Apparatus

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sensors Mode-S transponder

4BAA56

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-JRV · AIRBUS A-321

Hex
4BAA56
Octal
22725126
Decimal
4,958,806
Country
TR
Tail
TC-JRV
Type
A321
Broadcasting now · callsign THY1SL · 33,050 ft
Flights observed
129
Distinct callsigns
20
Country
TR
Last broadcast
10m ago

Current position

4BAA56 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4BAA56 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
THY8TW Turkish Airlines 15 2026-05-31
THY3DN Turkish Airlines 4 2026-05-04
THY1JR Turkish Airlines 3 2026-05-03
THY1HC - 3 2026-07-13
THY1GH - 3 2026-07-13
THY9EX Turkish Airlines 2 2026-04-17
THY8CD Turkish Airlines 2 2026-05-02
THY7SP - 2 2026-04-13
THY6BA Turkish Airlines 2 2026-04-17
THY5YA - 2 2026-06-02
THY4UA Turkish Airlines 2 2026-06-01
THY1TU - 2 2026-04-13
THY1SL - 2 2026-07-14
THY9YZ - 1 2026-07-11
THY9VT Turkish Airlines 1 2026-04-23
THY9VR - 1 2026-07-06
THY9JC Turkish Airlines 1 2026-04-27
THY9GQ - 1 2026-07-10
THY9EJ Turkish Airlines 1 2026-05-06
THY9BX Turkish Airlines 1 2026-05-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 THY1SL - Jul 14, 05:30 UTCJul 14, 07:30 UTC2h 0m
2026-07-13 THY1HC - Jul 13, 17:35 UTCJul 14, 02:40 UTC9h 5m
2026-07-13 THY1GH - Jul 13, 07:15 UTCJul 13, 15:50 UTC8h 35m
2026-07-12 THY4MZ - Jul 12, 12:40 UTCJul 12, 16:20 UTC3h 40m
2026-07-11 THY3EZ - Jul 11, 22:01 UTCJul 12, 00:45 UTC2h 45m
2026-07-11 THY7JR - Jul 11, 17:00 UTCJul 11, 20:10 UTC3h 10m
2026-07-11 THY4FA - Jul 11, 09:40 UTCJul 11, 12:55 UTC3h 15m
2026-07-11 THY9YZ - Jul 11, 04:25 UTCJul 11, 08:01 UTC3h 35m
2026-07-10 THY4WS - Jul 10, 14:45 UTCJul 10, 19:00 UTC4h 15m
2026-07-10 THY9GQ - Jul 10, 12:35 UTCJul 10, 13:15 UTC40m
2026-07-10 THY2PL - Jul 10, 10:25 UTCJul 10, 11:05 UTC40m
2026-07-10 THY1950 - Jul 10, 06:00 UTCJul 10, 08:40 UTC2h 40m
2026-07-09 THY1949 - Jul 9, 16:55 UTCJul 9, 20:15 UTC3h 20m
2026-07-09 THY8CH - Jul 9, 13:20 UTCJul 9, 14:25 UTC1h 5m
2026-07-09 THY1MA - Jul 9, 11:10 UTCJul 9, 11:55 UTC45m
2026-07-08 THY2EP - Jul 8, 18:30 UTCJul 8, 19:45 UTC1h 15m
2026-07-08 THY98U - Jul 8, 16:05 UTCJul 8, 17:25 UTC1h 20m
2026-07-08 THY6NJ - Jul 8, 09:35 UTCJul 8, 13:05 UTC3h 30m
2026-07-08 THY3NU - Jul 8, 05:00 UTCJul 8, 07:15 UTC2h 15m
2026-07-07 THY1SQ - Jul 7, 16:25 UTCJul 7, 18:55 UTC2h 30m
2026-07-07 THY3HU - Jul 7, 11:55 UTCJul 7, 13:25 UTC1h 30m
