sensors Mode-S transponder

4BA9E9

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-JOI · AIRBUS A-330-300

Hex
4BA9E9
Octal
22724751
Decimal
4,958,697
Country
TR
Tail
TC-JOI
Type
A333
No current signal · last broadcast 9h ago
Flights observed
285
Distinct callsigns
20
Country
TR
Last broadcast
9h ago

Last known position

Most recent position reported by Mode-S 4BA9E9.

Country allocation

The ICAO 24-bit address 4BA9E9 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
THY173 - 11 2026-06-16
THY727 - 9 2026-07-03
THY1AK - 9 2026-07-13
THY172 Turkish Airlines 9 2026-06-15
THY46M - 8 2026-07-04
THY726 - 7 2026-07-02
THY2AV - 7 2026-07-12
THY9YH - 5 2026-07-04
THY9NL - 5 2026-07-02
THY62Y Turkish Airlines 5 2026-07-03
THY3ME - 5 2026-06-20
THY1SX - 5 2026-07-02
THY90Q - 4 2026-07-04
THY6BZ - 4 2026-07-13
THY5YP - 4 2026-06-20
THY2TG - 4 2026-07-13
THY237 - 4 2026-07-10
THY8DA - 3 2026-07-12
THY7AT Turkish Airlines 3 2026-07-01
THY571 Turkish Airlines 3 2026-06-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 THY43C - Jul 14, 11:30 UTCJul 14, 13:00 UTC1h 30m
2026-07-14 THY32W - Jul 14, 07:25 UTCJul 14, 07:35 UTC10m
2026-07-14 THY32W - Jul 14, 01:25 UTCJul 14, 06:35 UTC5h 10m
2026-07-13 THY51Q - Jul 13, 17:55 UTCJul 13, 23:10 UTC5h 15m
2026-07-13 THY2TG - Jul 13, 13:00 UTCJul 13, 15:40 UTC2h 40m
2026-07-13 THY6BZ - Jul 13, 07:55 UTCJul 13, 10:50 UTC2h 55m
2026-07-13 THY1AK - Jul 13, 04:35 UTCJul 13, 04:55 UTC20m
2026-07-12 THY1AK - Jul 12, 23:20 UTCJul 13, 04:00 UTC4h 40m
2026-07-12 THY2AV - Jul 12, 16:45 UTCJul 12, 21:10 UTC4h 25m
2026-07-12 THY8DA - Jul 12, 07:31 UTCJul 12, 13:45 UTC6h 15m
2026-07-11 THY1CT - Jul 11, 22:20 UTCJul 12, 05:01 UTC6h 40m
2026-07-11 THY5MH - Jul 11, 17:50 UTCJul 11, 20:05 UTC2h 15m
2026-07-11 THY3ZA - Jul 11, 13:45 UTCJul 11, 16:05 UTC2h 20m
2026-07-10 THY237 - Jul 10, 15:50 UTCJul 11, 10:10 UTC18h 20m
2026-07-09 THY4RN - Jul 9, 22:20 UTCJul 10, 01:20 UTC3h 0m
2026-07-09 THY9PG - Jul 9, 16:50 UTCJul 9, 20:15 UTC3h 25m
2026-07-09 THY8DA - Jul 9, 07:30 UTCJul 9, 14:00 UTC6h 30m
2026-07-08 THY1CT - Jul 8, 22:30 UTCJul 9, 05:10 UTC6h 40m
2026-07-08 THY1131 - Jul 8, 10:50 UTCJul 8, 11:10 UTC20m
2026-07-08 THY1131 - Jul 8, 03:35 UTCJul 8, 09:55 UTC6h 20m
2026-07-07 THY1130 - Jul 7, 17:35 UTCJul 8, 00:40 UTC7h 5m
2026-07-07 THY1KQ BLQ → IST Jul 7, 10:45 UTCJul 7, 13:45 UTC3h 0m
2026-07-07 THY3JL - Jul 7, 05:20 UTCJul 7, 08:20 UTC3h 0m
2026-07-07 THY53 - Jul 7, 00:30 UTCJul 7, 00:45 UTC15m
2026-07-06 THY53 - Jul 6, 15:10 UTCJul 6, 23:45 UTC8h 35m
2026-07-06 THY53 - Jul 6, 12:05 UTCJul 6, 12:55 UTC50m
2026-07-06 THY52 - Jul 6, 06:25 UTCJul 6, 06:55 UTC30m
2026-07-05 THY52 - Jul 5, 23:55 UTCJul 6, 04:15 UTC4h 20m
2026-07-05 THY52 - Jul 5, 19:35 UTCJul 5, 20:00 UTC25m
2026-07-05 THY1634 - Jul 5, 15:00 UTCJul 5, 17:00 UTC2h 0m
2026-07-05 THY5GJ - Jul 5, 10:40 UTCJul 5, 12:55 UTC2h 15m
2026-07-05 THY2RC - Jul 5, 07:00 UTCJul 5, 08:00 UTC1h 0m
2026-07-05 THY5JA - Jul 5, 04:45 UTCJul 5, 05:30 UTC45m
2026-07-04 THY90Q - Jul 4, 18:10 UTCJul 4, 20:20 UTC2h 10m
2026-07-04 THY9YH - Jul 4, 13:20 UTCJul 4, 15:45 UTC2h 25m
2026-07-04 THY46M - Jul 4, 01:05 UTCJul 4, 08:45 UTC7h 40m
2026-07-03 THY62Y IST → DAC Jul 3, 16:05 UTCJul 3, 23:00 UTC6h 55m
2026-07-03 THY727 - Jul 3, 11:10 UTCJul 3, 11:25 UTC15m
2026-07-03 THY727 - Jul 3, 04:15 UTCJul 3, 10:30 UTC6h 15m
2026-07-02 THY726 - Jul 2, 19:50 UTCJul 3, 01:30 UTC5h 40m
2026-07-02 THY9NL - Jul 2, 13:30 UTCJul 2, 16:20 UTC2h 50m
2026-07-02 THY1SX - Jul 2, 08:20 UTCJul 2, 11:20 UTC3h 0m
2026-07-01 THY8LG - Jul 1, 18:10 UTCJul 2, 06:00 UTC11h 50m
2026-07-01 THY7AT DUS → IST Jul 1, 13:55 UTCJul 1, 15:50 UTC1h 55m
2026-07-01 THY40B - Jul 1, 09:40 UTCJul 1, 11:40 UTC2h 0m
2026-06-30 THY351 - Jun 30, 17:35 UTCJul 1, 06:30 UTC12h 55m
2026-06-30 THY1KQ BLQ → IST Jun 30, 10:30 UTCJun 30, 13:30 UTC3h 0m
2026-06-30 THY3JL - Jun 30, 05:30 UTCJun 30, 08:30 UTC3h 0m
2026-06-29 THY141 - Jun 29, 17:40 UTCJun 30, 02:30 UTC8h 51m
2026-06-29 THY6AV - Jun 29, 11:10 UTCJun 29, 15:04 UTC3h 55m

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

Mode-S 4BA9E9 frequently asked

What is Mode-S code 4BA9E9?
4BA9E9 is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-JOI.
Where is Mode-S 4BA9E9 registered?
Mode-S code 4BA9E9 is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BA9E9 broadcasting right now?
No active broadcast right now. Last signal was 9h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BA9E9, octal 22724751, decimal 4,958,697.
What flights does 4BA9E9 operate?
Mode-S 4BA9E9 has broadcast 20 distinct callsigns, including THY173, THY727, THY1AK, THY172, THY46M.