sensors Mode-S transponder

4BB28D

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-LTM · AIRBUS A-321neo

Hex
4BB28D
Octal
22731215
Decimal
4,960,909
Country
TR
Tail
TC-LTM
Type
A21N
No current signal · last broadcast 16h ago
Flights observed
11
Distinct callsigns
6
Country
TR
Last broadcast
16h ago

Last known position

Most recent position reported by Mode-S 4BB28D.

Country allocation

The ICAO 24-bit address 4BB28D 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 6 distinct

Callsign Airline Flights Last seen
THY8BR Turkish Airlines 3 2026-04-13
THY5UA Turkish Airlines 2 2026-04-14
THY39P - 2 2026-04-13
THY25G Turkish Airlines 2 2026-04-13
THY7AH Turkish Airlines 1 2026-04-14
THY1EF - 1 2026-04-12

Recent flights last 11

DateFlightRouteTakeoffLandingDuration
2026-04-14 THY5UA WAW → IST Apr 14, 09:10 UTCApr 14, 10:10 UTC1h 0m
2026-04-14 THY5UA WAW → IST Apr 14, 08:20 UTCApr 14, 09:05 UTC45m
2026-04-14 THY7AH ONQ → IST Apr 14, 05:15 UTCApr 14, 06:55 UTC1h 40m
2026-04-13 THY25G AGP → IST Apr 13, 19:50 UTCApr 13, 20:40 UTC50m
2026-04-13 THY25G AGP → IST Apr 13, 16:55 UTCApr 13, 20:10 UTC3h 15m
2026-04-13 THY8BR EBL → IST Apr 13, 12:20 UTCApr 13, 15:20 UTC3h 0m
2026-04-13 THY8BR EBL → IST Apr 13, 11:55 UTCApr 13, 15:20 UTC3h 25m
2026-04-13 THY8BR EBL → IST Apr 13, 11:10 UTCApr 13, 12:15 UTC1h 5m
2026-04-13 THY39P - Apr 13, 07:55 UTCApr 13, 08:05 UTC10m
2026-04-13 THY39P - Apr 13, 05:25 UTCApr 13, 08:05 UTC2h 40m
2026-04-12 THY1EF - Apr 12, 17:15 UTCApr 12, 19:20 UTC2h 5m

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

Mode-S 4BB28D frequently asked

What is Mode-S code 4BB28D?
4BB28D is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-LTM.
Where is Mode-S 4BB28D registered?
Mode-S code 4BB28D is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BB28D broadcasting right now?
No active broadcast right now. Last signal was 16h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BB28D, octal 22731215, decimal 4,960,909.
What flights does 4BB28D operate?
Mode-S 4BB28D has broadcast 6 distinct callsigns, including THY8BR, THY5UA, THY39P, THY25G, THY7AH.