Apparatus

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sensors Mode-S transponder

4BD8CD

ICAO 24-bit transponder address · allocated to Turkey

Hex
4BD8CD
Octal
22754315
Decimal
4,970,701
Country
TR
No current signal · last broadcast 7d ago
Flights observed
70
Distinct callsigns
20
Country
TR
Last broadcast
7d ago

Last known position

Most recent position reported by Mode-S 4BD8CD.

Country allocation

The ICAO 24-bit address 4BD8CD 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
TKJ68A Tarkim Havacilik 5 2026-07-21
TKJ5MR - 5 2026-07-21
TKJ6MR - 3 2026-07-21
BOE897 - 3 2026-06-26
TKJ8JC Tarkim Havacilik 2 2026-07-20
TKJ7KQ - 2 2026-07-20
TKJ7AD Tarkim Havacilik 2 2026-07-26
TKJ5GR Tarkim Havacilik 2 2026-07-23
THY6838 - 2 2026-07-12
BOE123 - 2 2026-06-01
TKJ9QF Tarkim Havacilik 1 2026-07-26
TKJ9CL Tarkim Havacilik 1 2026-07-24
TKJ97F Tarkim Havacilik 1 2026-07-17
TKJ91M Tarkim Havacilik 1 2026-07-26
TKJ8UM Tarkim Havacilik 1 2026-07-24
TKJ8NZ - 1 2026-07-23
TKJ80T Tarkim Havacilik 1 2026-07-20
TKJ7WE Tarkim Havacilik 1 2026-07-25
TKJ7RA - 1 2026-07-24
TKJ7QM Tarkim Havacilik 1 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 TKJ6MH - Jul 26, 20:05 UTCJul 26, 20:15 UTC10m
2026-07-26 TKJ24R - Jul 26, 16:55 UTCJul 26, 17:35 UTC40m
2026-07-26 TKJ91M SAW → CDG Jul 26, 14:25 UTCJul 26, 15:15 UTC50m
2026-07-26 TKJ3TY MSR → ESB Jul 26, 12:30 UTCJul 26, 13:10 UTC40m
2026-07-26 TKJ7AD TZX → SAW Jul 26, 10:45 UTCJul 26, 11:05 UTC20m
2026-07-26 TKJ7AD TZX → SAW Jul 26, 09:45 UTCJul 26, 10:10 UTC25m
2026-07-26 TKJ9QF SAW → TZX Jul 26, 07:15 UTCJul 26, 08:35 UTC1h 20m
2026-07-25 TKJ7WE CDG → SAW Jul 25, 21:15 UTCJul 26, 05:10 UTC7h 55m
2026-07-25 TKJ7CJ GNY → SAW Jul 25, 13:50 UTCJul 25, 17:25 UTC3h 35m
2026-07-25 TKJ2YP DLM → SAW Jul 25, 10:55 UTCJul 25, 11:40 UTC45m
2026-07-25 TKJ6JL SAW → DLM Jul 25, 07:30 UTCJul 25, 08:05 UTC35m
2026-07-25 TKJ7QM GNY → ESB Jul 25, 04:10 UTCJul 25, 04:50 UTC40m
2026-07-25 TKJ1JS SAW → ADB Jul 25, 02:20 UTCJul 25, 03:00 UTC40m
2026-07-24 TKJ5259 ESB → SAW Jul 24, 21:40 UTCJul 24, 22:10 UTC30m
2026-07-24 TKJ5258 SAW → MLX Jul 24, 19:35 UTCJul 24, 19:55 UTC20m
2026-07-24 TKJ9CL SAW → STR Jul 24, 17:20 UTCJul 24, 18:05 UTC45m
2026-07-24 TKJ45W BEG → ESB Jul 24, 15:20 UTCJul 24, 15:40 UTC20m
2026-07-24 TKJ7RA - Jul 24, 12:45 UTCJul 24, 13:35 UTC50m
2026-07-24 TKJ8UM OGU → SAW Jul 24, 10:40 UTCJul 24, 11:20 UTC40m
2026-07-24 TKJ4EJ - Jul 24, 05:10 UTCJul 24, 09:05 UTC3h 55m
