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sensors Mode-S transponder

4BB28A

ICAO 24-bit transponder address · allocated to Turkey

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

Hex
4BB28A
Octal
22731212
Decimal
4,960,906
Country
TR
Tail
TC-LTJ
Type
A21N
Broadcasting now · callsign THY3FN · 35,000 ft
Flights observed
406
Distinct callsigns
20
Country
TR
Last broadcast
Jul 26, 20:10 UTC

Current position

4BB28A is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4BB28A 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 20 distinct

Callsign Airline Flights Last seen
THY263 - 6 2026-07-11
THY77T - 5 2026-06-30
THY6US - 5 2026-07-08
THY367 - 5 2026-06-20
THY349 - 5 2026-07-12
THY7PU - 4 2026-07-08
THY359 Turkish Airlines 4 2026-07-23
THY2JE - 4 2026-07-08
THY255 - 4 2026-07-19
THY9QD Turkish Airlines 3 2026-06-08
THY9GV - 3 2026-07-16
THY8TR - 3 2026-07-09
THY8SU - 3 2026-06-21
THY7ZV Turkish Airlines 3 2026-05-08
THY70G Turkish Airlines 3 2026-06-07
THY6ZU Turkish Airlines 3 2026-07-24
THY6RB - 3 2026-07-10
THY6JP Turkish Airlines 3 2026-05-08
THY6GF Turkish Airlines 3 2026-06-29
THY6ER Turkish Airlines 3 2026-06-02

