Apparatus

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sensors Mode-S transponder

4BCDE4

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-SOD · BOEING 737-800

Hex
4BCDE4
Octal
22746744
Decimal
4,967,908
Country
TR
Tail
TC-SOD
Type
B738
Broadcasting now · callsign SXS3FP · 37,000 ft
Flights observed
183
Distinct callsigns
20
Country
TR
Last broadcast
4h ago

Current position

4BCDE4 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4BCDE4 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
SXS1XU SunExpress 5 2026-05-17
SXS4CN SunExpress 4 2026-05-19
SXS2KY SunExpress 4 2026-05-06
SXS98G SunExpress 3 2026-05-20
SXS78U SunExpress 3 2026-05-08
SXS5EY - 3 2026-04-16
SXS5CX - 3 2026-04-13
SXS4EA - 3 2026-04-13
SXS3FR SunExpress 3 2026-05-07
SXS2GA SunExpress 3 2026-05-17
SXS1CM - 3 2026-04-14
SXS9WA SunExpress 2 2026-04-16
SXS9SC SunExpress 2 2026-05-10
SXS8SA - 2 2026-05-29
SXS8RG - 2 2026-04-14
SXS8KW SunExpress 2 2026-04-24
SXS8KP SunExpress 2 2026-05-26
SXS8ER SunExpress 2 2026-04-30
SXS8CB SunExpress 2 2026-05-18
SXS82K - 2 2026-04-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 SXS3ZX - May 29, 19:00 UTCMay 29, 22:35 UTC3h 35m
2026-05-29 SXS5KE DUS → AYT May 29, 13:45 UTCMay 29, 17:00 UTC3h 16m
2026-05-29 SXS3TX AYT → DUS May 29, 08:35 UTCMay 29, 12:20 UTC3h 45m
2026-05-29 SXS8SA - May 29, 06:45 UTCMay 29, 07:15 UTC30m
2026-05-29 SXS9ZB LTN → ADB May 29, 04:50 UTCMay 29, 05:10 UTC20m
2026-05-29 SXS2FZ AOE → BRU May 29, 02:20 UTCMay 29, 02:50 UTC30m
2026-05-28 SXS9MR AYT → ARN May 28, 18:30 UTCMay 28, 22:35 UTC4h 5m
2026-05-28 SXS6AL LEJ → AYT May 28, 11:25 UTCMay 28, 14:15 UTC2h 50m
2026-05-28 SXS8JX AYT → LEJ May 28, 06:55 UTCMay 28, 10:10 UTC3h 15m
2026-05-28 SXS6DA TLL → AYT May 28, 01:35 UTCMay 28, 02:55 UTC1h 20m
2026-05-27 SXS8SD AYT → TLL May 27, 20:35 UTCMay 28, 00:30 UTC3h 55m
2026-05-27 SXS4ZZ LBA → AYT May 27, 11:25 UTCMay 27, 15:35 UTC4h 10m
2026-05-27 SXS3UC AYT → LBA May 27, 05:40 UTCMay 27, 10:00 UTC4h 20m
2026-05-26 SXS5MQ MAN → AYT May 26, 15:45 UTCMay 26, 19:50 UTC4h 5m
2026-05-26 SXS8KP DIY → HAJ May 26, 09:49 UTCMay 26, 14:09 UTC4h 20m
2026-05-26 SXS651 SOF → AYT May 26, 06:59 UTCMay 26, 08:24 UTC1h 25m
2026-05-26 SXS34J AYT → MXP May 26, 04:00 UTCMay 26, 05:15 UTC1h 15m
2026-05-25 SXS5MQ MAN → AYT May 25, 16:00 UTCMay 25, 20:04 UTC4h 4m
2026-05-25 SXS8KP DIY → HAJ May 25, 10:00 UTCMay 25, 14:20 UTC4h 20m
2026-05-25 SXS6TD BRU → ADB May 25, 06:10 UTCMay 25, 08:20 UTC2h 10m
2026-05-25 SXS3DQ - May 25, 02:00 UTCMay 25, 04:25 UTC2h 25m
