Apparatus

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sensors Mode-S transponder

4BAA44

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-JRD · AIRBUS A-321

Hex
4BAA44
Octal
22725104
Decimal
4,958,788
Country
TR
Tail
TC-JRD
Type
A321
No current signal · last broadcast 2d ago
Flights observed
102
Distinct callsigns
20
Country
TR
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S 4BAA44.

Country allocation

The ICAO 24-bit address 4BAA44 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
THY2NC Turkish Airlines 5 2026-05-27
THY4HA Turkish Airlines 4 2026-04-16
THY6DT Turkish Airlines 3 2026-05-14
THY1SM Turkish Airlines 3 2026-05-02
THY1QU Turkish Airlines 3 2026-05-14
THY9PJ Turkish Airlines 2 2026-04-17
THY9JC Turkish Airlines 2 2026-04-16
THY8WY Turkish Airlines 2 2026-05-25
THY7ZV - 2 2026-04-13
THY6VH Turkish Airlines 2 2026-04-25
THY6948 - 2 2026-05-08
THY5PB Turkish Airlines 2 2026-05-12
THY5MG Turkish Airlines 2 2026-05-27
THY5BF Turkish Airlines 2 2026-05-27
THY4TJ Turkish Airlines 2 2026-04-30
THY4HN Turkish Airlines 2 2026-05-12
THY3VM Turkish Airlines 2 2026-04-17
THY3RB Turkish Airlines 2 2026-04-23
THY3AR Turkish Airlines 2 2026-05-27
THY2VB - 2 2026-04-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-27 THY5MG MSR → IST May 27, 15:15 UTCMay 27, 16:15 UTC1h 0m
2026-05-27 THY5BF LGW → IST May 27, 12:40 UTCMay 27, 13:35 UTC55m
2026-05-27 THY2NC MSR → IST May 27, 10:00 UTCMay 27, 10:10 UTC10m
2026-05-27 THY2NC MSR → IST May 27, 08:40 UTCMay 27, 09:15 UTC35m
2026-05-27 THY3AR VKO → IST May 27, 05:45 UTCMay 27, 05:55 UTC10m
2026-05-25 THY5FL TZX → IST May 25, 22:44 UTCMay 25, 23:19 UTC35m
2026-05-25 THY8WY IST → DLM May 25, 21:19 UTCMay 25, 21:30 UTC10m
2026-05-25 THY8WY IST → DLM May 25, 20:15 UTCMay 25, 20:24 UTC10m
2026-05-22 THY2NC MSR → IST May 22, 09:55 UTCMay 22, 10:10 UTC15m
2026-05-22 THY2NC MSR → IST May 22, 05:50 UTCMay 22, 09:10 UTC3h 20m
2026-05-21 THY2NC MSR → IST May 21, 10:10 UTCMay 21, 10:20 UTC10m
2026-05-21 THY3AR VKO → IST May 21, 05:55 UTCMay 21, 09:20 UTC3h 25m
2026-05-20 THY9TJ IST → DUS May 20, 06:55 UTCMay 20, 07:35 UTC40m
2026-05-20 THY4ND VCE → ISL May 20, 04:55 UTCMay 20, 05:45 UTC50m
2026-05-19 THY3FZ PRG → IST May 19, 10:35 UTCMay 19, 11:50 UTC1h 15m
2026-05-19 THY4BQ - May 19, 07:45 UTCMay 19, 08:45 UTC1h 0m
2026-05-14 THY1QU IST → BHX May 14, 11:05 UTCMay 14, 11:40 UTC35m
2026-05-14 THY6DT IST → AYT May 14, 08:50 UTCMay 14, 09:30 UTC40m
2026-05-14 THY7GJ TBS → IST May 14, 02:50 UTCMay 14, 04:00 UTC1h 10m
2026-05-14 THY8YA IST → TBS May 14, 00:35 UTCMay 14, 00:50 UTC15m
