Apparatus

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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
Broadcasting now · callsign SXS5GX · 36,000 ft
Flights observed
149
Distinct callsigns
20
Country
TR
Last broadcast
6h ago

Current position

4BCE19 is currently broadcasting. Map zoomed to live position.

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
SXS4HL SunExpress 4 2026-05-19
SXS8GT SunExpress 3 2026-04-17
SXS6XR SunExpress 3 2026-04-18
SXS6BM SunExpress 3 2026-04-18
SXS4VD SunExpress 3 2026-05-23
SXS4QE SunExpress 3 2026-04-15
SXS1KH SunExpress 3 2026-04-23
SXS9SC SunExpress 2 2026-05-24
SXS9CU - 2 2026-05-28
SXS98G SunExpress 2 2026-05-21
SXS965 SunExpress 2 2026-05-27
SXS8TG SunExpress 2 2026-04-14
SXS8KV SunExpress 2 2026-05-24
SXS8CV SunExpress 2 2026-05-12
SXS7QF SunExpress 2 2026-05-21
SXS7GW SunExpress 2 2026-05-09
SXS7EC SunExpress 2 2026-04-13
SXS7AM SunExpress 2 2026-05-15
SXS73E SunExpress 2 2026-05-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 SXS4FC ADB → GNY May 29, 18:30 UTCMay 29, 22:20 UTC3h 50m
2026-05-29 SXS1LN DUS → ADB May 29, 14:30 UTCMay 29, 17:05 UTC2h 35m
2026-05-29 SXS7AK ADB → DUS May 29, 09:50 UTCMay 29, 12:50 UTC3h 0m
2026-05-28 SXS5QP ADB → MQM May 28, 17:40 UTCMay 28, 22:00 UTC4h 20m
2026-05-28 SXS9CU - May 28, 13:20 UTCMay 28, 15:25 UTC2h 5m
2026-05-28 SXS68T ADB → MXP May 28, 09:05 UTCMay 28, 11:40 UTC2h 35m
2026-05-27 SXS965 SKD → ADB May 27, 18:15 UTCMay 28, 04:40 UTC10h 25m
2026-05-27 SXS7XL NUE → ADB May 27, 13:55 UTCMay 27, 16:15 UTC2h 20m
2026-05-27 SXS7LC ADB → NUE May 27, 10:00 UTCMay 27, 12:45 UTC2h 45m
2026-05-27 SXS7KV CGN → AYT May 27, 03:24 UTCMay 27, 07:55 UTC4h 30m
2026-05-26 SXS3QB ADB → ASR May 26, 18:05 UTCMay 26, 21:04 UTC3h 0m
2026-05-26 SXS9SE BER → ADB May 26, 13:50 UTCMay 26, 16:15 UTC2h 25m
2026-05-26 SXS5UY ADB → BER May 26, 09:40 UTCMay 26, 12:14 UTC2h 35m
2026-05-25 SXS9DA CDG → ADB May 25, 18:35 UTCMay 25, 21:40 UTC3h 4m
2026-05-25 SXS2XZ ADB → CDG May 25, 14:00 UTCMay 25, 17:05 UTC3h 5m
2026-05-24 SXS6TQ ECN → ADB May 24, 20:50 UTCMay 24, 21:50 UTC1h 0m
2026-05-24 SXS8KV ADB → ECN May 24, 18:35 UTCMay 24, 19:35 UTC1h 0m
2026-05-24 SXS9084 ADB → VAN May 24, 12:30 UTCMay 24, 17:05 UTC4h 35m
2026-05-24 SXS1XE - May 24, 10:30 UTCMay 24, 11:05 UTC35m
2026-05-24 SXS9SC DUS → ONQ May 24, 08:30 UTCMay 24, 08:40 UTC10m
2026-05-24 SXS9SC DUS → ONQ May 24, 07:20 UTCMay 24, 07:50 UTC30m
2026-05-24 SXS3VR - May 24, 04:35 UTCMay 24, 06:05 UTC1h 30m
2026-05-23 SXS4VD CPH → AYT May 23, 23:45 UTCMay 24, 03:15 UTC3h 30m
2026-05-23 SXS1EN AYT → CPH May 23, 18:45 UTCMay 23, 20:50 UTC2h 5m
2026-05-23 SXS5KE DUS → AYT May 23, 13:30 UTCMay 23, 16:55 UTC3h 25m
2026-05-23 SXS3TX AYT → DUS May 23, 08:40 UTCMay 23, 12:00 UTC3h 20m
2026-05-23 SXS8SA - May 23, 06:45 UTCMay 23, 07:15 UTC30m
2026-05-23 SXS9ZB LTN → ADB May 23, 04:50 UTCMay 23, 05:10 UTC20m
2026-05-22 SXS3FP CGN → AYT May 22, 23:55 UTCMay 23, 03:15 UTC3h 19m
2026-05-22 SXS3ZX - May 22, 19:10 UTCMay 22, 22:35 UTC3h 25m
2026-05-22 SXS1ZM STR → AYT May 22, 14:45 UTCMay 22, 17:40 UTC2h 55m
2026-05-22 SXS3ZA ADB → SAW May 22, 10:25 UTCMay 22, 13:25 UTC3h 0m
2026-05-22 SXS4HK DIY → STR May 22, 07:35 UTCMay 22, 08:35 UTC1h 0m
2026-05-22 SXS3PU ADB → CGN May 22, 04:50 UTCMay 22, 06:20 UTC1h 30m
2026-05-21 SXS98G DUS → AYT May 21, 17:45 UTCMay 21, 20:55 UTC3h 10m
2026-05-21 SXS7QF AYT → DUS May 21, 12:40 UTCMay 21, 16:05 UTC3h 25m
2026-05-21 SXS5JR BRE → AYT May 21, 08:25 UTCMay 21, 10:10 UTC1h 45m
2026-05-21 SXS7CC - May 21, 05:00 UTCMay 21, 07:05 UTC2h 5m
2026-05-20 SXS2GA CGN → AYT May 20, 23:00 UTCMay 21, 02:00 UTC3h 0m
2026-05-20 SXS1XU AYT → CGN May 20, 18:10 UTCMay 20, 21:40 UTC3h 30m
2026-05-20 SXS1ZN HAM → AYT May 20, 12:05 UTCMay 20, 15:05 UTC3h 0m
2026-05-20 SXS6EG AYT → HAM May 20, 07:15 UTCMay 20, 10:35 UTC3h 20m
2026-05-20 SXS4KP ADB → AYT May 20, 04:15 UTCMay 20, 04:55 UTC41m
2026-05-19 SXS1YB ASR → ADB May 19, 18:10 UTCMay 19, 21:15 UTC3h 5m
2026-05-19 SXS8BU ASR → DUS May 19, 13:10 UTCMay 19, 15:30 UTC2h 20m
2026-05-19 SXS4HL ADB → STR May 19, 09:10 UTCMay 19, 11:40 UTC2h 30m
2026-05-18 SXS7EL TZX → ADB May 18, 20:30 UTCMay 18, 22:05 UTC1h 35m
2026-05-18 SXS6ZT ADB → TZX May 18, 19:15 UTCMay 18, 19:25 UTC10m
2026-05-18 SXS6ZT ADB → TZX May 18, 18:00 UTCMay 18, 18:15 UTC15m
2026-05-18 SXS8BU ASR → DUS May 18, 13:20 UTCMay 18, 15:40 UTC2h 20m

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?
Yes. Mode-S 4BCE19 is currently airborne.
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, SXS4HL, SXS8GT, SXS6XR, SXS6BM.