Apparatus

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sensors Mode-S transponder

4BAA66

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-JSF · AIRBUS A-321

Hex
4BAA66
Octal
22725146
Decimal
4,958,822
Country
TR
Tail
TC-JSF
Type
A321
No current signal · last broadcast 6h ago
Flights observed
129
Distinct callsigns
20
Country
TR
Last broadcast
6h ago

Last known position

Most recent position reported by Mode-S 4BAA66.

Country allocation

The ICAO 24-bit address 4BAA66 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
THY2CV Turkish Airlines 5 2026-05-07
THY6CN Turkish Airlines 3 2026-05-26
THY5HQ Turkish Airlines 3 2026-05-27
THY4YJ Turkish Airlines 3 2026-05-07
THY1VR Turkish Airlines 3 2026-05-16
THY80N Turkish Airlines 2 2026-05-22
THY7CG Turkish Airlines 2 2026-05-16
THY6BA Turkish Airlines 2 2026-04-15
THY5UW Turkish Airlines 2 2026-04-14
THY5EJ Turkish Airlines 2 2026-04-15
THY4ZG Turkish Airlines 2 2026-05-18
THY4HU - 2 2026-04-14
THY3ZY Turkish Airlines 2 2026-05-18
THY3ED Turkish Airlines 2 2026-04-13
THY1TH Turkish Airlines 2 2026-05-22
THY1SL Turkish Airlines 2 2026-05-11
THY9XR Turkish Airlines 1 2026-05-22
THY9RZ Turkish Airlines 1 2026-05-10
THY9RK Turkish Airlines 1 2026-05-18
THY9JV Turkish Airlines 1 2026-05-01

