Apparatus

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sensors Mode-S transponder

4BAAC9

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-JVI · BOEING 737-800

Hex
4BAAC9
Octal
22725311
Decimal
4,958,921
Country
TR
Tail
TC-JVI
Type
B738
No current signal · last broadcast Jul 26, 19:20 UTC
Flights observed
402
Distinct callsigns
20
Country
TR
Last broadcast
Jul 26, 19:20 UTC

Last known position

Most recent position reported by Mode-S 4BAAC9.

Country allocation

The ICAO 24-bit address 4BAAC9 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
THY7QZ - 6 2026-07-15
THY6XJ - 6 2026-04-17
THY3BJ - 6 2026-07-15
THY2ZN Turkish Airlines 6 2026-07-19
THY7TE Turkish Airlines 5 2026-04-17
THY4CW - 5 2026-07-18
THY7MV - 4 2026-06-24
THY70S Turkish Airlines 4 2026-07-24
THY6KQ Turkish Airlines 4 2026-07-19
THY4AQ - 4 2026-07-26
THY3NU - 4 2026-07-04
THY2TF - 4 2026-06-24
THY2LJ - 4 2026-07-23
THY1SQ - 4 2026-07-03
THY1PZ - 4 2026-07-24
THY7MX Turkish Airlines 3 2026-07-26
THY7DA Turkish Airlines 3 2026-07-25
THY6QV Turkish Airlines 3 2026-07-23
THY327 Turkish Airlines 3 2026-06-13
THY320 Turkish Airlines 3 2026-06-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 THY7MX AYT → LGW Jul 26, 16:45 UTCJul 26, 19:20 UTC2h 35m
2026-07-26 THY4AQ - Jul 26, 13:00 UTCJul 26, 13:20 UTC20m
2026-07-26 THY4AQ - Jul 26, 11:50 UTCJul 26, 12:25 UTC35m
2026-07-26 THY8RJ - Jul 26, 09:00 UTCJul 26, 10:30 UTC1h 30m
2026-07-26 THY6KC LHR → LHR Jul 26, 06:15 UTCJul 26, 06:50 UTC36m
2026-07-26 THY4BS IST → ESB Jul 26, 04:25 UTCJul 26, 04:50 UTC25m
2026-07-25 THY2DW IST → BRE Jul 25, 14:45 UTCJul 25, 19:05 UTC4h 20m
2026-07-25 THY7DA DIY → IST Jul 25, 07:15 UTCJul 25, 12:05 UTC4h 50m
2026-07-24 THY70S ECN → IST Jul 24, 17:55 UTCJul 24, 19:15 UTC1h 20m
2026-07-24 THY1PZ - Jul 24, 15:35 UTCJul 24, 16:45 UTC1h 10m
2026-07-24 THY4ZX SAW → BRU Jul 24, 11:25 UTCJul 24, 13:25 UTC2h 0m
2026-07-24 THY6DR - Jul 24, 07:20 UTCJul 24, 09:30 UTC2h 10m
2026-07-23 THY2LJ - Jul 23, 20:40 UTCJul 23, 21:00 UTC20m
2026-07-23 THY2LJ - Jul 23, 19:30 UTCJul 23, 20:05 UTC35m
2026-07-23 THY6QV SAW → STN Jul 23, 18:15 UTCJul 23, 18:30 UTC15m
2026-07-23 THY6QV SAW → STN Jul 23, 17:15 UTCJul 23, 17:40 UTC25m
2026-07-23 THY7NQ ESB → IST Jul 23, 14:35 UTCJul 23, 15:10 UTC35m
2026-07-23 THY4XH IST → EZS Jul 23, 12:25 UTCJul 23, 12:45 UTC20m
2026-07-23 THY5UA WAW → IST Jul 23, 08:25 UTCJul 23, 10:25 UTC2h 0m
2026-07-23 THY7AH ONQ → IST Jul 23, 05:00 UTCJul 23, 06:50 UTC1h 50m
2026-07-22 THY272 RMO → IST Jul 22, 19:20 UTCJul 22, 20:10 UTC50m
