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sensors Mode-S transponder

4BA9EF

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-JOO · AIRBUS A-330-200

Hex
4BA9EF
Octal
22724757
Decimal
4,958,703
Country
TR
Tail
TC-JOO
Type
A332
No current signal · last broadcast Jul 26, 21:35 UTC
Flights observed
291
Distinct callsigns
20
Country
TR
Last broadcast
Jul 26, 21:35 UTC

Last known position

Most recent position reported by Mode-S 4BA9EF.

Country allocation

The ICAO 24-bit address 4BA9EF 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
THY6543 Turkish Airlines 15 2026-07-17
THY6130 Turkish Airlines 14 2026-07-21
THY6253 Turkish Airlines 10 2026-07-19
THY6545 - 9 2026-07-12
THY6467 - 9 2026-07-15
THY6102 - 9 2026-06-28
THY6146 - 8 2026-07-16
THY6103 - 8 2026-06-28
THY6319 - 7 2026-07-14
THY6645 Turkish Airlines 6 2026-04-21
THY6505 Turkish Airlines 6 2026-07-22
THY6439 - 6 2026-07-07
THY6140 Turkish Airlines 6 2026-07-23
THY6471 Turkish Airlines 5 2026-07-26
THY6277 - 5 2026-07-06
THY6215 - 5 2026-06-26
THY6111 - 5 2026-06-14
THY6644 - 4 2026-04-14
THY6557 Turkish Airlines 4 2026-05-27
THY6430 - 4 2026-07-04

