Apparatus

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sensors Mode-S transponder

4BCE15

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-SPU · BOEING 737-800

Hex
4BCE15
Octal
22747025
Decimal
4,967,957
Country
TR
Tail
TC-SPU
Type
B738
No current signal · last broadcast 44m ago
Flights observed
298
Distinct callsigns
20
Country
TR
Last broadcast
44m ago

Last known position

Most recent position reported by Mode-S 4BCE15.

Country allocation

The ICAO 24-bit address 4BCE15 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
SXS8WK SunExpress 7 2026-04-24
SXS6A SunExpress 4 2026-04-17
SXS3WT - 4 2026-07-12
SXS3LW SunExpress 4 2026-04-24
SXS9PA - 3 2026-07-12
SXS965 - 3 2026-06-17
SXS6MF - 3 2026-07-04
SXS5YP SunExpress 3 2026-05-23
SXS4XH - 3 2026-07-08
SXS4UV SunExpress 3 2026-04-24
SXS4TD - 3 2026-07-08
SXS1XE - 3 2026-04-26
SXS9ZT SunExpress 2 2026-04-16
SXS9SR - 2 2026-06-02
SXS9LY SunExpress 2 2026-05-18
SXS9KF - 2 2026-06-29
SXS9HN SunExpress 2 2026-05-18
SXS964 - 2 2026-04-17
SXS8TG SunExpress 2 2026-05-30
SXS8NM SunExpress 2 2026-05-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 SXS8YQ - Jul 14, 02:45 UTCJul 14, 05:15 UTC2h 30m
2026-07-13 SXS8QP - Jul 13, 18:40 UTCJul 13, 20:55 UTC2h 15m
2026-07-13 SXS2VP - Jul 13, 06:30 UTCJul 13, 09:10 UTC2h 40m
2026-07-13 SXS7WQ TZX → DUS Jul 13, 00:45 UTCJul 13, 04:40 UTC3h 55m
2026-07-12 SXS9PA - Jul 12, 19:35 UTCJul 12, 22:10 UTC2h 35m
2026-07-12 SXS62Q - Jul 12, 14:40 UTCJul 12, 18:15 UTC3h 35m
2026-07-12 SXS3WT - Jul 12, 08:15 UTCJul 12, 09:00 UTC45m
2026-07-12 SXS8ZW - Jul 12, 06:20 UTCJul 12, 07:01 UTC40m
2026-07-12 SXS4KP - Jul 12, 04:20 UTCJul 12, 05:15 UTC55m
2026-07-11 SXS5Y - Jul 11, 21:05 UTCJul 11, 22:10 UTC1h 5m
2026-07-11 SXS7LM - Jul 11, 18:40 UTCJul 11, 19:35 UTC55m
2026-07-11 SXS8BU - Jul 11, 13:50 UTCJul 11, 16:05 UTC2h 15m
2026-07-11 SXS4HL - Jul 11, 10:00 UTCJul 11, 12:35 UTC2h 35m
2026-07-11 SXS4EC - Jul 11, 05:25 UTCJul 11, 07:45 UTC2h 20m
2026-07-11 SXS7KP - Jul 11, 01:30 UTCJul 11, 04:10 UTC2h 40m
2026-07-10 SXS5VF - Jul 10, 18:35 UTCJul 10, 22:10 UTC3h 35m
2026-07-10 SXS7BY - Jul 10, 12:25 UTCJul 10, 16:50 UTC4h 25m
2026-07-10 SXS7GT - Jul 10, 08:05 UTCJul 10, 10:15 UTC2h 10m
2026-07-10 SXS2ZJ - Jul 10, 03:45 UTCJul 10, 06:35 UTC2h 50m
2026-07-10 SXS6UG - Jul 10, 01:20 UTCJul 10, 02:00 UTC40m
2026-07-09 SXS896 - Jul 9, 23:05 UTCJul 9, 23:55 UTC50m
