Apparatus

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sensors Mode-S transponder

4BBD0A

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-OHJ · BOEING 737 MAX 8

Hex
4BBD0A
Octal
22736412
Decimal
4,963,594
Country
TR
Tail
TC-OHJ
Type
B38M
No current signal · last broadcast Jul 26, 21:15 UTC
Flights observed
349
Distinct callsigns
20
Country
TR
Last broadcast
Jul 26, 21:15 UTC

Last known position

Most recent position reported by Mode-S 4BBD0A.

Country allocation

The ICAO 24-bit address 4BBD0A 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
TKJ584 - 24 2026-07-14
TKJ36U Tarkim Havacilik 8 2026-07-22
TKJ1YG Tarkim Havacilik 8 2026-07-22
TKJ9SC - 7 2026-05-31
TKJ9CK Tarkim Havacilik 7 2026-05-31
TKJ583 - 7 2026-07-10
TKJ3301 - 6 2026-05-28
TKJ6VP - 5 2026-07-22
TKJ6UN - 4 2026-07-21
TKJ5YQ - 4 2026-07-06
TKJ5VN - 4 2026-07-09
TKJ5UT - 4 2026-07-06
TKJ3300 - 4 2026-05-28
TKJ22D - 4 2026-07-21
TKJ94F Tarkim Havacilik 3 2026-06-10
TKJ8UY - 3 2026-06-08
TKJ87B Tarkim Havacilik 3 2026-07-23
TKJ70Z - 3 2026-05-29
TKJ6UW Tarkim Havacilik 3 2026-06-11
TKJ51T Tarkim Havacilik 3 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 TKJ4ZD SAW → GZT Jul 26, 20:55 UTCJul 26, 21:15 UTC20m
2026-07-26 TKJ8QX ESB → AYT Jul 26, 15:35 UTCJul 26, 18:40 UTC3h 5m
2026-07-26 TKJ82C ADB → OGU Jul 26, 10:50 UTCJul 26, 14:10 UTC3h 20m
2026-07-26 TKJ7NZ - Jul 26, 04:10 UTCJul 26, 08:05 UTC3h 56m
2026-07-26 TKJ3XP ADB → SAW Jul 26, 01:40 UTCJul 26, 02:35 UTC55m
2026-07-25 TKJ2BX SAW → ADB Jul 25, 22:45 UTCJul 25, 23:20 UTC35m
2026-07-25 TKJ9BP DLM → SAW Jul 25, 15:10 UTCJul 25, 19:35 UTC4h 25m
2026-07-25 TKJ84L ARN → SAW Jul 25, 10:25 UTCJul 25, 13:20 UTC2h 55m
2026-07-25 TKJ7FK ECN → SAW Jul 25, 05:45 UTCJul 25, 09:00 UTC3h 15m
2026-07-25 TKJ51T ESB → AYT Jul 25, 00:05 UTCJul 25, 02:40 UTC2h 35m
2026-07-24 TKJ3HF - Jul 24, 19:55 UTCJul 24, 22:55 UTC3h 0m
2026-07-24 TKJ5NH AYT → SAW Jul 24, 15:40 UTCJul 24, 16:35 UTC55m
2026-07-24 TKJ57D SAW → AYT Jul 24, 13:10 UTCJul 24, 14:20 UTC1h 10m
2026-07-24 TKJ6YK DUS → SAW Jul 24, 04:55 UTCJul 24, 09:25 UTC4h 30m
2026-07-24 TKJ51T ESB → AYT Jul 24, 00:25 UTCJul 24, 02:55 UTC2h 30m
2026-07-23 TKJ3HF - Jul 23, 19:55 UTCJul 23, 22:50 UTC2h 55m
2026-07-23 TKJ2ED GVA → ESB Jul 23, 14:15 UTCJul 23, 17:25 UTC3h 10m
2026-07-23 TKJ87B VAN → SAW Jul 23, 04:30 UTCJul 23, 10:40 UTC6h 10m
2026-07-23 TKJ62Q TZX → SAW Jul 23, 02:05 UTCJul 23, 02:50 UTC45m
2026-07-22 TKJ7MR - Jul 22, 21:50 UTCJul 22, 22:35 UTC45m
