Apparatus

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sensors Mode-S transponder

4BCDF9

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-SOY · BOEING 737-800

Hex
4BCDF9
Octal
22746771
Decimal
4,967,929
Country
TR
Tail
TC-SOY
Type
B738
No current signal · last broadcast 32m ago
Flights observed
137
Distinct callsigns
20
Country
TR
Last broadcast
32m ago

Last known position

Most recent position reported by Mode-S 4BCDF9.

Country allocation

The ICAO 24-bit address 4BCDF9 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
SXS8ZN SunExpress 4 2026-05-03
SXS9WA SunExpress 3 2026-05-01
SXS5YP SunExpress 3 2026-05-24
SXS4WM - 3 2026-05-01
SXS4UA SunExpress 3 2026-05-25
SXS3PU SunExpress 3 2026-05-08
SXS2UK SunExpress 3 2026-04-13
SXS9ZB SunExpress 2 2026-05-14
SXS8TG SunExpress 2 2026-05-18
SXS8RG SunExpress 2 2026-05-13
SXS6HY SunExpress 2 2026-05-27
SXS62Q SunExpress 2 2026-05-02
SXS5KE SunExpress 2 2026-05-01
SXS4HK SunExpress 2 2026-05-08
SXS48T - 2 2026-05-25
SXS3TX SunExpress 2 2026-05-01
SXS3SB SunExpress 2 2026-05-25
SXS3KQ - 2 2026-04-13
SXS3KG SunExpress 2 2026-05-20
SXS2VN SunExpress 2 2026-05-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 SXS3DQ - May 30, 02:00 UTCMay 30, 04:15 UTC2h 15m
2026-05-29 SXS4ZZ LBA → AYT May 29, 16:30 UTCMay 29, 20:20 UTC3h 50m
2026-05-29 SXS3UC AYT → LBA May 29, 10:30 UTCMay 29, 15:05 UTC4h 35m
2026-05-29 SXS3UU ECN → AYT May 29, 07:55 UTCMay 29, 08:25 UTC30m
2026-05-29 SXS3KB BRU → ESB May 29, 05:50 UTCMay 29, 06:25 UTC35m
2026-05-28 SXS2SL ASR → AYT May 28, 19:20 UTCMay 28, 19:40 UTC20m
2026-05-28 SXS4AP AYT → ASR May 28, 17:00 UTCMay 28, 17:15 UTC15m
2026-05-28 SXS8HN HAM → AYT May 28, 09:20 UTCMay 28, 12:40 UTC3h 20m
2026-05-28 SXS9LQ AYT → HAM May 28, 04:35 UTCMay 28, 08:05 UTC3h 30m
2026-05-27 SXS5MQ MAN → AYT May 27, 16:10 UTCMay 27, 20:05 UTC3h 55m
2026-05-27 SXS8KP DIY → HAJ May 27, 09:45 UTCMay 27, 14:15 UTC4h 30m
2026-05-27 SXS6HY DIY → AYT May 27, 04:19 UTCMay 27, 07:55 UTC3h 35m
2026-05-26 SXS1JM LGW → AYT May 26, 11:54 UTCMay 26, 15:45 UTC3h 50m
2026-05-26 SXS2VN AYT → LGW May 26, 06:25 UTCMay 26, 10:29 UTC4h 5m
2026-05-25 SXS3SB ZRH → AYT May 25, 18:45 UTCMay 25, 21:49 UTC3h 4m
2026-05-25 SXS48T - May 25, 14:30 UTCMay 25, 17:30 UTC3h 0m
2026-05-25 SXS4UA STN → AYT May 25, 09:05 UTCMay 25, 13:00 UTC3h 55m
2026-05-25 SXS2JG ADB → EDI May 25, 03:50 UTCMay 25, 07:10 UTC3h 20m
2026-05-24 SXS5XQ STN → ADB May 24, 18:35 UTCMay 24, 21:45 UTC3h 10m
2026-05-24 SXS5YP AYT → FRA May 24, 13:05 UTCMay 24, 17:10 UTC4h 5m
2026-05-24 SXS5ZP ZRH → AYT May 24, 07:55 UTCMay 24, 10:50 UTC2h 55m
