Apparatus

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sensors Mode-S transponder

4BA90D

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-JHM · BOEING 737-800

Hex
4BA90D
Octal
22724415
Decimal
4,958,477
Country
TR
Tail
TC-JHM
Type
B738
No current signal · last broadcast Jul 26, 21:15 UTC
Flights observed
245
Distinct callsigns
20
Country
TR
Last broadcast
Jul 26, 21:15 UTC

Last known position

Most recent position reported by Mode-S 4BA90D.

Country allocation

The ICAO 24-bit address 4BA90D 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
THY7DB Turkish Airlines 10 2026-07-25
THY9YQ - 6 2026-07-10
THY7MT - 6 2026-07-15
THY8RZ - 4 2026-07-10
THY4RT - 4 2026-07-03
THY1SL Turkish Airlines 4 2026-07-18
THY4TU - 3 2026-06-26
THY3XQ - 3 2026-06-26
THY3PX - 3 2026-07-11
THY3HU Turkish Airlines 3 2026-07-18
THY9WX - 2 2026-07-03
THY9UC - 2 2026-07-09
THY9SM Turkish Airlines 2 2026-06-01
THY9GL - 2 2026-07-02
THY9BS - 2 2026-07-06
THY7JD - 2 2026-07-13
THY7DH - 2 2026-07-02
THY6FV - 2 2026-07-20
THY6EB Turkish Airlines 2 2026-07-22
THY5VZ - 2 2026-07-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 THY479 IST → LED Jul 26, 18:55 UTCJul 26, 21:15 UTC2h 20m
2026-07-26 THY1VT AMM → IST Jul 26, 14:00 UTCJul 26, 16:15 UTC2h 15m
2026-07-26 THY1LB NAP → IST Jul 26, 10:00 UTCJul 26, 12:50 UTC2h 50m
2026-07-25 THY7DB IST → LED Jul 25, 16:55 UTCJul 25, 20:05 UTC3h 10m
2026-07-25 THY6KQ IST → AMM Jul 25, 13:35 UTCJul 25, 14:05 UTC30m
2026-07-25 THY4TN IST → TZX Jul 25, 10:55 UTCJul 25, 12:15 UTC1h 20m
2026-07-25 THY511 PZU → IST Jul 25, 00:10 UTCJul 25, 08:50 UTC8h 40m
2026-07-24 THY4KZ NCE → IST Jul 24, 14:45 UTCJul 24, 17:50 UTC3h 5m
2026-07-24 THY8PQ SAW → VIE Jul 24, 12:30 UTCJul 24, 13:10 UTC40m
2026-07-24 THY9YW TLS → IST Jul 24, 10:35 UTCJul 24, 10:55 UTC20m
2026-07-24 THY7BM GZP → IST Jul 24, 07:35 UTCJul 24, 08:45 UTC1h 10m
2026-07-24 THY4PM ASR → IST Jul 24, 05:35 UTCJul 24, 06:25 UTC50m
2026-07-23 THY7VM IST → ZAG Jul 23, 19:20 UTCJul 23, 20:55 UTC1h 35m
2026-07-23 THY6VU IST → ADB Jul 23, 15:40 UTCJul 23, 17:30 UTC1h 50m
2026-07-23 THY8SU GVA → IST Jul 23, 10:05 UTCJul 23, 13:40 UTC3h 35m
2026-07-23 THY5XV IST → EDI Jul 23, 04:40 UTCJul 23, 08:40 UTC4h 0m
2026-07-22 THY5RC IST → VIE Jul 22, 23:30 UTCJul 23, 00:25 UTC55m
2026-07-22 THY9SG SZF → SAW Jul 22, 21:15 UTCJul 22, 22:15 UTC1h 0m
2026-07-22 THY6EB IST → CDG Jul 22, 16:05 UTCJul 22, 17:20 UTC1h 15m
2026-07-22 THY5VZ - Jul 22, 13:50 UTCJul 22, 15:05 UTC1h 15m
