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 2h ago
Flights observed
208
Distinct callsigns
20
Country
TR
Last broadcast
2h 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
THY5YG - 7 2026-07-09
THY6DT - 5 2026-07-08
THY4HA - 5 2026-06-27
THY2NC Turkish Airlines 5 2026-05-27
THY1QU - 5 2026-07-08
THY9QW - 4 2026-07-06
THY9PJ Turkish Airlines 3 2026-06-25
THY8SA - 3 2026-06-27
THY5TV - 3 2026-07-05
THY4HN Turkish Airlines 3 2026-06-18
THY2QJ - 3 2026-06-25
THY1SM Turkish Airlines 3 2026-05-02
THY9JC Turkish Airlines 2 2026-04-16
THY9CM Turkish Airlines 2 2026-07-05
THY95M - 2 2026-07-11
THY8WY Turkish Airlines 2 2026-05-25
THY7ZV - 2 2026-04-13
THY7SJ Turkish Airlines 2 2026-06-19
THY7FS Turkish Airlines 2 2026-06-12
THY7ER - 2 2026-07-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 THY8SR - Jul 14, 09:00 UTCJul 14, 12:50 UTC3h 50m
2026-07-14 THY4SV - Jul 14, 03:20 UTCJul 14, 07:05 UTC3h 45m
2026-07-13 THY91S - Jul 13, 18:25 UTCJul 13, 19:05 UTC40m
2026-07-13 THY5085 - Jul 13, 07:15 UTCJul 13, 13:45 UTC6h 30m
2026-07-13 THY3MD - Jul 13, 03:50 UTCJul 13, 04:20 UTC30m
2026-07-12 THY7XV - Jul 12, 18:15 UTCJul 12, 19:01 UTC45m
2026-07-12 THY9HW - Jul 12, 16:05 UTCJul 12, 16:50 UTC45m
2026-07-12 THY1XT - Jul 12, 13:01 UTCJul 12, 13:55 UTC55m
2026-07-12 THY1NQ - Jul 12, 11:01 UTCJul 12, 11:45 UTC45m
2026-07-12 THY6FE - Jul 12, 03:50 UTCJul 12, 08:55 UTC5h 5m
2026-07-11 THY1HK - Jul 11, 18:20 UTCJul 11, 22:05 UTC3h 45m
2026-07-11 THY5SX - Jul 11, 15:50 UTCJul 11, 16:40 UTC50m
2026-07-11 THY6AC - Jul 11, 13:50 UTCJul 11, 14:35 UTC45m
2026-07-11 THY3DU - Jul 11, 10:25 UTCJul 11, 11:10 UTC45m
2026-07-11 THY95M - Jul 11, 07:45 UTCJul 11, 09:00 UTC1h 15m
2026-07-11 THY6TM - Jul 11, 01:10 UTCJul 11, 01:35 UTC25m
2026-07-10 THY98E - Jul 10, 19:15 UTCJul 11, 00:25 UTC5h 10m
2026-07-10 THY3DU - Jul 10, 10:20 UTCJul 10, 11:20 UTC1h 0m
2026-07-10 THY95M - Jul 10, 08:00 UTCJul 10, 09:00 UTC1h 0m
2026-07-10 THY3SW - Jul 10, 04:35 UTCJul 10, 05:25 UTC50m
2026-07-09 THY5YG - Jul 9, 17:05 UTCJul 10, 03:05 UTC10h 0m
2026-07-09 THY7PW - Jul 9, 05:45 UTCJul 9, 06:30 UTC45m
2026-07-08 THY7ER - Jul 8, 17:45 UTCJul 8, 18:35 UTC50m
2026-07-08 THY1FC - Jul 8, 15:15 UTCJul 8, 16:05 UTC50m
2026-07-08 THY1QU - Jul 8, 11:10 UTCJul 8, 12:05 UTC55m
2026-07-08 THY6DT - Jul 8, 08:55 UTCJul 8, 09:45 UTC50m
2026-07-08 THY1FE - Jul 8, 06:00 UTCJul 8, 06:55 UTC55m
2026-07-08 THY6WR - Jul 8, 03:55 UTCJul 8, 04:35 UTC40m
2026-07-07 THY1HK - Jul 7, 18:05 UTCJul 7, 22:00 UTC3h 55m
2026-07-07 THY4QR - Jul 7, 10:10 UTCJul 7, 14:10 UTC4h 0m
2026-07-07 THY2SK - Jul 7, 03:15 UTCJul 7, 07:00 UTC3h 45m
2026-07-06 THY9QW - Jul 6, 05:45 UTCJul 6, 06:35 UTC50m
2026-07-05 THY5TV - Jul 5, 17:45 UTCJul 5, 21:05 UTC3h 20m
2026-07-05 THY9CM BRE → IST Jul 5, 04:45 UTCJul 5, 08:10 UTC3h 25m
2026-07-04 THY5YG - Jul 4, 17:20 UTCJul 5, 03:05 UTC9h 45m
2026-07-04 THY9CM BRE → IST Jul 4, 04:50 UTCJul 4, 14:05 UTC9h 15m
2026-07-03 THY5TV CND → IST Jul 3, 17:30 UTCJul 4, 03:30 UTC10h 0m
2026-07-02 THY5YG - Jul 2, 17:25 UTCJul 3, 02:50 UTC9h 25m
2026-07-02 THY5016 - Jul 2, 06:41 UTCJul 2, 13:30 UTC6h 49m
2026-07-01 THY8KC - Jul 1, 23:25 UTCJul 2, 00:20 UTC55m
2026-07-01 THY7HL - Jul 1, 20:45 UTCJul 1, 21:35 UTC50m
2026-07-01 THY4GE - Jul 1, 18:15 UTCJul 1, 19:10 UTC55m
2026-07-01 THY2LX - Jul 1, 14:20 UTCJul 1, 15:05 UTC45m
2026-07-01 THY4CV - Jul 1, 12:20 UTCJul 1, 13:15 UTC55m
2026-07-01 THY5041 - Jul 1, 08:05 UTCJul 1, 10:10 UTC2h 5m
2026-07-01 THY5040 - Jul 1, 02:25 UTCJul 1, 03:25 UTC1h 0m
2026-06-30 THY5049 - Jun 30, 14:30 UTCJun 30, 20:20 UTC5h 50m
2026-06-30 THY5043 - Jun 30, 04:50 UTCJun 30, 11:30 UTC6h 40m
2026-06-30 THY5242 - Jun 30, 02:10 UTCJun 30, 02:50 UTC40m
2026-06-29 THY2CR - Jun 29, 10:44 UTCJun 29, 15:34 UTC4h 50m

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 2h 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 THY5YG, THY6DT, THY4HA, THY2NC, THY1QU.