sensors Mode-S transponder

4BCDA4

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-SMD · BOEING 737 MAX 8

Hex
4BCDA4
Octal
22746644
Decimal
4,967,844
Country
TR
Tail
TC-SMD
Type
B38M
Broadcasting now · callsign SXS6KN · 31,875 ft
Flights observed
413
Distinct callsigns
20
Country
TR
Last broadcast
1h ago

Current position

4BCDA4 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4BCDA4 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
SXS6DN - 9 2026-07-09
SXS5DL - 9 2026-07-13
SXS1BQ - 9 2026-07-14
SXS6MX - 8 2026-07-09
SXS5EY SunExpress 7 2026-05-29
SXS9UL - 6 2026-07-07
SXS58U - 6 2026-07-07
SXS51C - 6 2026-06-12
SXS4WY SunExpress 6 2026-04-18
SXS2HQ SunExpress 6 2026-06-12
SXS11A SunExpress 6 2026-05-29
SXS7TL - 5 2026-06-29
SXS5WD - 5 2026-07-13
SXS2BB SunExpress 5 2026-06-09
SXS9WA - 4 2026-07-02
SXS9LQ - 4 2026-07-06
SXS93H - 4 2026-06-22
SXS8HN - 4 2026-07-06
SXS7XF SunExpress 4 2026-07-14
SXS7GA - 4 2026-06-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-15 SXS5XN - Jul 15, 01:50 UTCJul 15, 05:00 UTC3h 10m
2026-07-14 SXS6TK - Jul 14, 20:25 UTCJul 14, 23:45 UTC3h 19m
2026-07-14 SXS7XF DLM → LGW Jul 14, 14:50 UTCJul 14, 18:45 UTC3h 55m
2026-07-14 SXS1BQ - Jul 14, 00:20 UTCJul 14, 03:55 UTC3h 35m
2026-07-13 SXS5DL - Jul 13, 18:35 UTCJul 13, 22:50 UTC4h 15m
2026-07-13 SXS5WD - Jul 13, 12:35 UTCJul 13, 16:10 UTC3h 35m
2026-07-13 SXS4PL - Jul 13, 06:45 UTCJul 13, 11:00 UTC4h 15m
2026-07-13 SXS1BQ - Jul 13, 00:01 UTCJul 13, 03:40 UTC3h 40m
2026-07-12 SXS5DL - Jul 12, 18:20 UTCJul 12, 22:30 UTC4h 10m
2026-07-12 SXS4XY NCL → DLM Jul 12, 11:30 UTCJul 12, 15:15 UTC3h 45m
2026-07-12 SXS3EW - Jul 12, 05:40 UTCJul 12, 09:50 UTC4h 10m
2026-07-12 SXS1BQ - Jul 12, 00:20 UTCJul 12, 03:55 UTC3h 35m
2026-07-11 SXS5DL - Jul 11, 18:35 UTCJul 11, 22:35 UTC4h 0m
2026-07-11 SXS9AE - Jul 11, 09:10 UTCJul 11, 11:25 UTC2h 15m
2026-07-11 SXS2KC - Jul 11, 05:10 UTCJul 11, 07:55 UTC2h 45m
2026-07-11 SXS1BQ - Jul 11, 00:05 UTCJul 11, 03:45 UTC3h 40m
2026-07-10 SXS5DL - Jul 10, 18:40 UTCJul 10, 22:45 UTC4h 5m
2026-07-10 SXS5WD - Jul 10, 13:05 UTCJul 10, 16:35 UTC3h 30m
2026-07-10 SXS4PL - Jul 10, 06:55 UTCJul 10, 11:20 UTC4h 25m
2026-07-09 SXS1BQ - Jul 9, 23:55 UTCJul 10, 03:25 UTC3h 30m
2026-07-09 SXS5DL - Jul 9, 18:25 UTCJul 9, 22:35 UTC4h 10m
