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sensors Mode-S transponder

4BCE19

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-SPY · BOEING 737-800

Hex
4BCE19
Octal
22747031
Decimal
4,967,961
Country
TR
Tail
TC-SPY
Type
B738
No current signal · last broadcast 2h ago
Flights observed
314
Distinct callsigns
20
Country
TR
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 4BCE19.

Country allocation

The ICAO 24-bit address 4BCE19 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
SXS8BU SunExpress 4 2026-05-19
SXS6XR SunExpress 4 2026-06-10
SXS6BM SunExpress 4 2026-06-09
SXS5NG - 4 2026-07-12
SXS4QE - 4 2026-07-11
SXS4HL SunExpress 4 2026-05-19
SXS41C - 4 2026-07-02
SXS3ZX - 4 2026-07-06
SXS3FP - 4 2026-07-06
SXS36L SunExpress 4 2026-07-02
SXS2LL - 4 2026-07-12
SXS9SE SunExpress 3 2026-06-20
SXS98G - 3 2026-07-09
SXS965 - 3 2026-06-19
SXS8GT SunExpress 3 2026-04-17
SXS7QF - 3 2026-07-09
SXS7JR - 3 2026-07-05
SXS7EC - 3 2026-07-10
SXS7DQ - 3 2026-06-21
SXS7AM SunExpress 3 2026-06-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 SXS3QR - Jul 14, 12:00 UTCJul 14, 13:50 UTC1h 50m
2026-07-14 SXS6DP VIE → AYT Jul 14, 06:45 UTCJul 14, 09:05 UTC2h 20m
2026-07-14 SXS43G - Jul 14, 02:45 UTCJul 14, 05:15 UTC2h 30m
2026-07-13 SXS5NH HAM → AYT Jul 13, 19:00 UTCJul 13, 22:05 UTC3h 5m
2026-07-13 SXS6PC - Jul 13, 13:35 UTCJul 13, 16:55 UTC3h 20m
2026-07-13 SXS8HN HAM → AYT Jul 13, 08:50 UTCJul 13, 12:15 UTC3h 25m
2026-07-13 SXS9LQ - Jul 13, 04:10 UTCJul 13, 07:25 UTC3h 15m
2026-07-12 SXS2LL STR → AYT Jul 12, 18:50 UTCJul 12, 21:35 UTC2h 45m
2026-07-12 SXS5NG - Jul 12, 14:30 UTCJul 12, 17:40 UTC3h 10m
2026-07-12 SXS5NW - Jul 12, 07:01 UTCJul 12, 09:30 UTC2h 30m
2026-07-12 SXS4RM - Jul 12, 02:50 UTCJul 12, 05:40 UTC2h 50m
2026-07-11 SXS2LL STR → AYT Jul 11, 19:00 UTCJul 11, 21:50 UTC2h 50m
2026-07-11 SXS5NG - Jul 11, 14:30 UTCJul 11, 17:45 UTC3h 15m
2026-07-11 SXS5BV - Jul 11, 09:30 UTCJul 11, 12:45 UTC3h 15m
2026-07-11 SXS4QE - Jul 11, 04:45 UTCJul 11, 08:20 UTC3h 35m
2026-07-11 SXS75K HAJ → AYT Jul 11, 00:05 UTCJul 11, 03:15 UTC3h 10m
2026-07-10 SXS7EC - Jul 10, 19:00 UTCJul 10, 22:30 UTC3h 31m
2026-07-10 SXS2WP - Jul 10, 14:35 UTCJul 10, 17:20 UTC2h 45m
2026-07-10 SXS6JX - Jul 10, 10:00 UTCJul 10, 13:05 UTC3h 5m
2026-07-10 SXS9UK - Jul 10, 06:20 UTCJul 10, 08:45 UTC2h 25m
