Apparatus

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sensors Mode-S transponder

4BB2A9

ICAO 24-bit transponder address · allocated to Turkey

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

Hex
4BB2A9
Octal
22731251
Decimal
4,960,937
Country
TR
Tail
TC-LUI
Type
A21N
No current signal · last broadcast Jul 26, 21:10 UTC
Flights observed
419
Distinct callsigns
20
Country
TR
Last broadcast
Jul 26, 21:10 UTC

Last known position

Most recent position reported by Mode-S 4BB2A9.

Country allocation

The ICAO 24-bit address 4BB2A9 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
TKJ9SE - 11 2026-07-05
TKJ5CU Tarkim Havacilik 11 2026-07-05
TKJ9CK - 7 2026-07-17
TKJ9SC - 6 2026-07-17
TKJ6VP - 6 2026-07-08
TKJ6MD Tarkim Havacilik 6 2026-07-25
TKJ6JZ - 6 2026-07-10
TKJ4QU - 6 2026-07-20
TKJ3LB Tarkim Havacilik 6 2026-07-21
TKJ20Q - 6 2026-07-21
TKJ206 - 6 2026-07-11
TKJ15J Tarkim Havacilik 6 2026-07-20
TKJ9XD - 5 2026-07-16
TKJ8RE Tarkim Havacilik 5 2026-07-25
TKJ8FS - 5 2026-05-09
TKJ6WM - 5 2026-06-23
TKJ30H Tarkim Havacilik 5 2026-06-23
TKJ1FZ - 5 2026-07-16
TKJ9CQ Tarkim Havacilik 4 2026-07-24
TKJ8UY - 4 2026-06-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 TKJ1XN SKP → SAW Jul 26, 20:50 UTCJul 26, 21:10 UTC20m
2026-07-26 TKJ7KQ - Jul 26, 16:15 UTCJul 26, 17:45 UTC1h 30m
2026-07-26 TKJ8JC YEI → DIY Jul 26, 13:50 UTCJul 26, 15:05 UTC1h 15m
2026-07-26 TKJ4FT - Jul 26, 11:50 UTCJul 26, 12:25 UTC35m
2026-07-26 TKJ1KZ - Jul 26, 09:55 UTCJul 26, 10:25 UTC30m
2026-07-25 TKJ192 DFW → IST Jul 25, 22:30 UTCJul 26, 06:40 UTC8h 11m
2026-07-25 TKJ8RE DLM → SAW Jul 25, 19:20 UTCJul 25, 20:20 UTC1h 0m
2026-07-25 TKJ6MD SAW → DLM Jul 25, 17:05 UTCJul 25, 17:50 UTC45m
2026-07-25 TKJ40A ADB → BEG Jul 25, 14:15 UTCJul 25, 15:55 UTC1h 40m
2026-07-25 TKJ8GD - Jul 25, 10:30 UTCJul 25, 11:50 UTC1h 20m
2026-07-24 TKJ1506 - Jul 24, 23:50 UTCJul 25, 07:50 UTC8h 0m
2026-07-24 TKJ9EF ESB → AYT Jul 24, 18:45 UTCJul 24, 21:20 UTC2h 35m
2026-07-24 TKJ8FD SAW → SJJ Jul 24, 14:10 UTCJul 24, 17:10 UTC3h 0m
2026-07-24 TKJ48M - Jul 24, 07:10 UTCJul 24, 08:20 UTC1h 10m
2026-07-24 TKJ9CQ TZX → SAW Jul 24, 04:35 UTCJul 24, 05:40 UTC1h 5m
2026-07-23 TKJ7JZ BGW → SAW Jul 23, 19:50 UTCJul 24, 02:05 UTC6h 15m
2026-07-23 TKJ2BG DUS → SAW Jul 23, 15:20 UTCJul 23, 17:55 UTC2h 35m
2026-07-23 TKJ9SV SAW → DUS Jul 23, 10:40 UTCJul 23, 13:40 UTC3h 0m
2026-07-23 TKJ6MR - Jul 23, 03:55 UTCJul 23, 08:20 UTC4h 25m
2026-07-22 TKJ2KB - Jul 22, 22:15 UTCJul 23, 01:50 UTC3h 35m
