Apparatus

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sensors Mode-S transponder

4BCDE9

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-SOI · BOEING 737 MAX 8

Hex
4BCDE9
Octal
22746751
Decimal
4,967,913
Country
TR
Tail
TC-SOI
Type
B38M
Broadcasting now · callsign SXS4PL · 36,000 ft
Flights observed
212
Distinct callsigns
20
Country
TR
Last broadcast
32m ago

Current position

4BCDE9 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4BCDE9 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
SXS6VE SunExpress 5 2026-05-10
SXS2UM SunExpress 5 2026-05-10
SXS8KM SunExpress 4 2026-05-10
SXS7XH SunExpress 4 2026-05-07
SXS7BN SunExpress 4 2026-04-17
SXS6HK SunExpress 4 2026-05-10
SXS5LU - 4 2026-04-17
SXS4TD - 4 2026-05-05
SXS4KP SunExpress 4 2026-05-14
SXS4AX - 4 2026-04-14
SXS2TK SunExpress 4 2026-05-07
SXS9DA SunExpress 3 2026-05-13
SXS8ZW SunExpress 3 2026-04-20
SXS73E SunExpress 3 2026-05-11
SXS5WQ - 3 2026-05-13
SXS5SV SunExpress 3 2026-05-08
SXS5DL SunExpress 3 2026-05-28
SXS4YR SunExpress 3 2026-05-11
SXS2Y SunExpress 3 2026-05-12
SXS2XZ SunExpress 3 2026-05-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 SXS4PL NUE → AYT May 30, 03:45 UTCMay 30, 04:15 UTC30m
2026-05-29 SXS4LY BHX → DLM May 29, 12:55 UTCMay 29, 16:30 UTC3h 35m
2026-05-29 SXS9EN MLX → DUS May 29, 07:30 UTCMay 29, 11:40 UTC4h 10m
2026-05-29 SXS1BQ MAN → DLM May 29, 00:05 UTCMay 29, 03:45 UTC3h 40m
2026-05-28 SXS5DL DLM → MAN May 28, 18:25 UTCMay 28, 22:40 UTC4h 15m
2026-05-28 SXS6DN BHX → DLM May 28, 12:35 UTCMay 28, 16:15 UTC3h 40m
2026-05-28 SXS6MX DLM → BHX May 28, 07:05 UTCMay 28, 11:10 UTC4h 5m
2026-05-28 SXS1BQ MAN → DLM May 28, 00:25 UTCMay 28, 04:15 UTC3h 50m
2026-05-27 SXS5DL DLM → MAN May 27, 18:35 UTCMay 27, 22:40 UTC4h 5m
2026-05-27 SXS4XY NCL → DLM May 27, 12:45 UTCMay 27, 16:45 UTC4h 0m
2026-05-27 SXS3EW DLM → NCL May 27, 07:05 UTCMay 27, 11:20 UTC4h 15m
2026-05-27 SXS1BQ MAN → DLM May 27, 00:10 UTCMay 27, 03:59 UTC3h 50m
2026-05-26 SXS5DL DLM → MAN May 26, 18:24 UTCMay 26, 22:29 UTC4h 5m
2026-05-26 SXS7GA DUS → DLM May 26, 07:49 UTCMay 26, 10:54 UTC3h 5m
2026-05-26 SXS51C ZRH → AYT May 26, 02:49 UTCMay 26, 06:14 UTC3h 25m
2026-05-25 SXS75H STN → AYT May 25, 19:15 UTCMay 25, 23:00 UTC3h 45m
2026-05-25 SXS7FZ AYT → STN May 25, 13:45 UTCMay 25, 17:40 UTC3h 55m
2026-05-25 SXS78U DUS → EDO May 25, 09:15 UTCMay 25, 12:05 UTC2h 50m
2026-05-25 SXS77Z AYT → FMM May 25, 04:55 UTCMay 25, 07:45 UTC2h 50m
2026-05-24 SXS2GA CGN → AYT May 24, 23:00 UTCMay 24, 23:46 UTC46m
2026-05-24 SXS1XU AYT → CGN May 24, 18:05 UTCMay 24, 21:25 UTC3h 20m