2026-07-10 SXS8SR - Jul 10, 02:15 UTCJul 10, 05:00 UTC2h 45m
2026-07-09 SXS98G - Jul 9, 17:20 UTCJul 9, 20:30 UTC3h 10m
2026-07-09 SXS7QF - Jul 9, 12:20 UTCJul 9, 16:00 UTC3h 40m
2026-07-09 SXS2HQ - Jul 9, 07:50 UTCJul 9, 10:55 UTC3h 5m
2026-07-09 SXS51C - Jul 9, 02:40 UTCJul 9, 06:10 UTC3h 30m
2026-07-08 SXS7RH OSR → AYT Jul 8, 18:30 UTCJul 8, 20:45 UTC2h 15m
2026-07-08 SXS8AY - Jul 8, 14:55 UTCJul 8, 17:30 UTC2h 35m
2026-07-08 SXS7JP - Jul 8, 10:20 UTCJul 8, 13:15 UTC2h 55m
2026-07-08 SXS4WY - Jul 8, 05:15 UTCJul 8, 08:45 UTC3h 30m
2026-07-07 SXS5NH - Jul 7, 18:50 UTCJul 7, 21:45 UTC2h 55m
2026-07-07 SXS6PC - Jul 7, 13:50 UTCJul 7, 17:20 UTC3h 30m
2026-07-07 SXS7CG - Jul 7, 08:30 UTCJul 7, 11:05 UTC2h 35m
2026-07-07 SXS8CB - Jul 7, 04:20 UTCJul 7, 07:10 UTC2h 50m
2026-07-06 SXS3FP CGN → AYT Jul 6, 23:40 UTCJul 7, 02:40 UTC3h 0m
2026-07-06 SXS3ZX - Jul 6, 18:50 UTCJul 6, 22:20 UTC3h 30m
2026-07-06 SXS5KE - Jul 6, 13:45 UTCJul 6, 16:50 UTC3h 5m
2026-07-06 SXS3TX - Jul 6, 08:25 UTCJul 6, 12:05 UTC3h 40m
2026-07-06 SXS8SA - Jul 6, 06:25 UTCJul 6, 07:10 UTC45m
2026-07-06 SXS9ZB - Jul 6, 04:35 UTCJul 6, 04:55 UTC20m
2026-07-06 SXS9WA - Jul 6, 00:00 UTCJul 6, 02:55 UTC2h 55m
2026-07-05 SXS4WM AYT → PAD Jul 5, 19:25 UTCJul 5, 22:50 UTC3h 25m
2026-07-05 SXS7JR - Jul 5, 14:30 UTCJul 5, 17:35 UTC3h 5m
2026-07-05 SXS6MF - Jul 5, 09:15 UTCJul 5, 12:55 UTC3h 40m
2026-07-04 SXS5NH HAM → AYT Jul 4, 18:30 UTCJul 4, 21:35 UTC3h 5m
2026-07-04 SXS6PC AYT → HAM Jul 4, 13:25 UTCJul 4, 17:10 UTC3h 45m
2026-07-04 SXS6EV - Jul 4, 09:05 UTCJul 4, 12:00 UTC2h 55m
2026-07-04 SXS6VQ - Jul 4, 04:10 UTCJul 4, 07:40 UTC3h 30m
2026-07-03 SXS2LL STR → AYT Jul 3, 19:10 UTCJul 3, 21:50 UTC2h 40m
2026-07-03 SXS5NG - Jul 3, 14:45 UTCJul 3, 18:00 UTC3h 15m
2026-07-03 SXS7JP - Jul 3, 10:30 UTCJul 3, 13:35 UTC3h 5m

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

Mode-S 4BCE19 frequently asked

What is Mode-S code 4BCE19?
4BCE19 is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-SPY.
Where is Mode-S 4BCE19 registered?
Mode-S code 4BCE19 is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BCE19 broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BCE19, octal 22747031, decimal 4,967,961.
What flights does 4BCE19 operate?
Mode-S 4BCE19 has broadcast 20 distinct callsigns, including SXS8BU, SXS6XR, SXS6BM, SXS5NG, SXS4QE.