2026-07-07 THY1SL - Jul 7, 05:40 UTCJul 7, 08:55 UTC3h 15m
2026-07-06 THY8KV - Jul 6, 19:00 UTCJul 6, 20:15 UTC1h 15m
2026-07-06 THY9VR - Jul 6, 16:35 UTCJul 6, 17:45 UTC1h 10m
2026-07-06 THY1GH - Jul 6, 06:20 UTCJul 6, 14:25 UTC8h 5m
2026-07-05 THY1HC - Jul 5, 17:35 UTCJul 6, 01:55 UTC8h 20m
2026-07-05 THY7AT DUS → IST Jul 5, 13:35 UTCJul 5, 15:30 UTC1h 55m
2026-07-05 THY40B - Jul 5, 09:50 UTCJul 5, 11:50 UTC2h 0m
2026-07-04 THY1HC - Jul 4, 17:35 UTCJul 5, 02:05 UTC8h 30m
2026-07-04 THY1GH - Jul 4, 06:55 UTCJul 4, 15:25 UTC8h 30m
2026-07-03 THY6947 - Jul 3, 22:20 UTCJul 3, 22:30 UTC10m
2026-07-03 THY6992 - Jul 3, 03:40 UTCJul 3, 04:20 UTC40m
2026-06-04 THY6978 - Jun 4, 22:45 UTCJun 4, 23:05 UTC20m
2026-06-04 THY4EK SAW → DUS Jun 4, 18:40 UTCJun 4, 20:20 UTC1h 40m
2026-06-04 THY2HU IST → BUD Jun 4, 16:05 UTCJun 4, 17:30 UTC1h 25m
2026-06-04 THY5UA WAW → IST Jun 4, 08:40 UTCJun 4, 10:40 UTC2h 0m
2026-06-04 THY7AH ONQ → IST Jun 4, 05:10 UTCJun 4, 07:00 UTC1h 50m
2026-06-03 THY6JP LJU → IST Jun 3, 14:55 UTCJun 3, 16:15 UTC1h 20m
2026-06-03 THY7ZV ZRH → IST Jun 3, 11:55 UTCJun 3, 13:10 UTC1h 15m
2026-06-03 THY8JE STR → IST Jun 3, 08:10 UTCJun 3, 09:45 UTC1h 35m
2026-06-03 THY5TK IST → NAP Jun 3, 04:40 UTCJun 3, 06:15 UTC1h 35m
2026-06-03 THY6SJ ESB → IST Jun 3, 01:25 UTCJun 3, 01:55 UTC30m
2026-06-02 THY7FS IST → ESB Jun 2, 23:20 UTCJun 2, 23:45 UTC25m
2026-06-02 THY2615 - Jun 2, 11:35 UTCJun 2, 16:10 UTC4h 35m
2026-06-02 THY5YA - Jun 2, 05:00 UTCJun 2, 05:55 UTC55m
2026-06-01 THY217 SAW → RUH Jun 1, 17:10 UTCJun 1, 21:10 UTC4h 0m
2026-06-01 THY4UA IST → DUB Jun 1, 14:50 UTCJun 1, 15:40 UTC50m
2026-06-01 THY7VK BJV → IST Jun 1, 11:45 UTCJun 1, 13:00 UTC1h 15m
2026-05-31 THY8TW IST → FCO May 31, 18:45 UTCJun 1, 03:55 UTC9h 10m
2026-05-31 THY2967 - May 31, 16:35 UTCMay 31, 17:30 UTC55m

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

Mode-S 4BAA56 frequently asked

What is Mode-S code 4BAA56?
4BAA56 is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-JRV.
Where is Mode-S 4BAA56 registered?
Mode-S code 4BAA56 is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BAA56 broadcasting right now?
Yes. Mode-S 4BAA56 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BAA56, octal 22725126, decimal 4,958,806.
What flights does 4BAA56 operate?
Mode-S 4BAA56 has broadcast 20 distinct callsigns, including THY8TW, THY3DN, THY1JR, THY1HC, THY1GH.