Apparatus

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sensors Mode-S transponder

4BCDB5

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-SMU · BOEING 737-800

Hex
4BCDB5
Octal
22746665
Decimal
4,967,861
Country
TR
Tail
TC-SMU
Type
B738
No current signal · last broadcast Jul 26, 20:55 UTC
Flights observed
474
Distinct callsigns
20
Country
TR
Last broadcast
Jul 26, 20:55 UTC

Last known position

Most recent position reported by Mode-S 4BCDB5.

Country allocation

The ICAO 24-bit address 4BCDB5 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
SXS9DA SunExpress 12 2026-07-26
SXS2XZ SunExpress 12 2026-07-26
SXS7XH - 10 2026-06-26
SXS2TK - 10 2026-06-26
SXS8KM - 9 2026-07-10
SXS7DQ SunExpress 9 2026-07-24
SXS6HK - 9 2026-07-10
SXS2Y - 9 2026-07-16
SXS2NB SunExpress 9 2026-07-24
SXS2BQ - 8 2026-07-19
SXS6VE - 7 2026-07-10
SXS5LG SunExpress 7 2026-07-19
SXS2UM - 7 2026-07-10
SXS2HG - 7 2026-07-17
SXS8VB - 6 2026-07-06
SXS5SV - 6 2026-07-14
SXS4AX - 6 2026-07-06
SXS1XP - 6 2026-07-14
SXS14E SunExpress 6 2026-04-24
SXS9PG - 5 2026-07-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SXS1HF - Jul 26, 17:50 UTCJul 26, 20:55 UTC3h 5m
2026-07-26 SXS9DA CDG → ADB Jul 26, 12:15 UTCJul 26, 15:00 UTC2h 45m
2026-07-26 SXS2XZ ADB → CDG Jul 26, 07:15 UTCJul 26, 10:40 UTC3h 25m
2026-07-26 SXS7XL NUE → ADB Jul 26, 03:35 UTCJul 26, 05:35 UTC2h 0m
2026-07-25 SXS7LC ADB → NUE Jul 25, 23:40 UTCJul 26, 02:20 UTC2h 40m
2026-07-25 SXS5VF DUB → ADB Jul 25, 18:15 UTCJul 25, 21:55 UTC3h 40m
2026-07-25 SXS7BY TLL → AYT Jul 25, 12:25 UTCJul 25, 16:35 UTC4h 10m
2026-07-25 SXS4UM BRE → ADB Jul 25, 08:25 UTCJul 25, 10:55 UTC2h 30m
2026-07-25 SXS7DU ADB → BRE Jul 25, 03:55 UTCJul 25, 06:55 UTC3h 0m
2026-07-24 SXS2NB LBA → AYT Jul 24, 23:20 UTCJul 25, 01:40 UTC2h 20m
2026-07-24 SXS7DQ ADB → CGN Jul 24, 19:00 UTCJul 24, 22:05 UTC3h 5m
2026-07-24 SXS6AN - Jul 24, 13:40 UTCJul 24, 15:55 UTC2h 15m
2026-07-24 SXS2QF ADB → GVA Jul 24, 09:20 UTCJul 24, 12:15 UTC2h 55m
2026-07-24 SXS7DD DIY → ADB Jul 24, 03:10 UTCJul 24, 07:30 UTC4h 20m
2026-07-23 SXS8QA OSL → ADB Jul 23, 22:20 UTCJul 24, 01:30 UTC3h 10m
2026-07-23 SXS3CQ AYT → FRA Jul 23, 17:15 UTCJul 23, 21:05 UTC3h 50m
2026-07-23 SXS9DA CDG → ADB Jul 23, 12:50 UTCJul 23, 15:30 UTC2h 40m
2026-07-23 SXS2XZ ADB → CDG Jul 23, 07:15 UTCJul 23, 10:45 UTC3h 30m
2026-07-22 SXS4TD - Jul 22, 18:40 UTCJul 22, 21:40 UTC3h 0m
2026-07-22 SXS1LN - Jul 22, 13:55 UTCJul 22, 16:25 UTC2h 30m
2026-07-22 SXS7AK - Jul 22, 11:10 UTCJul 22, 12:00 UTC50m
