Apparatus

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sensors Mode-S transponder

4BCDD2

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-SNR · BOEING 737-800

Hex
4BCDD2
Octal
22746722
Decimal
4,967,890
Country
TR
Tail
TC-SNR
Type
B738
Broadcasting now · callsign SXS2JB · 20,475 ft
Flights observed
157
Distinct callsigns
20
Country
TR
Last broadcast
6h ago

Current position

4BCDD2 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4BCDD2 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
SXS1ZN SunExpress 5 2026-05-27
SXS6EG SunExpress 4 2026-05-27
SXS1CM SunExpress 4 2026-05-29
SXS8RG SunExpress 3 2026-05-29
SXS8KW SunExpress 3 2026-05-26
SXS6XD SunExpress 3 2026-04-15
SXS6RK SunExpress 3 2026-05-29
SXS5KE SunExpress 3 2026-05-07
SXS4UQ SunExpress 3 2026-05-25
SXS4KQ - 3 2026-05-08
SXS3ZX - 3 2026-04-16
SXS3TX SunExpress 3 2026-05-07
SXS9ZB SunExpress 2 2026-05-22
SXS9SC SunExpress 2 2026-04-19
SXS9LQ SunExpress 2 2026-05-20
SXS9HP SunExpress 2 2026-05-24
SXS9EP SunExpress 2 2026-04-13
SXS8SA - 2 2026-05-22
SXS8MP SunExpress 2 2026-05-14
SXS8JE SunExpress 2 2026-05-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 SXS1ST STR → DIY May 29, 20:20 UTCMay 29, 22:40 UTC2h 20m
2026-05-29 SXS6RK AYT → STR May 29, 15:50 UTCMay 29, 19:05 UTC3h 15m
2026-05-29 SXS1CM BER → AYT May 29, 11:40 UTCMay 29, 14:15 UTC2h 35m
2026-05-29 SXS8RG AYT → BER May 29, 06:15 UTCMay 29, 09:40 UTC3h 25m
2026-05-29 SXS2RJ HAJ → AYT May 29, 01:40 UTCMay 29, 04:35 UTC2h 55m
2026-05-28 SXS2PC AYT → HAJ May 28, 21:00 UTCMay 29, 00:35 UTC3h 35m
2026-05-28 SXS4BY WAW → AYT May 28, 17:20 UTCMay 28, 19:35 UTC2h 15m
2026-05-28 SXS3KQ AYT → WAW May 28, 13:00 UTCMay 28, 15:55 UTC2h 55m
2026-05-27 SXS1KJ AYT → BAL May 27, 16:15 UTCMay 27, 16:40 UTC25m
2026-05-27 SXS1ZN HAM → AYT May 27, 11:50 UTCMay 27, 14:55 UTC3h 5m
2026-05-27 SXS6EG AYT → HAM May 27, 07:05 UTCMay 27, 10:35 UTC3h 30m
2026-05-26 SXS6ZH ADB → AYT May 26, 19:10 UTCMay 26, 20:00 UTC50m
2026-05-26 SXS2HB - May 26, 17:35 UTCMay 26, 18:05 UTC30m
2026-05-26 SXS36L VIE → AYT May 26, 13:04 UTCMay 26, 15:29 UTC2h 25m
2026-05-26 SXS41C AYT → NUE May 26, 09:25 UTCMay 26, 11:50 UTC2h 25m
2026-05-26 SXS8KW PAD → AYT May 26, 01:20 UTCMay 26, 04:39 UTC3h 20m
2026-05-25 SXS4UQ AYT → PAD May 25, 20:59 UTCMay 26, 00:14 UTC3h 15m
2026-05-25 SXS8JE BER → BJV May 25, 16:45 UTCMay 25, 19:40 UTC2h 55m
2026-05-25 SXS5ET AYT → ZRH May 25, 12:25 UTCMay 25, 15:25 UTC3h 0m
2026-05-25 SXS5ZP ZRH → AYT May 25, 08:05 UTCMay 25, 11:10 UTC3h 5m
2026-05-25 SXS2MD AYT → ZRH May 25, 03:40 UTCMay 25, 06:50 UTC3h 10m
