Apparatus

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sensors Mode-S transponder

4BCE46

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-SRF · BOEING 737-800

Hex
4BCE46
Octal
22747106
Decimal
4,968,006
Country
TR
Tail
TC-SRF
Type
B738
No current signal · last broadcast 2h ago
Flights observed
91
Distinct callsigns
20
Country
TR
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 4BCE46.

Country allocation

The ICAO 24-bit address 4BCE46 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
SXS8JE SunExpress 3 2026-05-30
SXS5ET SunExpress 3 2026-05-30
SXS4BD SunExpress 3 2026-05-31
SXS5YP SunExpress 2 2026-05-25
SXS5NG - 2 2026-05-28
SXS4UA SunExpress 2 2026-05-26
SXS4QN SunExpress 2 2026-05-27
SXS3YT SunExpress 2 2026-05-27
SXS3KG SunExpress 2 2026-05-29
SXS2LL SunExpress 2 2026-05-28
SXS9ZB SunExpress 1 2026-04-28
SXS9XP SunExpress 1 2026-05-08
SXS9SR - 1 2026-05-22
SXS9PL SunExpress 1 2026-05-16
SXS9NH SunExpress 1 2026-05-08
SXS9CB - 1 2026-05-02
SXS8ZN SunExpress 1 2026-05-16
SXS8UH SunExpress 1 2026-05-03
SXS8SA - 1 2026-04-28
SXS8PJ SunExpress 1 2026-05-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-31 SXS4BD AYT → NUE May 31, 00:30 UTCMay 31, 00:45 UTC15m
2026-05-30 SXS4BD AYT → NUE May 30, 21:20 UTCMay 31, 00:25 UTC3h 5m
2026-05-30 SXS8JE BER → BJV May 30, 17:05 UTCMay 30, 20:05 UTC3h 0m
2026-05-30 SXS5ET AYT → ZRH May 30, 12:30 UTCMay 30, 15:55 UTC3h 25m
2026-05-30 SXS5ZP ZRH → AYT May 30, 08:20 UTCMay 30, 11:10 UTC2h 50m
2026-05-30 SXS2MD AYT → ZRH May 30, 03:40 UTCMay 30, 07:05 UTC3h 25m
2026-05-29 SXS8LA HAM → AYT May 29, 20:00 UTCMay 29, 23:10 UTC3h 10m
2026-05-29 SXS8NM AYT → HAM May 29, 14:10 UTCMay 29, 17:50 UTC3h 40m
2026-05-29 SXS3KG ASR → AYT May 29, 05:15 UTCMay 29, 08:00 UTC2h 45m
2026-05-28 SXS2LL STR → AYT May 28, 18:50 UTCMay 28, 21:35 UTC2h 45m
2026-05-28 SXS5NG - May 28, 14:25 UTCMay 28, 17:40 UTC3h 15m
2026-05-27 SXS4QN BHX → AYT May 27, 17:10 UTCMay 27, 21:10 UTC4h 0m
2026-05-27 SXS3YT HAM → AYT May 27, 11:15 UTCMay 27, 15:35 UTC4h 20m
2026-05-27 SXS3UU ECN → AYT May 27, 07:50 UTCMay 27, 08:30 UTC40m
2026-05-27 SXS3KB BRU → ESB May 27, 05:49 UTCMay 27, 06:25 UTC35m
2026-05-27 SXS6CH HAJ → AYT May 27, 01:24 UTCMay 27, 04:14 UTC2h 50m
2026-05-26 SXS4BD AYT → NUE May 26, 20:50 UTCMay 26, 23:39 UTC2h 50m
2026-05-26 SXS3AH AYT → GZT May 26, 16:20 UTCMay 26, 19:05 UTC2h 45m
2026-05-26 SXS4UA STN → AYT May 26, 09:09 UTCMay 26, 13:00 UTC3h 50m
2026-05-25 SXS5YP AYT → FRA May 25, 13:20 UTCMay 25, 17:10 UTC3h 50m
