Apparatus

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sensors Mode-S transponder

4BAA6D

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-JSM · AIRBUS A-321

Hex
4BAA6D
Octal
22725155
Decimal
4,958,829
Country
TR
Tail
TC-JSM
Type
A321
No current signal · last broadcast 2h ago
Flights observed
107
Distinct callsigns
20
Country
TR
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 4BAA6D.

Country allocation

The ICAO 24-bit address 4BAA6D 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
THY1SL Turkish Airlines 10 2026-05-23
THY1HC Turkish Airlines 5 2026-05-11
THY3HU Turkish Airlines 4 2026-05-22
THY8CD Turkish Airlines 3 2026-05-19
THY9TJ Turkish Airlines 2 2026-04-15
THY8TW Turkish Airlines 2 2026-04-28
THY5SY Turkish Airlines 2 2026-04-13
THY1JR Turkish Airlines 2 2026-05-17
THY9SF Turkish Airlines 1 2026-05-16
THY9EX Turkish Airlines 1 2026-04-21
THY9EJ Turkish Airlines 1 2026-05-09
THY9CP Turkish Airlines 1 2026-05-30
THY8KU Turkish Airlines 1 2026-05-09
THY8FB Turkish Airlines 1 2026-04-22
THY8AD - 1 2026-04-19
THY80R Turkish Airlines 1 2026-04-20
THY80N Turkish Airlines 1 2026-05-29
THY7VL Turkish Airlines 1 2026-05-27
THY7VK Turkish Airlines 1 2026-05-29
THY7QZ Turkish Airlines 1 2026-05-01