2026-07-22 TKJ4TK TZX → YEI Jul 22, 18:50 UTCJul 22, 19:35 UTC45m
2026-07-22 TKJ1GZ SAW → AYT Jul 22, 16:10 UTCJul 22, 17:05 UTC55m
2026-07-22 TKJ36U EBL → SAW Jul 22, 11:50 UTCJul 22, 14:40 UTC2h 50m
2026-07-22 TKJ1YG VKO → SAW Jul 22, 10:20 UTCJul 22, 11:30 UTC1h 10m
2026-07-22 TKJ6VP - Jul 22, 03:35 UTCJul 22, 03:55 UTC20m
2026-07-22 TKJ6VP - Jul 22, 01:30 UTCJul 22, 02:50 UTC1h 20m
2026-07-21 TKJ2AR - Jul 21, 21:10 UTCJul 21, 22:55 UTC1h 45m
2026-07-21 TKJ6UN - Jul 21, 15:30 UTCJul 21, 18:15 UTC2h 45m
2026-07-21 TKJ22D - Jul 21, 10:50 UTCJul 21, 14:00 UTC3h 10m
2026-07-21 TKJ1JF - Jul 21, 08:25 UTCJul 21, 09:05 UTC40m
2026-07-21 TKJ5UH - Jul 21, 06:30 UTCJul 21, 07:10 UTC40m
2026-07-20 TKJ6VP - Jul 20, 21:10 UTCJul 21, 03:40 UTC6h 29m
2026-07-20 TKJ6UN - Jul 20, 15:35 UTCJul 20, 18:20 UTC2h 45m
2026-07-20 TKJ22D - Jul 20, 11:10 UTCJul 20, 14:15 UTC3h 5m
2026-07-20 TKJ87B VAN → SAW Jul 20, 04:10 UTCJul 20, 08:50 UTC4h 40m
2026-07-19 TKJ5079 STN → SAW Jul 19, 17:50 UTCJul 19, 21:00 UTC3h 10m
2026-07-19 TKJ5078 SAW → STN Jul 19, 12:30 UTCJul 19, 16:05 UTC3h 35m
2026-07-19 TKJ5037 CGN → SAW Jul 19, 07:45 UTCJul 19, 10:20 UTC2h 35m
2026-07-19 TKJ5036 SAW → CGN Jul 19, 03:05 UTCJul 19, 05:55 UTC2h 50m
2026-07-18 TKJ5297 BJV → SAW Jul 18, 19:40 UTCJul 18, 20:25 UTC45m
2026-07-18 TKJ5296 - Jul 18, 17:40 UTCJul 18, 18:30 UTC50m
2026-07-18 TKJ36U - Jul 18, 12:55 UTCJul 18, 15:45 UTC2h 50m
2026-07-18 TKJ1YG - Jul 18, 06:35 UTCJul 18, 09:50 UTC3h 15m
2026-07-18 TKJ7JZ BGW → SAW Jul 18, 02:00 UTCJul 18, 02:29 UTC30m
2026-07-17 TKJ45U - Jul 17, 20:40 UTCJul 17, 20:55 UTC15m
2026-07-17 TKJ1BP - Jul 17, 15:35 UTCJul 17, 17:50 UTC2h 15m
2026-07-17 TKJ4LQ - Jul 17, 10:30 UTCJul 17, 13:20 UTC2h 50m
2026-07-17 TKJ87B VAN → SAW Jul 17, 04:14 UTCJul 17, 08:49 UTC4h 35m
2026-07-16 TKJ9CL - Jul 16, 17:30 UTCJul 16, 18:05 UTC35m
2026-07-16 TKJ5303 - Jul 16, 09:30 UTCJul 16, 10:04 UTC35m

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

Mode-S 4BBD0A frequently asked

What is Mode-S code 4BBD0A?
4BBD0A is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-OHJ.
Where is Mode-S 4BBD0A registered?
Mode-S code 4BBD0A is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BBD0A broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BBD0A, octal 22736412, decimal 4,963,594.
What flights does 4BBD0A operate?
Mode-S 4BBD0A has broadcast 20 distinct callsigns, including TKJ584, TKJ36U, TKJ1YG, TKJ9SC, TKJ9CK.