2026-05-25 SXS84K HAJ → AYT May 25, 02:10 UTCMay 25, 05:20 UTC3h 10m
2026-05-24 SXS3XA - May 24, 23:00 UTCMay 24, 23:46 UTC46m
2026-05-24 SXS5KE DUS → AYT May 24, 13:20 UTCMay 24, 16:40 UTC3h 20m
2026-05-24 SXS3TX AYT → DUS May 24, 08:25 UTCMay 24, 11:55 UTC3h 30m
2026-05-23 SXS2LL STR → AYT May 23, 19:25 UTCMay 23, 22:20 UTC2h 55m
2026-05-23 SXS5NG - May 23, 14:40 UTCMay 23, 17:45 UTC3h 5m
2026-05-23 SXS4UA STN → AYT May 23, 09:15 UTCMay 23, 13:10 UTC3h 55m
2026-05-22 SXS7ZD - May 22, 18:55 UTCMay 23, 07:45 UTC12h 49m
2026-05-22 SXS5YP AYT → FRA May 22, 13:20 UTCMay 22, 17:30 UTC4h 10m
2026-05-22 SXS4GL LEJ → AYT May 22, 08:05 UTCMay 22, 11:00 UTC2h 55m
2026-05-22 SXS9SR - May 22, 03:50 UTCMay 22, 06:50 UTC3h 0m
2026-05-21 SXS6XD CGN → AYT May 21, 22:30 UTCMay 22, 01:45 UTC3h 15m
2026-05-21 SXS4RX AYT → CGN May 21, 17:35 UTCMay 21, 21:05 UTC3h 30m
2026-05-21 SXS1ZN HAM → AYT May 21, 11:50 UTCMay 21, 15:00 UTC3h 10m
2026-05-21 SXS6EG AYT → HAM May 21, 07:20 UTCMay 21, 10:40 UTC3h 20m
2026-05-20 SXS5YG - May 20, 07:05 UTCMay 20, 08:40 UTC1h 35m
2026-05-20 SXS5MY DUS → AYT May 20, 04:55 UTCMay 20, 06:15 UTC1h 20m
2026-05-19 SXS8JE BER → BJV May 19, 16:50 UTCMay 19, 19:40 UTC2h 50m
2026-05-19 SXS5ET AYT → ZRH May 19, 12:20 UTCMay 19, 15:30 UTC3h 10m
2026-05-18 SXS3FR BER → AYT May 18, 07:10 UTCMay 18, 10:00 UTC2h 50m
2026-05-17 SXS2KY AYT → BER May 17, 15:25 UTCMay 17, 18:30 UTC3h 5m
2026-05-17 SXS6AL LEJ → AYT May 17, 11:01 UTCMay 17, 13:55 UTC2h 55m
2026-05-17 SXS8JX AYT → LEJ May 17, 06:45 UTCMay 17, 09:50 UTC3h 5m
2026-05-16 SXS9PL HAM → AYT May 16, 17:05 UTCMay 16, 20:20 UTC3h 15m
2026-05-16 SXS6SQ AYT → HAM May 16, 12:31 UTCMay 16, 16:00 UTC3h 30m
2026-05-16 SXS8ZN STR → AYT May 16, 06:10 UTCMay 16, 09:21 UTC3h 10m
2026-05-15 SXS2VP DUS → SZF May 15, 19:05 UTCMay 16, 04:40 UTC9h 35m
2026-05-15 SXS8PJ HAJ → DIY May 15, 07:55 UTCMay 15, 17:30 UTC9h 34m
2026-05-14 SXS2HE DUS → DIY May 14, 18:45 UTCMay 15, 05:50 UTC11h 5m
2026-05-14 SXS62Q AYT → DUS May 14, 13:45 UTCMay 14, 17:10 UTC3h 25m

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

Mode-S 4BCE46 frequently asked

What is Mode-S code 4BCE46?
4BCE46 is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-SRF.
Where is Mode-S 4BCE46 registered?
Mode-S code 4BCE46 is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BCE46 broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BCE46, octal 22747106, decimal 4,968,006.
What flights does 4BCE46 operate?
Mode-S 4BCE46 has broadcast 20 distinct callsigns, including SXS8JE, SXS5ET, SXS4BD, SXS5YP, SXS5NG.