Apparatus

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sensors Mode-S transponder

4BCE01

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-SPA · BOEING 737-800

Hex
4BCE01
Octal
22747001
Decimal
4,967,937
Country
TR
Tail
TC-SPA
Type
B738
Broadcasting now · callsign SXS4AX · 34,000 ft
Flights observed
171
Distinct callsigns
20
Country
TR
Last broadcast
10h ago

Current position

4BCE01 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4BCE01 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
SXS46A SunExpress 6 2026-04-16
SXS3ZX - 4 2026-05-02
SXS3FP SunExpress 4 2026-05-02
SXS8CP SunExpress 3 2026-04-13
SXS6RK SunExpress 3 2026-05-13
SXS5YP SunExpress 3 2026-05-01
SXS4UA SunExpress 3 2026-05-02
SXS1EN - 3 2026-04-17
SXS9UK SunExpress 2 2026-05-13
SXS8SR SunExpress 2 2026-05-13
SXS8CB SunExpress 2 2026-04-27
SXS7CG SunExpress 2 2026-04-27
SXS78U SunExpress 2 2026-05-12
SXS77Z SunExpress 2 2026-05-12
SXS6SF SunExpress 2 2026-05-26
SXS6EG SunExpress 2 2026-05-09
SXS6A SunExpress 2 2026-05-29
SXS5KE SunExpress 2 2026-05-03
SXS4Y SunExpress 2 2026-05-29
SXS4VD SunExpress 2 2026-04-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 SXS5901 - May 29, 22:00 UTCMay 29, 22:50 UTC50m
2026-05-29 SXS5900 - May 29, 17:30 UTCMay 29, 18:25 UTC55m
2026-05-29 SXS4Y AYT → CGN May 29, 10:05 UTCMay 29, 10:45 UTC40m
2026-05-29 SXS6A DLM → VIE May 29, 07:55 UTCMay 29, 08:55 UTC1h 0m
2026-05-28 SXS5SV BRU → ADB May 28, 16:35 UTCMay 28, 19:30 UTC2h 55m
2026-05-28 SXS3AV AOE → BRU May 28, 11:30 UTCMay 28, 15:05 UTC3h 35m
2026-05-28 SXS3CA BRU → AOE May 28, 07:20 UTCMay 28, 10:10 UTC2h 50m
2026-05-28 SXS1XP ADB → BRU May 28, 01:45 UTCMay 28, 05:20 UTC3h 35m
2026-05-27 SXS921 - May 27, 18:00 UTCMay 27, 21:25 UTC3h 25m
2026-05-27 SXS2VY ADB → MAD May 27, 12:40 UTCMay 27, 16:00 UTC3h 20m
2026-05-27 SXS1XE - May 27, 10:15 UTCMay 27, 10:50 UTC35m
2026-05-27 SXS5YG - May 27, 07:05 UTCMay 27, 07:30 UTC25m
2026-05-27 SXS5MY DUS → AYT May 27, 04:45 UTCMay 27, 06:04 UTC1h 20m
2026-05-26 SXS1ZQ NUE → AYT May 26, 22:25 UTCMay 27, 01:09 UTC2h 45m
2026-05-26 SXS6SF AYT → NUE May 26, 18:05 UTCMay 26, 21:04 UTC3h 0m
2026-05-26 SXS6AL LEJ → AYT May 26, 10:54 UTCMay 26, 13:50 UTC2h 55m
2026-05-26 SXS8JX AYT → LEJ May 26, 06:34 UTCMay 26, 09:40 UTC3h 5m
2026-05-26 SXS585 BRS → AYT May 26, 03:00 UTCMay 26, 03:50 UTC50m
2026-05-25 SXS8RQ BRS → AYT May 25, 22:30 UTCMay 26, 02:04 UTC3h 35m
2026-05-25 SXS584 AYT → BRS May 25, 17:35 UTCMay 25, 21:19 UTC3h 45m
2026-05-25 SXS5LU MUC → ADB May 25, 13:00 UTCMay 25, 15:10 UTC2h 10m