2026-07-09 SXS5SV - Jul 9, 16:30 UTCJul 9, 19:10 UTC2h 40m
2026-07-09 SXS3AV - Jul 9, 11:40 UTCJul 9, 15:00 UTC3h 20m
2026-07-09 SXS3CA - Jul 9, 06:35 UTCJul 9, 09:25 UTC2h 50m
2026-07-09 SXS1XP - Jul 9, 02:00 UTCJul 9, 05:15 UTC3h 15m
2026-07-08 SXS4TD - Jul 8, 20:20 UTCJul 8, 21:05 UTC45m
2026-07-08 SXS4XH - Jul 8, 18:10 UTCJul 8, 18:50 UTC40m
2026-07-08 SXS7WX - Jul 8, 13:55 UTCJul 8, 16:10 UTC2h 15m
2026-07-08 SXS3WY - Jul 8, 09:40 UTCJul 8, 12:45 UTC3h 5m
2026-07-08 SXS9PG - Jul 8, 04:15 UTCJul 8, 06:40 UTC2h 25m
2026-07-07 SXS6YM - Jul 7, 22:40 UTCJul 8, 01:55 UTC3h 15m
2026-07-07 SXS4UM - Jul 7, 13:10 UTCJul 7, 15:45 UTC2h 35m
2026-07-07 SXS7DU - Jul 7, 08:55 UTCJul 7, 12:05 UTC3h 10m
2026-07-07 SXS2HG - Jul 7, 05:45 UTCJul 7, 06:45 UTC1h 0m
2026-07-07 SXS2Y - Jul 7, 03:05 UTCJul 7, 04:00 UTC55m
2026-07-06 SXS23Q - Jul 6, 18:55 UTCJul 6, 21:15 UTC2h 20m
2026-07-06 SXS7FG STR → FRA Jul 6, 08:25 UTCJul 6, 17:15 UTC8h 50m
2026-07-06 SXS4BW - Jul 6, 04:00 UTCJul 6, 06:45 UTC2h 45m
2026-07-05 SXS6LY - Jul 5, 20:35 UTCJul 5, 23:15 UTC2h 40m
2026-07-05 SXS2BA AMS → HAJ Jul 5, 10:00 UTCJul 5, 18:40 UTC8h 40m
2026-07-04 SXS1728 DUS → AMS Jul 4, 19:15 UTCJul 5, 07:50 UTC12h 35m
2026-07-04 SXS6MF - Jul 4, 13:10 UTCJul 4, 16:55 UTC3h 45m
2026-07-03 SXS7UZ MUC → AYT Jul 3, 17:15 UTCJul 3, 19:40 UTC2h 25m
2026-07-03 SXS6WK STR → MUC Jul 3, 06:05 UTCJul 3, 15:50 UTC9h 45m
2026-07-03 SXS4RD - Jul 3, 01:45 UTCJul 3, 04:25 UTC2h 40m
2026-07-02 SXS7VE - Jul 2, 18:25 UTCJul 2, 21:00 UTC2h 35m
2026-07-02 SXS3GC - Jul 2, 14:20 UTCJul 2, 17:10 UTC2h 50m
2026-07-02 SXS3XF - Jul 2, 10:20 UTCJul 2, 12:30 UTC2h 10m
2026-07-01 SXS5KX DUS → MUC Jul 1, 19:10 UTCJul 2, 07:45 UTC12h 35m
2026-07-01 SXS7WQ - Jul 1, 13:25 UTCJul 1, 17:10 UTC3h 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-SPU page for operator, model, and routing details .

Mode-S 4BCE15 frequently asked

What is Mode-S code 4BCE15?
4BCE15 is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-SPU.
Where is Mode-S 4BCE15 registered?
Mode-S code 4BCE15 is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BCE15 broadcasting right now?
No active broadcast right now. Last signal was 44m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BCE15, octal 22747025, decimal 4,967,957.
What flights does 4BCE15 operate?
Mode-S 4BCE15 has broadcast 20 distinct callsigns, including SXS8WK, SXS6A, SXS3WT, SXS3LW, SXS9PA.