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 THY7RJ MUC → IST Jul 26, 18:05 UTCJul 26, 20:10 UTC2h 5m
2026-07-26 THY1UP IST → MUC Jul 26, 14:00 UTCJul 26, 16:20 UTC2h 20m
2026-07-26 THY1QU IST → BHX Jul 26, 11:05 UTCJul 26, 12:00 UTC55m
2026-07-26 THY6DT IST → AYT Jul 26, 08:45 UTCJul 26, 09:40 UTC55m
2026-07-25 THY144 IST → RUH Jul 25, 23:05 UTCJul 26, 07:05 UTC8h 1m
2026-07-25 THY6EZ DUS → IST Jul 25, 18:45 UTCJul 25, 21:35 UTC2h 50m
2026-07-25 THY5KP IST → MUC Jul 25, 14:40 UTCJul 25, 17:25 UTC2h 45m
2026-07-25 THY640 MJI → IST Jul 25, 09:55 UTCJul 25, 12:15 UTC2h 20m
2026-07-25 THY639 IST → MJI Jul 25, 05:05 UTCJul 25, 07:20 UTC2h 15m
2026-07-24 THY3BY GZT → IST Jul 24, 22:55 UTCJul 25, 02:30 UTC3h 35m
2026-07-24 THY3ZM IST → BRU Jul 24, 17:55 UTCJul 24, 20:15 UTC2h 20m
2026-07-24 THY6ZU IST → ASR Jul 24, 13:55 UTCJul 24, 16:25 UTC2h 30m
2026-07-24 THY89M MRS → IST Jul 24, 09:15 UTCJul 24, 12:05 UTC2h 50m
2026-07-24 THY74M IST → MRS Jul 24, 04:55 UTCJul 24, 07:40 UTC2h 45m
2026-07-23 THY359 EVN → IST Jul 23, 23:25 UTCJul 24, 01:20 UTC1h 55m
2026-07-23 THY358 IST → EVN Jul 23, 19:05 UTCJul 23, 20:15 UTC1h 10m
2026-07-23 THY109 MED → IST Jul 23, 10:10 UTCJul 23, 17:25 UTC7h 15m
2026-07-23 THY361 EVN → IST Jul 23, 05:55 UTCJul 23, 07:55 UTC2h 0m
2026-07-22 THY360 IST → EVN Jul 22, 23:55 UTCJul 23, 01:20 UTC1h 25m
2026-07-22 THY50V IST → FCO Jul 22, 17:20 UTCJul 22, 20:20 UTC3h 0m
2026-07-22 THY8XT MRS → IST Jul 22, 12:50 UTCJul 22, 16:05 UTC3h 15m
2026-07-21 THY49T HAM → IST Jul 21, 18:00 UTCJul 21, 20:40 UTC2h 40m
2026-07-21 THY2NZ - Jul 21, 13:40 UTCJul 21, 16:30 UTC2h 50m
2026-07-21 THY1BC IST → BIO Jul 21, 08:45 UTCJul 21, 11:20 UTC2h 35m
2026-07-21 THY8VN VIE → ESB Jul 21, 04:15 UTCJul 21, 07:10 UTC2h 55m
2026-07-20 THY7UF IST → ADB Jul 20, 16:20 UTCJul 20, 20:00 UTC3h 40m
2026-07-20 THY2UK - Jul 20, 11:05 UTCJul 20, 15:00 UTC3h 55m
2026-07-19 THY323 ASB → IST Jul 19, 19:10 UTCJul 20, 00:55 UTC5h 45m
2026-07-19 THY322 - Jul 19, 17:35 UTCJul 19, 18:00 UTC25m
2026-07-19 THY1928 BHX → IST Jul 19, 12:30 UTCJul 19, 15:45 UTC3h 15m
2026-07-19 THY2LA IST → BHX Jul 19, 07:25 UTCJul 19, 11:10 UTC3h 45m
2026-07-19 THY255 - Jul 19, 00:05 UTCJul 19, 01:40 UTC1h 35m
2026-07-18 THY254 - Jul 18, 15:45 UTCJul 18, 16:15 UTC30m
2026-07-18 THY1316 BIO → IST Jul 18, 10:35 UTCJul 18, 13:45 UTC3h 10m
2026-07-18 THY6ZN - Jul 18, 05:10 UTCJul 18, 08:40 UTC3h 30m
2026-07-17 THY3ZM - Jul 17, 17:50 UTCJul 17, 20:15 UTC2h 25m
2026-07-17 THY6ZU - Jul 17, 13:50 UTCJul 17, 16:29 UTC2h 40m
2026-07-17 THY8HP - Jul 17, 08:54 UTCJul 17, 11:55 UTC3h 0m
2026-07-17 THY9XN - Jul 17, 04:44 UTCJul 17, 07:40 UTC2h 55m
2026-07-16 THY7QN - Jul 16, 22:25 UTCJul 17, 01:45 UTC3h 20m
2026-07-16 THY9GV - Jul 16, 16:55 UTCJul 16, 20:39 UTC3h 45m
2026-07-16 THY2LX - Jul 16, 14:25 UTCJul 16, 15:14 UTC50m
2026-07-16 THY4CV - Jul 16, 12:25 UTCJul 16, 13:15 UTC50m
2026-07-16 THY3XJ - Jul 16, 07:10 UTCJul 16, 07:50 UTC40m
2026-07-16 THY5EH - Jul 16, 05:30 UTCJul 16, 05:35 UTC5m
2026-07-16 THY5EH - Jul 16, 04:05 UTCJul 16, 04:35 UTC30m
2026-07-15 THY2DQ - Jul 15, 17:50 UTCJul 15, 20:15 UTC2h 25m
2026-07-15 THY3PH - Jul 15, 13:15 UTCJul 15, 16:10 UTC2h 55m
2026-07-15 THY2FQ - Jul 15, 08:50 UTCJul 15, 11:20 UTC2h 30m
2026-07-15 THY1PE - Jul 15, 04:30 UTCJul 15, 07:25 UTC2h 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-LTJ page for operator, model, and routing details .

Mode-S 4BB28A frequently asked

What is Mode-S code 4BB28A?
4BB28A is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-LTJ.
Where is Mode-S 4BB28A registered?
Mode-S code 4BB28A is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BB28A broadcasting right now?
Yes. Mode-S 4BB28A is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BB28A, octal 22731212, decimal 4,960,906.
What flights does 4BB28A operate?
Mode-S 4BB28A has broadcast 20 distinct callsigns, including THY263, THY77T, THY6US, THY367, THY349.