Apparatus

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sensors Mode-S transponder

4BCDB4

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-SMT · BOEING 737 MAX 8

Hex
4BCDB4
Octal
22746664
Decimal
4,967,860
Country
TR
Tail
TC-SMT
Type
B38M
Broadcasting now · callsign SXS6MX · 36,000 ft
Flights observed
477
Distinct callsigns
20
Country
TR
Last broadcast
Jul 26, 23:00 UTC

Current position

4BCDB4 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4BCDB4 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
SXS6NH - 9 2026-07-22
SXS5AR SunExpress 9 2026-07-22
SXS7XH SunExpress 8 2026-04-22
SXS5BV - 8 2026-07-19
SXS4QE SunExpress 8 2026-07-19
SXS2TK SunExpress 8 2026-04-22
SXS1 - 7 2026-07-19
SXS2 SunExpress 6 2026-07-20
SXS9UL - 5 2026-07-12
SXS9MR - 5 2026-07-05
SXS58U - 5 2026-07-12
SXS2FZ - 5 2026-07-05
SXS7XF SunExpress 4 2026-05-31
SXS7UZ - 4 2026-06-23
SXS7DQ SunExpress 4 2026-04-22
SXS7BN SunExpress 4 2026-04-24
SXS6TK SunExpress 4 2026-05-31
SXS5TA SunExpress 4 2026-06-23
SXS3TR - 4 2026-07-06
SXS2RJ - 4 2026-06-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SXS6XD CGN → AYT Jul 26, 22:30 UTCJul 26, 23:00 UTC30m
2026-07-26 SXS4RX AYT → CGN Jul 26, 16:50 UTCJul 26, 20:30 UTC3h 40m
2026-07-26 SXS9BH MAN → AYT Jul 26, 11:30 UTCJul 26, 15:10 UTC3h 40m
2026-07-26 SXS9TC AYT → MAN Jul 26, 05:10 UTCJul 26, 09:45 UTC4h 36m
2026-07-25 SXS69W BRU → AYT Jul 25, 16:15 UTCJul 25, 19:45 UTC3h 30m
2026-07-25 SXS8GR AYT → BRU Jul 25, 11:10 UTCJul 25, 14:55 UTC3h 45m
2026-07-25 SXS3FR BER → AYT Jul 25, 06:10 UTCJul 25, 08:55 UTC2h 45m
2026-07-24 SXS8NX BER → BER Jul 24, 20:35 UTCJul 25, 04:40 UTC8h 5m
2026-07-24 SXS2KY - Jul 24, 15:35 UTCJul 24, 18:40 UTC3h 5m
2026-07-24 SXS7UJ CGN → AYT Jul 24, 10:40 UTCJul 24, 13:50 UTC3h 10m
2026-07-24 SXS8UH AYT → ADB Jul 24, 05:40 UTCJul 24, 09:05 UTC3h 25m
2026-07-24 SXS6CH HAJ → AYT Jul 24, 01:10 UTCJul 24, 03:50 UTC2h 40m
2026-07-23 SXS4BD AYT → NUE Jul 23, 20:50 UTCJul 23, 23:55 UTC3h 5m
2026-07-23 SXS8CZ - Jul 23, 17:25 UTCJul 23, 19:35 UTC2h 10m
2026-07-23 SXS8WJ AYT → VIE Jul 23, 13:25 UTCJul 23, 16:00 UTC2h 35m
2026-07-23 SXS7CG MUC → AYT Jul 23, 08:40 UTCJul 23, 11:15 UTC2h 35m
2026-07-23 SXS8CB PAD → AYT Jul 23, 04:20 UTCJul 23, 07:20 UTC3h 0m
2026-07-22 SXS11A HAJ → AYT Jul 22, 23:35 UTCJul 23, 02:35 UTC3h 0m
2026-07-22 SXS5EY - Jul 22, 18:25 UTCJul 22, 21:50 UTC3h 25m
2026-07-22 SXS6NH - Jul 22, 13:05 UTCJul 22, 16:50 UTC3h 45m
2026-07-22 SXS5AR ASR → FRA Jul 22, 11:10 UTCJul 22, 11:35 UTC25m
