Apparatus

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sensors Mode-S transponder

4BD8C3

ICAO 24-bit transponder address · allocated to Turkey

Hex
4BD8C3
Octal
22754303
Decimal
4,970,691
Country
TR
No current signal · last broadcast 23d ago
Flights observed
220
Distinct callsigns
20
Country
TR
Last broadcast
23d ago

Last known position

Most recent position reported by Mode-S 4BD8C3.

Country allocation

The ICAO 24-bit address 4BD8C3 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
TKJ9QF - 4 2026-06-19
TKJ68A - 4 2026-06-15
TKJ7BU - 3 2026-07-16
TKJ6ET - 3 2026-07-21
TKJ5JC - 3 2026-07-12
TKJ49X - 3 2026-07-16
TKJ1HG Tarkim Havacilik 3 2026-07-22
BOE123 - 3 2026-04-24
TKJ9ZE Tarkim Havacilik 2 2026-07-23
TKJ9CQ Tarkim Havacilik 2 2026-07-26
TKJ94F Tarkim Havacilik 2 2026-06-09
TKJ8GV Tarkim Havacilik 2 2026-06-16
TKJ7YN - 2 2026-06-12
TKJ7YA Tarkim Havacilik 2 2026-07-21
TKJ7WE - 2 2026-07-19
TKJ7UN Tarkim Havacilik 2 2026-07-23
TKJ7LT - 2 2026-07-12
TKJ7HY - 2 2026-07-16
TKJ7AJ - 2 2026-06-20
TKJ7AD - 2 2026-06-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 TKJ5258 SAW → MLX Jul 26, 19:40 UTCJul 26, 20:00 UTC20m
2026-07-26 TKJ5237 MQM → ESB Jul 26, 17:20 UTCJul 26, 18:25 UTC1h 5m
2026-07-26 TKJ5236 ESB → MQM Jul 26, 15:20 UTCJul 26, 16:10 UTC50m
2026-07-26 TKJ5322 SAW → GNY Jul 26, 12:30 UTCJul 26, 13:35 UTC1h 5m
2026-07-26 TKJ5321 KSY → ESB Jul 26, 10:35 UTCJul 26, 11:15 UTC40m
2026-07-26 TKJ48M - Jul 26, 07:05 UTCJul 26, 08:15 UTC1h 10m
2026-07-26 TKJ9CQ TZX → SAW Jul 26, 04:30 UTCJul 26, 05:40 UTC1h 10m
2026-07-25 TKJ1BP - Jul 25, 15:10 UTCJul 25, 17:40 UTC2h 30m
2026-07-25 TKJ4LQ SAW → STR Jul 25, 10:40 UTCJul 25, 13:20 UTC2h 40m
2026-07-25 TKJ48M - Jul 25, 07:10 UTCJul 25, 08:30 UTC1h 20m
2026-07-25 TKJ9CQ TZX → SAW Jul 25, 04:35 UTCJul 25, 05:45 UTC1h 10m
2026-07-24 TKJ8DC ADB → SAW Jul 24, 22:00 UTCJul 24, 22:35 UTC35m
2026-07-24 TKJ3472 SAW → ADB Jul 24, 20:05 UTCJul 24, 20:40 UTC35m
2026-07-24 TKJ5257 ESB → SAW Jul 24, 17:30 UTCJul 24, 18:25 UTC55m
2026-07-24 TKJ5256 SAW → ESB Jul 24, 15:30 UTCJul 24, 16:10 UTC40m
2026-07-24 TKJ40R ESB → EZS Jul 24, 10:35 UTCJul 24, 12:45 UTC2h 10m
2026-07-24 TKJ8QP - Jul 24, 06:20 UTCJul 24, 09:00 UTC2h 40m
2026-07-23 TKJ9ZE MUC → SAW Jul 23, 11:40 UTCJul 23, 13:35 UTC1h 55m
2026-07-23 TKJ7UN SAW → MUC Jul 23, 07:25 UTCJul 23, 09:50 UTC2h 25m
2026-07-22 TKJ24R - Jul 22, 17:20 UTCJul 22, 18:05 UTC45m
