Apparatus

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sensors Mode-S transponder

4BCDE1

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-SOA · BOEING 737-800

Hex
4BCDE1
Octal
22746741
Decimal
4,967,905
Country
TR
Tail
TC-SOA
Type
B738
No current signal · last broadcast 2h ago
Flights observed
173
Distinct callsigns
20
Country
TR
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 4BCDE1.

Country allocation

The ICAO 24-bit address 4BCDE1 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
SXS7RR SunExpress 7 2026-05-28
SXS5GX SunExpress 7 2026-05-28
SXS7KV SunExpress 6 2026-05-20
SXS5LU SunExpress 5 2026-05-18
SXS8WK SunExpress 4 2026-05-09
SXS7BN SunExpress 4 2026-05-18
SXS6ZL SunExpress 4 2026-05-28
SXS4UV SunExpress 4 2026-05-09
SXS7GP - 3 2026-05-13
SXS66D SunExpress 3 2026-05-21
SXS5LG SunExpress 3 2026-05-22
SXS2SB - 3 2026-05-14
SXS2BQ SunExpress 3 2026-05-22
SXS1WF SunExpress 3 2026-05-21
SXS9SE SunExpress 2 2026-05-24
SXS8N SunExpress 2 2026-06-02
SXS8KV SunExpress 2 2026-05-20
SXS8BU SunExpress 2 2026-05-25
SXS7LM - 2 2026-05-25
SXS7GW SunExpress 2 2026-05-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-02 SXS5XB WAW → ADB Jun 2, 20:05 UTCJun 2, 22:05 UTC2h 0m
2026-06-02 SXS8N ADB → CGN Jun 2, 16:10 UTCJun 2, 18:35 UTC2h 25m
2026-06-02 SXS8PJ HAJ → DIY Jun 2, 06:05 UTCJun 2, 13:05 UTC7h 0m
2026-06-01 SXS57V FRA → HAJ Jun 1, 19:00 UTCJun 2, 04:30 UTC9h 30m
2026-06-01 SXS7FG GZT → FRA Jun 1, 08:15 UTCJun 1, 17:00 UTC8h 45m
2026-06-01 SXS4BW ESB → STR Jun 1, 03:55 UTCJun 1, 06:40 UTC2h 45m
2026-05-31 SXS5KX DUS → ESB May 31, 19:20 UTCMay 31, 22:05 UTC2h 45m
2026-05-31 SXS2CY ESB → DUS May 31, 13:45 UTCMay 31, 16:55 UTC3h 10m
2026-05-31 SXS4BT DIY → FRA May 31, 09:00 UTCMay 31, 11:30 UTC2h 30m
2026-05-30 SXS8NP ESB → VIE May 30, 20:45 UTCMay 30, 22:55 UTC2h 10m
2026-05-30 SXS3XF MUC → ESB May 30, 16:40 UTCMay 30, 18:45 UTC2h 5m
2026-05-30 SXS1MG ESB → MUC May 30, 12:35 UTCMay 30, 15:15 UTC2h 40m
2026-05-30 SXS6HR BRU → AYT May 30, 07:50 UTCMay 30, 10:10 UTC2h 20m
2026-05-30 SXS8YQ ESB → FRA May 30, 02:40 UTCMay 30, 05:45 UTC3h 5m
2026-05-29 SXS5KX DUS → ESB May 29, 19:10 UTCMay 29, 21:55 UTC2h 45m
2026-05-29 SXS2CY ESB → DUS May 29, 13:35 UTCMay 29, 16:45 UTC3h 11m
2026-05-29 SXS3XF MUC → ESB May 29, 09:45 UTCMay 29, 11:45 UTC2h 0m
2026-05-29 SXS8GA ADB → MUC May 29, 05:45 UTCMay 29, 08:15 UTC2h 30m
2026-05-28 SXS5TW - May 28, 17:40 UTCMay 28, 22:15 UTC4h 35m
2026-05-28 SXS7RR ZRH → ADB May 28, 13:25 UTCMay 28, 15:40 UTC2h 15m
