Apparatus

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sensors Mode-S transponder

4BBD12

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-OHR · BOEING 737 MAX 8

Hex
4BBD12
Octal
22736422
Decimal
4,963,602
Country
TR
Tail
TC-OHR
Type
B38M
No current signal · last broadcast 7h ago
Flights observed
153
Distinct callsigns
20
Country
TR
Last broadcast
7h ago

Last known position

Most recent position reported by Mode-S 4BBD12.

Country allocation

The ICAO 24-bit address 4BBD12 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
TKJ47Y Tarkim Havacilik 8 2026-04-28
TKJ8DK Tarkim Havacilik 4 2026-04-29
TKJ8KJ - 3 2026-04-30
TKJ4HD Tarkim Havacilik 3 2026-04-19
TKJ3LB Tarkim Havacilik 3 2026-04-13
TKJ20Q - 3 2026-04-13
TKJ9ZE Tarkim Havacilik 2 2026-04-14
TKJ9DT - 2 2026-04-21
TKJ8GV Tarkim Havacilik 2 2026-05-29
TKJ8BJ - 2 2026-05-29
TKJ7ZJ - 2 2026-05-18
TKJ7UN - 2 2026-04-14
TKJ71C Tarkim Havacilik 2 2026-05-25
TKJ60J Tarkim Havacilik 2 2026-05-24
TKJ5GR Tarkim Havacilik 2 2026-05-28
TKJ5EF Tarkim Havacilik 2 2026-05-29
TKJ572 Tarkim Havacilik 2 2026-04-17
TKJ4EP - 2 2026-04-15
TKJ3ZG Tarkim Havacilik 2 2026-05-25
TKJ3TH Tarkim Havacilik 2 2026-05-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 TKJ3XU SAW → CPH May 29, 21:15 UTCMay 29, 21:35 UTC20m
2026-05-29 TKJ8BJ - May 29, 18:35 UTCMay 29, 19:25 UTC50m
2026-05-29 TKJ8GV SAW → BJV May 29, 16:00 UTCMay 29, 16:50 UTC50m
2026-05-29 TKJ2NU FRA → SAW May 29, 11:30 UTCMay 29, 14:00 UTC2h 30m
2026-05-29 TKJ3QR SAW → TBS May 29, 06:30 UTCMay 29, 09:45 UTC3h 15m
2026-05-29 TKJ5EF SAW → BER May 29, 03:50 UTCMay 29, 04:10 UTC20m
2026-05-29 TKJ5EF SAW → BER May 29, 02:40 UTCMay 29, 03:10 UTC30m
2026-05-28 TKJ5GR SAW → PRN May 28, 21:05 UTCMay 28, 21:15 UTC10m
2026-05-28 TKJ5GR SAW → PRN May 28, 19:55 UTCMay 28, 20:15 UTC20m
2026-05-28 TKJ1BP - May 28, 14:35 UTCMay 28, 16:55 UTC2h 20m
2026-05-28 TKJ4LQ SAW → STR May 28, 10:30 UTCMay 28, 13:15 UTC2h 45m
2026-05-28 TKJ6ET ERZ → SAW May 28, 07:10 UTCMay 28, 08:30 UTC1h 20m
2026-05-28 TKJ7YA SAW → ERZ May 28, 03:50 UTCMay 28, 04:55 UTC1h 5m
2026-05-27 TKJ9SC - May 27, 16:20 UTCMay 27, 19:10 UTC2h 50m
2026-05-27 TKJ9CK SAW → AMS May 27, 11:20 UTCMay 27, 14:30 UTC3h 10m
2026-05-27 TKJ5VP TZX → SAW May 27, 05:55 UTCMay 27, 06:29 UTC35m
2026-05-27 TKJ6GM ADB → ESB May 27, 03:59 UTCMay 27, 04:09 UTC10m
2026-05-26 TKJ40R ESB → EZS May 26, 09:59 UTCMay 26, 12:24 UTC2h 25m
2026-05-26 TKJ8QP - May 26, 05:40 UTCMay 26, 08:04 UTC2h 25m
2026-05-25 TKJ3ZG SAW → BEG May 25, 20:59 UTCMay 26, 02:55 UTC5h 55m
