sensors Mode-S transponder

4BB104

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-LHD · AIRBUS A-350-900

Hex
4BB104
Octal
22730404
Decimal
4,960,516
Country
TR
Tail
TC-LHD
Type
A359
No current signal · last broadcast 1d ago
Flights observed
10
Distinct callsigns
3
Country
TR
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 4BB104.

Country allocation

The ICAO 24-bit address 4BB104 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
THY056 - 6 2026-04-13
THY057 Turkish Airlines 3 2026-04-13
THY3PQ - 1 2026-04-12

Recent flights last 10

DateFlightRouteTakeoffLandingDuration
2026-04-13 THY057 CGK → IST Apr 13, 18:00 UTCApr 13, 18:55 UTC55m
2026-04-13 THY057 CGK → IST Apr 13, 15:10 UTCApr 13, 15:35 UTC25m
2026-04-13 THY057 CGK → IST Apr 13, 14:15 UTCApr 13, 14:25 UTC10m
2026-04-13 THY056 - Apr 13, 10:20 UTCApr 13, 10:30 UTC10m
2026-04-13 THY056 - Apr 13, 08:55 UTCApr 13, 09:30 UTC35m
2026-04-13 THY056 - Apr 13, 08:05 UTCApr 13, 09:30 UTC1h 25m
2026-04-13 THY056 - Apr 13, 04:20 UTCApr 13, 06:40 UTC2h 20m
2026-04-13 THY056 - Apr 13, 00:20 UTCApr 13, 04:15 UTC3h 55m
2026-04-13 THY056 - Apr 13, 00:10 UTCApr 13, 01:10 UTC1h 0m
2026-04-12 THY3PQ - Apr 12, 17:15 UTCApr 12, 19:50 UTC2h 35m

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

Mode-S 4BB104 frequently asked

What is Mode-S code 4BB104?
4BB104 is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-LHD.
Where is Mode-S 4BB104 registered?
Mode-S code 4BB104 is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BB104 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BB104, octal 22730404, decimal 4,960,516.
What flights does 4BB104 operate?
Mode-S 4BB104 has broadcast 3 distinct callsigns, including THY056, THY057, THY3PQ.