2026-07-09 SXS6DN - Jul 9, 13:00 UTCJul 9, 16:25 UTC3h 25m
2026-07-09 SXS6MX - Jul 9, 07:05 UTCJul 9, 11:05 UTC4h 0m
2026-07-08 SXS5WD - Jul 8, 17:50 UTCJul 8, 21:30 UTC3h 40m
2026-07-08 SXS7LK - Jul 8, 11:50 UTCJul 8, 16:25 UTC4h 35m
2026-07-08 SXS8LW - Jul 8, 06:00 UTCJul 8, 08:40 UTC2h 40m
2026-07-08 SXS4SB - Jul 8, 01:25 UTCJul 8, 04:35 UTC3h 10m
2026-07-07 SXS98G - Jul 7, 17:40 UTCJul 7, 20:40 UTC3h 0m
2026-07-07 SXS7QF - Jul 7, 12:30 UTCJul 7, 16:15 UTC3h 45m
2026-07-07 SXS9UL - Jul 7, 08:00 UTCJul 7, 10:55 UTC2h 55m
2026-07-07 SXS58U - Jul 7, 03:25 UTCJul 7, 06:45 UTC3h 20m
2026-07-06 SXS5NH - Jul 6, 18:10 UTCJul 6, 21:15 UTC3h 5m
2026-07-06 SXS6PC - Jul 6, 13:25 UTCJul 6, 17:00 UTC3h 35m
2026-07-06 SXS8HN - Jul 6, 08:50 UTCJul 6, 11:55 UTC3h 5m
2026-07-06 SXS9LQ - Jul 6, 04:10 UTCJul 6, 07:40 UTC3h 30m
2026-07-05 SXS8LA HAM → AYT Jul 5, 19:00 UTCJul 5, 22:00 UTC3h 0m
2026-07-05 SXS8NM AYT → HAM Jul 5, 14:25 UTCJul 5, 17:55 UTC3h 30m
2026-07-05 SXS7CG - Jul 5, 08:35 UTCJul 5, 11:10 UTC2h 35m
2026-07-05 SXS8CB - Jul 5, 04:20 UTCJul 5, 07:20 UTC3h 0m
2026-07-05 SXS303 - Jul 5, 02:05 UTCJul 5, 02:30 UTC25m
2026-07-05 SXS303 - Jul 5, 00:25 UTCJul 5, 01:30 UTC1h 5m
2026-07-04 SXS6DQ AYT → TBS Jul 4, 21:25 UTCJul 4, 23:10 UTC1h 45m
2026-07-04 SXS4QN - Jul 4, 16:25 UTCJul 4, 20:10 UTC3h 45m
2026-07-04 SXS3YT - Jul 4, 10:25 UTCJul 4, 15:10 UTC4h 45m
2026-07-04 SXS3FR - Jul 4, 06:05 UTCJul 4, 08:45 UTC2h 40m
2026-07-04 SXS7SC - Jul 4, 02:00 UTCJul 4, 04:45 UTC2h 45m
2026-07-03 SXS8NX - Jul 3, 21:05 UTCJul 3, 23:45 UTC2h 40m
2026-07-03 SXS6XP AYT → BER Jul 3, 15:10 UTCJul 3, 18:20 UTC3h 10m
2026-07-03 SXS1CM - Jul 3, 11:00 UTCJul 3, 13:55 UTC2h 55m
2026-07-03 SXS8RG - Jul 3, 06:20 UTCJul 3, 09:30 UTC3h 10m

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

Mode-S 4BCDA4 frequently asked

What is Mode-S code 4BCDA4?
4BCDA4 is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-SMD.
Where is Mode-S 4BCDA4 registered?
Mode-S code 4BCDA4 is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BCDA4 broadcasting right now?
Yes. Mode-S 4BCDA4 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BCDA4, octal 22746644, decimal 4,967,844.
What flights does 4BCDA4 operate?
Mode-S 4BCDA4 has broadcast 20 distinct callsigns, including SXS6DN, SXS5DL, SXS1BQ, SXS6MX, SXS5EY.