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 16d ago
Flights observed
247
Distinct callsigns
20
Country
TR
Last broadcast
16d 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
SXS74P - 3 2026-07-19
SXS4QN - 3 2026-07-15
SXS4KP SunExpress 3 2026-07-26
SXS3YT - 3 2026-07-15
SXS3YD SunExpress 3 2026-06-10
SXS9ZB SunExpress 2 2026-06-03
SXS8ZW SunExpress 2 2026-07-26
SXS8ZN - 2 2026-07-07
SXS8YQ - 2 2026-06-27
SXS8WK SunExpress 2 2026-06-11
SXS8WJ SunExpress 2 2026-07-22
SXS8SA - 2 2026-06-03
SXS8NM - 2 2026-07-17
SXS8MP SunExpress 2 2026-07-05
SXS8LW - 2 2026-07-18
SXS8LA - 2 2026-07-17
SXS8JX SunExpress 2 2026-07-20
SXS8GR - 2 2026-07-07

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SXS8ZG - Jul 26, 17:00 UTCJul 26, 21:50 UTC4h 50m
2026-07-26 SXS8BU ASR → DUS Jul 26, 13:05 UTCJul 26, 15:25 UTC2h 20m
2026-07-26 SXS4HL ADB → STR Jul 26, 09:15 UTCJul 26, 11:55 UTC2h 40m
2026-07-26 SXS8ZW AYT → ADB Jul 26, 06:10 UTCJul 26, 06:45 UTC36m
2026-07-26 SXS4KP ADB → AYT Jul 26, 04:10 UTCJul 26, 04:50 UTC40m
2026-07-25 SXS010 HAM → AYT Jul 25, 21:20 UTCJul 25, 21:35 UTC15m
2026-07-25 SXS010 HAM → AYT Jul 25, 13:35 UTCJul 25, 16:20 UTC2h 45m
2026-07-23 SXS1FG AYT → ERF Jul 23, 20:00 UTCJul 23, 23:10 UTC3h 10m
2026-07-23 SXS7HT LEJ → AYT Jul 23, 15:45 UTCJul 23, 18:30 UTC2h 45m
2026-07-23 SXS9EP AYT → LEJ Jul 23, 11:25 UTCJul 23, 14:30 UTC3h 5m
2026-07-23 SXS3EL VAN → AYT Jul 23, 05:45 UTCJul 23, 10:00 UTC4h 15m
2026-07-23 SXS2ZN NUE → AYT Jul 23, 01:20 UTCJul 23, 04:10 UTC2h 50m
2026-07-22 SXS3DZ AYT → NUE Jul 22, 21:15 UTCJul 23, 00:20 UTC3h 5m
2026-07-22 SXS8CZ - Jul 22, 17:30 UTCJul 22, 19:40 UTC2h 10m
2026-07-22 SXS8WJ AYT → VIE Jul 22, 13:55 UTCJul 22, 16:20 UTC2h 25m
2026-07-22 SXS5BV ADB → AYT Jul 22, 04:45 UTCJul 22, 12:35 UTC7h 50m
2026-07-21 SXS4EA NCL → AYT Jul 21, 18:20 UTCJul 21, 22:20 UTC4h 0m
2026-07-21 SXS5CX AYT → NCL Jul 21, 12:35 UTCJul 21, 17:05 UTC4h 30m
2026-07-21 SXS93U DTM → AYT Jul 21, 08:05 UTCJul 21, 11:15 UTC3h 10m
2026-07-21 SXS81H AYT → DTM Jul 21, 03:10 UTCJul 21, 06:30 UTC3h 20m
2026-07-20 SXS5HU BER → AYT Jul 20, 19:55 UTCJul 20, 22:45 UTC2h 50m
2026-07-20 SXS6XP - Jul 20, 15:30 UTCJul 20, 18:35 UTC3h 5m
2026-07-20 SXS6AL LEJ → AYT Jul 20, 10:55 UTCJul 20, 13:45 UTC2h 50m
2026-07-20 SXS8JX AYT → LEJ Jul 20, 06:50 UTCJul 20, 09:55 UTC3h 5m
2026-07-20 SXS84K HAJ → AYT Jul 20, 02:00 UTCJul 20, 05:10 UTC3h 10m
2026-07-19 SXS3XA - Jul 19, 21:25 UTCJul 20, 00:45 UTC3h 20m
2026-07-19 SXS74P BSL → AYT Jul 19, 17:30 UTCJul 19, 20:15 UTC2h 45m
2026-07-19 SXS74P BSL → BSL Jul 19, 17:15 UTCJul 19, 17:20 UTC5m
2026-07-19 SXS6RU - Jul 19, 12:55 UTCJul 19, 16:10 UTC3h 15m
2026-07-19 SXS9YM DUS → AYT Jul 19, 08:20 UTCJul 19, 11:30 UTC3h 10m
2026-07-19 SXS7HX AYT → DUS Jul 19, 03:15 UTCJul 19, 06:45 UTC3h 30m
2026-07-18 SXS4ZH VIE → AYT Jul 18, 23:30 UTCJul 19, 01:40 UTC2h 10m
2026-07-18 SXS94B AYT → VIE Jul 18, 19:50 UTCJul 18, 22:15 UTC2h 25m
2026-07-18 SXS6ZG DUS → AYT Jul 18, 15:00 UTCJul 18, 18:10 UTC3h 10m
2026-07-18 SXS12V DUS → AYT Jul 18, 10:05 UTCJul 18, 13:40 UTC3h 35m
2026-07-18 SXS8LW - Jul 18, 06:00 UTCJul 18, 08:45 UTC2h 45m
2026-07-18 SXS4SB - Jul 18, 01:10 UTCJul 18, 04:20 UTC3h 11m
2026-07-17 SXS8LA HAM → AYT Jul 17, 18:55 UTCJul 17, 22:05 UTC3h 10m
2026-07-17 SXS8NM - Jul 17, 14:15 UTCJul 17, 17:35 UTC3h 20m
2026-07-17 SXS5BV - Jul 17, 09:40 UTCJul 17, 13:00 UTC3h 20m
2026-07-17 SXS4QE AYT → BRE Jul 17, 04:39 UTCJul 17, 08:04 UTC3h 25m
2026-07-16 SXS6ED FRA → AYT Jul 16, 13:30 UTCJul 16, 16:19 UTC2h 50m
2026-07-16 SXS3JC - Jul 16, 07:55 UTCJul 16, 11:20 UTC3h 25m
2026-07-16 SXS2RJ HAJ → AYT Jul 16, 03:05 UTCJul 16, 06:00 UTC2h 55m
2026-07-15 SXS2PC - Jul 15, 22:35 UTCJul 16, 02:00 UTC3h 25m
2026-07-15 SXS4QN BHX → AYT Jul 15, 16:55 UTCJul 15, 20:40 UTC3h 45m
2026-07-15 SXS3YT - Jul 15, 10:30 UTCJul 15, 15:00 UTC4h 30m
2026-07-15 SXS5YG - Jul 15, 07:15 UTCJul 15, 09:05 UTC1h 50m
2026-07-15 SXS5MY - Jul 15, 04:55 UTCJul 15, 06:15 UTC1h 20m
2026-07-15 SXS303 TBS → AYT Jul 15, 00:35 UTCJul 15, 02:50 UTC2h 15m

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 16d 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, SXS74P, SXS4QN, SXS4KP.