2026-07-22 SXS5TM FMO → AYT Jul 22, 01:50 UTCJul 22, 05:20 UTC3h 30m
2026-07-21 SXS37U - Jul 21, 20:50 UTCJul 22, 00:20 UTC3h 30m
2026-07-21 SXS1323 AMS → ASR Jul 21, 13:40 UTCJul 21, 19:25 UTC5h 45m
2026-07-21 SXS1322 ASR → AMS Jul 21, 05:35 UTCJul 21, 11:50 UTC6h 15m
2026-07-21 SXS9WA PAD → AYT Jul 21, 00:10 UTCJul 21, 03:15 UTC3h 5m
2026-07-20 SXS4WM AYT → PAD Jul 20, 19:30 UTCJul 20, 22:55 UTC3h 25m
2026-07-20 SXS7JZ MUC → AYT Jul 20, 15:05 UTCJul 20, 17:45 UTC2h 40m
2026-07-20 SXS37Q - Jul 20, 10:50 UTCJul 20, 13:45 UTC2h 55m
2026-07-20 SXS2 FRA → AYT Jul 20, 06:35 UTCJul 20, 09:25 UTC2h 50m
2026-07-19 SXS7XG FRA → SZF Jul 19, 19:40 UTCJul 20, 04:25 UTC8h 45m
2026-07-19 SXS1 - Jul 19, 14:10 UTCJul 19, 17:45 UTC3h 35m
2026-07-19 SXS5BV BRE → AYT Jul 19, 09:25 UTCJul 19, 12:45 UTC3h 20m
2026-07-19 SXS4QE AYT → BRE Jul 19, 04:45 UTCJul 19, 08:15 UTC3h 30m
2026-07-18 SXS2LL STR → AYT Jul 18, 19:10 UTCJul 18, 21:50 UTC2h 40m
2026-07-18 SXS5NG AYT → STR Jul 18, 14:20 UTCJul 18, 17:35 UTC3h 15m
2026-07-18 SXS5BV - Jul 18, 09:30 UTCJul 18, 12:40 UTC3h 10m
2026-07-18 SXS4QE AYT → BRE Jul 18, 05:00 UTCJul 18, 08:25 UTC3h 25m
2026-07-18 SXS79Y AYT → PAD Jul 18, 00:29 UTCJul 18, 03:20 UTC2h 51m
2026-07-17 SXS1FG AYT → ERF Jul 17, 22:49 UTCJul 17, 23:10 UTC20m
2026-07-17 SXS1FG AYT → ERF Jul 17, 20:04 UTCJul 17, 22:45 UTC2h 40m
2026-07-17 SXS16E - Jul 17, 15:44 UTCJul 17, 18:40 UTC2h 55m
2026-07-17 SXS8TG - Jul 17, 11:25 UTCJul 17, 14:30 UTC3h 5m
2026-07-17 SXS3EL - Jul 17, 05:55 UTCJul 17, 10:10 UTC4h 15m
2026-07-16 SXS4EA NCL → AYT Jul 16, 19:10 UTCJul 16, 23:05 UTC3h 55m
2026-07-16 SXS5CX - Jul 16, 12:40 UTCJul 16, 17:10 UTC4h 30m
2026-07-16 SXS5JR - Jul 16, 08:20 UTCJul 16, 09:55 UTC1h 35m
2026-07-16 SXS7CC - Jul 16, 05:05 UTCJul 16, 07:00 UTC1h 55m
2026-07-16 SXS8VF - Jul 16, 01:20 UTCJul 16, 02:45 UTC1h 25m
2026-07-15 SXS5CJ - Jul 15, 22:30 UTCJul 16, 00:00 UTC1h 30m

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

Mode-S 4BCDB4 frequently asked

What is Mode-S code 4BCDB4?
4BCDB4 is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-SMT.
Where is Mode-S 4BCDB4 registered?
Mode-S code 4BCDB4 is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BCDB4 broadcasting right now?
Yes. Mode-S 4BCDB4 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BCDB4, octal 22746664, decimal 4,967,860.
What flights does 4BCDB4 operate?
Mode-S 4BCDB4 has broadcast 20 distinct callsigns, including SXS6NH, SXS5AR, SXS7XH, SXS5BV, SXS4QE.