Apparatus

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sensors Mode-S transponder

4BAA90

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-JTP · AIRBUS A-321

Hex
4BAA90
Octal
22725220
Decimal
4,958,864
Country
TR
Tail
TC-JTP
Type
A321
No current signal · last broadcast 6h ago
Flights observed
172
Distinct callsigns
20
Country
TR
Last broadcast
6h ago

Last known position

Most recent position reported by Mode-S 4BAA90.

Country allocation

The ICAO 24-bit address 4BAA90 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
THY3GL Turkish Airlines 4 2026-05-17
THY2CR Turkish Airlines 3 2026-05-12
THY9VU Turkish Airlines 2 2026-05-27
THY9VR Turkish Airlines 2 2026-05-15
THY9SD Turkish Airlines 2 2026-05-07
THY9JV Turkish Airlines 2 2026-05-29
THY8UZ Turkish Airlines 2 2026-05-22
THY8KV Turkish Airlines 2 2026-05-15
THY8ES Turkish Airlines 2 2026-05-18
THY7LX Turkish Airlines 2 2026-05-18
THY6ZS Turkish Airlines 2 2026-05-17
THY6QV Turkish Airlines 2 2026-04-26
THY6PM Turkish Airlines 2 2026-05-15
THY67W Turkish Airlines 2 2026-05-08
THY662 Turkish Airlines 2 2026-05-14
THY661 Turkish Airlines 2 2026-05-14
THY65X Turkish Airlines 2 2026-05-07
THY5ZC Turkish Airlines 2 2026-05-29
THY5ST Turkish Airlines 2 2026-05-08
THY5RE Turkish Airlines 2 2026-05-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 THY4CW - May 29, 17:10 UTCMay 29, 19:25 UTC2h 15m
2026-05-29 THY5ZC ADB → IST May 29, 14:30 UTCMay 29, 15:15 UTC45m
2026-05-29 THY9JV ORN → IST May 29, 12:15 UTCMay 29, 12:55 UTC40m
2026-05-29 THY6BK HAM → IST May 29, 09:10 UTCMay 29, 09:55 UTC45m
2026-05-29 THY6JV BER → IST May 29, 07:15 UTCMay 29, 08:00 UTC45m
2026-05-28 THY8KT OSL → IST May 28, 05:40 UTCMay 28, 10:10 UTC4h 30m
2026-05-27 THY9VU IST → VAR May 27, 19:10 UTCMay 27, 20:20 UTC1h 10m
2026-05-27 THY4PR AYT → IST May 27, 16:35 UTCMay 27, 17:50 UTC1h 15m
2026-05-27 THY7ED DBV → IST May 27, 07:20 UTCMay 27, 08:40 UTC1h 20m
2026-05-27 THY1AD IST → DBV May 27, 04:49 UTCMay 27, 06:09 UTC1h 20m
2026-05-26 THY9BA SKP → IST May 26, 18:34 UTCMay 26, 19:25 UTC50m
2026-05-26 THY1LR AYT → VKO May 26, 16:20 UTCMay 26, 16:55 UTC35m
2026-05-26 THY3HM - May 26, 10:50 UTCMay 26, 11:00 UTC10m
2026-05-25 THY3TR VKO → AYT May 25, 13:15 UTCMay 25, 15:35 UTC2h 20m
2026-05-25 THY6XB IST → BER May 25, 09:45 UTCMay 25, 12:00 UTC2h 15m
2026-05-25 THY9TJ IST → DUS May 25, 06:50 UTCMay 25, 07:25 UTC35m
2026-05-25 THY4ND VCE → ISL May 25, 04:50 UTCMay 25, 05:55 UTC1h 5m
2026-05-25 THY9EG HRG → IST May 25, 02:05 UTCMay 25, 02:15 UTC10m
2026-05-24 THY3NC IST → EDI May 24, 19:50 UTCMay 24, 21:45 UTC1h 55m