2026-05-13 THY1GH IST → VKO May 13, 08:40 UTCMay 13, 17:10 UTC8h 30m
2026-05-12 THY2EP CLJ → IST May 12, 18:15 UTCMay 12, 19:25 UTC1h 10m
2026-05-12 THY98U MAD → IST May 12, 16:10 UTCMay 12, 17:00 UTC50m
2026-05-12 THY4HN DLM → IST May 12, 12:20 UTCMay 12, 12:45 UTC25m
2026-05-12 THY5PB IST → DLM May 12, 10:00 UTCMay 12, 10:40 UTC40m
2026-05-12 THY9QW DLM → IST May 12, 05:45 UTCMay 12, 06:25 UTC40m
2026-05-12 THY8SA IST → DLM May 12, 03:50 UTCMay 12, 04:25 UTC35m
2026-05-10 THY7FS IST → ESB May 10, 23:35 UTCMay 10, 23:44 UTC10m
2026-05-10 THY3SH BRU → IST May 10, 21:00 UTCMay 10, 21:10 UTC10m
2026-05-10 THY1QU IST → BHX May 10, 11:05 UTCMay 10, 11:55 UTC50m
2026-05-10 THY6DT IST → AYT May 10, 09:15 UTCMay 10, 09:45 UTC30m
2026-05-09 THY6996 - May 9, 08:15 UTCMay 9, 09:00 UTC45m
2026-05-08 THY8TW IST → FCO May 8, 20:50 UTCMay 9, 07:05 UTC10h 15m
2026-05-08 THY6995 - May 8, 19:25 UTCMay 8, 19:40 UTC15m
2026-05-08 THY5YG DLM → VKO May 8, 06:45 UTCMay 8, 17:55 UTC11h 10m
2026-05-08 THY6948 - May 8, 04:49 UTCMay 8, 05:20 UTC30m
2026-05-07 THY4HN DLM → IST May 7, 12:00 UTCMay 7, 12:40 UTC40m
2026-05-07 THY5PB IST → DLM May 7, 09:55 UTCMay 7, 10:35 UTC40m
2026-05-06 THY4GM AYT → LED May 6, 07:25 UTCMay 6, 07:35 UTC10m
2026-05-05 THY2BK - May 5, 03:25 UTCMay 5, 03:35 UTC10m
2026-05-04 THY4AQ - May 4, 11:50 UTCMay 4, 12:30 UTC40m
2026-05-04 THY8RJ - May 4, 09:15 UTCMay 4, 10:40 UTC1h 25m
2026-05-04 THY9LR ERZ → ESB May 4, 05:25 UTCMay 4, 06:15 UTC50m
2026-05-03 THY5KC IST → ALG May 3, 16:55 UTCMay 4, 02:30 UTC9h 35m
2026-05-02 THY1SM AYT → VKO May 2, 17:45 UTCMay 3, 05:20 UTC11h 34m
2026-05-01 THY1SM AYT → VKO May 1, 17:40 UTCMay 1, 21:25 UTC3h 45m
2026-04-30 THY4TJ MSR → IST Apr 30, 17:10 UTCMay 1, 02:55 UTC9h 45m
2026-04-28 THY2CU IST → HTY Apr 28, 17:30 UTCApr 29, 03:24 UTC9h 55m
2026-04-28 THY4KR IST → WAW Apr 28, 00:20 UTCApr 28, 03:15 UTC2h 55m
2026-04-27 THY4TJ MSR → IST Apr 27, 17:05 UTCApr 27, 21:30 UTC4h 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-JRD page for operator, model, and routing details .

Mode-S 4BAA44 frequently asked

What is Mode-S code 4BAA44?
4BAA44 is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-JRD.
Where is Mode-S 4BAA44 registered?
Mode-S code 4BAA44 is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BAA44 broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BAA44, octal 22725104, decimal 4,958,788.
What flights does 4BAA44 operate?
Mode-S 4BAA44 has broadcast 20 distinct callsigns, including THY2NC, THY4HA, THY6DT, THY1SM, THY1QU.