Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

4BCE12

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-SPR · BOEING 737-800

Hex
4BCE12
Octal
22747022
Decimal
4,967,954
Country
TR
Tail
TC-SPR
Type
B738
Broadcasting now · callsign SXS4JH · 34,000 ft
Flights observed
162
Distinct callsigns
20
Country
TR
Last broadcast
4h ago

Current position

4BCE12 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4BCE12 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
SXS4UV SunExpress 8 2026-05-11
SXS8WK SunExpress 7 2026-05-11
SXS1444 SunExpress 5 2026-04-23
SXS9ZT SunExpress 4 2026-05-23
SXS964 SunExpress 4 2026-05-08
SXS5ZE SunExpress 4 2026-05-01
SXS5UY SunExpress 4 2026-04-29
SXS21E SunExpress 4 2026-05-23
SXS1445 SunExpress 4 2026-04-23
SXS9SE SunExpress 3 2026-04-29
SXS8KV SunExpress 3 2026-05-13
SXS8BU SunExpress 3 2026-05-03
SXS7DD SunExpress 3 2026-05-02
SXS6ZT SunExpress 3 2026-05-10
SXS6TQ SunExpress 3 2026-05-13
SXS5GX SunExpress 3 2026-05-14
SXS4TD - 3 2026-05-12
SXS4HL SunExpress 3 2026-05-03
SXS965 SunExpress 2 2026-04-16
SXS7RR SunExpress 2 2026-05-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 SXS2GA CGN → AYT May 29, 23:50 UTCMay 30, 02:55 UTC3h 5m
2026-05-29 SXS4XM - May 29, 18:15 UTCMay 29, 21:35 UTC3h 20m
2026-05-29 SXS3WH BRU → ESB May 29, 09:25 UTCMay 29, 12:10 UTC2h 45m
2026-05-29 SXS4MB ESB → BRU May 29, 04:35 UTCMay 29, 08:00 UTC3h 25m
2026-05-28 SXS6HR BRU → AYT May 28, 07:30 UTCMay 28, 09:55 UTC2h 25m
2026-05-28 SXS8YQ ESB → FRA May 28, 03:20 UTCMay 28, 05:35 UTC2h 15m
2026-05-26 SXS5KX DUS → ESB May 26, 18:30 UTCMay 26, 20:54 UTC2h 25m
2026-05-26 SXS6MF AYT → RTM May 26, 13:19 UTCMay 26, 16:50 UTC3h 30m
2026-05-26 SXS7WM BUD → AYT May 26, 09:45 UTCMay 26, 11:54 UTC2h 10m
2026-05-26 SXS6UE - May 26, 06:29 UTCMay 26, 08:45 UTC2h 15m
2026-05-26 SXS1PJ CGN → AYT May 26, 01:00 UTCMay 26, 04:15 UTC3h 15m
2026-05-25 SXS9NX - May 25, 20:09 UTCMay 25, 23:24 UTC3h 15m
2026-05-25 SXS9KZ STR → AYT May 25, 15:15 UTCMay 25, 18:40 UTC3h 25m
2026-05-25 SXS4ZJ AYT → GVA May 25, 10:30 UTCMay 25, 13:45 UTC3h 15m
2026-05-25 SXS4TM CGN → AYT May 25, 05:55 UTCMay 25, 08:55 UTC3h 0m
2026-05-24 SXS1729 - May 24, 09:35 UTCMay 25, 04:10 UTC18h 35m
2026-05-23 SXS1728 MUC → AMS May 23, 19:50 UTCMay 24, 07:40 UTC11h 50m
2026-05-23 SXS5MT AYT → DTM May 23, 16:00 UTCMay 23, 18:20 UTC2h 21m
2026-05-23 SXS9ZT FRA → BJV May 23, 11:15 UTCMay 23, 14:00 UTC2h 45m
2026-05-23 SXS21E EDO → DUS May 23, 06:35 UTCMay 23, 09:30 UTC2h 55m
2026-05-23 SXS5XK HAJ → EDO May 23, 02:35 UTCMay 23, 05:10 UTC2h 35m