2026-07-22 TKJ2MU SAW → GYD Jul 22, 17:50 UTCJul 22, 20:35 UTC2h 45m
2026-07-22 TKJ39Y SAW → PRN Jul 22, 11:40 UTCJul 22, 14:45 UTC3h 5m
2026-07-21 TKJ4MN - Jul 21, 18:00 UTCJul 21, 19:45 UTC1h 45m
2026-07-21 TKJ7YN - Jul 21, 16:15 UTCJul 21, 16:35 UTC20m
2026-07-21 TKJ7YN - Jul 21, 15:05 UTCJul 21, 15:25 UTC20m
2026-07-21 TKJ20Q - Jul 21, 11:10 UTCJul 21, 13:15 UTC2h 5m
2026-07-21 TKJ3LB ADB → ESB Jul 21, 07:15 UTCJul 21, 09:55 UTC2h 40m
2026-07-20 TKJ189 - Jul 20, 19:25 UTCJul 21, 03:20 UTC7h 54m
2026-07-20 TKJ5263 TZX → ESB Jul 20, 16:20 UTCJul 20, 17:35 UTC1h 15m
2026-07-20 TKJ5262 ESB → TZX Jul 20, 14:05 UTCJul 20, 15:10 UTC1h 5m
2026-07-20 TKJ4QU - Jul 20, 10:35 UTCJul 20, 12:35 UTC2h 0m
2026-07-20 TKJ15J GZT → ESB Jul 20, 06:15 UTCJul 20, 08:30 UTC2h 15m
2026-07-19 TKJ190 JED → SAW Jul 19, 19:30 UTCJul 20, 03:45 UTC8h 15m
2026-07-19 TKJ5243 - Jul 19, 16:45 UTCJul 19, 17:25 UTC40m
2026-07-19 TKJ5242 - Jul 19, 14:45 UTCJul 19, 15:15 UTC30m
2026-07-19 TKJ4QU - Jul 19, 10:55 UTCJul 19, 12:45 UTC1h 50m
2026-07-19 TKJ15J GZT → ESB Jul 19, 06:55 UTCJul 19, 09:00 UTC2h 5m
2026-07-18 TKJ5002 BER → SAW Jul 18, 18:40 UTCJul 18, 21:30 UTC2h 50m
2026-07-18 TKJ5000 SAW → OSR Jul 18, 13:55 UTCJul 18, 17:10 UTC3h 15m
2026-07-18 TKJ2YP - Jul 18, 11:00 UTCJul 18, 11:50 UTC50m
2026-07-18 TKJ6JL - Jul 18, 07:35 UTCJul 18, 08:15 UTC40m
2026-07-17 TKJ1DE AYT → SAW Jul 17, 21:25 UTCJul 18, 03:00 UTC5h 36m
2026-07-17 TKJ9SC - Jul 17, 16:34 UTCJul 17, 19:35 UTC3h 0m
2026-07-17 TKJ9CK - Jul 17, 11:25 UTCJul 17, 14:44 UTC3h 20m
2026-07-17 TKJ3JY - Jul 17, 07:25 UTCJul 17, 08:25 UTC1h 0m
2026-07-17 TKJ8EB - Jul 17, 04:54 UTCJul 17, 05:45 UTC50m
2026-07-16 TKJ8RE - Jul 16, 19:14 UTCJul 16, 20:15 UTC1h 0m
2026-07-16 TKJ6MD - Jul 16, 16:55 UTCJul 16, 17:30 UTC35m
2026-07-16 TKJ1FZ - Jul 16, 11:30 UTCJul 16, 14:20 UTC2h 50m
2026-07-16 TKJ9XD - Jul 16, 06:15 UTCJul 16, 09:40 UTC3h 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-LUI page for operator, model, and routing details .

Mode-S 4BB2A9 frequently asked

What is Mode-S code 4BB2A9?
4BB2A9 is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-LUI.
Where is Mode-S 4BB2A9 registered?
Mode-S code 4BB2A9 is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BB2A9 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:10 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BB2A9, octal 22731251, decimal 4,960,937.
What flights does 4BB2A9 operate?
Mode-S 4BB2A9 has broadcast 20 distinct callsigns, including TKJ9SE, TKJ5CU, TKJ9CK, TKJ9SC, TKJ6VP.