Apparatus

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sensors Mode-S transponder

4BB281

ICAO 24-bit transponder address · allocated to Turkey

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

Hex
4BB281
Octal
22731201
Decimal
4,960,897
Country
TR
Tail
TC-LTA
Type
A21N
Broadcasting now · callsign THY2WM · 24,100 ft
Flights observed
180
Distinct callsigns
20
Country
TR
Last broadcast
2h ago

Current position

4BB281 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4BB281 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
THY5QF - 3 2026-04-13
THY3XJ Turkish Airlines 3 2026-05-17
THY3ED Turkish Airlines 3 2026-05-11
THY355 Turkish Airlines 3 2026-04-22
THY2CP Turkish Airlines 3 2026-05-06
THY9QD Turkish Airlines 2 2026-05-23
THY9JL Turkish Airlines 2 2026-04-14
THY8QD Turkish Airlines 2 2026-04-29
THY8EM Turkish Airlines 2 2026-05-26
THY7UF Turkish Airlines 2 2026-05-23
THY7TE Turkish Airlines 2 2026-05-08
THY7QZ Turkish Airlines 2 2026-05-25
THY7JD Turkish Airlines 2 2026-05-25
THY77T Turkish Airlines 2 2026-05-18
THY70G Turkish Airlines 2 2026-05-22
THY6XJ Turkish Airlines 2 2026-05-08
THY6RB Turkish Airlines 2 2026-04-20
THY5VH Turkish Airlines 2 2026-04-26
THY5NX - 2 2026-05-11
THY5EH Turkish Airlines 2 2026-05-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 THY577 ASM → IST May 29, 16:00 UTCMay 30, 02:10 UTC10h 10m
2026-05-29 THY6BA IST → VIE May 29, 12:25 UTCMay 29, 14:20 UTC1h 55m
2026-05-29 THY9EX CDG → IST May 29, 08:50 UTCMay 29, 11:05 UTC2h 15m
2026-05-29 THY2JK CAI → IST May 29, 03:10 UTCMay 29, 04:50 UTC1h 40m
2026-05-28 THY4VL IST → CAI May 28, 23:05 UTCMay 29, 00:40 UTC1h 35m
2026-05-28 THY8HU SAW → AYT May 28, 19:10 UTCMay 28, 20:35 UTC1h 25m
2026-05-28 THY439 IST → DBV May 28, 16:25 UTCMay 28, 18:00 UTC1h 35m
2026-05-28 THY17V - May 28, 13:25 UTCMay 28, 14:45 UTC1h 20m
2026-05-28 THY5TD AYT → BER May 28, 10:30 UTCMay 28, 11:50 UTC1h 20m
2026-05-28 THY3WQ BUD → IST May 28, 07:15 UTCMay 28, 08:50 UTC1h 35m
2026-05-28 THY75P - May 28, 04:30 UTCMay 28, 06:00 UTC1h 30m
2026-05-27 THY3KY IST → ADB May 27, 17:00 UTCMay 27, 19:20 UTC2h 20m
2026-05-27 THY8UG ADA → BEY May 27, 13:05 UTCMay 27, 15:40 UTC2h 35m
2026-05-27 THY29B AYT → IST May 27, 09:05 UTCMay 27, 09:25 UTC20m
2026-05-27 THY5CJ NUE → IST May 27, 07:05 UTCMay 27, 07:55 UTC50m
2026-05-26 THY8EM SZF → IST May 26, 20:40 UTCMay 26, 21:00 UTC20m
2026-05-26 THY8EM SZF → IST May 26, 19:50 UTCMay 26, 20:00 UTC10m
2026-05-26 THY9XJ - May 26, 17:50 UTCMay 26, 17:59 UTC10m
2026-05-26 THY6PM ADB → IST May 26, 13:10 UTCMay 26, 13:54 UTC45m
2026-05-26 THY5RE IST → ADB May 26, 11:20 UTCMay 26, 11:54 UTC35m
