Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

4BAA81

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-JTA · AIRBUS A-321

Hex
4BAA81
Octal
22725201
Decimal
4,958,849
Country
TR
Tail
TC-JTA
Type
A321
Broadcasting now · callsign THY4993 · 34,025 ft
Flights observed
134
Distinct callsigns
20
Country
TR
Last broadcast
2h ago

Current position

4BAA81 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4BAA81 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
THY1GH Turkish Airlines 13 2026-05-20
THY1HC Turkish Airlines 5 2026-05-19
THY8TW Turkish Airlines 4 2026-05-03
THY9DX Turkish Airlines 3 2026-05-11
THY4CW - 3 2026-05-22
THY3CE Turkish Airlines 3 2026-05-15
THY9UH Turkish Airlines 2 2026-05-10
THY9GL Turkish Airlines 2 2026-05-30
THY8RZ Turkish Airlines 2 2026-05-30
THY8JE Turkish Airlines 2 2026-04-16
THY8BN Turkish Airlines 2 2026-05-22
THY6ZS Turkish Airlines 2 2026-04-22
THY6NJ Turkish Airlines 2 2026-05-25
THY5TK Turkish Airlines 2 2026-04-16
THY439 Turkish Airlines 2 2026-05-17
THY3NU Turkish Airlines 2 2026-05-25
THY3GL Turkish Airlines 2 2026-04-22
THY3AN Turkish Airlines 2 2026-05-10
THY2ZN Turkish Airlines 2 2026-05-23
THY1SQ Turkish Airlines 2 2026-05-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 THY4992 - May 30, 13:15 UTCMay 30, 13:45 UTC30m
2026-05-30 THY9GL SSH → IST May 30, 08:45 UTCMay 30, 10:55 UTC2h 10m
2026-05-30 THY8RZ IST → SSH May 30, 04:50 UTCMay 30, 06:45 UTC1h 55m
2026-05-29 THY8RA ESB → IST May 29, 20:15 UTCMay 29, 21:05 UTC50m
2026-05-29 THY7NX - May 29, 18:25 UTCMay 29, 18:40 UTC15m
2026-05-29 THY4VX ADB → IST May 29, 15:30 UTCMay 29, 16:10 UTC40m
2026-05-29 THY1WS IST → ADB May 29, 13:35 UTCMay 29, 14:15 UTC40m
2026-05-29 THY4DT BSL → IST May 29, 08:55 UTCMay 29, 11:20 UTC2h 25m
2026-05-29 THY52U IST → BSL May 29, 05:00 UTCMay 29, 07:45 UTC2h 45m
2026-05-28 THY2JK CAI → IST May 28, 03:15 UTCMay 28, 04:50 UTC1h 35m
2026-05-27 THY4VL IST → CAI May 27, 23:05 UTCMay 28, 00:45 UTC1h 40m
2026-05-26 THY6GT CDG → IST May 26, 22:05 UTCMay 26, 22:15 UTC10m
2026-05-26 THY8ZN - May 26, 18:45 UTCMay 26, 18:55 UTC10m
2026-05-25 THY4AF TIA → IST May 25, 18:05 UTCMay 25, 19:10 UTC1h 5m
2026-05-25 THY5DQ IST → TIA May 25, 15:35 UTCMay 25, 16:25 UTC50m
2026-05-25 THY6NJ IST → MXP May 25, 09:45 UTCMay 25, 13:05 UTC3h 20m
2026-05-25 THY3NU IST → GNY May 25, 05:05 UTCMay 25, 07:25 UTC2h 20m
2026-05-24 THY1SQ IST → BRI May 24, 16:35 UTCMay 24, 19:05 UTC2h 30m
2026-05-24 THY6NJ IST → MXP May 24, 12:50 UTCMay 24, 13:00 UTC10m
2026-05-24 THY3NU IST → GNY May 24, 05:10 UTCMay 24, 07:35 UTC2h 25m
