Apparatus

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sensors Mode-S transponder

4BB2AA

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-LUJ · AIRBUS A-321neo

Hex
4BB2AA
Octal
22731252
Decimal
4,960,938
Country
TR
Tail
TC-LUJ
Type
A21N
Broadcasting now · callsign TKJ90U · 33,000 ft
Flights observed
189
Distinct callsigns
20
Country
TR
Last broadcast
3h ago

Current position

4BB2AA is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4BB2AA 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
TKJ1KE Tarkim Havacilik 6 2026-05-04
TKJ9SV Tarkim Havacilik 5 2026-05-25
TKJ8UY - 5 2026-05-04
TKJ2BG Tarkim Havacilik 5 2026-05-25
TKJ9SE Tarkim Havacilik 4 2026-05-29
TKJ8FS - 4 2026-05-26
TKJ6VP - 4 2026-05-30
TKJ6DS - 4 2026-05-08
TKJ5CU Tarkim Havacilik 4 2026-05-29
TKJ9XD - 3 2026-04-15
TKJ8QX - 3 2026-04-13
TKJ8QP - 3 2026-05-17
TKJ82C - 3 2026-04-13
TKJ7PZ Tarkim Havacilik 3 2026-04-21
TKJ71U Tarkim Havacilik 3 2026-05-12
TKJ6JZ - 3 2026-04-22
TKJ51T Tarkim Havacilik 3 2026-05-02
TKJ4ZY Tarkim Havacilik 3 2026-05-27
TKJ40R Tarkim Havacilik 3 2026-05-17
TKJ3ZG Tarkim Havacilik 3 2026-05-07

