Apparatus

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sensors Mode-S transponder

4BAA87

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-JTG · AIRBUS A-321

Hex
4BAA87
Octal
22725207
Decimal
4,958,855
Country
TR
Tail
TC-JTG
Type
A321
No current signal · last broadcast Jul 26, 19:20 UTC
Flights observed
331
Distinct callsigns
20
Country
TR
Last broadcast
Jul 26, 19:20 UTC

Last known position

Most recent position reported by Mode-S 4BAA87.

Country allocation

The ICAO 24-bit address 4BAA87 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
THY65X - 4 2026-06-15
THY4ZG - 4 2026-06-12
THY4YJ - 4 2026-06-13
THY3ZY Turkish Airlines 4 2026-06-12
THY2EG - 4 2026-07-06
THY2CV - 4 2026-06-13
THY29B Turkish Airlines 4 2026-07-23
THY9SD - 3 2026-06-15
THY9EU Turkish Airlines 3 2026-07-26
THY8SF Turkish Airlines 3 2026-07-26
THY7ZV - 3 2026-07-06
THY7VM Turkish Airlines 3 2026-06-09
THY6ZU Turkish Airlines 3 2026-04-14
THY6VU Turkish Airlines 3 2026-06-09
THY6JP Turkish Airlines 3 2026-07-06
THY5MG Turkish Airlines 3 2026-07-23
THY5EA - 3 2026-07-06
THY5CJ Turkish Airlines 3 2026-07-23
THY1XF - 3 2026-07-14
THY1MD Turkish Airlines 3 2026-05-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 THY8SF MXP → IST Jul 26, 17:05 UTCJul 26, 19:20 UTC2h 15m
2026-07-26 THY9EU IST → NUE Jul 26, 13:30 UTCJul 26, 15:50 UTC2h 20m
2026-07-26 THY6WQ VNO → IST Jul 26, 08:55 UTCJul 26, 11:25 UTC2h 30m
2026-07-26 THY6XK IST → VNO Jul 26, 05:20 UTCJul 26, 07:40 UTC2h 21m
2026-07-25 THY4BV MLA → IST Jul 25, 18:05 UTCJul 25, 20:00 UTC1h 55m
2026-07-25 THY6EK - Jul 25, 15:00 UTCJul 25, 16:55 UTC1h 55m
2026-07-25 THY662 TUN → IST Jul 25, 09:40 UTCJul 25, 12:00 UTC2h 20m
2026-07-25 THY661 IST → TUN Jul 25, 05:40 UTCJul 25, 07:50 UTC2h 10m
2026-07-24 THY3GL KYA → IST Jul 24, 19:00 UTCJul 24, 20:50 UTC1h 50m
2026-07-24 THY6ZS IST → BUS Jul 24, 17:35 UTCJul 24, 17:40 UTC5m
2026-07-24 THY6ZS IST → BUS Jul 24, 16:20 UTCJul 24, 16:45 UTC25m
2026-07-24 THY1XT BJV → SAW Jul 24, 13:20 UTCJul 24, 14:15 UTC55m
2026-07-24 THY1NQ - Jul 24, 11:15 UTCJul 24, 12:05 UTC50m
2026-07-24 THY7RN BCN → IST Jul 24, 05:55 UTCJul 24, 08:55 UTC3h 0m
2026-07-23 THY5RD CDG → IST Jul 23, 18:05 UTCJul 23, 21:35 UTC3h 30m
2026-07-23 THY5MG MSR → IST Jul 23, 14:50 UTCJul 23, 15:45 UTC55m
2026-07-23 THY5BF LGW → IST Jul 23, 12:35 UTCJul 23, 13:30 UTC55m
2026-07-23 THY29B AYT → IST Jul 23, 09:20 UTCJul 23, 10:25 UTC1h 5m
2026-07-23 THY5CJ NUE → IST Jul 23, 07:05 UTCJul 23, 07:55 UTC50m