2026-05-25 TKJ42Q SAW → CGN May 25, 15:20 UTCMay 25, 15:35 UTC15m
2026-05-25 TKJ1XH DXB → SAW May 25, 10:35 UTCMay 25, 13:10 UTC2h 35m
2026-05-25 TKJ71C SAW → AYT May 25, 06:20 UTCMay 25, 09:00 UTC2h 40m
2026-05-24 TKJ60J SAW → ADF May 24, 12:30 UTCMay 24, 15:05 UTC2h 35m
2026-05-24 TKJ3TH SAW → FRA May 24, 07:40 UTCMay 24, 10:15 UTC2h 35m
2026-05-23 TKJ49X FRA → SAW May 23, 20:30 UTCMay 23, 20:40 UTC10m
2026-05-23 TKJ7BU - May 23, 16:50 UTCMay 23, 19:45 UTC2h 55m
2026-05-23 TKJ39Y SAW → PRN May 23, 11:30 UTCMay 23, 14:15 UTC2h 45m
2026-05-23 TKJ2GJ SAW → DUS May 23, 06:55 UTCMay 23, 09:30 UTC2h 35m
2026-05-23 TKJ4UB SAW → BGW May 23, 04:10 UTCMay 23, 04:55 UTC45m
2026-05-22 TKJ2LU - May 22, 23:55 UTCMay 23, 00:30 UTC35m
2026-05-22 TKJ2RY - May 22, 17:00 UTCMay 22, 18:55 UTC1h 55m
2026-05-22 TKJ8XR ESB → STR May 22, 12:50 UTCMay 22, 14:45 UTC1h 55m
2026-05-22 TKJ2RG SJJ → SAW May 22, 09:50 UTCMay 22, 11:05 UTC1h 15m
2026-05-22 TKJ1AU GYD → ESB May 22, 07:00 UTCMay 22, 08:15 UTC1h 15m
2026-05-21 TKJ205 IST → DTW May 21, 19:45 UTCMay 22, 02:40 UTC6h 55m
2026-05-21 TKJ36U EBL → SAW May 21, 12:20 UTCMay 21, 15:20 UTC3h 0m
2026-05-21 TKJ1YG VKO → SAW May 21, 07:20 UTCMay 21, 10:25 UTC3h 5m
2026-05-20 TKJ21K - May 20, 10:40 UTCMay 20, 13:25 UTC2h 45m
2026-05-20 TKJ9ZV ESB → CDG May 20, 06:00 UTCMay 20, 08:45 UTC2h 45m
2026-05-18 TKJ9NQ BER → SAW May 18, 15:50 UTCMay 18, 17:55 UTC2h 5m
2026-05-18 TKJ4ZV - May 18, 11:05 UTCMay 18, 13:35 UTC2h 30m
2026-05-18 TKJ7ZJ - May 18, 04:30 UTCMay 18, 07:50 UTC3h 20m
2026-05-17 TKJ8UC - May 17, 17:10 UTCMay 17, 17:50 UTC40m
2026-05-17 TKJ2NU FRA → SAW May 17, 12:35 UTCMay 17, 13:50 UTC1h 15m
2026-05-17 TKJ3QR SAW → TBS May 17, 06:40 UTCMay 17, 09:25 UTC2h 45m
2026-05-16 TKJ190 JED → SAW May 16, 20:00 UTCMay 17, 03:50 UTC7h 50m
2026-05-16 TKJ6BL MLX → ESB May 16, 14:35 UTCMay 16, 15:45 UTC1h 10m
2026-05-16 TKJ6MP SAW → SJJ May 16, 11:46 UTCMay 16, 13:15 UTC1h 30m
2026-05-16 TKJ7AD TZX → SAW May 16, 08:11 UTCMay 16, 08:41 UTC30m

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

Mode-S 4BBD12 frequently asked

What is Mode-S code 4BBD12?
4BBD12 is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-OHR.
Where is Mode-S 4BBD12 registered?
Mode-S code 4BBD12 is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BBD12 broadcasting right now?
No active broadcast right now. Last signal was 7h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BBD12, octal 22736422, decimal 4,963,602.
What flights does 4BBD12 operate?
Mode-S 4BBD12 has broadcast 20 distinct callsigns, including TKJ47Y, TKJ8DK, TKJ8KJ, TKJ4HD, TKJ3LB.