Apparatus

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sensors Mode-S transponder

4BB28B

ICAO 24-bit transponder address · allocated to Turkey

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

Hex
4BB28B
Octal
22731213
Decimal
4,960,907
Country
TR
Tail
TC-LTK
Type
A21N
No current signal · last broadcast Jul 26, 20:25 UTC
Flights observed
367
Distinct callsigns
20
Country
TR
Last broadcast
Jul 26, 20:25 UTC

Last known position

Most recent position reported by Mode-S 4BB28B.

Country allocation

The ICAO 24-bit address 4BB28B 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
THY8QD - 6 2026-06-22
THY349 Turkish Airlines 6 2026-07-21
THY6VM - 4 2026-07-09
THY5VH Turkish Airlines 4 2026-05-31
THY4WU - 4 2026-07-09
THY49T - 4 2026-07-14
THY359 - 4 2026-07-01
THY2NZ - 4 2026-07-14
THY255 Turkish Airlines 4 2026-05-25
THY095 Turkish Airlines 4 2026-07-24
THY8VN Turkish Airlines 3 2026-05-29
THY8TR Turkish Airlines 3 2026-05-28
THY8SB Turkish Airlines 3 2026-07-25
THY8FT Turkish Airlines 3 2026-07-22
THY7RN - 3 2026-07-02
THY7GJ Turkish Airlines 3 2026-06-11
THY77T Turkish Airlines 3 2026-07-18
THY75P - 3 2026-04-19
THY5ZV Turkish Airlines 3 2026-07-25
THY5RD - 3 2026-07-01