2026-05-24 THY3XM - May 24, 17:30 UTCMay 24, 17:40 UTC10m
2026-05-24 THY2RA ESB → IST May 24, 09:40 UTCMay 24, 09:50 UTC10m
2026-05-24 THY4GM AYT → LED May 24, 07:10 UTCMay 24, 07:20 UTC10m
2026-05-23 THY1MD AYT → OMS May 23, 16:05 UTCMay 23, 16:25 UTC20m
2026-05-23 THY1MD AYT → OMS May 23, 14:50 UTCMay 23, 15:25 UTC35m
2026-05-23 THY7DA DIY → IST May 23, 09:50 UTCMay 23, 10:00 UTC10m
2026-05-23 THY72X IST → DIY May 23, 05:55 UTCMay 23, 06:05 UTC10m
2026-05-22 THY1ZY TZX → IST May 22, 18:15 UTCMay 22, 19:05 UTC50m
2026-05-22 THY6GR IST → SOF May 22, 16:25 UTCMay 22, 16:50 UTC25m
2026-05-22 THY2GS HTY → IST May 22, 14:05 UTCMay 22, 14:20 UTC15m
2026-05-22 THY8UZ IST → HTY May 22, 10:15 UTCMay 22, 13:10 UTC2h 55m
2026-05-21 THY3TS - May 21, 20:35 UTCMay 21, 21:15 UTC40m
2026-05-21 THY5KA IST → BER May 21, 17:40 UTCMay 21, 18:05 UTC25m
2026-05-21 THY6KQ IST → AMM May 21, 13:55 UTCMay 21, 14:25 UTC30m
2026-05-21 THY4TN IST → TZX May 21, 12:05 UTCMay 21, 12:25 UTC20m
2026-05-21 THY5HQ IST → SZG May 21, 05:40 UTCMay 21, 08:20 UTC2h 40m
2026-05-20 THY6CN ADB → IST May 20, 16:45 UTCMay 20, 19:20 UTC2h 35m
2026-05-20 THY2GS HTY → IST May 20, 14:20 UTCMay 20, 14:30 UTC10m
2026-05-20 THY8UZ IST → HTY May 20, 10:20 UTCMay 20, 13:20 UTC3h 0m
2026-05-20 THY4EC NAV → IST May 20, 08:20 UTCMay 20, 08:35 UTC15m
2026-05-20 THY7VD - May 20, 05:40 UTCMay 20, 05:50 UTC10m
2026-05-19 THY80R SKG → IST May 19, 18:30 UTCMay 19, 19:20 UTC50m
2026-05-19 THY2VB - May 19, 16:30 UTCMay 19, 17:20 UTC50m
2026-05-19 THY3SF ASR → IST May 19, 13:25 UTCMay 19, 13:35 UTC10m
2026-05-18 THY8GZ IST → EDI May 18, 18:50 UTCMay 18, 19:35 UTC45m
2026-05-18 THY9XE MQM → IST May 18, 16:15 UTCMay 18, 17:00 UTC45m
2026-05-18 THY274 ALG → SAW May 18, 13:15 UTCMay 18, 14:15 UTC1h 0m
2026-05-18 THY273 IST → RMO May 18, 11:10 UTCMay 18, 11:50 UTC40m
2026-05-18 THY7LX ECN → IST May 18, 07:45 UTCMay 18, 08:50 UTC1h 5m
2026-05-18 THY8ES IST → TGD May 18, 05:15 UTCMay 18, 06:25 UTC1h 10m
2026-05-17 THY3GL KYA → IST May 17, 20:20 UTCMay 17, 20:40 UTC20m

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

Mode-S 4BAA90 frequently asked

What is Mode-S code 4BAA90?
4BAA90 is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-JTP.
Where is Mode-S 4BAA90 registered?
Mode-S code 4BAA90 is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BAA90 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 4BAA90, octal 22725220, decimal 4,958,864.
What flights does 4BAA90 operate?
Mode-S 4BAA90 has broadcast 20 distinct callsigns, including THY3GL, THY2CR, THY9VU, THY9VR, THY9SD.