2026-05-24 SXS2DU BRU → AYT May 24, 13:00 UTCMay 24, 16:10 UTC3h 10m
2026-05-24 SXS6093 STR → FCO May 24, 10:15 UTCMay 24, 11:15 UTC1h 0m
2026-05-24 SXS092 - May 24, 05:25 UTCMay 24, 08:25 UTC3h 0m
2026-05-23 SXS14E FMO → AYT May 23, 22:30 UTCMay 24, 01:45 UTC3h 15m
2026-05-23 SXS6PZ AYT → FMO May 23, 17:45 UTCMay 23, 21:05 UTC3h 21m
2026-05-23 SXS1JM LGW → AYT May 23, 11:55 UTCMay 23, 15:40 UTC3h 45m
2026-05-23 SXS2VN AYT → LGW May 23, 06:35 UTCMay 23, 10:35 UTC4h 0m
2026-05-23 SXS6CH HAJ → AYT May 23, 02:00 UTCMay 23, 05:00 UTC3h 0m
2026-05-22 SXS4BD AYT → NUE May 22, 21:30 UTCMay 23, 00:30 UTC3h 0m
2026-05-22 SXS7UZ MUC → AYT May 22, 17:15 UTCMay 22, 20:05 UTC2h 50m
2026-05-22 SXS5TA AYT → MUC May 22, 13:05 UTCMay 22, 16:00 UTC2h 55m
2026-05-22 SXS2HQ STR → ASR May 22, 07:40 UTCMay 22, 10:55 UTC3h 15m
2026-05-22 SXS51C ZRH → AYT May 22, 02:45 UTCMay 22, 06:15 UTC3h 30m
2026-05-21 SXS1VZ BER → AYT May 21, 17:55 UTCMay 21, 20:50 UTC2h 55m
2026-05-21 SXS6092 STR → BER May 21, 15:45 UTCMay 21, 16:45 UTC1h 0m
2026-05-21 SXS092 - May 21, 10:30 UTCMay 21, 13:40 UTC3h 10m
2026-05-21 SXS9UK PRG → AYT May 21, 06:25 UTCMay 21, 09:10 UTC2h 45m
2026-05-21 SXS8SR AYT → PRG May 21, 02:20 UTCMay 21, 05:05 UTC2h 45m
2026-05-20 SXS2BB FRA → AYT May 20, 18:15 UTCMay 20, 21:10 UTC2h 55m
2026-05-20 SXS21R ADB → MAN May 20, 13:10 UTCMay 20, 16:30 UTC3h 20m
2026-05-20 SXS38V EIN → AYT May 20, 08:25 UTCMay 20, 11:30 UTC3h 5m
2026-05-20 SXS7BP AYT → EIN May 20, 03:30 UTCMay 20, 06:55 UTC3h 26m
2026-05-19 SXS69W BRU → AYT May 19, 16:25 UTCMay 19, 19:45 UTC3h 20m
2026-05-19 SXS8GR AYT → BRU May 19, 11:15 UTCMay 19, 14:55 UTC3h 40m
2026-05-19 SXS2 FRA → AYT May 19, 06:30 UTCMay 19, 09:20 UTC2h 50m
2026-05-18 SXS3TR AYT → BER May 18, 19:15 UTCMay 19, 04:20 UTC9h 5m
2026-05-18 SXS1 AYT → FRA May 18, 14:00 UTCMay 18, 17:15 UTC3h 15m
2026-05-18 SXS5BV ADB → AYT May 18, 09:10 UTCMay 18, 12:45 UTC3h 35m
2026-05-18 SXS4QE AYT → BRE May 18, 04:30 UTCMay 18, 07:55 UTC3h 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-SOI page for operator, model, and routing details .

Mode-S 4BCDE9 frequently asked

What is Mode-S code 4BCDE9?
4BCDE9 is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-SOI.
Where is Mode-S 4BCDE9 registered?
Mode-S code 4BCDE9 is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BCDE9 broadcasting right now?
Yes. Mode-S 4BCDE9 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BCDE9, octal 22746751, decimal 4,967,913.
What flights does 4BCDE9 operate?
Mode-S 4BCDE9 has broadcast 20 distinct callsigns, including SXS6VE, SXS2UM, SXS8KM, SXS7XH, SXS7BN.