Apparatus

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sensors Mode-S transponder

4BCE04

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-SPD · BOEING 737-800

Hex
4BCE04
Octal
22747004
Decimal
4,967,940
Country
TR
Tail
TC-SPD
Type
B738
Broadcasting now · callsign SXS2KY · 36,000 ft
Flights observed
187
Distinct callsigns
20
Country
TR
Last broadcast
2h ago

Current position

4BCE04 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4BCE04 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
SXS5YP SunExpress 5 2026-05-21
SXS9EP SunExpress 4 2026-05-18
SXS7HT SunExpress 4 2026-05-18
SXS4UA SunExpress 4 2026-05-14
SXS9ZL SunExpress 3 2026-05-05
SXS8ZN SunExpress 3 2026-05-27
SXS8SA - 3 2026-05-04
SXS8JE SunExpress 3 2026-05-27
SXS6XD SunExpress 3 2026-05-29
SXS5ET SunExpress 3 2026-05-27
SXS4RX SunExpress 3 2026-05-29
SXS41C SunExpress 3 2026-05-29
SXS36L SunExpress 3 2026-05-29
SXS9ZB SunExpress 2 2026-04-24
SXS9SC SunExpress 2 2026-04-17
SXS9KN SunExpress 2 2026-05-05
SXS8QB SunExpress 2 2026-05-06
SXS8JX SunExpress 2 2026-04-18
SXS6RK SunExpress 2 2026-05-10
SXS6EG SunExpress 2 2026-05-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 SXS7UJ CGN → AYT May 30, 10:55 UTCMay 30, 13:50 UTC2h 55m
2026-05-30 SXS8UH AYT → ADB May 30, 05:50 UTCMay 30, 09:25 UTC3h 35m
2026-05-29 SXS6XD CGN → AYT May 29, 22:55 UTCMay 30, 02:00 UTC3h 5m
2026-05-29 SXS4RX AYT → CGN May 29, 17:05 UTCMay 29, 20:55 UTC3h 50m
2026-05-29 SXS36L VIE → AYT May 29, 13:15 UTCMay 29, 15:30 UTC2h 15m
2026-05-29 SXS41C AYT → NUE May 29, 09:25 UTCMay 29, 12:00 UTC2h 35m
2026-05-29 SXS6HY DIY → AYT May 29, 04:10 UTCMay 29, 07:45 UTC3h 35m
2026-05-28 SXS2GA CGN → AYT May 28, 23:00 UTCMay 29, 02:00 UTC3h 0m
2026-05-28 SXS1XU AYT → CGN May 28, 18:05 UTCMay 28, 21:40 UTC3h 35m
2026-05-28 SXS4AC FRA → AYT May 28, 12:30 UTCMay 28, 15:30 UTC3h 0m
2026-05-28 SXS9HP AYT → FRA May 28, 07:25 UTCMay 28, 10:50 UTC3h 25m
2026-05-28 SXS6CH HAJ → AYT May 28, 01:25 UTCMay 28, 04:05 UTC2h 40m
2026-05-27 SXS4BD AYT → NUE May 27, 21:00 UTCMay 28, 00:05 UTC3h 5m
2026-05-27 SXS8JE BER → BJV May 27, 16:50 UTCMay 27, 19:50 UTC3h 0m
2026-05-27 SXS5ET AYT → ZRH May 27, 12:30 UTCMay 27, 15:45 UTC3h 15m
2026-05-27 SXS8ZN STR → AYT May 27, 06:25 UTCMay 27, 09:35 UTC3h 11m
2026-05-26 SXS4FH HAJ → EZS May 26, 18:05 UTCMay 26, 20:24 UTC2h 20m
2026-05-26 SXS5MZ DUS → EZS May 26, 06:29 UTCMay 26, 09:04 UTC2h 35m
2026-05-26 SXS13X - May 26, 01:14 UTCMay 26, 04:39 UTC3h 25m
2026-05-25 SXS5HU BER → AYT May 25, 19:25 UTCMay 25, 22:19 UTC2h 55m
