Apparatus

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sensors Mode-S transponder

4BCDD5

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-SNU · BOEING 737-800

Hex
4BCDD5
Octal
22746725
Decimal
4,967,893
Country
TR
Tail
TC-SNU
Type
B738
No current signal · last broadcast 1h ago
Flights observed
191
Distinct callsigns
20
Country
TR
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 4BCDD5.

Country allocation

The ICAO 24-bit address 4BCDD5 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
SXS4BY SunExpress 6 2026-04-27
SXS3KQ SunExpress 6 2026-04-27
SXS8CB SunExpress 5 2026-05-15
SXS7CG SunExpress 5 2026-05-18
SXS6RQ SunExpress 5 2026-05-19
SXS82K SunExpress 4 2026-05-19
SXS7UZ SunExpress 4 2026-05-28
SXS7QF SunExpress 4 2026-05-29
SXS6SF SunExpress 4 2026-04-25
SXS5ZZ SunExpress 4 2026-05-19
SXS5TA SunExpress 4 2026-05-28
SXS3ZX - 4 2026-05-01
SXS1ZQ SunExpress 4 2026-04-25
SXS98G SunExpress 3 2026-05-16
SXS6BM SunExpress 3 2026-04-26
SXS4KQ - 3 2026-05-19
SXS3FP SunExpress 3 2026-05-01
SXS3EL SunExpress 3 2026-05-09
SXS11A SunExpress 3 2026-05-03
SXS9WA SunExpress 2 2026-05-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 SXS7JX BJV → HAJ May 29, 22:45 UTCMay 30, 01:15 UTC2h 30m
2026-05-29 SXS8BF DUS → BJV May 29, 17:50 UTCMay 29, 20:40 UTC2h 50m
2026-05-29 SXS7QF AYT → DUS May 29, 12:10 UTCMay 29, 15:50 UTC3h 40m
2026-05-29 SXS5TM FMO → AYT May 29, 01:55 UTCMay 29, 05:10 UTC3h 15m
2026-05-28 SXS37U - May 28, 21:05 UTCMay 29, 00:40 UTC3h 35m
2026-05-28 SXS7UZ MUC → AYT May 28, 17:25 UTCMay 28, 20:00 UTC2h 35m
2026-05-28 SXS5TA AYT → MUC May 28, 12:55 UTCMay 28, 16:00 UTC3h 5m
2026-05-28 SXS5JR BRE → AYT May 28, 08:40 UTCMay 28, 10:15 UTC1h 35m
2026-05-28 SXS7CC - May 28, 04:50 UTCMay 28, 06:40 UTC1h 50m
2026-05-27 SXS7UZ MUC → AYT May 27, 17:05 UTCMay 27, 19:55 UTC2h 50m
2026-05-27 SXS5TA AYT → MUC May 27, 12:55 UTCMay 27, 15:50 UTC2h 55m
2026-05-27 SXS9LY VIE → AYT May 27, 08:50 UTCMay 27, 11:25 UTC2h 35m
2026-05-27 SXS9HN AYT → VIE May 27, 04:55 UTCMay 27, 07:20 UTC2h 26m
2026-05-26 SXS4QP NUE → AYT May 26, 23:05 UTCMay 27, 01:54 UTC2h 50m
2026-05-26 SXS3ER DRS → AYT May 26, 18:50 UTCMay 26, 21:49 UTC3h 0m
2026-05-26 SXS6NH MAN → AYT May 26, 13:04 UTCMay 26, 17:05 UTC4h 0m
2026-05-26 SXS5AR ASR → FRA May 26, 07:15 UTCMay 26, 11:30 UTC4h 15m
2026-05-26 SXS6CH HAJ → AYT May 26, 01:10 UTCMay 26, 04:15 UTC3h 5m
2026-05-25 SXS4BD AYT → NUE May 25, 20:55 UTCMay 25, 23:49 UTC2h 55m
2026-05-25 SXS8CZ VIE → AYT May 25, 17:05 UTCMay 25, 19:30 UTC2h 24m
