Apparatus

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sensors Mode-S transponder

4BAA4F

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-JRO · AIRBUS A-321

Hex
4BAA4F
Octal
22725117
Decimal
4,958,799
Country
TR
Tail
TC-JRO
Type
A321
No current signal · last broadcast 18d ago
Flights observed
98
Distinct callsigns
20
Country
TR
Last broadcast
18d ago

Last known position

Most recent position reported by Mode-S 4BAA4F.

Country allocation

The ICAO 24-bit address 4BAA4F 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
THY9TJ Turkish Airlines 3 2026-05-03
THY5MG - 3 2026-04-15
THY4ND Turkish Airlines 3 2026-05-03
THY3RB Turkish Airlines 3 2026-05-11
THY7LR Turkish Airlines 2 2026-04-30
THY7JD - 2 2026-04-14
THY640 Turkish Airlines 2 2026-04-17
THY639 Turkish Airlines 2 2026-04-17
THY5EA Turkish Airlines 2 2026-05-07
THY5BF - 2 2026-04-15
THY4VX Turkish Airlines 2 2026-04-22
THY42W - 2 2026-04-13
THY3WQ - 2 2026-04-13
THY3JW Turkish Airlines 2 2026-05-11
THY322 Turkish Airlines 2 2026-05-04
THY2VS Turkish Airlines 2 2026-05-09
THY2EG Turkish Airlines 2 2026-05-07
THY1WS Turkish Airlines 2 2026-04-22
THY1TH Turkish Airlines 2 2026-04-18
THY143 - 2 2026-04-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-11 THY3JW AYT → IST May 11, 13:55 UTCMay 11, 14:50 UTC55m
2026-05-11 THY3RB IST → AYT May 11, 08:15 UTCMay 11, 08:45 UTC30m
2026-05-10 THY2RE IST → PRN May 10, 19:30 UTCMay 10, 20:35 UTC1h 5m
2026-05-10 THY8DT - May 10, 17:15 UTCMay 10, 18:05 UTC50m
2026-05-09 THY67W BLQ → IST May 9, 17:45 UTCMay 9, 19:25 UTC1h 40m
2026-05-09 THY5ST TGD → IST May 9, 14:25 UTCMay 9, 16:40 UTC2h 15m
2026-05-09 THY2VS IST → ESB May 9, 10:15 UTCMay 9, 10:50 UTC35m
2026-05-09 THY3RB IST → AYT May 9, 08:15 UTCMay 9, 08:55 UTC40m
2026-05-07 THY1ZY TZX → IST May 7, 18:25 UTCMay 7, 18:55 UTC30m
2026-05-07 THY6GR IST → SOF May 7, 16:25 UTCMay 7, 16:50 UTC25m
2026-05-07 THY5EA BEG → IST May 7, 07:40 UTCMay 7, 08:45 UTC1h 5m
2026-05-07 THY2EG IST → LJU May 7, 05:15 UTCMay 7, 06:25 UTC1h 10m
2026-05-06 THY664 TUN → IST May 6, 16:40 UTCMay 6, 18:30 UTC1h 49m
2026-05-06 THY663 IST → TUN May 6, 12:45 UTCMay 6, 14:55 UTC2h 10m
2026-05-06 THY2CV SJJ → IST May 6, 07:15 UTCMay 6, 08:20 UTC1h 5m
2026-05-06 THY4YJ IST → SJJ May 6, 04:45 UTCMay 6, 06:00 UTC1h 15m
2026-05-05 THY4922 DUS → IST May 5, 18:35 UTCMay 5, 21:01 UTC2h 25m
2026-05-05 THY4921 IST → DUS May 5, 14:20 UTCMay 5, 17:05 UTC2h 45m
2026-05-04 THY322 IST → ASB May 4, 18:20 UTCMay 5, 00:50 UTC6h 31m
2026-05-04 THY322 IST → ASB May 4, 17:30 UTCMay 4, 17:40 UTC10m