2026-05-23 THY1SQ IST → BRI May 23, 16:30 UTCMay 23, 19:05 UTC2h 35m
2026-05-23 THY4979 NAV → IST May 23, 12:35 UTCMay 23, 12:45 UTC10m
2026-05-23 THY4978 IST → DIY May 23, 09:35 UTCMay 23, 09:45 UTC10m
2026-05-23 THY2ZN MUC → IST May 23, 05:40 UTCMay 23, 07:50 UTC2h 10m
2026-05-22 THY4CW - May 22, 17:15 UTCMay 22, 19:15 UTC2h 0m
2026-05-22 THY8BN ERZ → IST May 22, 14:50 UTCMay 22, 15:00 UTC10m
2026-05-22 THY8BN ERZ → IST May 22, 13:45 UTCMay 22, 14:10 UTC25m
2026-05-22 THY4PW TRN → IST May 22, 11:50 UTCMay 22, 12:10 UTC20m
2026-05-22 THY7LX ECN → IST May 22, 07:55 UTCMay 22, 09:00 UTC1h 5m
2026-05-22 THY8ES IST → TGD May 22, 05:20 UTCMay 22, 06:25 UTC1h 5m
2026-05-21 THY7QK HTY → IST May 21, 15:30 UTCMay 21, 19:25 UTC3h 55m
2026-05-20 THY1GH IST → VKO May 20, 07:00 UTCMay 20, 15:45 UTC8h 45m
2026-05-19 THY1HC IST → VKO May 19, 17:40 UTCMay 20, 02:05 UTC8h 25m
2026-05-19 THY1GH IST → VKO May 19, 07:00 UTCMay 19, 15:20 UTC8h 20m
2026-05-17 THY8HU SAW → AYT May 17, 19:05 UTCMay 17, 20:10 UTC1h 5m
2026-05-17 THY439 IST → DBV May 17, 16:45 UTCMay 17, 18:10 UTC1h 25m
2026-05-16 THY6MG BGG → IST May 16, 17:15 UTCMay 16, 19:35 UTC2h 20m
2026-05-16 THY3NV IST → FRA May 16, 12:50 UTCMay 16, 15:25 UTC2h 35m
2026-05-15 THY3CE VKO → IST May 15, 15:05 UTCMay 15, 17:00 UTC1h 55m
2026-05-15 THY1GH IST → VKO May 15, 10:45 UTCMay 15, 10:55 UTC10m
2026-05-15 THY1GH IST → VKO May 15, 07:10 UTCMay 15, 09:40 UTC2h 30m
2026-05-13 THY1HC IST → VKO May 13, 17:45 UTCMay 14, 02:10 UTC8h 25m
2026-05-13 THY6BK HAM → IST May 13, 09:10 UTCMay 13, 09:35 UTC25m
2026-05-13 THY6JV BER → IST May 13, 07:25 UTCMay 13, 07:50 UTC25m
2026-05-12 THY5YA - May 12, 04:40 UTCMay 12, 05:20 UTC40m
2026-05-11 THY9DX IST → EAP May 11, 11:45 UTCMay 11, 12:30 UTC45m
2026-05-10 THY5BU SJJ → IST May 10, 18:55 UTCMay 10, 20:00 UTC1h 5m
2026-05-10 THY4SE IST → SJJ May 10, 16:20 UTCMay 10, 17:34 UTC1h 15m
2026-05-10 THY3AN SOF → IST May 10, 13:05 UTCMay 10, 13:35 UTC30m
2026-05-10 THY9UH SOF → IST May 10, 11:10 UTCMay 10, 11:40 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-JTA page for operator, model, and routing details .

Mode-S 4BAA81 frequently asked

What is Mode-S code 4BAA81?
4BAA81 is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-JTA.
Where is Mode-S 4BAA81 registered?
Mode-S code 4BAA81 is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BAA81 broadcasting right now?
Yes. Mode-S 4BAA81 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BAA81, octal 22725201, decimal 4,958,849.
What flights does 4BAA81 operate?
Mode-S 4BAA81 has broadcast 20 distinct callsigns, including THY1GH, THY1HC, THY8TW, THY9DX, THY4CW.