sensors Mode-S transponder

4BB28F

ICAO 24-bit transponder address · allocated to Turkey

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

Hex
4BB28F
Octal
22731217
Decimal
4,960,911
Country
TR
Tail
TC-LTO
Type
A21N
No current signal · last broadcast 16h ago
Flights observed
13
Distinct callsigns
7
Country
TR
Last broadcast
16h ago

Last known position

Most recent position reported by Mode-S 4BB28F.

Country allocation

The ICAO 24-bit address 4BB28F 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 7 distinct

Callsign Airline Flights Last seen
THY3WE - 4 2026-04-13
THY8FT Turkish Airlines 3 2026-04-13
THY1YM Turkish Airlines 2 2026-04-14
THY7RJ - 1 2026-04-12
THY359 - 1 2026-04-13
THY358 - 1 2026-04-13
THY1LZ Turkish Airlines 1 2026-04-14

Recent flights last 13

DateFlightRouteTakeoffLandingDuration
2026-04-14 THY1YM KFS → IST Apr 14, 09:10 UTCApr 14, 11:00 UTC1h 50m
2026-04-14 THY1YM KFS → IST Apr 14, 08:25 UTCApr 14, 09:05 UTC40m
2026-04-14 THY1LZ AGP → IST Apr 14, 05:15 UTCApr 14, 06:50 UTC1h 35m
2026-04-13 THY359 - Apr 13, 23:20 UTCApr 13, 23:40 UTC20m
2026-04-13 THY358 - Apr 13, 20:00 UTCApr 13, 20:10 UTC10m
2026-04-13 THY8FT LIS → IST Apr 13, 12:20 UTCApr 13, 14:10 UTC1h 50m
2026-04-13 THY8FT LIS → IST Apr 13, 11:55 UTCApr 13, 14:10 UTC2h 15m
2026-04-13 THY8FT LIS → IST Apr 13, 10:20 UTCApr 13, 12:15 UTC1h 55m
2026-04-13 THY3WE - Apr 13, 08:20 UTCApr 13, 08:35 UTC15m
2026-04-13 THY3WE - Apr 13, 07:55 UTCApr 13, 08:35 UTC40m
2026-04-13 THY3WE - Apr 13, 04:20 UTCApr 13, 08:15 UTC3h 55m
2026-04-13 THY3WE - Apr 13, 04:10 UTCApr 13, 07:50 UTC3h 40m
2026-04-12 THY7RJ - Apr 12, 17:50 UTCApr 12, 19:40 UTC1h 50m

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

Mode-S 4BB28F frequently asked

What is Mode-S code 4BB28F?
4BB28F is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-LTO.
Where is Mode-S 4BB28F registered?
Mode-S code 4BB28F is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BB28F 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 4BB28F, octal 22731217, decimal 4,960,911.
What flights does 4BB28F operate?
Mode-S 4BB28F has broadcast 7 distinct callsigns, including THY3WE, THY8FT, THY1YM, THY7RJ, THY359.