2026-05-04 THY3JW AYT → IST May 4, 13:50 UTCMay 4, 14:40 UTC50m
2026-05-04 THY9DX IST → EAP May 4, 11:35 UTCMay 4, 12:25 UTC50m
2026-05-03 THY9TF AMS → SAW May 3, 13:15 UTCMay 3, 15:00 UTC1h 45m
2026-05-03 THY1GP IST → BLQ May 3, 09:45 UTCMay 3, 11:45 UTC2h 0m
2026-05-03 THY9TJ IST → EBL May 3, 07:00 UTCMay 3, 07:40 UTC40m
2026-05-03 THY4ND VCE → ISL May 3, 04:45 UTCMay 3, 05:45 UTC1h 0m
2026-05-02 THY2BQ PRN → IST May 2, 07:45 UTCMay 2, 08:30 UTC45m
2026-05-02 THY90L IST → PRN May 2, 05:25 UTCMay 2, 06:05 UTC40m
2026-05-01 THY6DF CPH → IST May 1, 17:25 UTCMay 1, 19:50 UTC2h 25m
2026-05-01 THY5NU IST → CPH May 1, 13:40 UTCMay 1, 16:10 UTC2h 30m
2026-05-01 THY2VS IST → ESB May 1, 09:55 UTCMay 1, 10:40 UTC45m
2026-05-01 THY3RB IST → AYT May 1, 07:55 UTCMay 1, 08:15 UTC20m
2026-04-30 THY7LR IST → HRG Apr 30, 23:20 UTCMay 1, 05:15 UTC5h 55m
2026-04-30 THY2UH MAN → IST Apr 30, 16:35 UTCApr 30, 17:00 UTC25m
2026-04-30 THY5RA GVA → IST Apr 30, 13:35 UTCApr 30, 14:40 UTC1h 5m
2026-04-30 THY5EA BEG → IST Apr 30, 07:30 UTCApr 30, 08:30 UTC1h 0m
2026-04-30 THY2EG IST → LJU Apr 30, 05:10 UTCApr 30, 06:25 UTC1h 15m
2026-04-29 THY144 IST → RUH Apr 29, 01:20 UTCApr 29, 01:30 UTC10m
2026-04-28 THY9TJ IST → EBL Apr 28, 06:45 UTCApr 28, 07:20 UTC35m
2026-04-28 THY4ND VCE → ISL Apr 28, 04:55 UTCApr 28, 05:40 UTC45m
2026-04-27 THY6JP LJU → IST Apr 27, 14:15 UTCApr 27, 15:15 UTC1h 0m
2026-04-27 THY7ZV ZRH → IST Apr 27, 11:50 UTCApr 27, 13:00 UTC1h 10m
2026-04-27 THY7RN BCN → IST Apr 27, 06:30 UTCApr 27, 09:10 UTC2h 40m
2026-04-26 THY5RD CDG → IST Apr 26, 18:05 UTCApr 26, 21:05 UTC3h 0m
2026-04-26 THY7GF HAM → IST Apr 26, 13:25 UTCApr 26, 15:45 UTC2h 20m
2026-04-26 THY9RZ IST → HAM Apr 26, 09:00 UTCApr 26, 11:40 UTC2h 40m
2026-04-25 THY7LR IST → HRG Apr 25, 23:30 UTCApr 26, 05:10 UTC5h 40m
2026-04-25 THY3AN SOF → IST Apr 25, 13:00 UTCApr 25, 13:30 UTC30m
2026-04-25 THY9UH SOF → IST Apr 25, 11:05 UTCApr 25, 11:35 UTC30m
2026-04-25 THY5BE IST → AMS Apr 25, 07:00 UTCApr 25, 07:40 UTC40m

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

Mode-S 4BAA4F frequently asked

What is Mode-S code 4BAA4F?
4BAA4F is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-JRO.
Where is Mode-S 4BAA4F registered?
Mode-S code 4BAA4F is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BAA4F broadcasting right now?
No active broadcast right now. Last signal was 18d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BAA4F, octal 22725117, decimal 4,958,799.
What flights does 4BAA4F operate?
Mode-S 4BAA4F has broadcast 20 distinct callsigns, including THY9TJ, THY5MG, THY4ND, THY3RB, THY7LR.