2026-05-24 SXS2MD AYT → ZRH May 24, 03:25 UTCMay 24, 06:30 UTC3h 5m
2026-05-23 SXS75H STN → AYT May 23, 20:10 UTCMay 23, 23:55 UTC3h 45m
2026-05-23 SXS7FZ AYT → STN May 23, 14:05 UTCMay 23, 18:10 UTC4h 5m
2026-05-23 SXS7CG MUC → AYT May 23, 08:50 UTCMay 23, 11:40 UTC2h 50m
2026-05-23 SXS8CB PAD → AYT May 23, 03:55 UTCMay 23, 06:45 UTC2h 50m
2026-05-20 SXS4QN BHX → AYT May 20, 16:40 UTCMay 20, 20:30 UTC3h 50m
2026-05-20 SXS3YT HAM → AYT May 20, 10:35 UTCMay 20, 14:50 UTC4h 15m
2026-05-20 SXS3KG ASR → AYT May 20, 07:45 UTCMay 20, 08:00 UTC15m
2026-05-20 SXS5DK AYT → ASR May 20, 05:15 UTCMay 20, 05:35 UTC20m
2026-05-20 SXS6XR FMO → AYT May 20, 00:05 UTCMay 20, 03:20 UTC3h 15m
2026-05-19 SXS6BM AYT → FMO May 19, 19:15 UTCMay 19, 22:35 UTC3h 20m
2026-05-19 SXS1JM LGW → AYT May 19, 11:50 UTCMay 19, 15:20 UTC3h 30m
2026-05-19 SXS2VN AYT → LGW May 19, 06:15 UTCMay 19, 10:20 UTC4h 5m
2026-05-18 SXS16E BER → AYT May 18, 15:50 UTCMay 18, 18:50 UTC2h 59m
2026-05-18 SXS8TG AYT → BER May 18, 11:15 UTCMay 18, 14:15 UTC3h 0m
2026-05-18 SXS46A STR → AYT May 18, 06:01 UTCMay 18, 08:55 UTC2h 55m
2026-05-16 SXS6LV - May 16, 21:10 UTCMay 16, 23:30 UTC2h 20m
2026-05-16 SXS4UE AYT → SCN May 16, 10:40 UTCMay 16, 19:25 UTC8h 45m
2026-05-15 SXS8ME - May 15, 20:20 UTCMay 15, 22:20 UTC2h 0m
2026-05-15 SXS1323 AMS → ASR May 15, 10:05 UTCMay 15, 18:20 UTC8h 14m
2026-05-14 SXS7UD STR → ASR May 14, 20:30 UTCMay 15, 08:10 UTC11h 40m
2026-05-14 SXS6RK AYT → STR May 14, 15:35 UTCMay 14, 18:50 UTC3h 15m
2026-05-14 SXS8SA - May 14, 06:40 UTCMay 14, 07:20 UTC40m
2026-05-14 SXS9ZB LTN → ADB May 14, 05:00 UTCMay 14, 05:20 UTC20m
2026-05-13 SXS2FZ AOE → BRU May 13, 23:35 UTCMay 14, 03:15 UTC3h 40m
2026-05-13 SXS9MR AYT → ARN May 13, 18:30 UTCMay 13, 22:10 UTC3h 40m
2026-05-13 SXS1CM BER → AYT May 13, 10:35 UTCMay 13, 13:15 UTC2h 40m
2026-05-13 SXS8RG AYT → BER May 13, 06:10 UTCMay 13, 09:15 UTC3h 5m
2026-05-13 SXS7KN FMO → AYT May 13, 00:45 UTCMay 13, 03:40 UTC2h 55m

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

Mode-S 4BCDF9 frequently asked

What is Mode-S code 4BCDF9?
4BCDF9 is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-SOY.
Where is Mode-S 4BCDF9 registered?
Mode-S code 4BCDF9 is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BCDF9 broadcasting right now?
No active broadcast right now. Last signal was 32m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BCDF9, octal 22746771, decimal 4,967,929.
What flights does 4BCDF9 operate?
Mode-S 4BCDF9 has broadcast 20 distinct callsigns, including SXS8ZN, SXS9WA, SXS5YP, SXS4WM, SXS4UA.