Apparatus

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sensors Mode-S transponder

4BCE45

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-SRE · BOEING 737-800

Hex
4BCE45
Octal
22747105
Decimal
4,968,005
Country
TR
Tail
TC-SRE
Type
B738
No current signal · last broadcast Jul 26, 21:15 UTC
Flights observed
346
Distinct callsigns
20
Country
TR
Last broadcast
Jul 26, 21:15 UTC

Last known position

Most recent position reported by Mode-S 4BCE45.

Country allocation

The ICAO 24-bit address 4BCE45 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
SXS8VB - 5 2026-07-20
SXS7RR SunExpress 5 2026-06-12
SXS6BQ - 5 2026-07-16
SXS5KU - 5 2026-05-30
SXS5GX SunExpress 5 2026-06-12
SXS4AX - 5 2026-07-20
SXS6ZL SunExpress 4 2026-06-11
SXS69Z - 4 2026-07-12
SXS5UK - 4 2026-07-12
SXS4AW - 4 2026-05-30
SXS2VY SunExpress 4 2026-06-01
SXS1445 SunExpress 4 2026-07-23
SXS1444 SunExpress 4 2026-07-23
SXS9QA SunExpress 3 2026-07-18
SXS921 - 3 2026-06-01
SXS8KM - 3 2026-07-19
SXS8DG - 3 2026-07-16
SXS7WX - 3 2026-07-18
SXS7GB - 3 2026-04-13
SXS7BN - 3 2026-07-04