2026-07-22 THY271 - Jul 22, 17:00 UTCJul 22, 17:40 UTC40m
2026-07-22 THY1JU OSL → IST Jul 22, 11:45 UTCJul 22, 14:40 UTC2h 55m
2026-07-22 THY1LP IST → HAM Jul 22, 11:10 UTCJul 22, 11:20 UTC10m
2026-07-22 THY6JB IST → ZAG Jul 22, 04:10 UTCJul 22, 04:50 UTC40m
2026-07-22 THY7DP IST → ADB Jul 22, 02:25 UTCJul 22, 02:55 UTC30m
2026-07-21 THY6ZX RIX → IST Jul 21, 17:25 UTCJul 21, 20:05 UTC2h 40m
2026-07-21 THY4SK IST → RIX Jul 21, 13:35 UTCJul 21, 16:15 UTC2h 40m
2026-07-21 THY8QE STR → IST Jul 21, 05:05 UTCJul 21, 07:20 UTC2h 15m
2026-07-20 THY7MX AYT → LGW Jul 20, 16:35 UTCJul 20, 19:10 UTC2h 35m
2026-07-20 THY4UF IST → BEG Jul 20, 05:20 UTCJul 20, 09:10 UTC3h 50m
2026-07-19 THY2RK IST → ERZ Jul 19, 18:45 UTCJul 19, 21:55 UTC3h 10m
2026-07-19 THY6KQ IST → AMM Jul 19, 15:15 UTCJul 19, 15:25 UTC10m
2026-07-19 THY6KQ IST → AMM Jul 19, 13:55 UTCJul 19, 14:25 UTC30m
2026-07-19 THY4TN IST → TZX Jul 19, 11:35 UTCJul 19, 12:50 UTC1h 15m
2026-07-19 THY2ZN MUC → IST Jul 19, 05:35 UTCJul 19, 07:45 UTC2h 10m
2026-07-18 THY4CW - Jul 18, 17:10 UTCJul 18, 19:30 UTC2h 20m
2026-07-18 THY5083 - Jul 18, 05:55 UTCJul 18, 14:15 UTC8h 20m
2026-07-18 THY6HA - Jul 18, 00:04 UTCJul 18, 02:29 UTC2h 25m
2026-07-17 THY1FK - Jul 17, 19:30 UTCJul 17, 22:05 UTC2h 35m
2026-07-17 THY3UQ - Jul 17, 15:25 UTCJul 17, 15:55 UTC30m
2026-07-17 THY1NE - Jul 17, 13:25 UTCJul 17, 13:50 UTC25m
2026-07-17 THY55C - Jul 17, 09:25 UTCJul 17, 09:50 UTC25m
2026-07-17 THY55C - Jul 17, 08:20 UTCJul 17, 08:54 UTC35m
2026-07-17 THY1HM IST → TZX Jul 17, 07:00 UTCJul 17, 07:14 UTC15m
2026-07-17 THY1HM IST → TZX Jul 17, 05:55 UTCJul 17, 06:25 UTC30m
2026-07-16 THY4UP - Jul 16, 17:30 UTCJul 16, 19:55 UTC2h 25m
2026-07-16 THY9BS - Jul 16, 13:54 UTCJul 16, 16:15 UTC2h 20m
2026-07-16 THY2BQ - Jul 16, 07:50 UTCJul 16, 08:45 UTC55m
2026-07-16 THY90L - Jul 16, 05:20 UTCJul 16, 06:15 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-JVI page for operator, model, and routing details .

Mode-S 4BAAC9 frequently asked

What is Mode-S code 4BAAC9?
4BAAC9 is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-JVI.
Where is Mode-S 4BAAC9 registered?
Mode-S code 4BAAC9 is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BAAC9 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 19:20 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BAAC9, octal 22725311, decimal 4,958,921.
What flights does 4BAAC9 operate?
Mode-S 4BAAC9 has broadcast 20 distinct callsigns, including THY7QZ, THY6XJ, THY3BJ, THY2ZN, THY7TE.