2026-05-22 SXS2PC AYT → HAJ May 22, 21:30 UTCMay 23, 00:45 UTC3h 15m
2026-05-22 SXS5MQ MAN → AYT May 22, 16:00 UTCMay 22, 20:05 UTC4h 5m
2026-05-22 SXS8KP DIY → HAJ May 22, 10:10 UTCMay 22, 14:30 UTC4h 20m
2026-05-20 SXS7HT LEJ → AYT May 20, 15:50 UTCMay 20, 18:45 UTC2h 55m
2026-05-20 SXS9EP AYT → LEJ May 20, 11:25 UTCMay 20, 14:25 UTC3h 0m
2026-05-20 SXS4CN DUS → AYT May 20, 05:50 UTCMay 20, 09:20 UTC3h 30m
2026-05-19 SXS5WT HAJ → DUS May 19, 18:25 UTCMay 20, 04:35 UTC10h 10m
2026-05-19 SXS5MZ DUS → EZS May 19, 06:35 UTCMay 19, 15:40 UTC9h 5m
2026-05-19 SXS13X - May 19, 01:20 UTCMay 19, 04:45 UTC3h 25m
2026-05-18 SXS2YG - May 18, 18:45 UTCMay 18, 21:55 UTC3h 10m
2026-05-18 SXS3VG GZT → DUS May 18, 06:45 UTCMay 18, 17:10 UTC10h 25m
2026-05-17 SXS2YL NUE → DLM May 17, 19:15 UTCMay 18, 04:15 UTC9h 0m
2026-05-17 SXS62Q AYT → DUS May 17, 13:35 UTCMay 17, 17:10 UTC3h 35m
2026-05-17 SXS4CN DUS → AYT May 17, 06:05 UTCMay 17, 09:00 UTC2h 55m
2026-05-17 SXS13X - May 17, 00:50 UTCMay 17, 04:20 UTC3h 30m
2026-05-16 SXS5HU BER → AYT May 16, 19:35 UTCMay 16, 22:25 UTC2h 50m
2026-05-16 SXS6XP AYT → BER May 16, 15:20 UTCMay 16, 18:30 UTC3h 10m
2026-05-16 SXS1CM BER → AYT May 16, 10:50 UTCMay 16, 13:55 UTC3h 5m
2026-05-16 SXS8RG AYT → BER May 16, 06:16 UTCMay 16, 09:35 UTC3h 20m
2026-05-16 SXS2RJ HAJ → AYT May 16, 01:50 UTCMay 16, 04:50 UTC3h 0m
2026-05-15 SXS9SB EDO → HAJ May 15, 21:25 UTCMay 16, 00:20 UTC2h 55m
2026-05-15 SXS9XT - May 15, 17:50 UTCMay 15, 20:10 UTC2h 20m
2026-05-15 SXS6WK STR → MUC May 15, 06:20 UTCMay 15, 15:40 UTC9h 19m
2026-05-14 SXS4RD - May 14, 18:50 UTCMay 15, 04:30 UTC9h 40m
2026-05-14 SXS7RR ZRH → ADB May 14, 14:10 UTCMay 14, 16:25 UTC2h 15m
2026-05-14 SXS5GX ADB → ZRH May 14, 10:05 UTCMay 14, 13:01 UTC2h 55m
2026-05-14 SXS7KV CGN → AYT May 14, 03:25 UTCMay 14, 08:05 UTC4h 40m
2026-05-13 SXS6TQ ECN → ADB May 13, 20:45 UTCMay 13, 21:50 UTC1h 5m
2026-05-13 SXS8KV ADB → ECN May 13, 18:40 UTCMay 13, 19:35 UTC55m

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

Mode-S 4BCE12 frequently asked

What is Mode-S code 4BCE12?
4BCE12 is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-SPR.
Where is Mode-S 4BCE12 registered?
Mode-S code 4BCE12 is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BCE12 broadcasting right now?
Yes. Mode-S 4BCE12 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BCE12, octal 22747022, decimal 4,967,954.
What flights does 4BCE12 operate?
Mode-S 4BCE12 has broadcast 20 distinct callsigns, including SXS4UV, SXS8WK, SXS1444, SXS9ZT, SXS964.