2026-05-24 SXS14E FMO → AYT May 24, 23:00 UTCMay 24, 23:46 UTC46m
2026-05-24 SXS6PZ AYT → FMO May 24, 17:35 UTCMay 24, 20:55 UTC3h 20m
2026-05-24 SXS4AC FRA → AYT May 24, 12:25 UTCMay 24, 15:35 UTC3h 10m
2026-05-24 SXS9HP AYT → FRA May 24, 07:20 UTCMay 24, 10:35 UTC3h 15m
2026-05-24 SXS6XR FMO → AYT May 24, 00:15 UTCMay 24, 03:45 UTC3h 30m
2026-05-23 SXS6BM AYT → FMO May 23, 19:35 UTCMay 23, 22:55 UTC3h 20m
2026-05-23 SXS78U DUS → EDO May 23, 15:15 UTCMay 23, 17:55 UTC2h 40m
2026-05-23 SXS77Z AYT → FMM May 23, 10:55 UTCMay 23, 13:55 UTC3h 0m
2026-05-23 SXS4TM CGN → AYT May 23, 05:50 UTCMay 23, 09:10 UTC3h 20m
2026-05-23 SXS5PU BHX → AYT May 23, 00:50 UTCMay 23, 04:40 UTC3h 49m
2026-05-22 SXS5CC CGN → TZX May 22, 23:05 UTCMay 22, 23:15 UTC10m
2026-05-22 SXS5CC CGN → TZX May 22, 19:40 UTCMay 22, 22:10 UTC2h 30m
2026-05-22 SXS1KH AYT → CGN May 22, 14:35 UTCMay 22, 18:00 UTC3h 25m
2026-05-22 SXS7617 VAN → AYT May 22, 12:45 UTCMay 22, 13:00 UTC15m
2026-05-22 SXS7616 AYT → VAN May 22, 08:40 UTCMay 22, 09:05 UTC25m
2026-05-22 SXS8SA AMM → AMM May 22, 06:35 UTCMay 22, 07:00 UTC25m
2026-05-22 SXS9ZB LTN → ADB May 22, 04:40 UTCMay 22, 05:05 UTC25m
2026-05-21 SXS11A HAJ → AYT May 21, 23:00 UTCMay 22, 02:05 UTC3h 5m
2026-05-21 SXS5EY AYT → HAJ May 21, 18:15 UTCMay 21, 21:35 UTC3h 20m
2026-05-21 SXS4AC FRA → AYT May 21, 12:55 UTCMay 21, 15:45 UTC2h 50m
2026-05-21 SXS9HP AYT → FRA May 21, 07:40 UTCMay 21, 10:50 UTC3h 10m
2026-05-20 SXS8LA HAM → AYT May 20, 18:55 UTCMay 20, 22:05 UTC3h 10m
2026-05-20 SXS8NM AYT → HAM May 20, 14:10 UTCMay 20, 17:35 UTC3h 25m
2026-05-20 SXS8HN HAM → AYT May 20, 09:10 UTCMay 20, 12:15 UTC3h 5m
2026-05-20 SXS9LQ AYT → HAM May 20, 04:25 UTCMay 20, 07:40 UTC3h 16m
2026-05-19 SXS4EA NCL → AYT May 19, 18:25 UTCMay 19, 22:30 UTC4h 5m
2026-05-19 SXS5CX AYT → NCL May 19, 12:10 UTCMay 19, 16:40 UTC4h 30m
2026-05-19 SXS46A STR → AYT May 19, 06:15 UTCMay 19, 09:00 UTC2h 45m
2026-05-18 SXS9EW STR → EZS May 18, 20:05 UTCMay 19, 04:30 UTC8h 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-SNR page for operator, model, and routing details .

Mode-S 4BCDD2 frequently asked

What is Mode-S code 4BCDD2?
4BCDD2 is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-SNR.
Where is Mode-S 4BCDD2 registered?
Mode-S code 4BCDD2 is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BCDD2 broadcasting right now?
Yes. Mode-S 4BCDD2 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BCDD2, octal 22746722, decimal 4,967,890.
What flights does 4BCDD2 operate?
Mode-S 4BCDD2 has broadcast 20 distinct callsigns, including SXS1ZN, SXS6EG, SXS1CM, SXS8RG, SXS8KW.