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SXS5HU BER → AYT Jul 26, 19:55 UTCJul 26, 21:15 UTC1h 20m
2026-07-26 SXS6XP AYT → BER Jul 26, 15:15 UTCJul 26, 18:30 UTC3h 15m
2026-07-26 SXS6HX MUC → GZT Jul 26, 07:25 UTCJul 26, 13:30 UTC6h 5m
2026-07-25 SXS9KN FRA → GZT Jul 25, 19:30 UTCJul 26, 05:30 UTC10h 0m
2026-07-25 SXS4KG ADB → FRA Jul 25, 14:45 UTCJul 25, 17:35 UTC2h 50m
2026-07-25 SXS9085 - Jul 25, 08:15 UTCJul 25, 13:15 UTC5h 0m
2026-07-25 SXS2HG GZT → ADB Jul 25, 05:45 UTCJul 25, 06:50 UTC1h 5m
2026-07-25 SXS2Y STR → GZT Jul 25, 03:15 UTCJul 25, 04:10 UTC55m
2026-07-24 SXS5XQ STN → ADB Jul 24, 19:50 UTCJul 24, 22:50 UTC3h 0m
2026-07-24 SXS2JG ADB → EDI Jul 24, 14:40 UTCJul 24, 18:20 UTC3h 40m
2026-07-24 SXS2JC ASR → ADB Jul 24, 03:20 UTCJul 24, 07:05 UTC3h 45m
2026-07-23 SXS9ZG - Jul 23, 19:55 UTCJul 23, 21:55 UTC2h 0m
2026-07-23 SXS9VD ADB → PRG Jul 23, 16:15 UTCJul 23, 18:30 UTC2h 15m
2026-07-23 SXS9T KYA → ADB Jul 23, 14:05 UTCJul 23, 14:40 UTC35m
2026-07-23 SXS1445 AMS → KYA Jul 23, 09:15 UTCJul 23, 12:15 UTC3h 0m
2026-07-23 SXS1444 KYA → AMS Jul 23, 03:35 UTCJul 23, 07:10 UTC3h 35m
2026-07-22 SXS6ZE ARN → KYA Jul 22, 21:45 UTCJul 23, 01:00 UTC3h 15m
2026-07-22 SXS9XF KYA → ARN Jul 22, 17:00 UTCJul 22, 20:30 UTC3h 30m
2026-07-22 SXS8FV STR → KYA Jul 22, 12:20 UTCJul 22, 14:50 UTC2h 30m
2026-07-22 SXS68D CPH → KYA Jul 22, 02:45 UTCJul 22, 11:30 UTC8h 45m
2026-07-21 SXS4MJ KYA → CPH Jul 21, 22:15 UTCJul 22, 01:30 UTC3h 15m
2026-07-21 SXS1445 - Jul 21, 17:10 UTCJul 21, 20:10 UTC3h 0m
2026-07-21 SXS1444 - Jul 21, 12:00 UTCJul 21, 15:35 UTC3h 35m
2026-07-21 SXS7M - Jul 21, 09:10 UTCJul 21, 09:45 UTC35m
2026-07-21 SXS2NA ASR → BER Jul 21, 02:55 UTCJul 21, 07:25 UTC4h 30m
2026-07-20 SXS5FR DUS → SZF Jul 20, 22:45 UTCJul 21, 01:20 UTC2h 34m
2026-07-20 SXS5GG - Jul 20, 18:35 UTCJul 20, 21:30 UTC2h 55m
2026-07-20 SXS8VB - Jul 20, 13:40 UTCJul 20, 16:20 UTC2h 40m
2026-07-20 SXS4AX - Jul 20, 08:55 UTCJul 20, 11:55 UTC3h 0m
2026-07-19 SXS5PV MQM → ADB Jul 19, 18:05 UTCJul 19, 22:10 UTC4h 5m
2026-07-19 SXS4Y - Jul 19, 15:05 UTCJul 19, 16:00 UTC55m
2026-07-19 SXS6A - Jul 19, 12:45 UTCJul 19, 13:40 UTC55m
2026-07-19 SXS8KM - Jul 19, 08:50 UTCJul 19, 11:05 UTC2h 15m
2026-07-19 SXS6HK ADB → FRA Jul 19, 04:30 UTCJul 19, 07:15 UTC2h 45m
2026-07-19 SXS999 CGN → ADB Jul 19, 00:10 UTCJul 19, 02:35 UTC2h 25m
2026-07-18 SXS998 ADB → CGN Jul 18, 19:45 UTCJul 18, 22:50 UTC3h 5m
2026-07-18 SXS7WX - Jul 18, 15:55 UTCJul 18, 18:15 UTC2h 20m
2026-07-18 SXS3WY - Jul 18, 11:05 UTCJul 18, 14:05 UTC3h 0m
2026-07-18 SXS2QM BUD → ADB Jul 18, 06:30 UTCJul 18, 08:00 UTC1h 30m
2026-07-18 SXS9QA ADB → BUD Jul 18, 03:20 UTCJul 18, 05:05 UTC1h 45m
2026-07-17 SXS5XQ - Jul 17, 20:00 UTCJul 17, 23:00 UTC3h 0m
2026-07-17 SXS2JG - Jul 17, 16:59 UTCJul 17, 18:25 UTC1h 25m
2026-07-17 SXS2JG - Jul 17, 14:35 UTCJul 17, 16:55 UTC2h 20m
2026-07-17 SXS8KM - Jul 17, 09:25 UTCJul 17, 11:50 UTC2h 25m
2026-07-17 SXS6HK ADB → FRA Jul 17, 04:35 UTCJul 17, 07:25 UTC2h 50m
2026-07-16 SXS6BQ - Jul 16, 09:50 UTCJul 16, 12:49 UTC3h 0m
2026-07-16 SXS87M - Jul 16, 05:30 UTCJul 16, 08:00 UTC2h 30m
2026-07-16 SXS8DG - Jul 16, 01:10 UTCJul 16, 04:05 UTC2h 55m
2026-07-15 SXS4TD - Jul 15, 20:05 UTCJul 15, 20:55 UTC50m
2026-07-15 SXS4XH - Jul 15, 17:55 UTCJul 15, 18:40 UTC45m

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

Mode-S 4BCE45 frequently asked

What is Mode-S code 4BCE45?
4BCE45 is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-SRE.
Where is Mode-S 4BCE45 registered?
Mode-S code 4BCE45 is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BCE45 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BCE45, octal 22747105, decimal 4,968,005.
What flights does 4BCE45 operate?
Mode-S 4BCE45 has broadcast 20 distinct callsigns, including SXS8VB, SXS7RR, SXS6BQ, SXS5KU, SXS5GX.