2026-05-28 SXS5GX ADB → ZRH May 28, 09:25 UTCMay 28, 12:05 UTC2h 40m
2026-05-28 SXS6ZL ADB → VAN May 28, 03:15 UTCMay 28, 08:00 UTC4h 45m
2026-05-27 SXS6TB SOF → ADB May 27, 09:15 UTCMay 27, 10:05 UTC50m
2026-05-27 SXS7VF ADB → SOF May 27, 06:55 UTCMay 27, 07:45 UTC50m
2026-05-26 SXS5FR DUS → SZF May 26, 23:29 UTCMay 27, 02:09 UTC2h 40m
2026-05-26 SXS5GG ADB → BRU May 26, 18:24 UTCMay 26, 21:20 UTC2h 55m
2026-05-26 SXS4EC STR → ADB May 26, 14:20 UTCMay 26, 16:40 UTC2h 20m
2026-05-26 SXS3AQ BJV → STR May 26, 10:05 UTCMay 26, 12:30 UTC2h 25m
2026-05-26 SXS7SA ADB → EIN May 26, 06:04 UTCMay 26, 08:30 UTC2h 25m
2026-05-26 SXS7KP ADB → STR May 26, 01:49 UTCMay 26, 04:24 UTC2h 35m
2026-05-25 SXS7LM - May 25, 18:10 UTCMay 25, 21:35 UTC3h 24m
2026-05-25 SXS8BU ASR → DUS May 25, 13:00 UTCMay 25, 15:20 UTC2h 20m
2026-05-25 SXS4HL ADB → STR May 25, 09:15 UTCMay 25, 11:45 UTC2h 30m
2026-05-25 SXS6N ABZ → DLM May 25, 03:20 UTCMay 25, 07:10 UTC3h 50m
2026-05-24 SXS4TD - May 24, 17:55 UTCMay 24, 20:50 UTC2h 55m
2026-05-24 SXS9SE BER → ADB May 24, 13:15 UTCMay 24, 15:40 UTC2h 25m
2026-05-24 SXS5UY ADB → BER May 24, 08:55 UTCMay 24, 11:35 UTC2h 40m
2026-05-24 SXS7GW MSR → ADB May 24, 02:35 UTCMay 24, 07:25 UTC4h 50m
2026-05-23 SXS4HF SZF → ADB May 23, 21:35 UTCMay 23, 21:55 UTC20m
2026-05-23 SXS6DY ADB → EIN May 23, 18:30 UTCMay 23, 18:55 UTC25m
2026-05-23 SXS8VB HAM → ADB May 23, 13:25 UTCMay 23, 16:15 UTC2h 50m
2026-05-23 SXS4AX ADB → HAM May 23, 09:00 UTCMay 23, 12:00 UTC3h 0m
2026-05-23 SXS5WQ - May 23, 06:00 UTCMay 23, 06:50 UTC50m
2026-05-23 SXS6SB ADB → STR May 23, 03:50 UTCMay 23, 04:35 UTC45m
2026-05-22 SXS2BQ STN → ADB May 22, 21:50 UTCMay 23, 01:05 UTC3h 15m
2026-05-22 SXS5LG ADB → STN May 22, 17:10 UTCMay 22, 20:40 UTC3h 30m
2026-05-22 SXS7RR ZRH → ADB May 22, 13:15 UTCMay 22, 15:40 UTC2h 25m
2026-05-22 SXS5GX ADB → ZRH May 22, 09:30 UTCMay 22, 12:00 UTC2h 30m
2026-05-22 SXS7EL TZX → ADB May 22, 06:40 UTCMay 22, 07:00 UTC20m
2026-05-22 SXS6ZT ADB → TZX May 22, 02:50 UTCMay 22, 04:20 UTC1h 30m

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

Mode-S 4BCDE1 frequently asked

What is Mode-S code 4BCDE1?
4BCDE1 is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-SOA.
Where is Mode-S 4BCDE1 registered?
Mode-S code 4BCDE1 is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BCDE1 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 4BCDE1, octal 22746741, decimal 4,967,905.
What flights does 4BCDE1 operate?
Mode-S 4BCDE1 has broadcast 20 distinct callsigns, including SXS7RR, SXS5GX, SXS7KV, SXS5LU, SXS8WK.