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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 SXS2LL · 37,000 ft
Flights observed
320
Distinct callsigns
20
Country
TR
Last broadcast
2h 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
SXS8BU - 6 2026-07-07
SXS4HL - 6 2026-07-07
SXS5UY - 5 2026-06-26
SXS1444 SunExpress 5 2026-04-23
SXS9ZT SunExpress 4 2026-05-23
SXS9SE SunExpress 4 2026-06-26
SXS964 SunExpress 4 2026-05-08
SXS6ZT - 4 2026-07-06
SXS5ZE SunExpress 4 2026-05-01
SXS5GX - 4 2026-07-08
SXS21E SunExpress 4 2026-05-23
SXS1445 SunExpress 4 2026-04-23
SXS9WA - 3 2026-06-19
SXS965 - 3 2026-07-05
SXS8NM - 3 2026-07-11
SXS8LA - 3 2026-07-11
SXS8KV SunExpress 3 2026-05-13
SXS7RR - 3 2026-07-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 SXS22G OGU → STR Jul 14, 13:55 UTCJul 14, 17:10 UTC3h 15m
2026-07-14 SXS2RQ - Jul 14, 06:25 UTCJul 14, 08:50 UTC2h 25m
2026-07-14 SXS4SB - Jul 14, 01:10 UTCJul 14, 04:20 UTC3h 10m
2026-07-13 SXS2LL STR → AYT Jul 13, 18:50 UTCJul 13, 21:35 UTC2h 45m
2026-07-13 SXS5NG AYT → STR Jul 13, 14:25 UTCJul 13, 17:40 UTC3h 15m
2026-07-13 SXS9UL - Jul 13, 08:10 UTCJul 13, 11:05 UTC2h 55m
2026-07-13 SXS58U - Jul 13, 03:30 UTCJul 13, 06:50 UTC3h 20m
2026-07-12 SXS5HU - Jul 12, 19:30 UTCJul 12, 22:20 UTC2h 50m
2026-07-12 SXS6XP - Jul 12, 15:01 UTCJul 12, 18:01 UTC3h 0m
2026-07-12 SXS1CM - Jul 12, 10:35 UTCJul 12, 13:25 UTC2h 50m
2026-07-12 SXS8RG AYT → BER Jul 12, 06:05 UTCJul 12, 09:10 UTC3h 5m
2026-07-12 SXS8KW PAD → AYT Jul 12, 01:40 UTCJul 12, 04:45 UTC3h 5m
2026-07-11 SXS4UQ - Jul 11, 21:15 UTCJul 12, 00:35 UTC3h 20m
2026-07-11 SXS8JE - Jul 11, 17:00 UTCJul 11, 19:50 UTC2h 50m
2026-07-11 SXS5ET - Jul 11, 12:15 UTCJul 11, 15:30 UTC3h 15m
2026-07-11 SXS8LA HAM → AYT Jul 11, 07:35 UTCJul 11, 10:50 UTC3h 15m
2026-07-11 SXS8NM - Jul 11, 02:30 UTCJul 11, 06:01 UTC3h 30m
2026-07-10 SXS8LA HAM → AYT Jul 10, 19:00 UTCJul 10, 22:05 UTC3h 6m
2026-07-10 SXS8NM AYT → HAM Jul 10, 14:15 UTCJul 10, 17:45 UTC3h 30m
2026-07-10 SXS4UA - Jul 10, 09:10 UTCJul 10, 12:45 UTC3h 35m
2026-07-09 SXS62C - Jul 9, 19:45 UTCJul 10, 07:50 UTC12h 5m
2026-07-09 SXS5YP - Jul 9, 13:25 UTCJul 9, 17:45 UTC4h 20m
2026-07-09 SXS5ZP - Jul 9, 07:55 UTCJul 9, 10:40 UTC2h 45m
2026-07-09 SXS2MD - Jul 9, 03:30 UTCJul 9, 06:45 UTC3h 15m
2026-07-09 SXS78J - Jul 9, 00:50 UTCJul 9, 02:20 UTC1h 30m
2026-07-08 SXS6QM - Jul 8, 21:40 UTCJul 8, 23:05 UTC1h 25m
2026-07-08 SXS6ZH - Jul 8, 19:35 UTCJul 8, 20:05 UTC30m
2026-07-08 SXS7RR - Jul 8, 13:45 UTCJul 8, 15:50 UTC2h 5m
2026-07-08 SXS5GX - Jul 8, 09:30 UTCJul 8, 12:25 UTC2h 55m
2026-07-08 SXS899 - Jul 8, 00:35 UTCJul 8, 04:20 UTC3h 45m
2026-07-07 SXS898 - Jul 7, 18:15 UTCJul 7, 22:20 UTC4h 5m
2026-07-07 SXS8BU - Jul 7, 13:05 UTCJul 7, 15:20 UTC2h 15m
2026-07-07 SXS4HL - Jul 7, 09:10 UTCJul 7, 11:50 UTC2h 40m
2026-07-07 SXS2QH - Jul 7, 04:20 UTCJul 7, 06:55 UTC2h 35m
2026-07-06 SXS1HF - Jul 6, 23:35 UTCJul 7, 02:50 UTC3h 15m
2026-07-06 SXS7EL - Jul 6, 20:25 UTCJul 6, 22:05 UTC1h 40m
2026-07-06 SXS6ZT - Jul 6, 18:00 UTCJul 6, 19:25 UTC1h 25m
2026-07-06 SXS8BU - Jul 6, 13:05 UTCJul 6, 15:20 UTC2h 15m
2026-07-06 SXS4HL - Jul 6, 09:10 UTCJul 6, 11:45 UTC2h 35m
2026-07-05 SXS965 - Jul 5, 18:50 UTCJul 6, 04:50 UTC10h 0m
2026-07-05 SXS8BU - Jul 5, 13:00 UTCJul 5, 15:15 UTC2h 15m
2026-07-05 SXS4HL - Jul 5, 09:10 UTCJul 5, 11:45 UTC2h 35m
2026-07-05 SXS8ZW - Jul 5, 06:20 UTCJul 5, 06:50 UTC30m
2026-07-05 SXS4KP - Jul 5, 04:15 UTCJul 5, 05:00 UTC45m
2026-07-04 SXS23Q - Jul 4, 18:25 UTCJul 4, 20:40 UTC2h 15m
2026-07-04 SXS5XN - Jul 4, 13:40 UTCJul 4, 16:55 UTC3h 15m
2026-07-03 SXS3561 - Jul 3, 12:55 UTCJul 3, 13:10 UTC15m
2026-07-03 SXS6WA - Jul 3, 08:30 UTCJul 3, 11:35 UTC3h 5m
2026-07-03 SXS6SJ - Jul 3, 04:10 UTCJul 3, 07:05 UTC2h 55m
2026-07-02 SXS6WB - Jul 2, 12:50 UTCJul 2, 16:35 UTC3h 45m

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, SXS8BU, SXS4HL, SXS5UY.