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 TKJ51D FCO → SAW May 30, 05:50 UTCMay 30, 08:35 UTC2h 45m
2026-05-30 TKJ6VP - May 30, 03:30 UTCMay 30, 03:40 UTC10m
2026-05-29 TKJ6VP - May 29, 21:05 UTCMay 30, 02:50 UTC5h 45m
2026-05-29 TKJ5301 ADB → ESB May 29, 18:40 UTCMay 29, 19:35 UTC55m
2026-05-29 TKJ5300 ESB → ADB May 29, 16:40 UTCMay 29, 17:25 UTC45m
2026-05-29 TKJ5CU AMS → SAW May 29, 11:20 UTCMay 29, 14:10 UTC2h 50m
2026-05-29 TKJ9SE SAW → STR May 29, 06:20 UTCMay 29, 09:45 UTC3h 25m
2026-05-28 TKJ3NA ADB → SAW May 28, 20:15 UTCMay 28, 20:40 UTC25m
2026-05-28 TKJ3NA ADB → SAW May 28, 19:30 UTCMay 28, 19:40 UTC10m
2026-05-28 TKJ9RG SAW → SZF May 28, 16:10 UTCMay 28, 17:10 UTC1h 0m
2026-05-27 TKJ39Y SAW → PRN May 27, 11:15 UTCMay 27, 13:50 UTC2h 35m
2026-05-27 TKJ2GJ SAW → DUS May 27, 06:29 UTCMay 27, 09:25 UTC2h 56m
2026-05-27 TKJ4ZY ESB → ERC May 27, 00:04 UTCMay 27, 01:34 UTC1h 30m
2026-05-26 TKJ8FS - May 26, 18:50 UTCMay 26, 20:05 UTC1h 15m
2026-05-26 TKJ1EC STR → ESB May 26, 12:35 UTCMay 26, 15:54 UTC3h 20m
2026-05-26 TKJ7AX SAW → CGN May 26, 07:10 UTCMay 26, 10:34 UTC3h 25m
2026-05-26 TKJ7QM GNY → ESB May 26, 04:15 UTCMay 26, 04:45 UTC30m
2026-05-26 TKJ1JS SAW → ADB May 26, 02:24 UTCMay 26, 02:44 UTC20m
2026-05-25 TKJ2BG DUS → SAW May 25, 15:35 UTCMay 25, 18:25 UTC2h 50m
2026-05-25 TKJ9SV SAW → DUS May 25, 10:40 UTCMay 25, 13:25 UTC2h 45m
2026-05-24 TKJ8FS - May 24, 18:45 UTCMay 24, 20:05 UTC1h 20m
2026-05-24 TKJ3PE GYD → SAW May 24, 16:05 UTCMay 24, 16:20 UTC15m
2026-05-24 TKJ3PE GYD → SAW May 24, 14:05 UTCMay 24, 15:25 UTC1h 20m
2026-05-24 TKJ56F SAW → GYD May 24, 10:40 UTCMay 24, 11:55 UTC1h 15m
2026-05-24 TKJ3NX - May 24, 06:05 UTCMay 24, 06:15 UTC10m
2026-05-23 TKJ3MQ - May 23, 21:30 UTCMay 24, 00:45 UTC3h 15m
2026-05-23 TKJ4NB - May 23, 16:40 UTCMay 23, 20:10 UTC3h 31m
2026-05-23 TKJ9ZE MUC → SAW May 23, 11:15 UTCMay 23, 13:25 UTC2h 10m
2026-05-23 TKJ7UN SAW → MUC May 23, 07:30 UTCMay 23, 09:45 UTC2h 15m
2026-05-23 TKJ2YP DLM → SAW May 23, 04:10 UTCMay 23, 04:35 UTC25m
2026-05-23 TKJ6JL SAW → DLM May 23, 01:55 UTCMay 23, 02:25 UTC30m
2026-05-22 TKJ9RL TZX → SAW May 22, 20:40 UTCMay 22, 20:50 UTC10m
2026-05-22 TKJ9RL TZX → SAW May 22, 19:30 UTCMay 22, 20:00 UTC30m
2026-05-22 TKJ5GM - May 22, 17:35 UTCMay 22, 18:05 UTC30m
2026-05-22 TKJ7FC BJV → SAW May 22, 13:05 UTCMay 22, 14:25 UTC1h 20m
2026-05-22 TKJ2KL ECN → ADB May 22, 10:10 UTCMay 22, 11:35 UTC1h 25m
2026-05-22 TKJ4ZY ESB → ERC May 22, 00:00 UTCMay 22, 01:15 UTC1h 15m
2026-05-21 TKJ8FS - May 21, 13:55 UTCMay 21, 20:05 UTC6h 10m
2026-05-21 TKJ8GD - May 21, 10:55 UTCMay 21, 11:55 UTC1h 0m
2026-05-20 TKJ8BJ - May 20, 18:45 UTCMay 20, 19:30 UTC45m
2026-05-20 TKJ8GV SAW → BJV May 20, 16:15 UTCMay 20, 16:45 UTC30m
2026-05-20 TKJ2JY STR → SAW May 20, 10:35 UTCMay 20, 13:00 UTC2h 25m
2026-05-20 TKJ35Z AJI → ESB May 20, 06:45 UTCMay 20, 09:05 UTC2h 20m
2026-05-19 TKJ2BG DUS → SAW May 19, 15:05 UTCMay 19, 17:45 UTC2h 40m
2026-05-19 TKJ9SV SAW → DUS May 19, 10:35 UTCMay 19, 13:20 UTC2h 45m
2026-05-19 TKJ3AG SAW → SSH May 19, 06:40 UTCMay 19, 06:50 UTC10m
2026-05-19 TKJ2DZ SAW → BEG May 19, 02:55 UTCMay 19, 03:30 UTC35m
2026-05-18 TKJ5CU AMS → SAW May 18, 11:10 UTCMay 18, 13:55 UTC2h 45m
2026-05-18 TKJ9SE SAW → STR May 18, 06:10 UTCMay 18, 09:15 UTC3h 5m
2026-05-17 TKJ190 JED → SAW May 17, 20:05 UTCMay 18, 03:35 UTC7h 30m

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

Mode-S 4BB2AA frequently asked

What is Mode-S code 4BB2AA?
4BB2AA is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-LUJ.
Where is Mode-S 4BB2AA registered?
Mode-S code 4BB2AA is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BB2AA broadcasting right now?
Yes. Mode-S 4BB2AA is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BB2AA, octal 22731252, decimal 4,960,938.
What flights does 4BB2AA operate?
Mode-S 4BB2AA has broadcast 20 distinct callsigns, including TKJ1KE, TKJ9SV, TKJ8UY, TKJ2BG, TKJ9SE.