Apparatus

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sensors Mode-S transponder

4BCDE2

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-SOB · BOEING 737-800

Hex
4BCDE2
Octal
22746742
Decimal
4,967,906
Country
TR
Tail
TC-SOB
Type
B738
No current signal · last broadcast 48m ago
Flights observed
130
Distinct callsigns
20
Country
TR
Last broadcast
48m ago

Last known position

Most recent position reported by Mode-S 4BCDE2.

Country allocation

The ICAO 24-bit address 4BCDE2 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
SXS7EC - 3 2026-06-14
SXS75K - 3 2026-06-15
SXS3YD SunExpress 3 2026-06-10
SXS9ZB SunExpress 2 2026-06-03
SXS8YQ - 2 2026-06-27
SXS8WK SunExpress 2 2026-06-11
SXS8SA - 2 2026-06-03
SXS72X SunExpress 2 2026-06-08
SXS6ZH SunExpress 2 2026-06-13
SXS6XR SunExpress 2 2026-06-09
SXS6HR - 2 2026-06-27
SXS6BM SunExpress 2 2026-06-08
SXS69M SunExpress 2 2026-06-08
SXS4RN SunExpress 2 2026-05-31
SXS3UU SunExpress 2 2026-06-14
SXS3TX - 2 2026-06-15
SXS3KB SunExpress 2 2026-06-14
SXS9ZT SunExpress 1 2026-06-11
SXS9ZG SunExpress 1 2026-05-17
SXS9VD SunExpress 1 2026-05-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-28 SXS2CY - Jun 28, 13:29 UTCJun 28, 16:29 UTC3h 0m
2026-06-28 SXS4BT - Jun 28, 08:55 UTCJun 28, 11:39 UTC2h 45m
2026-06-28 SXS2XP - Jun 28, 04:40 UTCJun 28, 07:20 UTC2h 40m
2026-06-27 SXS3XF - Jun 27, 17:34 UTCJun 27, 19:55 UTC2h 20m
2026-06-27 SXS6HR FRA → MUC Jun 27, 09:04 UTCJun 27, 15:55 UTC6h 50m
2026-06-27 SXS8YQ - Jun 27, 05:15 UTCJun 27, 05:29 UTC15m
2026-06-26 SXS6HR - Jun 26, 19:35 UTCJun 26, 22:19 UTC2h 45m
2026-06-26 SXS8YQ - Jun 26, 14:39 UTCJun 26, 17:35 UTC2h 55m
2026-06-26 SXS3WH - Jun 26, 09:55 UTCJun 26, 12:50 UTC2h 55m
2026-06-25 SXS4MB - Jun 25, 15:40 UTCJun 26, 07:50 UTC16h 10m
2026-06-16 SXS052 - Jun 16, 02:09 UTCJun 16, 03:00 UTC50m
2026-06-15 SXS5KE DUS → AYT Jun 15, 13:34 UTCJun 15, 16:30 UTC2h 55m
2026-06-15 SXS3TX - Jun 15, 08:35 UTCJun 15, 12:15 UTC3h 40m
2026-06-15 SXS75K HAJ → AYT Jun 15, 00:10 UTCJun 15, 03:05 UTC2h 55m
2026-06-14 SXS7EC - Jun 14, 19:25 UTCJun 14, 22:55 UTC3h 30m
2026-06-14 SXS3UU ECN → AYT Jun 14, 07:45 UTCJun 14, 08:25 UTC40m
2026-06-14 SXS3KB BRU → ESB Jun 14, 06:00 UTCJun 14, 06:40 UTC40m
2026-06-13 SXS6ZH ADB → AYT Jun 13, 19:25 UTCJun 13, 19:45 UTC20m
2026-06-13 SXS6NT BHX → ADB Jun 13, 13:30 UTCJun 13, 16:35 UTC3h 5m
2026-06-13 SXS4GQ ADB → BHX Jun 13, 08:05 UTCJun 13, 12:05 UTC4h 0m
2026-06-11 SXS8WK DUS → ADB Jun 11, 14:50 UTCJun 11, 17:35 UTC2h 45m