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 THY9VU IST → VAR Jul 26, 16:40 UTCJul 26, 20:25 UTC3h 45m
2026-07-26 THY7XK ZRH → IST Jul 26, 12:20 UTCJul 26, 14:55 UTC2h 35m
2026-07-26 THY5AZ SAW → AYT Jul 26, 08:00 UTCJul 26, 10:30 UTC2h 30m
2026-07-26 THY365 TAS → IST Jul 26, 06:10 UTCJul 26, 06:20 UTC10m
2026-07-25 THY365 TAS → IST Jul 25, 19:40 UTCJul 26, 05:30 UTC9h 50m
2026-07-25 THY8SB IST → NCE Jul 25, 14:50 UTCJul 25, 17:40 UTC2h 50m
2026-07-25 THY5ZV VIE → IST Jul 25, 09:55 UTCJul 25, 13:00 UTC3h 5m
2026-07-25 THY5BE IST → AMS Jul 25, 06:55 UTCJul 25, 07:50 UTC55m
2026-07-25 THY65Y ESB → VAN Jul 25, 04:55 UTCJul 25, 05:40 UTC45m
2026-07-24 THY095 JED → IST Jul 24, 17:55 UTCJul 25, 02:10 UTC8h 15m
2026-07-24 THY9TF AMS → SAW Jul 24, 14:15 UTCJul 24, 16:10 UTC1h 55m
2026-07-24 THY1GP IST → BLQ Jul 24, 10:40 UTCJul 24, 12:55 UTC2h 15m
2026-07-24 THY361 EVN → IST Jul 24, 06:25 UTCJul 24, 08:15 UTC1h 50m
2026-07-23 THY360 IST → EVN Jul 23, 23:55 UTCJul 24, 01:20 UTC1h 25m
2026-07-23 THY9JL CDG → IST Jul 23, 16:35 UTCJul 23, 19:20 UTC2h 45m
2026-07-23 THY50J IST → CDG Jul 23, 11:50 UTCJul 23, 15:00 UTC3h 10m
2026-07-23 THY9MV AMM → IST Jul 23, 07:50 UTCJul 23, 09:55 UTC2h 5m
2026-07-23 THY6NP IST → TGD Jul 23, 04:05 UTCJul 23, 05:55 UTC1h 50m
2026-07-22 THY3TL BER → IST Jul 22, 21:00 UTCJul 22, 23:20 UTC2h 20m
2026-07-22 THY4AY IST → ARN Jul 22, 17:15 UTCJul 22, 19:40 UTC2h 25m
2026-07-22 THY8FT LIS → IST Jul 22, 11:10 UTCJul 22, 14:10 UTC3h 0m
2026-07-22 THY3WE IST → LIS Jul 22, 04:20 UTCJul 22, 05:25 UTC1h 5m
2026-07-21 THY094 IST → JED Jul 21, 17:55 UTCJul 22, 02:10 UTC8h 15m
2026-07-21 THY7GF - Jul 21, 13:05 UTCJul 21, 15:50 UTC2h 45m
2026-07-21 THY9RZ IST → HAM Jul 21, 08:45 UTCJul 21, 11:35 UTC2h 50m
2026-07-21 THY349 FRU → IST Jul 21, 05:40 UTCJul 21, 05:50 UTC10m
2026-07-20 THY349 FRU → IST Jul 20, 17:50 UTCJul 21, 05:05 UTC11h 14m
2026-07-20 THY9TF AMS → SAW Jul 20, 13:20 UTCJul 20, 15:15 UTC1h 55m
2026-07-20 THY1GP IST → BLQ Jul 20, 09:40 UTCJul 20, 12:00 UTC2h 20m
2026-07-20 THY80N SKP → IST Jul 20, 07:05 UTCJul 20, 08:00 UTC55m
2026-07-20 THY1TH IST → MSR Jul 20, 04:45 UTCJul 20, 05:40 UTC55m
2026-07-19 THY9JL CDG → IST Jul 19, 16:45 UTCJul 19, 19:35 UTC2h 50m
2026-07-19 THY50J IST → CDG Jul 19, 11:35 UTCJul 19, 15:00 UTC3h 25m
2026-07-19 THY2XH - Jul 19, 07:15 UTCJul 19, 08:20 UTC1h 5m
2026-07-19 THY1KY IST → TBS Jul 19, 04:05 UTCJul 19, 05:55 UTC1h 50m
2026-07-19 THY4GX BJV → IST Jul 19, 01:05 UTCJul 19, 02:00 UTC55m
2026-07-18 THY2EA IST → BJV Jul 18, 23:05 UTCJul 18, 23:50 UTC45m
2026-07-18 THY7TE - Jul 18, 17:40 UTCJul 18, 21:00 UTC3h 20m
2026-07-18 THY6XJ - Jul 18, 12:10 UTCJul 18, 15:50 UTC3h 40m
2026-07-18 THY77T DNZ → IST Jul 18, 10:00 UTCJul 18, 10:25 UTC25m
2026-07-18 THY77T DNZ → IST Jul 18, 07:55 UTCJul 18, 09:20 UTC1h 25m
2026-07-18 THY88H IST → GYD Jul 18, 04:00 UTCJul 18, 05:55 UTC1h 55m
2026-07-17 THY3KY - Jul 17, 17:50 UTCJul 17, 20:15 UTC2h 25m
2026-07-17 THY8UG - Jul 17, 13:45 UTCJul 17, 16:19 UTC2h 35m
2026-07-17 THY89M - Jul 17, 08:40 UTCJul 17, 11:04 UTC2h 25m
2026-07-17 THY74M - Jul 17, 04:25 UTCJul 17, 07:14 UTC2h 50m
2026-07-16 THY095 - Jul 16, 18:10 UTCJul 17, 02:15 UTC8h 5m
2026-07-16 THY30N - Jul 16, 13:20 UTCJul 16, 16:15 UTC2h 55m
2026-07-16 THY1UZ - Jul 16, 08:15 UTCJul 16, 11:30 UTC3h 15m
2026-07-16 THY349 - Jul 16, 05:10 UTCJul 16, 05:35 UTC25m

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

Mode-S 4BB28B frequently asked

What is Mode-S code 4BB28B?
4BB28B is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-LTK.
Where is Mode-S 4BB28B registered?
Mode-S code 4BB28B is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BB28B broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:25 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BB28B, octal 22731213, decimal 4,960,907.
What flights does 4BB28B operate?
Mode-S 4BB28B has broadcast 20 distinct callsigns, including THY8QD, THY349, THY6VM, THY5VH, THY4WU.