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
No current signal · last broadcast 39m ago
Flights observed
323
Distinct callsigns
20
Country
TR
Last broadcast
39m ago

Last known position

Most recent position reported by Mode-S 4BCDE4.

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 - 6 2026-06-17
SXS1CM SunExpress 5 2026-06-06
SXS8WK - 4 2026-07-13
SXS6XR - 4 2026-06-30
SXS4UV - 4 2026-07-13
SXS4CN SunExpress 4 2026-05-19
SXS2KY SunExpress 4 2026-05-06
SXS2GA - 4 2026-06-17
SXS9WA - 3 2026-06-30
SXS98G SunExpress 3 2026-05-20
SXS8SA - 3 2026-06-30
SXS8RG SunExpress 3 2026-05-30
SXS78U SunExpress 3 2026-05-08
SXS6BM - 3 2026-06-30
SXS5KE SunExpress 3 2026-06-16
SXS5EY - 3 2026-04-16
SXS5CX - 3 2026-04-13
SXS4ZZ SunExpress 3 2026-06-03
SXS4WM - 3 2026-06-29
SXS4QN - 3 2026-07-01

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 SXS3CQ - Jul 13, 23:35 UTCJul 14, 03:00 UTC3h 25m
2026-07-13 SXS8WK - Jul 13, 15:50 UTCJul 13, 18:20 UTC2h 30m
2026-07-13 SXS21E - Jul 13, 10:30 UTCJul 13, 13:40 UTC3h 10m
2026-07-13 SXS9ZT - Jul 13, 06:05 UTCJul 13, 08:50 UTC2h 45m
2026-07-13 SXS4UV - Jul 13, 01:10 UTCJul 13, 04:15 UTC3h 5m
2026-07-12 SXS813 - Jul 12, 15:05 UTCJul 12, 17:25 UTC2h 20m
2026-07-12 SXS812 - Jul 12, 11:05 UTCJul 12, 13:45 UTC2h 40m
2026-07-12 SXS7RR - Jul 12, 07:31 UTCJul 12, 09:45 UTC2h 15m
2026-07-12 SXS5GX - Jul 12, 03:35 UTCJul 12, 06:15 UTC2h 40m
2026-07-11 SXS3RD - Jul 11, 16:45 UTCJul 11, 21:20 UTC4h 35m
2026-07-11 SXS9SE - Jul 11, 12:55 UTCJul 11, 15:15 UTC2h 20m
2026-07-11 SXS5UY - Jul 11, 08:55 UTCJul 11, 11:35 UTC2h 40m
2026-07-11 SXS73E - Jul 11, 05:31 UTCJul 11, 07:40 UTC2h 10m
2026-07-11 SXS4YR - Jul 11, 01:45 UTCJul 11, 04:20 UTC2h 35m
2026-07-10 SXS5UK - Jul 10, 21:25 UTCJul 11, 00:05 UTC2h 40m
2026-07-10 SXS69Z - Jul 10, 16:35 UTCJul 10, 19:50 UTC3h 15m
2026-07-10 SXS5LU - Jul 10, 13:05 UTCJul 10, 15:00 UTC1h 55m
2026-07-10 SXS7BN - Jul 10, 09:10 UTCJul 10, 11:45 UTC2h 35m
2026-07-10 SXS7EL - Jul 10, 05:25 UTCJul 10, 07:05 UTC1h 40m
2026-07-10 SXS6ZT - Jul 10, 03:00 UTCJul 10, 04:25 UTC1h 25m
2026-07-09 SXS8HR - Jul 9, 16:20 UTCJul 9, 19:00 UTC2h 40m
2026-07-09 SXS1EW - Jul 9, 11:35 UTCJul 9, 15:05 UTC3h 30m
2026-07-09 SXS4GX - Jul 9, 05:30 UTCJul 9, 07:05 UTC1h 35m
2026-07-09 SXS8ZG - Jul 9, 02:30 UTCJul 9, 03:50 UTC1h 20m
2026-07-08 SXS2NB - Jul 8, 22:40 UTCJul 9, 01:10 UTC2h 30m
2026-07-08 SXS7DQ - Jul 8, 18:15 UTCJul 8, 21:20 UTC3h 5m
2026-07-08 SXS6AN - Jul 8, 13:40 UTCJul 8, 16:05 UTC2h 25m
2026-07-08 SXS2QF - Jul 8, 09:15 UTCJul 8, 12:20 UTC3h 5m
2026-07-08 SXS5BB - Jul 8, 02:30 UTCJul 8, 07:00 UTC4h 30m
2026-07-07 SXS7WB - Jul 7, 20:00 UTCJul 7, 21:40 UTC1h 40m
2026-07-07 SXS5CK ADB → FCO Jul 7, 16:25 UTCJul 7, 18:35 UTC2h 10m
2026-07-07 SXS8PJ - Jul 7, 05:55 UTCJul 7, 15:00 UTC9h 5m
2026-07-06 SXS2BA FRA → HAJ Jul 6, 18:40 UTCJul 7, 04:20 UTC9h 40m
2026-07-06 SXS4KG - Jul 6, 14:00 UTCJul 6, 16:55 UTC2h 55m
2026-07-06 SXS8FR - Jul 6, 08:25 UTCJul 6, 11:05 UTC2h 40m
2026-07-06 SXS16Y - Jul 6, 03:35 UTCJul 6, 06:40 UTC3h 5m
2026-07-05 SXS23Q - Jul 5, 18:50 UTCJul 5, 21:05 UTC2h 15m
2026-07-05 SXS6AT - Jul 5, 13:35 UTCJul 5, 16:40 UTC3h 5m
2026-07-04 SXS6LV CGN → FRA Jul 4, 20:35 UTCJul 5, 04:40 UTC8h 5m
2026-07-04 SXS4UE - Jul 4, 10:25 UTCJul 4, 19:00 UTC8h 35m
2026-07-03 SXS2YL MUC → DUS Jul 3, 19:35 UTCJul 4, 09:00 UTC13h 25m
2026-07-03 SXS1323 - Jul 3, 09:30 UTCJul 3, 17:55 UTC8h 25m
2026-07-02 SXS1322 STR → AMS Jul 2, 20:30 UTCJul 3, 07:20 UTC10h 50m
2026-07-02 SXS6RK - Jul 2, 15:40 UTCJul 2, 18:40 UTC3h 0m
2026-07-02 SXS5BV BRE → AYT Jul 2, 09:10 UTCJul 2, 12:30 UTC3h 20m
2026-07-02 SXS4QE - Jul 2, 04:20 UTCJul 2, 07:40 UTC3h 20m
2026-07-02 SXS8VF PRN → AYT Jul 2, 01:05 UTCJul 2, 02:35 UTC1h 30m
2026-07-01 SXS5CJ AYT → GZT Jul 1, 22:25 UTCJul 1, 23:50 UTC1h 25m
2026-07-01 SXS4QN - Jul 1, 17:00 UTCJul 1, 20:55 UTC3h 55m
2026-07-01 SXS3YT AYT → BHX Jul 1, 10:25 UTCJul 1, 14:45 UTC4h 20m

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?
No active broadcast right now. Last signal was 39m ago.
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, SXS1CM, SXS8WK, SXS6XR, SXS4UV.