2026-07-22 TKJ1HG SAW → FRA Jul 22, 12:00 UTCJul 22, 14:50 UTC2h 50m
2026-07-22 TKJ2KB - Jul 22, 01:45 UTCJul 22, 02:20 UTC35m
2026-07-21 TKJ1QR SAW → GZT Jul 21, 21:55 UTCJul 21, 22:10 UTC15m
2026-07-21 TKJ6BL MLX → ESB Jul 21, 15:15 UTCJul 21, 15:25 UTC10m
2026-07-21 TKJ6MP SAW → SJJ Jul 21, 11:05 UTCJul 21, 12:40 UTC1h 35m
2026-07-21 TKJ6ET - Jul 21, 06:00 UTCJul 21, 07:20 UTC1h 20m
2026-07-21 TKJ7YA SAW → ERZ Jul 21, 03:20 UTCJul 21, 03:45 UTC25m
2026-07-20 TKJ6BL MLX → ESB Jul 20, 14:15 UTCJul 20, 15:35 UTC1h 20m
2026-07-20 TKJ6MP - Jul 20, 11:00 UTCJul 20, 12:35 UTC1h 35m
2026-07-20 TKJ6ET - Jul 20, 03:25 UTCJul 20, 08:05 UTC4h 40m
2026-07-19 TKJ36U EBL → SAW Jul 19, 13:30 UTCJul 19, 16:30 UTC3h 0m
2026-07-19 TKJ1YG - Jul 19, 07:10 UTCJul 19, 10:25 UTC3h 15m
2026-07-19 TKJ7WE - Jul 19, 04:45 UTCJul 19, 05:30 UTC45m
2026-07-18 TKJ7CJ - Jul 18, 13:50 UTCJul 18, 17:45 UTC3h 55m
2026-07-17 TKJ9EF - Jul 17, 19:05 UTCJul 17, 21:39 UTC2h 35m
2026-07-17 TKJ8FD SAW → SJJ Jul 17, 14:55 UTCJul 17, 17:05 UTC2h 10m
2026-07-17 TKJ5037 CGN → SAW Jul 17, 08:49 UTCJul 17, 11:25 UTC2h 35m
2026-07-17 TKJ5036 SAW → CGN Jul 17, 04:14 UTCJul 17, 07:14 UTC3h 0m
2026-07-16 TKJ49X - Jul 16, 19:25 UTCJul 16, 19:45 UTC20m
2026-07-16 TKJ7BU - Jul 16, 16:25 UTCJul 16, 17:20 UTC55m
2026-07-16 TKJ1HG - Jul 16, 11:50 UTCJul 16, 14:15 UTC2h 25m
2026-07-16 TKJ7HY - Jul 16, 07:55 UTCJul 16, 10:40 UTC2h 45m
2026-07-16 TKJ280 - Jul 16, 03:30 UTCJul 16, 03:55 UTC25m
2026-07-15 TKJ280 - Jul 15, 17:45 UTCJul 16, 02:55 UTC9h 10m
2026-07-15 TKJ279 - Jul 15, 16:30 UTCJul 15, 16:50 UTC20m
2026-07-15 TKJ36U - Jul 15, 11:45 UTCJul 15, 14:35 UTC2h 50m
2026-07-15 TKJ1YG - Jul 15, 07:15 UTCJul 15, 10:25 UTC3h 10m
2026-07-15 TKJ7QM - Jul 15, 04:20 UTCJul 15, 05:00 UTC40m
2026-07-15 TKJ1JS - Jul 15, 02:30 UTCJul 15, 03:05 UTC35m
2026-07-14 TKJ24R - Jul 14, 17:25 UTCJul 14, 18:10 UTC45m

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.

Mode-S 4BD8C3 frequently asked

What is Mode-S code 4BD8C3?
4BD8C3 is an ICAO 24-bit transponder address. Allocated to Turkey.
Where is Mode-S 4BD8C3 registered?
Mode-S code 4BD8C3 is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BD8C3 broadcasting right now?
No active broadcast right now. Last signal was 23d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BD8C3, octal 22754303, decimal 4,970,691.
What flights does 4BD8C3 operate?
Mode-S 4BD8C3 has broadcast 20 distinct callsigns, including TKJ9QF, TKJ68A, TKJ7BU, TKJ6ET, TKJ5JC.