Apparatus

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sensors Mode-S transponder

4BCE1A

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-SPZ · BOEING 737-800

Hex
4BCE1A
Octal
22747032
Decimal
4,967,962
Country
TR
Tail
TC-SPZ
Type
B738
Broadcasting now · callsign SXS3XA · 16,550 ft
Flights observed
146
Distinct callsigns
20
Country
TR
Last broadcast
2h ago

Current position

4BCE1A is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4BCE1A 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
SXS4QB - 4 2026-04-17
SXS93H - 3 2026-04-13
SXS8JF SunExpress 3 2026-04-30
SXS6WB - 3 2026-04-17
SXS6RQ SunExpress 3 2026-05-26
SXS4PL - 3 2026-04-13
SXS9AE - 2 2026-04-16
SXS8CB SunExpress 2 2026-05-21
SXS8BF SunExpress 2 2026-04-28
SXS82K SunExpress 2 2026-05-26
SXS7GA - 2 2026-04-18
SXS7CG SunExpress 2 2026-05-21
SXS79Y SunExpress 2 2026-05-24
SXS6XD SunExpress 2 2026-05-08
SXS6MF SunExpress 2 2026-05-25
SXS5WD - 2 2026-04-13
SXS4TM SunExpress 2 2026-05-22
SXS4RX SunExpress 2 2026-05-08
SXS4QN SunExpress 2 2026-05-18
SXS4DQ SunExpress 2 2026-04-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 SXS3XA - May 29, 21:10 UTCMay 29, 22:30 UTC1h 20m
2026-05-29 SXS7QB ECN → AYT May 29, 19:10 UTCMay 29, 19:45 UTC35m
2026-05-29 SXS5YB AYT → ECN May 29, 17:25 UTCMay 29, 18:05 UTC40m
2026-05-29 SXS4EA NCL → AYT May 29, 11:45 UTCMay 29, 15:45 UTC4h 0m
2026-05-29 SXS5CX AYT → NCL May 29, 05:40 UTCMay 29, 10:15 UTC4h 35m
2026-05-29 SXS1PJ CGN → AYT May 29, 01:05 UTCMay 29, 04:05 UTC3h 0m
2026-05-28 SXS9NX - May 28, 20:00 UTCMay 28, 23:35 UTC3h 35m
2026-05-28 SXS5VH - May 28, 16:50 UTCMay 28, 17:55 UTC1h 5m
2026-05-28 SXS8QB AYT → SZF May 28, 14:45 UTCMay 28, 15:05 UTC20m
2026-05-28 SXS4UA STN → AYT May 28, 09:25 UTCMay 28, 13:05 UTC3h 40m
2026-05-27 SXS5YP AYT → FRA May 27, 13:20 UTCMay 27, 17:30 UTC4h 10m
2026-05-27 SXS46A STR → AYT May 27, 05:55 UTCMay 27, 08:45 UTC2h 51m
2026-05-26 SXS6WK STR → STR May 26, 20:15 UTCMay 27, 04:19 UTC8h 5m
2026-05-26 SXS6RK AYT → STR May 26, 15:35 UTCMay 26, 18:40 UTC3h 5m
2026-05-26 SXS82K MUC → AYT May 26, 11:15 UTCMay 26, 14:05 UTC2h 50m
2026-05-26 SXS6RQ NUE → AYT May 26, 07:05 UTCMay 26, 09:55 UTC2h 50m
2026-05-25 SXS7JR DUS → AYT May 25, 18:25 UTCMay 25, 21:45 UTC3h 20m
2026-05-25 SXS6MF AYT → RTM May 25, 13:35 UTCMay 25, 17:05 UTC3h 30m
2026-05-25 SXS9UL BSL → AYT May 25, 08:10 UTCMay 25, 11:20 UTC3h 10m
2026-05-25 SXS58U DUS → OGU May 25, 03:15 UTCMay 25, 06:20 UTC3h 5m
2026-05-24 SXS1ZQ NUE → AYT May 24, 23:00 UTCMay 24, 23:46 UTC46m
