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sensors Mode-S transponder

4BAA8B

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-JTK · AIRBUS A-321

Hex
4BAA8B
Octal
22725213
Decimal
4,958,859
Country
TR
Tail
TC-JTK
Type
A321
Broadcasting now · callsign THY3NU · 4,575 ft
Flights observed
323
Distinct callsigns
20
Country
TR
Last broadcast
58m ago

Current position

4BAA8B is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4BAA8B 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
THY3GL - 6 2026-07-05
THY9VR - 5 2026-07-09
THY8KV - 5 2026-07-09
THY5EA Turkish Airlines 5 2026-06-07
THY6JV - 4 2026-07-07
THY6BK - 4 2026-07-07
THY2EG Turkish Airlines 4 2026-06-07
THY9UH Turkish Airlines 3 2026-06-07
THY8JE Turkish Airlines 3 2026-05-18
THY8GQ Turkish Airlines 3 2026-05-11
THY8FB - 3 2026-07-04
THY7ZV Turkish Airlines 3 2026-05-24
THY7NU - 3 2026-07-04
THY6ZS Turkish Airlines 3 2026-07-05
THY6JP Turkish Airlines 3 2026-05-24
THY664 Turkish Airlines 3 2026-04-19
THY663 - 3 2026-04-19
THY5TK Turkish Airlines 3 2026-05-18
THY5BU Turkish Airlines 3 2026-05-20
THY4SE Turkish Airlines 3 2026-05-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-15 THY3NU - Jul 15, 05:30 UTCJul 15, 06:45 UTC1h 15m
2026-07-14 THY1SQ - Jul 14, 16:35 UTCJul 14, 19:25 UTC2h 50m
2026-07-14 THY4QR - Jul 14, 14:00 UTCJul 14, 14:25 UTC25m
2026-07-14 THY9HP - Jul 14, 10:15 UTCJul 14, 10:45 UTC30m
2026-07-13 THY8BC - Jul 13, 16:55 UTCJul 13, 20:05 UTC3h 10m
2026-07-13 THY2XW - Jul 13, 12:00 UTCJul 13, 15:40 UTC3h 40m
2026-07-13 THY55C - Jul 13, 09:40 UTCJul 13, 10:00 UTC20m
2026-07-13 THY55C - Jul 13, 08:20 UTCJul 13, 08:55 UTC35m
2026-07-13 THY1HM - Jul 13, 06:50 UTCJul 13, 06:55 UTC5m
2026-07-13 THY1HM - Jul 13, 05:45 UTCJul 13, 06:10 UTC25m
2026-07-12 THY6FV - Jul 12, 19:20 UTCJul 13, 02:10 UTC6h 50m
2026-07-12 THY68G - Jul 12, 16:55 UTCJul 12, 17:40 UTC45m
2026-07-12 THY2EV - Jul 12, 14:20 UTCJul 12, 15:15 UTC55m
2026-07-12 THY2589 - Jul 12, 10:45 UTCJul 12, 11:40 UTC55m
2026-07-12 THY2588 - Jul 12, 08:30 UTCJul 12, 09:15 UTC45m
2026-07-12 THY7LC - Jul 12, 04:35 UTCJul 12, 05:25 UTC50m
2026-07-11 THY5LT - Jul 11, 20:15 UTCJul 11, 21:10 UTC55m
2026-07-11 THY9TU - Jul 11, 16:55 UTCJul 11, 17:50 UTC55m
2026-07-11 THY9EH - Jul 11, 14:55 UTCJul 11, 15:35 UTC40m
2026-07-11 THY5FL - Jul 11, 10:20 UTCJul 11, 10:50 UTC30m
2026-07-11 THY5FL - Jul 11, 09:10 UTCJul 11, 09:40 UTC30m
2026-07-11 THY3299 - Jul 11, 07:15 UTCJul 11, 07:25 UTC10m
2026-07-11 THY3298 - Jul 11, 01:00 UTCJul 11, 06:35 UTC5h 35m
2026-07-10 THY8WY - Jul 10, 21:15 UTCJul 10, 21:20 UTC5m
2026-07-10 THY8WY - Jul 10, 20:05 UTCJul 10, 20:35 UTC30m
2026-07-10 THY2LG - Jul 10, 17:40 UTCJul 10, 18:10 UTC30m
2026-07-10 THY2LG - Jul 10, 16:30 UTCJul 10, 17:05 UTC35m
2026-07-10 THY6TP - Jul 10, 14:00 UTCJul 10, 15:15 UTC1h 15m
2026-07-10 THY7LX - Jul 10, 08:00 UTCJul 10, 09:10 UTC1h 10m
2026-07-10 THY8ES - Jul 10, 05:15 UTCJul 10, 06:15 UTC1h 0m
2026-07-09 THY8KV - Jul 9, 19:00 UTCJul 9, 20:10 UTC1h 10m
2026-07-09 THY9VR - Jul 9, 16:20 UTCJul 9, 17:30 UTC1h 10m
2026-07-09 THY17V - Jul 9, 13:05 UTCJul 9, 14:35 UTC1h 30m
2026-07-09 THY5TD - Jul 9, 10:35 UTCJul 9, 11:50 UTC1h 15m
2026-07-09 THY5HQ - Jul 9, 05:45 UTCJul 9, 08:15 UTC2h 30m
2026-07-08 THY6CN - Jul 8, 17:05 UTCJul 8, 20:05 UTC3h 0m
2026-07-08 THY3JW - Jul 8, 14:00 UTCJul 8, 14:55 UTC55m
2026-07-08 THY9DX - Jul 8, 11:45 UTCJul 8, 12:45 UTC1h 0m
2026-07-07 THY5AQ - Jul 7, 17:20 UTCJul 7, 19:55 UTC2h 35m
2026-07-07 THY3TW - Jul 7, 13:05 UTCJul 7, 15:50 UTC2h 45m
2026-07-07 THY6BK - Jul 7, 09:15 UTCJul 7, 10:00 UTC45m
2026-07-07 THY6JV - Jul 7, 07:20 UTCJul 7, 07:55 UTC35m
2026-07-06 THY42W - Jul 6, 17:20 UTCJul 6, 20:35 UTC3h 15m
2026-07-06 THY7HQ IST → VLC Jul 6, 12:25 UTCJul 6, 15:50 UTC3h 25m
2026-07-06 THY77T - Jul 6, 08:05 UTCJul 6, 10:30 UTC2h 25m
2026-07-06 THY88H - Jul 6, 04:10 UTCJul 6, 06:05 UTC1h 55m
2026-07-05 THY3GL - Jul 5, 20:15 UTCJul 5, 20:35 UTC20m
2026-07-05 THY3GL - Jul 5, 18:50 UTCJul 5, 19:40 UTC50m
2026-07-05 THY6ZS IST → BUS Jul 5, 16:25 UTCJul 5, 16:55 UTC30m
2026-07-05 THY0AG - Jul 5, 11:20 UTCJul 5, 14:25 UTC3h 5m

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

Mode-S 4BAA8B frequently asked

What is Mode-S code 4BAA8B?
4BAA8B is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-JTK.
Where is Mode-S 4BAA8B registered?
Mode-S code 4BAA8B is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BAA8B broadcasting right now?
Yes. Mode-S 4BAA8B is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BAA8B, octal 22725213, decimal 4,958,859.
What flights does 4BAA8B operate?
Mode-S 4BAA8B has broadcast 20 distinct callsigns, including THY3GL, THY9VR, THY8KV, THY5EA, THY6JV.