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 THY9CP IST → MUC May 30, 17:25 UTCMay 30, 17:55 UTC30m
2026-05-30 THY1YS IST → ESB May 30, 15:20 UTCMay 30, 15:40 UTC20m
2026-05-30 THY4983 KCM → IST May 30, 08:55 UTCMay 30, 13:45 UTC4h 50m
2026-05-29 THY2BD ADB → IST May 29, 15:55 UTCMay 29, 19:15 UTC3h 20m
2026-05-29 THY7VK BJV → IST May 29, 11:55 UTCMay 29, 12:45 UTC50m
2026-05-29 THY6GU IST → BJV May 29, 10:00 UTCMay 29, 10:45 UTC45m
2026-05-29 THY80N SKP → IST May 29, 07:10 UTCMay 29, 08:00 UTC50m
2026-05-29 THY1TH IST → MSR May 29, 04:40 UTCMay 29, 05:30 UTC50m
2026-05-28 THY5AW CPH → IST May 28, 09:05 UTCMay 28, 11:30 UTC2h 25m
2026-05-28 THY3PB ADB → IST May 28, 04:45 UTCMay 28, 07:50 UTC3h 5m
2026-05-27 THY5UZ ADB → IST May 27, 16:35 UTCMay 27, 17:15 UTC40m
2026-05-27 THY2VN KYA → IST May 27, 13:55 UTCMay 27, 14:35 UTC40m
2026-05-27 THY7VL GVA → IST May 27, 07:00 UTCMay 27, 08:10 UTC1h 10m
2026-05-27 THY6LJ ECN → IST May 27, 04:14 UTCMay 27, 05:24 UTC1h 10m
2026-05-26 THY658 TUN → IST May 26, 22:50 UTCMay 27, 01:05 UTC2h 15m
2026-05-26 THY657 IST → TUN May 26, 19:10 UTCMay 26, 21:00 UTC1h 50m
2026-05-26 THY2615 - May 26, 15:39 UTCMay 26, 15:49 UTC10m
2026-05-26 THY3RP - May 26, 11:30 UTCMay 26, 11:39 UTC10m
2026-05-25 THY2GN IST → SJJ May 25, 16:30 UTCMay 25, 16:40 UTC10m
2026-05-25 THY2VS IST → ESB May 25, 10:10 UTCMay 25, 11:10 UTC1h 0m
2026-05-24 THY3BE BRI → IST May 24, 18:45 UTCMay 24, 20:20 UTC1h 35m
2026-05-24 THY3XD IST → BRI May 24, 16:05 UTCMay 24, 17:30 UTC1h 25m
2026-05-24 THY4QR ISL → CDG May 24, 14:05 UTCMay 24, 14:20 UTC15m
2026-05-23 THY1SL IST → ECN May 23, 06:05 UTCMay 23, 09:15 UTC3h 10m
2026-05-22 THY5BU SJJ → IST May 22, 18:55 UTCMay 22, 20:20 UTC1h 25m
2026-05-22 THY4SE IST → SJJ May 22, 16:20 UTCMay 22, 17:25 UTC1h 5m
2026-05-22 THY3HU LED → IST May 22, 10:00 UTCMay 22, 12:55 UTC2h 55m
2026-05-22 THY1SL IST → ECN May 22, 05:40 UTCMay 22, 08:40 UTC3h 0m
2026-05-21 THY3JW AYT → IST May 21, 14:00 UTCMay 21, 14:55 UTC55m
2026-05-20 THY3DN AYT → VKO May 20, 17:00 UTCMay 21, 02:55 UTC9h 55m
2026-05-19 THY8CD AYT → VKO May 19, 16:30 UTCMay 20, 02:30 UTC10h 0m
2026-05-18 THY8CD AYT → VKO May 18, 16:45 UTCMay 19, 02:35 UTC9h 49m
2026-05-17 THY217 SAW → RUH May 17, 17:25 UTCMay 17, 20:05 UTC2h 40m
2026-05-17 THY1JR IST → STR May 17, 05:15 UTCMay 17, 15:40 UTC10h 26m
2026-05-16 THY3ET LED → AYT May 16, 17:35 UTCMay 17, 03:00 UTC9h 25m
2026-05-16 THY4UA IST → DUB May 16, 15:01 UTCMay 16, 15:45 UTC45m
2026-05-16 THY9SF IST → BCN May 16, 06:06 UTCMay 16, 08:55 UTC2h 50m
2026-05-15 THY5TN IST → MAD May 15, 16:30 UTCMay 15, 20:30 UTC4h 0m
2026-05-15 THY1SL IST → ECN May 15, 05:45 UTCMay 15, 13:15 UTC7h 30m
2026-05-14 THY1MD AYT → OMS May 14, 15:10 UTCMay 14, 15:30 UTC20m
2026-05-13 THY3GL KYA → IST May 13, 19:00 UTCMay 13, 19:40 UTC40m
2026-05-13 THY6ZS IST → BUS May 13, 17:40 UTCMay 13, 17:55 UTC15m
2026-05-13 THY39P BRU → IST May 13, 05:30 UTCMay 13, 08:05 UTC2h 35m
2026-05-12 THY1EF IST → BRU May 12, 16:30 UTCMay 12, 19:35 UTC3h 5m
2026-05-11 THY1HC IST → VKO May 11, 17:55 UTCMay 11, 20:45 UTC2h 50m
2026-05-11 THY662 TUN → IST May 11, 09:45 UTCMay 11, 11:20 UTC1h 35m
2026-05-11 THY661 IST → TUN May 11, 05:40 UTCMay 11, 07:55 UTC2h 15m
2026-05-10 THY20N ZAG → IST May 10, 17:49 UTCMay 10, 18:15 UTC25m
2026-05-10 THY4TL IST → LEJ May 10, 16:30 UTCMay 10, 16:50 UTC20m
2026-05-10 THY1SL IST → ECN May 10, 05:34 UTCMay 10, 13:05 UTC7h 30m

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

Mode-S 4BAA6D frequently asked

What is Mode-S code 4BAA6D?
4BAA6D is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-JSM.
Where is Mode-S 4BAA6D registered?
Mode-S code 4BAA6D is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BAA6D 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 4BAA6D, octal 22725155, decimal 4,958,829.
What flights does 4BAA6D operate?
Mode-S 4BAA6D has broadcast 20 distinct callsigns, including THY1SL, THY1HC, THY3HU, THY8CD, THY9TJ.