2026-07-22 THY3JW AYT → IST Jul 22, 18:30 UTCJul 22, 18:55 UTC25m
2026-07-22 THY3JW AYT → IST Jul 22, 14:20 UTCJul 22, 16:05 UTC1h 45m
2026-07-22 THY9DX IST → EAP Jul 22, 12:00 UTCJul 22, 13:00 UTC1h 0m
2026-07-21 THY664 TUN → IST Jul 21, 16:55 UTCJul 21, 18:45 UTC1h 50m
2026-07-21 THY663 IST → TUN Jul 21, 12:55 UTCJul 21, 15:05 UTC2h 10m
2026-07-21 THY4XN VAR → IST Jul 21, 06:55 UTCJul 21, 07:30 UTC35m
2026-07-21 THY2QY IST → VAR Jul 21, 04:50 UTCJul 21, 05:15 UTC25m
2026-07-20 THY9BA - Jul 20, 18:55 UTCJul 20, 20:05 UTC1h 10m
2026-07-20 THY1LR - Jul 20, 16:20 UTCJul 20, 17:20 UTC1h 0m
2026-07-20 THY6NJ IST → MXP Jul 20, 12:00 UTCJul 20, 13:05 UTC1h 5m
2026-07-20 THY3DB - Jul 20, 09:35 UTCJul 20, 10:05 UTC30m
2026-07-20 THY3NU IST → GNY Jul 20, 05:10 UTCJul 20, 07:35 UTC2h 25m
2026-07-19 THY1SQ IST → BRI Jul 19, 16:40 UTCJul 19, 19:20 UTC2h 40m
2026-07-19 THY9PJ - Jul 19, 13:40 UTCJul 19, 14:40 UTC1h 0m
2026-07-19 THY2QJ - Jul 19, 10:45 UTCJul 19, 11:45 UTC1h 0m
2026-07-19 THY7LX - Jul 19, 07:50 UTCJul 19, 08:45 UTC55m
2026-07-19 THY8ES IST → TGD Jul 19, 05:05 UTCJul 19, 06:05 UTC1h 0m
2026-07-18 THY8HU - Jul 18, 20:35 UTCJul 18, 21:55 UTC1h 20m
2026-07-18 THY439 - Jul 18, 18:00 UTCJul 18, 19:25 UTC1h 25m
2026-07-18 THY9TF - Jul 18, 13:25 UTCJul 18, 15:25 UTC2h 0m
2026-07-18 THY1GP - Jul 18, 09:45 UTCJul 18, 11:55 UTC2h 10m
2026-07-18 THY40H FCO → IST Jul 18, 05:30 UTCJul 18, 07:25 UTC1h 55m
2026-07-17 THY5EJ - Jul 17, 21:00 UTCJul 17, 21:34 UTC35m
2026-07-17 THY6VH - Jul 17, 12:19 UTCJul 17, 13:15 UTC55m
2026-07-17 THY9JC - Jul 17, 10:05 UTCJul 17, 11:04 UTC1h 0m
2026-07-17 THY5BE - Jul 17, 07:00 UTCJul 17, 07:50 UTC50m
2026-07-17 THY65Y - Jul 17, 05:04 UTCJul 17, 05:55 UTC50m
2026-07-17 THY8TR - Jul 17, 02:25 UTCJul 17, 02:34 UTC10m
2026-07-17 THY8TR - Jul 17, 00:10 UTCJul 17, 01:29 UTC1h 20m
2026-07-16 THY6BP - Jul 16, 20:19 UTCJul 16, 22:15 UTC1h 55m
2026-07-15 THY29B - Jul 15, 09:20 UTCJul 15, 10:20 UTC1h 0m

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

Mode-S 4BAA87 frequently asked

What is Mode-S code 4BAA87?
4BAA87 is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-JTG.
Where is Mode-S 4BAA87 registered?
Mode-S code 4BAA87 is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BAA87 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 4BAA87, octal 22725207, decimal 4,958,855.
What flights does 4BAA87 operate?
Mode-S 4BAA87 has broadcast 20 distinct callsigns, including THY65X, THY4ZG, THY4YJ, THY3ZY, THY2EG.