2026-05-25 SXS7BN ADB → MUC May 25, 09:05 UTCMay 25, 11:25 UTC2h 20m
2026-05-24 SXS5RT GZT → ADB May 24, 17:50 UTCMay 24, 21:45 UTC3h 55m
2026-05-24 SXS7WX AYT → BER May 24, 13:45 UTCMay 24, 16:15 UTC2h 30m
2026-05-24 SXS3WY ADB → BSL May 24, 09:50 UTCMay 24, 12:25 UTC2h 35m
2026-05-24 SXS75G BER → ADB May 24, 05:25 UTCMay 24, 07:50 UTC2h 25m
2026-05-24 SXS8ER DIY → AYT May 24, 01:15 UTCMay 24, 03:55 UTC2h 40m
2026-05-23 SXS6TQ ECN → ADB May 23, 20:50 UTCMay 23, 21:45 UTC55m
2026-05-23 SXS8KV ADB → ECN May 23, 18:45 UTCMay 23, 19:45 UTC1h 0m
2026-05-23 SXS6NT BHX → ADB May 23, 14:00 UTCMay 23, 17:25 UTC3h 25m
2026-05-23 SXS4GQ ADB → BHX May 23, 08:30 UTCMay 23, 12:10 UTC3h 40m
2026-05-23 SXS2QH - May 23, 04:15 UTCMay 23, 06:55 UTC2h 40m
2026-05-22 SXS1HF - May 22, 23:30 UTCMay 23, 02:40 UTC3h 9m
2026-05-22 SXS4HF SZF → ADB May 22, 21:25 UTCMay 22, 21:40 UTC15m
2026-05-22 SXS6DY ADB → EIN May 22, 18:10 UTCMay 22, 18:40 UTC30m
2026-05-22 SXS8BU ASR → DUS May 22, 13:50 UTCMay 22, 16:10 UTC2h 20m
2026-05-22 SXS4HL ADB → STR May 22, 09:40 UTCMay 22, 12:30 UTC2h 50m
2026-05-21 SXS2BQ STN → ADB May 21, 21:40 UTCMay 22, 00:55 UTC3h 15m
2026-05-21 SXS5LG ADB → STN May 21, 16:50 UTCMay 21, 20:20 UTC3h 30m
2026-05-21 SXS4Y AYT → CGN May 21, 12:55 UTCMay 21, 13:50 UTC55m
2026-05-21 SXS6A DLM → VIE May 21, 10:40 UTCMay 21, 11:40 UTC1h 0m
2026-05-21 SXS5WQ - May 21, 06:50 UTCMay 21, 07:35 UTC45m
2026-05-21 SXS6SB ADB → STR May 21, 04:40 UTCMay 21, 05:25 UTC45m
2026-05-20 SXS7AM VIE → ADB May 20, 12:10 UTCMay 20, 13:50 UTC1h 40m
2026-05-20 SXS3HZ ADB → VIE May 20, 09:00 UTCMay 20, 10:55 UTC1h 55m
2026-05-19 SXS2NB LBA → AYT May 19, 23:35 UTCMay 20, 02:10 UTC2h 35m
2026-05-19 SXS7DQ ADB → CGN May 19, 18:30 UTCMay 19, 21:35 UTC3h 5m
2026-05-18 SXS5Y ADB → ASR May 18, 21:05 UTCMay 18, 22:15 UTC1h 10m
2026-05-18 SXS7LM - May 18, 18:55 UTCMay 18, 19:40 UTC45m
2026-05-18 SXS9CU - May 18, 13:05 UTCMay 18, 15:10 UTC2h 5m

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

Mode-S 4BCE01 frequently asked

What is Mode-S code 4BCE01?
4BCE01 is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-SPA.
Where is Mode-S 4BCE01 registered?
Mode-S code 4BCE01 is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BCE01 broadcasting right now?
Yes. Mode-S 4BCE01 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BCE01, octal 22747001, decimal 4,967,937.
What flights does 4BCE01 operate?
Mode-S 4BCE01 has broadcast 20 distinct callsigns, including SXS46A, SXS3ZX, SXS3FP, SXS8CP, SXS6RK.