2026-05-25 SXS6XP AYT → BER May 25, 14:55 UTCMay 25, 18:00 UTC3h 5m
2026-05-25 SXS1CM BER → AYT May 25, 10:25 UTCMay 25, 13:15 UTC2h 50m
2026-05-25 SXS8RG AYT → BER May 25, 06:10 UTCMay 25, 09:05 UTC2h 55m
2026-05-24 SXS6CH HAJ → AYT May 24, 21:00 UTCMay 25, 04:10 UTC7h 10m
2026-05-24 SXS9KZ STR → AYT May 24, 15:15 UTCMay 24, 18:25 UTC3h 10m
2026-05-24 SXS4ZJ AYT → GVA May 24, 10:35 UTCMay 24, 13:55 UTC3h 20m
2026-05-24 SXS651 SOF → AYT May 24, 07:00 UTCMay 24, 08:15 UTC1h 15m
2026-05-24 SXS34J AYT → MXP May 24, 04:35 UTCMay 24, 05:40 UTC1h 5m
2026-05-23 SXS3SB ZRH → AYT May 23, 18:45 UTCMay 23, 21:35 UTC2h 50m
2026-05-23 SXS48T - May 23, 14:15 UTCMay 23, 17:20 UTC3h 5m
2026-05-23 SXS7HD MAN → AYT May 23, 08:40 UTCMay 23, 11:20 UTC2h 40m
2026-05-23 SXS5WF AYT → MUC May 23, 04:20 UTCMay 23, 07:05 UTC2h 45m
2026-05-23 SXS8VF PRN → AYT May 23, 01:00 UTCMay 23, 02:35 UTC1h 34m
2026-05-22 SXS5CJ AYT → GZT May 22, 22:20 UTCMay 22, 23:40 UTC1h 20m
2026-05-22 SXS98G DUS → AYT May 22, 17:25 UTCMay 22, 20:40 UTC3h 15m
2026-05-22 SXS8JF BJV → DUS May 22, 12:55 UTCMay 22, 15:55 UTC3h 0m
2026-05-22 SXS7HB - May 22, 06:25 UTCMay 22, 09:15 UTC2h 50m
2026-05-21 SXS2FW STN → GZT May 21, 18:55 UTCMay 22, 04:45 UTC9h 50m
2026-05-21 SXS5YP AYT → FRA May 21, 13:15 UTCMay 21, 17:15 UTC4h 0m
2026-05-21 SXS6DZ BLL → AYT May 21, 08:20 UTCMay 21, 11:30 UTC3h 10m
2026-05-21 SXS7HV AYT → BLL May 21, 03:30 UTCMay 21, 07:00 UTC3h 30m
2026-05-20 SXS070 - May 20, 05:20 UTCMay 20, 11:55 UTC6h 35m
2026-05-20 SXS3FP CGN → AYT May 20, 00:00 UTCMay 20, 03:05 UTC3h 5m
2026-05-19 SXS3ZX - May 19, 18:50 UTCMay 19, 22:15 UTC3h 25m
2026-05-19 SXS1ZN HAM → AYT May 19, 11:45 UTCMay 19, 14:55 UTC3h 10m
2026-05-19 SXS6EG AYT → HAM May 19, 07:05 UTCMay 19, 10:20 UTC3h 15m
2026-05-18 SXS7HT LEJ → AYT May 18, 15:35 UTCMay 18, 18:30 UTC2h 54m
2026-05-18 SXS9EP AYT → LEJ May 18, 11:20 UTCMay 18, 14:20 UTC3h 0m
2026-05-18 SXS5NW AYT → DUS May 18, 07:00 UTCMay 18, 09:40 UTC2h 40m
2026-05-18 SXS4RM AYT → DRS May 18, 02:50 UTCMay 18, 05:35 UTC2h 45m

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

Mode-S 4BCE04 frequently asked

What is Mode-S code 4BCE04?
4BCE04 is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-SPD.
Where is Mode-S 4BCE04 registered?
Mode-S code 4BCE04 is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BCE04 broadcasting right now?
Yes. Mode-S 4BCE04 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BCE04, octal 22747004, decimal 4,967,940.
What flights does 4BCE04 operate?
Mode-S 4BCE04 has broadcast 20 distinct callsigns, including SXS5YP, SXS9EP, SXS7HT, SXS4UA, SXS9ZL.