2026-07-22 SXS6SB ADB → STR Jul 22, 04:00 UTCJul 22, 04:45 UTC45m
2026-07-21 SXS7QG - Jul 21, 19:00 UTCJul 21, 21:40 UTC2h 40m
2026-07-21 SXS7DP - Jul 21, 14:15 UTCJul 21, 17:30 UTC3h 15m
2026-07-21 SXS8PY - Jul 21, 11:50 UTCJul 21, 12:50 UTC1h 0m
2026-07-21 SXS5HB ADB → LTN Jul 21, 09:15 UTCJul 21, 10:15 UTC1h 0m
2026-07-21 SXS73E - Jul 21, 05:25 UTCJul 21, 07:25 UTC2h 0m
2026-07-21 SXS4YR ADB → MUC Jul 21, 01:30 UTCJul 21, 04:05 UTC2h 35m
2026-07-20 SXS4GX - Jul 20, 20:10 UTCJul 20, 21:35 UTC1h 25m
2026-07-20 SXS8ZG - Jul 20, 17:20 UTCJul 20, 18:40 UTC1h 20m
2026-07-20 SXS9SE BER → ADB Jul 20, 13:15 UTCJul 20, 15:45 UTC2h 30m
2026-07-20 SXS5UY - Jul 20, 09:05 UTCJul 20, 11:50 UTC2h 45m
2026-07-20 SXS2NA ASR → BER Jul 20, 02:50 UTCJul 20, 07:15 UTC4h 25m
2026-07-19 SXS2BQ - Jul 19, 22:10 UTCJul 20, 01:15 UTC3h 5m
2026-07-19 SXS5LG ADB → STN Jul 19, 16:40 UTCJul 19, 20:20 UTC3h 40m
2026-07-19 SXS9DA - Jul 19, 12:25 UTCJul 19, 15:00 UTC2h 35m
2026-07-19 SXS2XZ ADB → CDG Jul 19, 07:25 UTCJul 19, 10:50 UTC3h 25m
2026-07-19 SXS7XL NUE → ADB Jul 19, 03:30 UTCJul 19, 05:40 UTC2h 10m
2026-07-18 SXS7LC ADB → NUE Jul 18, 23:45 UTCJul 19, 02:20 UTC2h 35m
2026-07-18 SXS5VF DUB → ADB Jul 18, 18:10 UTCJul 18, 21:35 UTC3h 25m
2026-07-18 SXS7BY - Jul 18, 12:20 UTCJul 18, 16:35 UTC4h 15m
2026-07-18 SXS8FR DUS → ADB Jul 18, 08:05 UTCJul 18, 10:35 UTC2h 30m
2026-07-18 SXS16Y ADB → DUS Jul 18, 03:40 UTCJul 18, 06:40 UTC3h 0m
2026-07-17 SXS2NB - Jul 17, 23:30 UTCJul 18, 01:54 UTC2h 25m
2026-07-17 SXS7DQ - Jul 17, 18:34 UTCJul 17, 21:55 UTC3h 20m
2026-07-17 SXS7WX - Jul 17, 14:20 UTCJul 17, 16:29 UTC2h 10m
2026-07-17 SXS3WY - Jul 17, 09:45 UTCJul 17, 12:50 UTC3h 5m
2026-07-17 SXS2HG - Jul 17, 04:04 UTCJul 17, 07:35 UTC3h 30m
2026-07-16 SXS8HR - Jul 16, 16:40 UTCJul 16, 19:25 UTC2h 45m
2026-07-16 SXS1EW - Jul 16, 11:30 UTCJul 16, 14:50 UTC3h 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-SMU page for operator, model, and routing details .

Mode-S 4BCDB5 frequently asked

What is Mode-S code 4BCDB5?
4BCDB5 is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-SMU.
Where is Mode-S 4BCDB5 registered?
Mode-S code 4BCDB5 is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BCDB5 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:55 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BCDB5, octal 22746665, decimal 4,967,861.
What flights does 4BCDB5 operate?
Mode-S 4BCDB5 has broadcast 20 distinct callsigns, including SXS9DA, SXS2XZ, SXS7XH, SXS2TK, SXS8KM.