sensors Mode-S transponder

4BA9CA

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-JNJ · AIRBUS A-330-300

Hex
4BA9CA
Octal
22724712
Decimal
4,958,666
Country
TR
Tail
TC-JNJ
Type
A333
No current signal · last broadcast 5h ago
Flights observed
279
Distinct callsigns
20
Country
TR
Last broadcast
5h ago

Last known position

Most recent position reported by Mode-S 4BA9CA.

Country allocation

The ICAO 24-bit address 4BA9CA 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
THY89A - 8 2026-06-28
THY51U - 8 2026-06-27
THY4HC Turkish Airlines 7 2026-07-01
THY237 - 7 2026-07-08
THY707 - 6 2026-06-30
THY571 - 6 2026-06-29
THY52 Turkish Airlines 6 2026-04-30
THY8DP Turkish Airlines 5 2026-07-05
THY8DA - 5 2026-07-06
THY85T - 5 2026-07-02
THY7AU - 5 2026-07-05
THY735 - 5 2026-06-21
THY29M Turkish Airlines 5 2026-04-18
THY1QG - 5 2026-06-25
THY173 - 5 2026-06-25
THY172 Turkish Airlines 5 2026-06-24
THY163 Turkish Airlines 5 2026-05-20
THY6MG - 4 2026-07-14
THY59 - 4 2026-07-10
THY58 - 4 2026-07-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 THY6MG - Jul 14, 17:45 UTCJul 14, 20:00 UTC2h 15m
2026-07-14 THY3NV - Jul 14, 12:50 UTCJul 14, 15:30 UTC2h 40m
2026-07-13 THY43K - Jul 13, 16:10 UTCJul 14, 09:20 UTC17h 10m
2026-07-13 THY8NK - Jul 13, 10:20 UTCJul 13, 12:35 UTC2h 15m
2026-07-13 THY7JV - Jul 13, 04:45 UTCJul 13, 07:20 UTC2h 35m
2026-07-12 THY2PH - Jul 12, 17:20 UTCJul 12, 20:35 UTC3h 15m
2026-07-12 THY60C - Jul 12, 11:15 UTCJul 12, 14:50 UTC3h 35m
2026-07-11 THY38D - Jul 11, 16:40 UTCJul 12, 08:01 UTC15h 20m
2026-07-11 THY8FU - Jul 11, 10:05 UTCJul 11, 12:20 UTC2h 15m
2026-07-11 THY2FB - Jul 11, 05:15 UTCJul 11, 07:45 UTC2h 30m
2026-07-10 THY4SD - Jul 10, 18:15 UTCJul 10, 21:25 UTC3h 10m
2026-07-10 THY2LD - Jul 10, 12:15 UTCJul 10, 15:45 UTC3h 30m
2026-07-10 THY59 - Jul 10, 09:00 UTCJul 10, 09:35 UTC35m
2026-07-09 THY59 - Jul 9, 23:50 UTCJul 10, 08:25 UTC8h 35m
2026-07-09 THY58 - Jul 9, 13:15 UTCJul 9, 21:55 UTC8h 40m
2026-07-08 THY237 - Jul 8, 16:40 UTCJul 9, 10:40 UTC18h 0m
2026-07-08 THY3YB - Jul 8, 09:15 UTCJul 8, 11:15 UTC2h 0m
2026-07-08 THY4XL - Jul 8, 05:25 UTCJul 8, 07:10 UTC1h 45m
2026-07-07 THY5YP - Jul 7, 20:10 UTCJul 8, 02:25 UTC6h 15m
2026-07-07 THY3ME - Jul 7, 17:15 UTCJul 7, 17:40 UTC25m
2026-07-07 THY3ME - Jul 7, 10:55 UTCJul 7, 13:30 UTC2h 35m
2026-07-06 THY38D - Jul 6, 16:10 UTCJul 7, 07:50 UTC15h 40m
2026-07-06 THY8DA - Jul 6, 07:35 UTCJul 6, 13:45 UTC6h 10m
2026-07-05 THY1CT - Jul 5, 22:30 UTCJul 6, 05:25 UTC6h 55m
2026-07-05 THY8DP STR → VKO Jul 5, 17:40 UTCJul 5, 20:20 UTC2h 40m
2026-07-05 THY7AU - Jul 5, 12:35 UTCJul 5, 15:35 UTC3h 0m
2026-07-05 THY237 - Jul 5, 09:35 UTCJul 5, 10:00 UTC25m
2026-07-04 THY237 - Jul 4, 15:40 UTCJul 5, 09:00 UTC17h 20m
2026-07-04 THY237 - Jul 4, 09:45 UTCJul 4, 10:25 UTC40m
2026-07-03 THY237 - Jul 3, 15:50 UTCJul 4, 09:10 UTC17h 20m
2026-07-02 THY38Y IST → ADD Jul 2, 18:25 UTCJul 3, 05:55 UTC11h 30m
2026-07-02 THY5AR - Jul 2, 13:35 UTCJul 2, 16:00 UTC2h 25m
2026-07-02 THY5TP - Jul 2, 08:55 UTCJul 2, 11:20 UTC2h 25m
2026-07-02 THY85T - Jul 2, 04:50 UTCJul 2, 06:35 UTC1h 45m
2026-07-01 THY4HC IST → NBO Jul 1, 16:25 UTCJul 1, 18:10 UTC1h 45m
2026-06-30 THY707 - Jun 30, 22:25 UTCJul 1, 09:25 UTC11h 0m
2026-06-30 THY3RU CMN → IST Jun 30, 16:05 UTCJun 30, 20:10 UTC4h 5m
2026-06-30 THY5RM - Jun 30, 09:30 UTCJun 30, 13:40 UTC4h 10m
2026-06-29 THY2DJ - Jun 29, 18:25 UTCJun 30, 06:55 UTC12h 31m
2026-06-29 THY571 - Jun 29, 13:44 UTCJun 29, 16:04 UTC2h 20m
2026-06-29 THY571 - Jun 29, 07:09 UTCJun 29, 07:40 UTC30m
2026-06-28 THY571 - Jun 28, 22:39 UTCJun 29, 05:24 UTC6h 45m
2026-06-28 THY2TC BCN → IST Jun 28, 17:25 UTCJun 28, 20:34 UTC3h 10m
2026-06-28 THY5QT - Jun 28, 12:15 UTCJun 28, 15:09 UTC2h 55m
2026-06-28 THY89A - Jun 28, 01:59 UTCJun 28, 09:39 UTC7h 40m
2026-06-27 THY51U - Jun 27, 16:10 UTCJun 27, 23:04 UTC6h 55m
2026-06-27 THY1KQ BLQ → IST Jun 27, 10:29 UTCJun 27, 13:35 UTC3h 5m
2026-06-27 THY3JL - Jun 27, 05:39 UTCJun 27, 08:29 UTC2h 50m
2026-06-26 THY5YP - Jun 26, 20:15 UTCJun 27, 02:39 UTC6h 25m
2026-06-26 THY3ME - Jun 26, 11:14 UTCJun 26, 17:59 UTC6h 45m

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

Mode-S 4BA9CA frequently asked

What is Mode-S code 4BA9CA?
4BA9CA is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-JNJ.
Where is Mode-S 4BA9CA registered?
Mode-S code 4BA9CA is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BA9CA broadcasting right now?
No active broadcast right now. Last signal was 5h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BA9CA, octal 22724712, decimal 4,958,666.
What flights does 4BA9CA operate?
Mode-S 4BA9CA has broadcast 20 distinct callsigns, including THY89A, THY51U, THY4HC, THY237, THY707.