sensors Mode-S transponder

4BB299

ICAO 24-bit transponder address · allocated to Turkey

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

Hex
4BB299
Octal
22731231
Decimal
4,960,921
Country
TR
Tail
TC-LTY
Type
A21N
No current signal · last broadcast 15h ago
Flights observed
8
Distinct callsigns
3
Country
TR
Last broadcast
15h ago

Last known position

Most recent position reported by Mode-S 4BB299.

Country allocation

The ICAO 24-bit address 4BB299 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
TKJ9SE - 3 2026-04-13
TKJ5CU Tarkim Havacilik 3 2026-04-13
TKJ2GJ Tarkim Havacilik 2 2026-04-14

Recent flights last 8

DateFlightRouteTakeoffLandingDuration
2026-04-14 TKJ2GJ SAW → DUS Apr 14, 09:10 UTCApr 14, 09:45 UTC35m
2026-04-14 TKJ2GJ SAW → DUS Apr 14, 07:00 UTCApr 14, 07:10 UTC10m
2026-04-13 TKJ5CU AMS → SAW Apr 13, 12:20 UTCApr 13, 14:05 UTC1h 45m
2026-04-13 TKJ5CU AMS → SAW Apr 13, 11:55 UTCApr 13, 14:05 UTC2h 10m
2026-04-13 TKJ5CU AMS → SAW Apr 13, 11:15 UTCApr 13, 12:15 UTC1h 0m
2026-04-13 TKJ9SE - Apr 13, 08:20 UTCApr 13, 09:20 UTC1h 0m
2026-04-13 TKJ9SE - Apr 13, 07:55 UTCApr 13, 09:20 UTC1h 25m
2026-04-13 TKJ9SE - Apr 13, 06:20 UTCApr 13, 08:15 UTC1h 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-LTY page for operator, model, and routing details .

Mode-S 4BB299 frequently asked

What is Mode-S code 4BB299?
4BB299 is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-LTY.
Where is Mode-S 4BB299 registered?
Mode-S code 4BB299 is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BB299 broadcasting right now?
No active broadcast right now. Last signal was 15h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BB299, octal 22731231, decimal 4,960,921.
What flights does 4BB299 operate?
Mode-S 4BB299 has broadcast 3 distinct callsigns, including TKJ9SE, TKJ5CU, TKJ2GJ.