7NQ ESB → IST Jul 18, 14:15 UTCJul 18, 14:45 UTC30m
2026-07-18 THY4XH IST → EZS Jul 18, 12:35 UTCJul 18, 12:55 UTC20m
2026-07-18 THY511 - Jul 18, 00:00 UTCJul 18, 08:20 UTC8h 21m
2026-07-17 THY1GN TRN → IST Jul 17, 17:20 UTCJul 17, 19:30 UTC2h 10m
2026-07-17 THY9WX - Jul 17, 13:15 UTCJul 17, 15:49 UTC2h 35m
2026-07-17 THY1146 MRA → IST Jul 17, 08:20 UTCJul 17, 10:35 UTC2h 15m
2026-07-17 THY1145 IST → MRA Jul 17, 03:55 UTCJul 17, 06:15 UTC2h 20m
2026-07-16 THY9CP - Jul 16, 17:10 UTCJul 16, 17:40 UTC30m
2026-07-16 THY1YS - Jul 16, 15:19 UTCJul 16, 15:40 UTC20m
2026-07-16 THY1CB - Jul 16, 12:14 UTCJul 16, 13:05 UTC50m
2026-07-16 THY2522 - Jul 16, 10:10 UTCJul 16, 10:59 UTC50m
2026-07-15 THY1MD - Jul 15, 11:55 UTCJul 15, 16:30 UTC4h 35m
2026-07-15 THY3GR - Jul 15, 05:40 UTCJul 15, 09:45 UTC4h 5m
2026-07-14 THY2FZ - Jul 14, 18:40 UTCJul 14, 19:05 UTC25m
2026-07-14 THY4LD - Jul 14, 15:55 UTCJul 14, 16:25 UTC30m
2026-07-14 THY3AN - Jul 14, 13:00 UTCJul 14, 13:50 UTC50m
2026-07-14 THY9UH - Jul 14, 11:05 UTCJul 14, 11:35 UTC30m
2026-07-14 THY7BM - Jul 14, 07:30 UTCJul 14, 08:40 UTC1h 10m
2026-07-14 THY4PM - Jul 14, 05:40 UTCJul 14, 06:40 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-JHL page for operator, model, and routing details .

Mode-S 4BA90C frequently asked

What is Mode-S code 4BA90C?
4BA90C is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-JHL.
Where is Mode-S 4BA90C registered?
Mode-S code 4BA90C is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BA90C broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 17:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BA90C, octal 22724414, decimal 4,958,476.
What flights does 4BA90C operate?
Mode-S 4BA90C has broadcast 20 distinct callsigns, including THY9YD, THY7GJ, THY7DH, THY5VY, THY5HK.