Apparatus

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sensors Mode-S transponder

4BCDE3

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-SOC · BOEING 737-800

Hex
4BCDE3
Octal
22746743
Decimal
4,967,907
Country
TR
Tail
TC-SOC
Type
B738
No current signal · last broadcast 6h ago
Flights observed
349
Distinct callsigns
20
Country
TR
Last broadcast
6h ago

Last known position

Most recent position reported by Mode-S 4BCDE3.

Country allocation

The ICAO 24-bit address 4BCDE3 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
SXS8GT - 13 2026-07-12
SXS3XK - 12 2026-07-12
SXS4RN - 9 2026-07-08
SXS3RT - 9 2026-07-08
SXS2CY SunExpress 5 2026-05-19
SXS1MG SunExpress 5 2026-05-31
SXS8LW - 4 2026-07-09
SXS7CC - 4 2026-07-07
SXS6PZ - 4 2026-06-26
SXS4SB - 4 2026-07-09
SXS4MB SunExpress 4 2026-05-18
SXS46A - 4 2026-07-03
SXS2LL SunExpress 4 2026-05-27
SXS14E - 4 2026-06-26
SXS9SR - 3 2026-04-18
SXS75H SunExpress 3 2026-05-29
SXS6RK SunExpress 3 2026-05-22
SXS5KX - 3 2026-04-13
SXS3XF SunExpress 3 2026-04-15
SXS3WH SunExpress 3 2026-05-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 SXS4TD - Jul 13, 20:30 UTCJul 13, 21:25 UTC55m
2026-07-13 SXS4XH - Jul 13, 18:15 UTCJul 13, 19:00 UTC45m
2026-07-13 SXS6UG - Jul 13, 01:20 UTCJul 13, 02:05 UTC45m
2026-07-12 SXS896 - Jul 12, 23:10 UTCJul 13, 00:01 UTC50m
2026-07-12 SXS2HB - Jul 12, 17:35 UTCJul 12, 18:20 UTC45m
2026-07-12 SXS3XK DTM → AYT Jul 12, 12:01 UTCJul 12, 15:01 UTC3h 0m
2026-07-12 SXS8GT - Jul 12, 07:25 UTCJul 12, 10:45 UTC3h 20m
2026-07-11 SXS5NH HAM → AYT Jul 11, 20:10 UTCJul 11, 23:20 UTC3h 10m
2026-07-11 SXS6PC - Jul 11, 15:35 UTCJul 11, 19:00 UTC3h 25m
2026-07-11 SXS6FT - Jul 11, 07:05 UTCJul 11, 13:45 UTC6h 40m
2026-07-11 SXS2UK - Jul 11, 02:15 UTCJul 11, 04:55 UTC2h 40m
2026-07-10 SXS2VP - Jul 10, 19:05 UTCJul 10, 21:30 UTC2h 25m
2026-07-10 SXS62Q - Jul 10, 13:55 UTCJul 10, 17:35 UTC3h 40m
2026-07-10 SXS78U - Jul 10, 09:20 UTCJul 10, 12:05 UTC2h 45m
2026-07-10 SXS77Z - Jul 10, 04:45 UTCJul 10, 07:50 UTC3h 5m
2026-07-09 SXS4ZH - Jul 9, 23:25 UTCJul 10, 01:30 UTC2h 5m
2026-07-09 SXS94B - Jul 9, 19:40 UTCJul 9, 22:10 UTC2h 30m
2026-07-09 SXS7QB ECN → AYT Jul 9, 17:20 UTCJul 9, 17:55 UTC35m
2026-07-09 SXS5YB AYT → ECN Jul 9, 15:20 UTCJul 9, 15:55 UTC35m
2026-07-09 SXS225 - Jul 9, 12:55 UTCJul 9, 14:00 UTC1h 5m
2026-07-09 SXS224 - Jul 9, 10:00 UTCJul 9, 11:05 UTC1h 5m
