Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

4BA904

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-JHD · BOEING 737-800

Hex
4BA904
Octal
22724404
Decimal
4,958,468
Country
TR
Tail
TC-JHD
Type
B738
No current signal · last broadcast 1h ago
Flights observed
328
Distinct callsigns
20
Country
TR
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 4BA904.

Country allocation

The ICAO 24-bit address 4BA904 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
TKJ1ML - 16 2026-07-19
TKJ2HX - 11 2026-07-13
TKJ3SY Tarkim Havacilik 10 2026-07-22
TKJ8RG - 9 2026-07-17
TKJ318 - 9 2026-07-14
TKJ317 - 9 2026-07-14
TKJ8AT - 7 2026-07-15
TKJ341 - 7 2026-07-09
TKJ9QF Tarkim Havacilik 6 2026-07-21
TKJ1PR - 6 2026-07-15
TKJ8MY - 5 2026-05-06
TKJ87E - 4 2026-07-03
TKJ7AJ - 4 2026-06-21
TKJ5DP Tarkim Havacilik 4 2026-06-15
TKJ2FM - 4 2026-07-23
TKJ1ZP Tarkim Havacilik 4 2026-04-25
TKJ1QC Tarkim Havacilik 4 2026-07-23
TKJ14N - 4 2026-07-03
TKJ8XR Tarkim Havacilik 3 2026-07-21
TKJ8TK - 3 2026-07-02