2026-05-24 SXS6SF AYT → NUE May 24, 18:05 UTCMay 24, 21:05 UTC3h 0m
2026-05-24 SXS6ZW EDI → AYT May 24, 12:10 UTCMay 24, 16:30 UTC4h 20m
2026-05-24 SXS5LJ ASR → EAP May 24, 05:55 UTCMay 24, 10:25 UTC4h 30m
2026-05-24 SXS79Y AYT → PAD May 24, 00:45 UTCMay 24, 04:00 UTC3h 15m
2026-05-23 SXS1FG AYT → ERF May 23, 20:10 UTCMay 23, 23:20 UTC3h 10m
2026-05-23 SXS7HT LEJ → AYT May 23, 15:35 UTCMay 23, 18:40 UTC3h 5m
2026-05-23 SXS9EP AYT → LEJ May 23, 11:20 UTCMay 23, 14:25 UTC3h 5m
2026-05-23 SXS5NW AYT → DUS May 23, 07:15 UTCMay 23, 09:55 UTC2h 40m
2026-05-23 SXS4RM AYT → DRS May 23, 03:00 UTCMay 23, 05:50 UTC2h 50m
2026-05-22 SXS4ZZ LBA → AYT May 22, 16:30 UTCMay 22, 20:30 UTC4h 0m
2026-05-22 SXS3UC AYT → LBA May 22, 10:30 UTCMay 22, 14:55 UTC4h 25m
2026-05-22 SXS4TM CGN → AYT May 22, 05:35 UTCMay 22, 08:40 UTC3h 5m
2026-05-21 SXS5XE EZS → CGN May 21, 19:10 UTCMay 22, 04:05 UTC8h 55m
2026-05-21 SXS1KH AYT → CGN May 21, 13:55 UTCMay 21, 17:25 UTC3h 30m
2026-05-21 SXS7CG MUC → AYT May 21, 08:35 UTCMay 21, 11:05 UTC2h 30m
2026-05-21 SXS8CB PAD → AYT May 21, 04:05 UTCMay 21, 06:50 UTC2h 45m
2026-05-20 SXS4TF BTS → AYT May 20, 22:35 UTCMay 21, 00:50 UTC2h 15m
2026-05-20 SXS6PR AYT → BTS May 20, 18:55 UTCMay 20, 21:15 UTC2h 20m
2026-05-20 SXS7UJ CGN → AYT May 20, 10:30 UTCMay 20, 13:25 UTC2h 55m
2026-05-20 SXS8UH AYT → ADB May 20, 05:25 UTCMay 20, 08:45 UTC3h 20m
2026-05-19 SXS2GA CGN → AYT May 19, 23:05 UTCMay 20, 02:15 UTC3h 10m
2026-05-19 SXS1XU AYT → CGN May 19, 18:00 UTCMay 19, 21:25 UTC3h 25m
2026-05-18 SXS4QN BHX → AYT May 18, 16:15 UTCMay 18, 20:05 UTC3h 49m
2026-05-18 SXS3YT HAM → AYT May 18, 10:25 UTCMay 18, 14:40 UTC4h 15m
2026-05-18 SXS3QZ STR → AYT May 18, 00:20 UTCMay 18, 03:25 UTC3h 5m
2026-05-17 SXS2XK AYT → PAD May 17, 19:40 UTCMay 17, 23:00 UTC3h 20m
2026-05-17 SXS72X STR → AYT May 17, 15:05 UTCMay 17, 17:40 UTC2h 35m
2026-05-17 SXS69M AYT → STR May 17, 09:55 UTCMay 17, 13:10 UTC3h 15m
2026-05-17 SXS3KG ASR → AYT May 17, 07:05 UTCMay 17, 07:25 UTC20m

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

Mode-S 4BCE1A frequently asked

What is Mode-S code 4BCE1A?
4BCE1A is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-SPZ.
Where is Mode-S 4BCE1A registered?
Mode-S code 4BCE1A is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BCE1A broadcasting right now?
Yes. Mode-S 4BCE1A is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BCE1A, octal 22747032, decimal 4,967,962.
What flights does 4BCE1A operate?
Mode-S 4BCE1A has broadcast 20 distinct callsigns, including SXS4QB, SXS93H, SXS8JF, SXS6WB, SXS6RQ.