2026-05-24 SXS5JR BRE → AYT May 24, 18:40 UTCMay 24, 20:25 UTC1h 45m
2026-05-24 SXS7CC - May 24, 15:35 UTCMay 24, 17:25 UTC1h 50m
2026-05-24 SXS7UJ CGN → AYT May 24, 10:30 UTCMay 24, 13:50 UTC3h 20m
2026-05-24 SXS8UH AYT → ADB May 24, 05:55 UTCMay 24, 09:15 UTC3h 20m
2026-05-23 SXS3FP CGN → AYT May 23, 23:55 UTCMay 24, 03:25 UTC3h 30m
2026-05-23 SXS3ZX - May 23, 19:15 UTCMay 23, 22:35 UTC3h 20m
2026-05-23 SXS7NJ DUB → AYT May 23, 12:05 UTCMay 23, 16:35 UTC4h 30m
2026-05-23 SXS8NU AYT → DUB May 23, 05:50 UTCMay 23, 10:25 UTC4h 35m
2026-05-23 SXS7RL NCL → AYT May 23, 00:20 UTCMay 23, 01:45 UTC1h 25m
2026-05-22 SXS630 AYT → SKP May 22, 21:50 UTCMay 22, 23:00 UTC1h 10m
2026-05-22 SXS4QN BHX → AYT May 22, 16:35 UTCMay 22, 20:30 UTC3h 55m
2026-05-22 SXS3YT HAM → AYT May 22, 10:30 UTCMay 22, 14:50 UTC4h 20m
2026-05-22 SXS46A STR → AYT May 22, 05:50 UTCMay 22, 08:45 UTC2h 55m
2026-05-21 SXS5FV RTM → STR May 21, 18:40 UTCMay 22, 04:25 UTC9h 45m
2026-05-21 SXS2BX AYT → NCL May 21, 05:15 UTCMay 21, 16:45 UTC11h 30m
2026-05-21 SXS8VF PRN → AYT May 21, 00:45 UTCMay 21, 02:05 UTC1h 20m
2026-05-20 SXS5CJ AYT → GZT May 20, 21:50 UTCMay 20, 23:15 UTC1h 25m
2026-05-20 SXS98G DUS → AYT May 20, 17:25 UTCMay 20, 20:35 UTC3h 10m
2026-05-20 SXS5ZE DUS → ONQ May 20, 06:10 UTCMay 20, 15:30 UTC9h 20m
2026-05-20 SXS13X - May 20, 00:55 UTCMay 20, 04:10 UTC3h 15m
2026-05-19 SXS7JR DUS → AYT May 19, 18:25 UTCMay 19, 21:30 UTC3h 5m
2026-05-19 SXS6MF AYT → RTM May 19, 13:40 UTCMay 19, 17:05 UTC3h 25m
2026-05-19 SXS4CN DUS → AYT May 19, 06:00 UTCMay 19, 09:05 UTC3h 5m
2026-05-18 SXS2YL NUE → DLM May 18, 09:05 UTCMay 19, 04:10 UTC19h 4m
2026-05-18 SXS2YL NUE → DLM May 18, 08:55 UTCMay 19, 04:10 UTC19h 14m
2026-05-18 SXS8CB PAD → AYT May 18, 04:15 UTCMay 18, 07:10 UTC2h 55m
2026-05-17 SXS2GA CGN → AYT May 17, 23:05 UTCMay 18, 02:05 UTC3h 0m
2026-05-17 SXS1XU AYT → CGN May 17, 18:01 UTCMay 17, 21:35 UTC3h 35m
2026-05-17 SXS4AC FRA → AYT May 17, 12:30 UTCMay 17, 15:31 UTC3h 0m

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

Mode-S 4BCDE4 frequently asked

What is Mode-S code 4BCDE4?
4BCDE4 is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-SOD.
Where is Mode-S 4BCDE4 registered?
Mode-S code 4BCDE4 is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BCDE4 broadcasting right now?
Yes. Mode-S 4BCDE4 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BCDE4, octal 22746744, decimal 4,967,908.
What flights does 4BCDE4 operate?
Mode-S 4BCDE4 has broadcast 20 distinct callsigns, including SXS1XU, SXS4CN, SXS2KY, SXS98G, SXS78U.