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-23 TKJ60Q AYT → SAW Jul 23, 22:20 UTCJul 23, 22:35 UTC15m
2026-07-23 TKJ1PF SAW → ADB Jul 23, 16:35 UTCJul 23, 20:50 UTC4h 15m
2026-07-23 TKJ2FM - Jul 23, 12:25 UTCJul 23, 13:10 UTC45m
2026-07-23 TKJ1QC SAW → SKP Jul 23, 10:00 UTCJul 23, 10:55 UTC55m
2026-07-22 TKJ3SY ZRH → SAW Jul 22, 22:05 UTCJul 23, 06:50 UTC8h 45m
2026-07-22 TKJ5257 ESB → SAW Jul 22, 18:00 UTCJul 22, 18:40 UTC40m
2026-07-22 TKJ5256 SAW → ESB Jul 22, 15:25 UTCJul 22, 16:10 UTC45m
2026-07-22 TKJ9ZE - Jul 22, 11:40 UTCJul 22, 13:55 UTC2h 15m
2026-07-22 TKJ7QM GNY → ESB Jul 22, 04:20 UTCJul 22, 04:55 UTC35m
2026-07-22 TKJ1JS SAW → ADB Jul 22, 02:25 UTCJul 22, 03:00 UTC35m
2026-07-21 TKJ8DC ADB → SAW Jul 21, 21:50 UTCJul 21, 22:30 UTC40m
2026-07-21 TKJ3EL - Jul 21, 19:55 UTCJul 21, 20:35 UTC40m
2026-07-21 TKJ2RY - Jul 21, 16:20 UTCJul 21, 18:05 UTC1h 45m
2026-07-21 TKJ8XR ESB → STR Jul 21, 13:00 UTCJul 21, 15:00 UTC2h 0m
2026-07-21 TKJ7AD TZX → SAW Jul 21, 09:50 UTCJul 21, 11:15 UTC1h 25m
2026-07-21 TKJ9QF SAW → TZX Jul 21, 08:25 UTCJul 21, 08:35 UTC10m
2026-07-21 TKJ9QF SAW → TZX Jul 21, 07:25 UTCJul 21, 07:50 UTC25m
2026-07-20 TKJ9FH ASR → SAW Jul 20, 14:10 UTCJul 20, 17:05 UTC2h 55m
2026-07-19 TKJ1ML - Jul 19, 21:55 UTCJul 20, 07:00 UTC9h 5m
2026-07-19 TKJ9CL SAW → STR Jul 19, 17:35 UTCJul 19, 18:00 UTC25m
2026-07-19 TKJ45W BEG → ESB Jul 19, 15:35 UTCJul 19, 15:50 UTC15m
2026-07-19 TKJ5KZ - Jul 19, 11:30 UTCJul 19, 14:10 UTC2h 40m
2026-07-19 TKJ3WS - Jul 19, 06:40 UTCJul 19, 09:30 UTC2h 50m
2026-07-18 TKJ3301 - Jul 18, 19:35 UTCJul 18, 20:10 UTC35m
2026-07-18 TKJ3300 - Jul 18, 17:15 UTCJul 18, 18:30 UTC1h 15m
2026-07-18 TKJ2PC - Jul 18, 14:05 UTCJul 18, 15:15 UTC1h 10m
2026-07-18 TKJ4FC - Jul 18, 11:35 UTCJul 18, 12:40 UTC1h 5m
2026-07-18 TKJ48M - Jul 18, 07:10 UTCJul 18, 08:15 UTC1h 5m
2026-07-18 TKJ9CQ TZX → SAW Jul 18, 04:30 UTCJul 18, 05:35 UTC1h 5m
2026-07-17 TKJ8RG - Jul 17, 18:00 UTCJul 18, 02:35 UTC8h 35m
2026-07-17 TKJ60J - Jul 17, 12:04 UTCJul 17, 14:35 UTC2h 30m
2026-07-17 TKJ3TH - Jul 17, 07:35 UTCJul 17, 10:20 UTC2h 45m
2026-07-17 TKJ348 - Jul 17, 01:55 UTCJul 17, 03:34 UTC1h 40m
2026-07-16 TKJ347 - Jul 16, 20:49 UTCJul 16, 22:25 UTC1h 35m
2026-07-16 TKJ7CJ - Jul 16, 13:54 UTCJul 16, 17:40 UTC3h 45m
2026-07-16 TKJ40R - Jul 16, 10:00 UTCJul 16, 12:25 UTC2h 25m
2026-07-16 TKJ8QP - Jul 16, 05:35 UTCJul 16, 08:40 UTC3h 5m
2026-07-15 TKJ3NA - Jul 15, 19:40 UTCJul 15, 20:35 UTC55m
2026-07-15 TKJ9RG - Jul 15, 17:20 UTCJul 15, 18:05 UTC45m
2026-07-15 TKJ1PR - Jul 15, 12:05 UTCJul 15, 15:00 UTC2h 55m
2026-07-15 TKJ8AT - Jul 15, 09:35 UTCJul 15, 10:00 UTC25m
2026-07-15 TKJ8AT - Jul 15, 06:45 UTCJul 15, 09:00 UTC2h 15m
2026-07-14 TKJ8RG - Jul 14, 18:15 UTCJul 15, 04:15 UTC9h 59m
2026-07-14 TKJ318 - Jul 14, 15:15 UTCJul 14, 16:45 UTC1h 30m
2026-07-14 TKJ317 - Jul 14, 12:20 UTCJul 14, 13:55 UTC1h 35m
2026-07-14 TKJ4SX - Jul 14, 06:30 UTCJul 14, 07:15 UTC45m
2026-07-14 TKJ1UF - Jul 14, 04:40 UTCJul 14, 05:30 UTC50m
2026-07-13 TKJ2HX - Jul 13, 17:55 UTCJul 14, 03:20 UTC9h 25m
2026-07-13 TKJ318 - Jul 13, 14:00 UTCJul 13, 15:35 UTC1h 35m
2026-07-13 TKJ317 - Jul 13, 11:25 UTCJul 13, 12:50 UTC1h 25m

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

Mode-S 4BA904 frequently asked

What is Mode-S code 4BA904?
4BA904 is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-JHD.
Where is Mode-S 4BA904 registered?
Mode-S code 4BA904 is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BA904 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BA904, octal 22724404, decimal 4,958,468.
What flights does 4BA904 operate?
Mode-S 4BA904 has broadcast 20 distinct callsigns, including TKJ1ML, TKJ2HX, TKJ3SY, TKJ8RG, TKJ318.