2026-05-26 THY1WR - May 26, 08:54 UTCMay 26, 09:04 UTC10m
2026-05-26 THY5ER IST → CDG May 26, 05:45 UTCMay 26, 05:54 UTC10m
2026-05-26 THY4VS TBS → IST May 26, 00:39 UTCMay 26, 00:54 UTC15m
2026-05-25 THY4VS TBS → IST May 25, 22:55 UTCMay 26, 00:04 UTC1h 10m
2026-05-25 THY7JD IST → BUS May 25, 20:40 UTCMay 25, 21:04 UTC25m
2026-05-25 THY7JD IST → BUS May 25, 19:15 UTCMay 25, 19:25 UTC10m
2026-05-25 THY7QZ IST → IST May 25, 15:30 UTCMay 25, 15:40 UTC10m
2026-05-25 THY7QZ IST → IST May 25, 13:45 UTCMay 25, 14:45 UTC1h 0m
2026-05-25 THY3BJ IST → MAN May 25, 11:45 UTCMay 25, 12:35 UTC50m
2026-05-25 THY39P BRU → IST May 25, 05:30 UTCMay 25, 08:35 UTC3h 5m
2026-05-24 THY1EF IST → BRU May 24, 16:30 UTCMay 24, 19:20 UTC2h 50m
2026-05-24 THY8RF VLC → IST May 24, 09:25 UTCMay 24, 12:35 UTC3h 10m
2026-05-24 THY8CX ESB → DUS May 24, 04:20 UTCMay 24, 07:25 UTC3h 5m
2026-05-23 THY7UF IST → ADB May 23, 16:15 UTCMay 23, 20:05 UTC3h 50m
2026-05-23 THY2UK IST → ADA May 23, 11:10 UTCMay 23, 14:55 UTC3h 45m
2026-05-23 THY9QD IST → SZF May 23, 05:40 UTCMay 23, 09:05 UTC3h 25m
2026-05-22 THY70G IST → LHR May 22, 18:10 UTCMay 22, 21:25 UTC3h 15m
2026-05-22 THY2SA LGW → IST May 22, 12:55 UTCMay 22, 15:25 UTC2h 30m
2026-05-22 THY9CH IST → GVA May 22, 09:00 UTCMay 22, 11:40 UTC2h 40m
2026-05-21 THY6890 LHR → VKO May 21, 22:25 UTCMay 21, 23:30 UTC1h 5m
2026-05-21 THY439 IST → DBV May 21, 16:30 UTCMay 21, 18:30 UTC2h 0m
2026-05-21 THY9UT IST → BUD May 21, 13:10 UTCMay 21, 14:05 UTC55m
2026-05-21 THY4QS IST → HTY May 21, 11:00 UTCMay 21, 11:40 UTC40m
2026-05-21 THY9QD IST → SZF May 21, 05:35 UTCMay 21, 08:35 UTC3h 0m
2026-05-20 THY70G IST → LHR May 20, 17:45 UTCMay 20, 21:05 UTC3h 20m
2026-05-20 THY6JP LJU → IST May 20, 14:30 UTCMay 20, 15:35 UTC1h 5m
2026-05-20 THY7ZV ZRH → IST May 20, 12:20 UTCMay 20, 13:25 UTC1h 5m
2026-05-20 THY145 RUH → IST May 20, 07:10 UTCMay 20, 07:20 UTC10m
2026-05-19 THY144 IST → RUH May 19, 23:00 UTCMay 20, 00:50 UTC1h 50m
2026-05-19 THY8SB IST → NCE May 19, 14:35 UTCMay 19, 17:30 UTC2h 55m

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

Mode-S 4BB281 frequently asked

What is Mode-S code 4BB281?
4BB281 is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-LTA.
Where is Mode-S 4BB281 registered?
Mode-S code 4BB281 is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BB281 broadcasting right now?
Yes. Mode-S 4BB281 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BB281, octal 22731201, decimal 4,960,897.
What flights does 4BB281 operate?
Mode-S 4BB281 has broadcast 20 distinct callsigns, including THY5QF, THY3XJ, THY3ED, THY355, THY2CP.