2026-06-11 SXS21E EDO → DUS Jun 11, 10:10 UTCJun 11, 13:00 UTC2h 50m
2026-06-11 SXS9ZT FRA → BJV Jun 11, 06:05 UTCJun 11, 08:55 UTC2h 50m
2026-06-10 SXS3YD KYA → DUS Jun 10, 13:45 UTCJun 11, 04:20 UTC14h 35m
2026-06-10 SXS6XT - Jun 10, 05:30 UTCJun 10, 11:50 UTC6h 20m
2026-06-10 SXS2FZ AOE → BRU Jun 10, 00:05 UTCJun 10, 03:55 UTC3h 50m
2026-06-09 SXS9MR AYT → ARN Jun 9, 18:50 UTCJun 9, 22:40 UTC3h 50m
2026-06-09 SXS6XR FMO → AYT Jun 9, 00:00 UTCJun 9, 03:10 UTC3h 10m
2026-06-08 SXS6BM AYT → FMO Jun 8, 19:15 UTCJun 8, 22:45 UTC3h 30m
2026-06-08 SXS72X STR → AYT Jun 8, 14:55 UTCJun 8, 17:45 UTC2h 50m
2026-06-08 SXS69M AYT → STR Jun 8, 09:55 UTCJun 8, 13:05 UTC3h 10m
2026-06-08 SXS6TD BRU → ADB Jun 8, 06:10 UTCJun 8, 08:20 UTC2h 10m
2026-06-08 SXS3DQ - Jun 8, 02:15 UTCJun 8, 04:35 UTC2h 20m
2026-06-06 SXS4QP NUE → AYT Jun 6, 23:19 UTCJun 7, 01:55 UTC2h 35m
2026-06-06 SXS3ER DRS → AYT Jun 6, 19:10 UTCJun 6, 22:15 UTC3h 5m
2026-06-06 SXS1ZM STR → AYT Jun 6, 14:54 UTCJun 6, 17:44 UTC2h 50m
2026-06-06 SXS3ZA ADB → SAW Jun 6, 06:00 UTCJun 6, 13:34 UTC7h 35m
2026-06-05 SXS2JB DIY → STR Jun 5, 20:00 UTCJun 6, 04:45 UTC8h 45m
2026-06-05 SXS6RK AYT → STR Jun 5, 15:25 UTCJun 5, 18:30 UTC3h 5m
2026-06-05 SXS6AL LEJ → AYT Jun 5, 10:50 UTCJun 5, 13:40 UTC2h 50m
2026-06-05 SXS8JX AYT → LEJ Jun 5, 06:35 UTCJun 5, 09:35 UTC3h 0m
2026-06-05 SXS3BV CGN → AYT Jun 5, 01:55 UTCJun 5, 05:15 UTC3h 20m
2026-06-04 SXS93K AYT → CGN Jun 4, 21:20 UTCJun 5, 00:50 UTC3h 30m
2026-06-04 SXS2YG - Jun 4, 16:55 UTCJun 4, 20:10 UTC3h 15m
2026-06-04 SXS8JF BJV → DUS Jun 4, 12:00 UTCJun 4, 15:20 UTC3h 20m
2026-06-04 SXS8BF DUS → BJV Jun 4, 06:10 UTCJun 4, 09:05 UTC2h 55m
2026-06-03 SXS3YD KYA → DUS Jun 3, 13:50 UTCJun 4, 04:25 UTC14h 35m
2026-06-03 SXS3TX AYT → DUS Jun 3, 08:30 UTCJun 3, 12:05 UTC3h 35m
2026-06-03 SXS8SA - Jun 3, 06:25 UTCJun 3, 06:45 UTC20m
2026-06-03 SXS9ZB LTN → ADB Jun 3, 04:35 UTCJun 3, 04:55 UTC20m

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

Mode-S 4BCDE2 frequently asked

What is Mode-S code 4BCDE2?
4BCDE2 is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-SOB.
Where is Mode-S 4BCDE2 registered?
Mode-S code 4BCDE2 is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BCDE2 broadcasting right now?
No active broadcast right now. Last signal was 48m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BCDE2, octal 22746742, decimal 4,967,906.
What flights does 4BCDE2 operate?
Mode-S 4BCDE2 has broadcast 20 distinct callsigns, including SXS7EC, SXS75K, SXS3YD, SXS9ZB, SXS8YQ.