2026-05-25 SXS8WJ AYT → VIE May 25, 13:25 UTCMay 25, 15:50 UTC2h 25m
2026-05-24 SXS6XD CGN → AYT May 24, 23:00 UTCMay 24, 23:46 UTC46m
2026-05-24 SXS4RX AYT → CGN May 24, 17:10 UTCMay 24, 20:30 UTC3h 20m
2026-05-24 SXS36L VIE → AYT May 24, 13:10 UTCMay 24, 15:30 UTC2h 20m
2026-05-24 SXS41C AYT → NUE May 24, 09:25 UTCMay 24, 11:55 UTC2h 30m
2026-05-24 SXS24F AYT → DIY May 24, 04:15 UTCMay 24, 07:40 UTC3h 25m
2026-05-23 SXS1KJ AYT → BAL May 23, 15:00 UTCMay 23, 18:30 UTC3h 30m
2026-05-23 SXS3AH AYT → GZT May 23, 10:25 UTCMay 23, 10:55 UTC30m
2026-05-23 SXS3KG ASR → AYT May 23, 07:50 UTCMay 23, 08:05 UTC15m
2026-05-23 SXS5DK AYT → ASR May 23, 05:15 UTCMay 23, 05:45 UTC30m
2026-05-22 SXS7JR DUS → AYT May 22, 18:30 UTCMay 22, 21:40 UTC3h 10m
2026-05-22 SXS6MF AYT → RTM May 22, 13:30 UTCMay 22, 17:00 UTC3h 30m
2026-05-22 SXS7TL ADB → AMS May 22, 08:10 UTCMay 22, 11:15 UTC3h 5m
2026-05-22 SXS93H - May 22, 03:20 UTCMay 22, 06:45 UTC3h 25m
2026-05-21 SXS78U DUS → EDO May 21, 15:30 UTCMay 21, 18:15 UTC2h 45m
2026-05-21 SXS77Z AYT → FMM May 21, 10:50 UTCMay 21, 13:45 UTC2h 55m
2026-05-21 SXS46A STR → AYT May 21, 06:10 UTCMay 21, 09:05 UTC2h 55m
2026-05-20 SXS9NU STR → STR May 20, 20:10 UTCMay 21, 04:25 UTC8h 15m
2026-05-20 SXS6RK AYT → STR May 20, 15:40 UTCMay 20, 18:45 UTC3h 5m
2026-05-20 SXS9CB - May 20, 09:50 UTCMay 20, 11:45 UTC1h 55m
2026-05-20 SXS4JH - May 20, 06:20 UTCMay 20, 08:25 UTC2h 5m
2026-05-20 SXS75K HAJ → AYT May 20, 00:20 UTCMay 20, 03:30 UTC3h 10m
2026-05-19 SXS7EC AYT → HAJ May 19, 19:10 UTCMay 19, 22:15 UTC3h 5m
2026-05-19 SXS82K MUC → AYT May 19, 11:30 UTCMay 19, 14:05 UTC2h 35m
2026-05-19 SXS6RQ NUE → AYT May 19, 07:20 UTCMay 19, 10:10 UTC2h 50m
2026-05-19 SXS5ZZ RMO → AYT May 19, 04:15 UTCMay 19, 05:10 UTC55m
2026-05-19 SXS4KQ - May 19, 00:10 UTCMay 19, 01:35 UTC1h 25m
2026-05-18 SXS2BB FRA → AYT May 18, 18:25 UTCMay 18, 21:20 UTC2h 54m
2026-05-18 SXS21R ADB → MAN May 18, 13:15 UTCMay 18, 16:35 UTC3h 20m
2026-05-18 SXS7CG MUC → AYT May 18, 08:20 UTCMay 18, 10:55 UTC2h 35m

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

Mode-S 4BCDD5 frequently asked

What is Mode-S code 4BCDD5?
4BCDD5 is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-SNU.
Where is Mode-S 4BCDD5 registered?
Mode-S code 4BCDD5 is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BCDD5 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BCDD5, octal 22746725, decimal 4,967,893.
What flights does 4BCDD5 operate?
Mode-S 4BCDD5 has broadcast 20 distinct callsigns, including SXS4BY, SXS3KQ, SXS8CB, SXS7CG, SXS6RQ.