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 THY5KB IST → VNO May 29, 17:30 UTCMay 29, 18:55 UTC1h 25m
2026-05-29 THY87R - May 29, 14:50 UTCMay 29, 15:55 UTC1h 5m
2026-05-29 THY4KQ ASR → IST May 29, 08:15 UTCMay 29, 11:35 UTC3h 20m
2026-05-28 THY68G - May 28, 16:15 UTCMay 28, 17:15 UTC1h 0m
2026-05-28 THY2EV IST → AYT May 28, 13:50 UTCMay 28, 14:50 UTC1h 0m
2026-05-28 THY2BQ PRN → IST May 28, 08:00 UTCMay 28, 09:05 UTC1h 5m
2026-05-28 THY90L IST → PRN May 28, 05:20 UTCMay 28, 06:15 UTC55m
2026-05-27 THY7QK HTY → IST May 27, 15:35 UTCMay 27, 19:30 UTC3h 55m
2026-05-27 THY5HQ IST → SZG May 27, 05:35 UTCMay 27, 08:10 UTC2h 35m
2026-05-26 THY6CN ADB → IST May 26, 16:24 UTCMay 26, 19:05 UTC2h 40m
2026-05-26 THY642 BEN → IST May 26, 08:30 UTCMay 26, 10:10 UTC1h 40m
2026-05-26 THY641 IST → BEN May 26, 04:04 UTCMay 26, 05:34 UTC1h 30m
2026-05-25 THY7EM GZT → IST May 25, 14:20 UTCMay 25, 14:30 UTC10m
2026-05-25 THY44D IST → GZT May 25, 10:25 UTCMay 25, 10:35 UTC10m
2026-05-25 THY5HQ IST → SZG May 25, 05:35 UTCMay 25, 08:25 UTC2h 50m
2026-05-24 THY6CN ADB → IST May 24, 16:40 UTCMay 24, 19:15 UTC2h 35m
2026-05-24 THY1950 AMS → IST May 24, 05:45 UTCMay 24, 08:45 UTC3h 0m
2026-05-23 THY1949 IST → BRU May 23, 17:20 UTCMay 23, 20:20 UTC3h 1m
2026-05-23 THY5TH BUD → IST May 23, 13:15 UTCMay 23, 14:55 UTC1h 40m
2026-05-23 THY1XF ECN → IST May 23, 10:25 UTCMay 23, 12:05 UTC1h 40m
2026-05-23 THY5HQ IST → SZG May 23, 05:45 UTCMay 23, 08:20 UTC2h 35m
2026-05-22 THY6CN ADB → IST May 22, 16:40 UTCMay 22, 19:25 UTC2h 45m
2026-05-22 THY2DH - May 22, 14:25 UTCMay 22, 14:40 UTC15m
2026-05-22 THY9XR IST → KSY May 22, 10:15 UTCMay 22, 13:40 UTC3h 25m
2026-05-22 THY80N SKP → IST May 22, 07:05 UTCMay 22, 07:45 UTC40m
2026-05-22 THY1TH IST → MSR May 22, 04:45 UTCMay 22, 05:20 UTC35m
2026-05-21 THY6VQ TLL → IST May 21, 16:55 UTCMay 21, 19:55 UTC3h 0m
2026-05-21 THY6LK IST → ATH May 21, 12:55 UTCMay 21, 15:40 UTC2h 45m
2026-05-21 THY3VM ADA → SAW May 21, 00:25 UTCMay 21, 02:20 UTC1h 55m
2026-05-20 THY4HA ESB → IST May 20, 18:00 UTCMay 20, 21:00 UTC3h 0m
2026-05-19 THY7MT ECN → IST May 19, 23:15 UTCMay 20, 13:45 UTC14h 31m
2026-05-19 THY664 TUN → IST May 19, 16:40 UTCMay 19, 18:35 UTC1h 55m
2026-05-19 THY663 IST → TUN May 19, 12:50 UTCMay 19, 15:00 UTC2h 10m
2026-05-19 THY8KT OSL → IST May 19, 10:05 UTCMay 19, 10:15 UTC10m
2026-05-18 THY2DW IST → BRE May 18, 16:25 UTCMay 18, 17:40 UTC1h 15m
2026-05-18 THY9RK IST → TIV May 18, 14:05 UTCMay 18, 15:25 UTC1h 20m
2026-05-18 THY3ZY ZAG → IST May 18, 08:05 UTCMay 18, 09:35 UTC1h 30m
2026-05-18 THY4ZG IST → ZAG May 18, 04:55 UTCMay 18, 06:25 UTC1h 30m
2026-05-16 THY7CG VKO → IST May 16, 18:40 UTCMay 16, 20:40 UTC2h 0m
2026-05-16 THY1VR IST → VKO May 16, 12:11 UTCMay 16, 14:46 UTC2h 35m
2026-05-16 THY6PZ ADB → SAW May 16, 07:41 UTCMay 16, 08:55 UTC1h 15m
2026-05-16 THY8DB IST → CAI May 16, 04:50 UTCMay 16, 05:40 UTC50m
2026-05-15 THY1VR IST → VKO May 15, 12:00 UTCMay 15, 20:40 UTC8h 39m
2026-05-15 THY80N SKP → IST May 15, 07:00 UTCMay 15, 07:40 UTC40m
2026-05-15 THY1TH IST → MSR May 15, 04:50 UTCMay 15, 05:30 UTC40m
2026-05-14 THY3ZY ZAG → IST May 14, 08:00 UTCMay 14, 09:20 UTC1h 20m
2026-05-14 THY4ZG IST → ZAG May 14, 05:00 UTCMay 14, 06:40 UTC1h 40m
2026-05-12 THY8TR GYD → IST May 12, 20:45 UTCMay 13, 00:25 UTC3h 40m
2026-05-11 THY3GL KYA → IST May 11, 18:40 UTCMay 11, 19:25 UTC45m
2026-05-11 THY6ZS IST → BUS May 11, 17:20 UTCMay 11, 17:30 UTC10m

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

Mode-S 4BAA66 frequently asked

What is Mode-S code 4BAA66?
4BAA66 is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-JSF.
Where is Mode-S 4BAA66 registered?
Mode-S code 4BAA66 is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BAA66 broadcasting right now?
No active broadcast right now. Last signal was 6h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BAA66, octal 22725146, decimal 4,958,822.
What flights does 4BAA66 operate?
Mode-S 4BAA66 has broadcast 20 distinct callsigns, including THY2CV, THY6CN, THY5HQ, THY4YJ, THY1VR.