2026-07-09 SXS8LW - Jul 9, 05:40 UTCJul 9, 08:25 UTC2h 45m
2026-07-09 SXS4SB AYT → STR Jul 9, 01:10 UTCJul 9, 04:20 UTC3h 10m
2026-07-08 SXS8LA HAM → AYT Jul 8, 19:05 UTCJul 8, 22:10 UTC3h 5m
2026-07-08 SXS8NM AYT → HAM Jul 8, 14:15 UTCJul 8, 18:00 UTC3h 45m
2026-07-08 SXS4RN - Jul 8, 09:30 UTCJul 8, 12:30 UTC3h 0m
2026-07-08 SXS3RT - Jul 8, 04:55 UTCJul 8, 08:20 UTC3h 25m
2026-07-07 SXS2BB - Jul 7, 18:10 UTCJul 7, 21:00 UTC2h 50m
2026-07-07 SXS21R - Jul 7, 13:10 UTCJul 7, 16:40 UTC3h 30m
2026-07-07 SXS5JR - Jul 7, 08:05 UTCJul 7, 09:50 UTC1h 45m
2026-07-07 SXS7CC - Jul 7, 05:10 UTCJul 7, 07:05 UTC1h 55m
2026-07-06 SXS1ZQ NUE → AYT Jul 6, 22:20 UTCJul 7, 01:05 UTC2h 45m
2026-07-06 SXS6SF - Jul 6, 18:05 UTCJul 6, 21:05 UTC3h 0m
2026-07-06 SXS1ZN - Jul 6, 12:10 UTCJul 6, 15:10 UTC3h 0m
2026-07-06 SXS6EG - Jul 6, 07:20 UTCJul 6, 10:45 UTC3h 25m
2026-07-06 SXS3BV - Jul 6, 02:00 UTCJul 6, 05:05 UTC3h 5m
2026-07-05 SXS93K - Jul 5, 21:20 UTCJul 6, 00:50 UTC3h 30m
2026-07-05 SXS1ZM STR → AYT Jul 5, 17:05 UTCJul 5, 19:55 UTC2h 50m
2026-07-05 SXS3ZA - Jul 5, 12:50 UTCJul 5, 16:00 UTC3h 10m
2026-07-05 SXS84K HAJ → AYT Jul 5, 02:10 UTCJul 5, 05:10 UTC3h 0m
2026-07-04 SXS3XA AYT → HAJ Jul 4, 21:20 UTCJul 5, 00:55 UTC3h 35m
2026-07-04 SXS7UZ MUC → AYT Jul 4, 17:30 UTCJul 4, 20:15 UTC2h 45m
2026-07-04 SXS5TA - Jul 4, 12:55 UTCJul 4, 16:05 UTC3h 10m
2026-07-04 SXS4HK - Jul 4, 09:45 UTCJul 4, 11:20 UTC1h 35m
2026-07-04 SXS3PU - Jul 4, 07:10 UTCJul 4, 08:35 UTC1h 25m
2026-07-04 SXS2RJ - Jul 4, 02:00 UTCJul 4, 05:10 UTC3h 10m
2026-07-03 SXS9SB - Jul 3, 21:20 UTCJul 4, 00:30 UTC3h 10m
2026-07-03 SXS9XT AYT → CGN Jul 3, 17:20 UTCJul 3, 19:20 UTC2h 0m
2026-07-03 SXS5TA - Jul 3, 12:40 UTCJul 3, 15:40 UTC3h 0m
2026-07-03 SXS46A - Jul 3, 06:30 UTCJul 3, 09:20 UTC2h 50m

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

Mode-S 4BCDE3 frequently asked

What is Mode-S code 4BCDE3?
4BCDE3 is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-SOC.
Where is Mode-S 4BCDE3 registered?
Mode-S code 4BCDE3 is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BCDE3 broadcasting right now?
No active broadcast right now. Last signal was 6h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BCDE3, octal 22746743, decimal 4,967,907.
What flights does 4BCDE3 operate?
Mode-S 4BCDE3 has broadcast 20 distinct callsigns, including SXS8GT, SXS3XK, SXS4RN, SXS3RT, SXS2CY.