2026-07-24 TKJ7PZ TZX → SAW Jul 24, 00:45 UTCJul 24, 02:20 UTC1h 35m
2026-07-23 TKJ5GR SAW → PRN Jul 23, 21:10 UTCJul 23, 21:20 UTC10m
2026-07-23 TKJ5GR SAW → PRN Jul 23, 20:15 UTCJul 23, 20:40 UTC25m
2026-07-23 TKJ5269 AYT → SAW Jul 23, 14:45 UTCJul 23, 17:30 UTC2h 45m
2026-07-23 TKJ8NZ - Jul 23, 11:35 UTCJul 23, 12:25 UTC50m
2026-07-23 TKJ1PQ - Jul 23, 09:35 UTCJul 23, 10:20 UTC45m
2026-07-23 TKJ5HB - Jul 23, 05:45 UTCJul 23, 06:20 UTC35m
2026-07-23 TKJ50P BER → SAW Jul 23, 03:00 UTCJul 23, 03:55 UTC55m
2026-07-22 TKJ49X FRA → SAW Jul 22, 19:35 UTCJul 22, 21:10 UTC1h 35m
2026-07-22 TKJ7BU - Jul 22, 16:15 UTCJul 22, 17:20 UTC1h 5m
2026-07-22 TKJ4FT - Jul 22, 11:55 UTCJul 22, 12:25 UTC30m
2026-07-22 TKJ2DZ SAW → BEG Jul 22, 02:30 UTCJul 22, 03:40 UTC1h 10m
2026-07-21 TKJ5292 - Jul 21, 18:05 UTCJul 21, 18:35 UTC30m
2026-07-21 TKJ5291 - Jul 21, 16:10 UTCJul 21, 16:25 UTC15m
2026-07-21 TKJ5MR - Jul 21, 12:20 UTCJul 21, 13:55 UTC1h 35m
2026-07-21 TKJ68A SAW → TZX Jul 21, 10:55 UTCJul 21, 11:05 UTC10m
2026-07-21 TKJ68A SAW → TZX Jul 21, 09:55 UTCJul 21, 10:15 UTC20m
2026-07-21 TKJ6MR - Jul 21, 03:50 UTCJul 21, 08:05 UTC4h 15m
2026-07-20 TKJ7KQ - Jul 20, 17:10 UTCJul 20, 17:30 UTC20m
2026-07-20 TKJ7KQ - Jul 20, 15:55 UTCJul 20, 16:30 UTC35m
2026-07-20 TKJ8JC YEI → DIY Jul 20, 14:35 UTCJul 20, 14:50 UTC15m
2026-07-20 TKJ8JC YEI → DIY Jul 20, 13:30 UTCJul 20, 14:00 UTC30m
2026-07-20 TKJ12M - Jul 20, 11:25 UTCJul 20, 12:05 UTC40m
2026-07-20 TKJ80T ESB → VIE Jul 20, 09:35 UTCJul 20, 10:15 UTC40m
2026-07-20 TKJ6MR - Jul 20, 03:55 UTCJul 20, 08:15 UTC4h 20m
2026-07-20 TKJ3XP - Jul 20, 01:30 UTCJul 20, 02:10 UTC40m
2026-07-19 TKJ2BX - Jul 19, 22:45 UTCJul 19, 23:25 UTC40m
2026-07-19 TKJ4TK - Jul 19, 18:35 UTCJul 19, 19:25 UTC50m
2026-07-19 TKJ1GZ - Jul 19, 16:30 UTCJul 19, 17:20 UTC50m
2026-07-19 TKJ5MR - Jul 19, 14:05 UTCJul 19, 14:30 UTC25m

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 4BD8CD frequently asked

What is Mode-S code 4BD8CD?
4BD8CD is an ICAO 24-bit transponder address. Allocated to Turkey.
Where is Mode-S 4BD8CD registered?
Mode-S code 4BD8CD is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BD8CD broadcasting right now?
No active broadcast right now. Last signal was 7d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BD8CD, octal 22754315, decimal 4,970,701.
What flights does 4BD8CD operate?
Mode-S 4BD8CD has broadcast 20 distinct callsigns, including TKJ68A, TKJ5MR, TKJ6MR, BOE897, TKJ8JC.