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 THY6471 VNO → IST Jul 26, 20:25 UTCJul 26, 21:25 UTC1h 0m
2026-07-26 THY6471 VNO → IST Jul 26, 15:45 UTCJul 26, 18:45 UTC3h 0m
2026-07-26 THY6412 TPE → TPE Jul 26, 10:45 UTCJul 26, 13:25 UTC2h 40m
2026-07-26 THY6411 IST → TPE Jul 26, 04:40 UTCJul 26, 07:40 UTC3h 1m
2026-07-25 THY6508 TLV → IST Jul 25, 18:10 UTCJul 25, 21:20 UTC3h 10m
2026-07-25 THY6507 - Jul 25, 12:50 UTCJul 25, 16:00 UTC3h 10m
2026-07-25 THY6128 HKG → HKG Jul 25, 08:05 UTCJul 25, 10:15 UTC2h 10m
2026-07-24 THY6128 HKG → HKG Jul 24, 12:05 UTCJul 24, 13:50 UTC1h 45m
2026-07-24 THY6119 HKG → IST Jul 24, 01:30 UTCJul 24, 09:15 UTC7h 45m
2026-07-23 THY6118 IST → MAA Jul 23, 15:40 UTCJul 23, 20:50 UTC5h 10m
2026-07-23 THY6140 HKG → HKG Jul 23, 06:55 UTCJul 23, 13:05 UTC6h 10m
2026-07-22 THY6140 HKG → HKG Jul 22, 15:45 UTCJul 22, 20:10 UTC4h 25m
2026-07-22 THY6406 FRA → IST Jul 22, 11:10 UTCJul 22, 13:05 UTC1h 55m
2026-07-22 THY6505 STN → IST Jul 22, 00:15 UTCJul 22, 02:55 UTC2h 40m
2026-07-21 THY6505 STN → IST Jul 21, 21:15 UTCJul 21, 22:10 UTC55m
2026-07-21 THY6505 STN → IST Jul 21, 15:55 UTCJul 21, 19:10 UTC3h 15m
2026-07-21 THY6130 NBO → IST Jul 21, 05:25 UTCJul 21, 07:15 UTC1h 50m
2026-07-20 THY6130 - Jul 20, 19:00 UTCJul 20, 19:30 UTC30m
2026-07-20 THY6130 - Jul 20, 06:50 UTCJul 20, 16:05 UTC9h 15m
2026-07-19 THY6105 DEL → IST Jul 19, 22:25 UTCJul 20, 04:35 UTC6h 10m
2026-07-19 THY6104 IST → DEL Jul 19, 13:55 UTCJul 19, 19:20 UTC5h 25m
2026-07-19 THY6253 SZX → CIT Jul 19, 09:35 UTCJul 19, 09:55 UTC20m
2026-07-19 THY6253 SZX → CIT Jul 19, 07:35 UTCJul 19, 09:00 UTC1h 25m
2026-07-18 THY6253 SZX → CIT Jul 18, 21:10 UTCJul 18, 21:25 UTC15m
2026-07-18 THY6252 IST → MCT Jul 18, 18:30 UTCJul 18, 18:40 UTC10m
2026-07-18 THY6252 IST → MCT Jul 18, 09:50 UTCJul 18, 16:30 UTC6h 40m
2026-07-18 THY6252 IST → MCT Jul 18, 04:10 UTCJul 18, 08:05 UTC3h 55m
2026-07-17 THY6543 IST → STN Jul 17, 19:40 UTCJul 17, 22:15 UTC2h 35m
2026-07-17 THY6543 IST → STN Jul 17, 15:44 UTCJul 17, 17:05 UTC1h 20m
2026-07-17 THY6543 IST → STN Jul 17, 08:04 UTCJul 17, 11:25 UTC3h 20m
2026-07-16 THY6146 - Jul 16, 17:14 UTCJul 17, 05:55 UTC12h 40m
2026-07-16 THY6146 - Jul 16, 09:50 UTCJul 17, 05:55 UTC20h 5m
2026-07-16 THY6146 - Jul 16, 08:40 UTCJul 17, 05:55 UTC21h 15m
2026-07-16 THY6416 - Jul 16, 01:15 UTCJul 16, 04:30 UTC3h 15m
2026-07-15 THY6415 - Jul 15, 18:40 UTCJul 15, 22:30 UTC3h 50m
2026-07-15 THY6467 - Jul 15, 13:05 UTCJul 15, 15:45 UTC2h 40m
2026-07-15 THY6467 - Jul 15, 08:15 UTCJul 15, 10:55 UTC2h 40m
2026-07-15 THY6467 - Jul 15, 01:40 UTCJul 15, 05:30 UTC3h 50m
2026-07-14 THY6139 - Jul 14, 21:15 UTCJul 14, 22:50 UTC1h 34m
2026-07-14 THY6138 - Jul 14, 16:15 UTCJul 14, 18:15 UTC2h 0m
2026-07-14 THY6319 - Jul 14, 09:20 UTCJul 14, 11:45 UTC2h 25m
2026-07-13 THY6319 - Jul 13, 23:05 UTCJul 13, 23:25 UTC20m
2026-07-13 THY6318 - Jul 13, 19:20 UTCJul 13, 19:30 UTC10m
2026-07-13 THY6318 - Jul 13, 11:10 UTCJul 13, 17:25 UTC6h 15m
2026-07-13 THY6318 - Jul 13, 04:50 UTCJul 13, 09:30 UTC4h 40m
2026-07-12 THY6545 - Jul 12, 22:00 UTCJul 13, 00:45 UTC2h 45m
2026-07-12 THY6545 - Jul 12, 18:30 UTCJul 12, 19:45 UTC1h 15m
2026-07-12 THY6545 - Jul 12, 12:50 UTCJul 12, 16:15 UTC3h 25m
2026-07-12 THY6130 - Jul 12, 06:50 UTCJul 12, 08:40 UTC1h 50m
2026-07-11 THY6130 - Jul 11, 18:55 UTCJul 11, 19:25 UTC30m

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

Mode-S 4BA9EF frequently asked

What is Mode-S code 4BA9EF?
4BA9EF is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-JOO.
Where is Mode-S 4BA9EF registered?
Mode-S code 4BA9EF is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BA9EF broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:35 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BA9EF, octal 22724757, decimal 4,958,703.
What flights does 4BA9EF operate?
Mode-S 4BA9EF has broadcast 20 distinct callsigns, including THY6543, THY6130, THY6253, THY6545, THY6467.