2026-07-22 THY5QM IST → BGW Jul 22, 03:55 UTCJul 22, 04:25 UTC30m
2026-07-21 THY9VU IST → VAR Jul 21, 19:10 UTCJul 21, 20:15 UTC1h 5m
2026-07-21 THY4PR AYT → IST Jul 21, 16:30 UTCJul 21, 17:35 UTC1h 5m
2026-07-21 THY17V - Jul 21, 13:00 UTCJul 21, 14:20 UTC1h 20m
2026-07-21 THY5TD AYT → BER Jul 21, 10:35 UTCJul 21, 11:45 UTC1h 10m
2026-07-21 THY1748 OSL → IST Jul 21, 05:35 UTCJul 21, 08:45 UTC3h 10m
2026-07-20 THY1GS DTW → IST Jul 20, 17:35 UTCJul 20, 20:45 UTC3h 10m
2026-07-20 THY5ZC ADB → IST Jul 20, 14:05 UTCJul 20, 14:45 UTC40m
2026-07-20 THY9JV ORN → IST Jul 20, 12:15 UTCJul 20, 12:55 UTC40m
2026-07-20 THY8NL - Jul 20, 05:35 UTCJul 20, 09:05 UTC3h 30m
2026-07-20 THY6FV - Jul 20, 02:00 UTCJul 20, 02:15 UTC15m
2026-07-19 THY8PD - Jul 19, 23:00 UTCJul 19, 23:30 UTC30m
2026-07-19 THY9LK - Jul 19, 18:25 UTCJul 19, 20:35 UTC2h 10m
2026-07-19 THY5EC IST → ALG Jul 19, 12:40 UTCJul 19, 15:50 UTC3h 10m
2026-07-18 THY7DB IST → LED Jul 18, 17:00 UTCJul 19, 00:50 UTC7h 50m
2026-07-18 THY3HU LED → IST Jul 18, 10:05 UTCJul 18, 13:10 UTC3h 5m
2026-07-18 THY1SL IST → ECN Jul 18, 05:20 UTCJul 18, 08:15 UTC2h 55m
2026-07-18 THY2JG - Jul 18, 02:29 UTCJul 18, 03:00 UTC31m
2026-07-17 THY1HC IST → VKO Jul 17, 17:44 UTCJul 17, 20:20 UTC2h 35m
2026-07-17 THY17V - Jul 17, 13:05 UTCJul 17, 14:35 UTC1h 30m
2026-07-17 THY5TD - Jul 17, 10:40 UTCJul 17, 11:50 UTC1h 10m
2026-07-17 THY8FB - Jul 17, 07:30 UTCJul 17, 08:40 UTC1h 10m
2026-07-17 THY7NU MLX → IST Jul 17, 05:15 UTCJul 17, 06:20 UTC1h 5m
2026-07-16 THY6FV - Jul 16, 23:15 UTCJul 17, 02:25 UTC3h 10m
2026-07-16 THY1KA - Jul 16, 17:35 UTCJul 16, 20:35 UTC3h 0m
2026-07-16 THY2JE - Jul 16, 13:15 UTCJul 16, 16:00 UTC2h 45m
2026-07-16 THY7PU - Jul 16, 09:10 UTCJul 16, 11:45 UTC2h 35m
2026-07-15 THY7MT - Jul 15, 22:40 UTCJul 16, 06:25 UTC7h 45m
2026-07-15 THY6EB ECN → SAW Jul 15, 16:20 UTCJul 15, 17:35 UTC1h 15m
2026-07-15 THY5VZ - Jul 15, 14:00 UTCJul 15, 15:05 UTC1h 5m

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

Mode-S 4BA90D frequently asked

What is Mode-S code 4BA90D?
4BA90D is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-JHM.
Where is Mode-S 4BA90D registered?
Mode-S code 4BA90D is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BA90D 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 4BA90D, octal 22724415, decimal 4,958,477.
What flights does 4BA90D operate?
Mode-S 4BA90D has broadcast 20 distinct callsigns, including THY7DB, THY9YQ, THY7MT, THY8RZ, THY4RT.