sensors Mode-S transponder

4B9DF5

ICAO 24-bit transponder address · allocated to Turkey

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

Hex
4B9DF5
Octal
22716765
Decimal
4,955,637
Country
TR
Tail
TC-GOU
Type
A333
Broadcasting now · callsign THY6549 · 32,000 ft
Flights observed
6
Distinct callsigns
3
Country
TR
Last broadcast
19h ago

Current position

4B9DF5 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4B9DF5 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 3 distinct

Callsign Airline Flights Last seen
THY6326 - 4 2026-04-14
THY6092 Turkish Airlines 1 2026-04-13
THY6067 - 1 2026-04-12

Recent flights last 6

DateFlightRouteTakeoffLandingDuration
2026-04-14 THY6326 - Apr 14, 07:55 UTCApr 14, 08:30 UTC35m
2026-04-14 THY6326 - Apr 14, 05:15 UTCApr 14, 05:50 UTC35m
2026-04-13 THY6326 - Apr 13, 19:50 UTCApr 13, 23:30 UTC3h 40m
2026-04-13 THY6326 - Apr 13, 19:35 UTCApr 13, 20:10 UTC35m
2026-04-13 THY6092 BRU → IST Apr 13, 09:10 UTCApr 13, 10:25 UTC1h 15m
2026-04-12 THY6067 - Apr 12, 18:35 UTCApr 12, 18:55 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-GOU page for operator, model, and routing details .

Mode-S 4B9DF5 frequently asked

What is Mode-S code 4B9DF5?
4B9DF5 is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-GOU.
Where is Mode-S 4B9DF5 registered?
Mode-S code 4B9DF5 is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4B9DF5 broadcasting right now?
Yes. Mode-S 4B9DF5 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4B9DF5, octal 22716765, decimal 4,955,637.
What flights does 4B9DF5 operate?
Mode-S 4B9DF5 has broadcast 3 distinct callsigns, including THY6326, THY6092, THY6067.