Apparatus

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sensors Mode-S transponder

4BB275

ICAO 24-bit transponder address · allocated to Turkey

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

Hex
4BB275
Octal
22731165
Decimal
4,960,885
Country
TR
Tail
TC-LSU
Type
A21N
No current signal · last broadcast Jul 26, 21:15 UTC
Flights observed
422
Distinct callsigns
20
Country
TR
Last broadcast
Jul 26, 21:15 UTC

Last known position

Most recent position reported by Mode-S 4BB275.

Country allocation

The ICAO 24-bit address 4BB275 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
THY355 - 10 2026-07-02
THY359 - 5 2026-07-08
THY358 - 5 2026-07-08
THY323 Turkish Airlines 5 2026-06-09
THY2XS Turkish Airlines 5 2026-04-18
THY9KU Turkish Airlines 4 2026-05-30
THY9JL Turkish Airlines 4 2026-06-04
THY7GJ Turkish Airlines 4 2026-05-30
THY640 Turkish Airlines 4 2026-07-22
THY50J Turkish Airlines 4 2026-06-04
THY354 Turkish Airlines 4 2026-06-26
THY9TE - 3 2026-06-28
THY9RZ Turkish Airlines 3 2026-04-14
THY8YA Turkish Airlines 3 2026-05-29
THY8XH Turkish Airlines 3 2026-06-27
THY8DB Turkish Airlines 3 2026-06-05
THY7UF - 3 2026-07-16
THY7RJ - 3 2026-06-22
THY7GF Turkish Airlines 3 2026-04-14
THY7CT Turkish Airlines 3 2026-07-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 THY4TA CAI → IST Jul 26, 19:35 UTCJul 26, 21:15 UTC1h 40m
2026-07-26 THY3PC IST → CAI Jul 26, 16:20 UTCJul 26, 17:45 UTC1h 25m
2026-07-26 THY5UW VIE → IST Jul 26, 12:10 UTCJul 26, 14:05 UTC1h 55m
2026-07-26 THY4HU SAW → BRU Jul 26, 08:55 UTCJul 26, 10:45 UTC1h 50m
2026-07-26 THY1FE DLM → VKO Jul 26, 06:10 UTCJul 26, 07:00 UTC51m
2026-07-26 THY6WR IST → BJV Jul 26, 03:50 UTCJul 26, 04:25 UTC35m
2026-07-25 THY6NU GVA → IST Jul 25, 17:50 UTCJul 25, 20:15 UTC2h 25m
2026-07-25 THY33C IST → MAN Jul 25, 13:50 UTCJul 25, 16:30 UTC2h 40m
2026-07-25 THY46P IST → BAL Jul 25, 09:10 UTCJul 25, 11:40 UTC2h 30m
2026-07-25 THY6EU HAJ → IST Jul 25, 05:10 UTCJul 25, 07:40 UTC2h 30m
2026-07-24 THY1JM MCT → IST Jul 24, 23:45 UTCJul 25, 03:20 UTC3h 35m
2026-07-24 THY2YJ IST → MCT Jul 24, 15:55 UTCJul 24, 23:05 UTC7h 10m
2026-07-24 THY1MW VAN → IST Jul 24, 10:00 UTCJul 24, 13:40 UTC3h 40m
2026-07-24 THY1WN IST → LGW Jul 24, 04:25 UTCJul 24, 08:40 UTC4h 15m
2026-07-23 THY98E IST → BGW Jul 23, 19:20 UTCJul 23, 19:45 UTC25m
2026-07-23 THY2LG TZX → IST Jul 23, 16:00 UTCJul 23, 17:40 UTC1h 40m
2026-07-23 THY6TP IST → TZX Jul 23, 13:45 UTCJul 23, 14:55 UTC1h 10m
2026-07-23 THY4DT BSL → IST Jul 23, 09:05 UTCJul 23, 11:35 UTC2h 30m
2026-07-23 THY52U IST → BSL Jul 23, 04:55 UTCJul 23, 07:55 UTC3h 0m
2026-07-22 THY4TA CAI → IST Jul 22, 20:25 UTCJul 22, 22:00 UTC1h 35m
2026-07-22 THY3PC IST → CAI Jul 22, 16:50 UTCJul 22, 18:25 UTC1h 35m
2026-07-22 THY640 MJI → IST Jul 22, 05:05 UTCJul 22, 11:45 UTC6h 40m
2026-07-21 THY451 - Jul 21, 14:55 UTCJul 22, 03:10 UTC12h 15m
2026-07-21 THY4PD BEG → ISL Jul 21, 09:45 UTCJul 21, 12:30 UTC2h 45m
2026-07-21 THY1389 IST → BOD Jul 21, 04:30 UTCJul 21, 08:10 UTC3h 40m
2026-07-20 THY371 TAS → IST Jul 20, 15:50 UTCJul 21, 02:40 UTC10h 50m
2026-07-20 THY7CT ALG → IST Jul 20, 10:50 UTCJul 20, 13:25 UTC2h 35m
2026-07-20 THY1YW ZRH → IST Jul 20, 05:30 UTCJul 20, 07:45 UTC2h 15m
2026-07-19 THY4UP VNO → IST Jul 19, 17:30 UTCJul 19, 20:05 UTC2h 35m
2026-07-19 THY9BS IST → VNO Jul 19, 14:05 UTCJul 19, 16:15 UTC2h 10m
2026-07-19 THY4DT BSL → IST Jul 19, 09:00 UTCJul 19, 11:25 UTC2h 25m
2026-07-19 THY52U IST → BSL Jul 19, 05:05 UTCJul 19, 07:40 UTC2h 35m
2026-07-19 THY451 - Jul 19, 03:00 UTCJul 19, 03:15 UTC15m
2026-07-18 THY451 - Jul 18, 16:45 UTCJul 19, 02:10 UTC9h 25m
2026-07-18 THY450 - Jul 18, 15:20 UTCJul 18, 15:45 UTC25m
2026-07-18 THY142 - Jul 18, 04:45 UTCJul 18, 13:05 UTC8h 20m
2026-07-18 THY4GX BJV → IST Jul 18, 01:25 UTCJul 18, 02:14 UTC50m
2026-07-17 THY2EA IST → BJV Jul 17, 23:20 UTCJul 18, 00:00 UTC40m
2026-07-17 THY3VD - Jul 17, 17:05 UTCJul 17, 20:50 UTC3h 45m
2026-07-17 THY1PY - Jul 17, 11:10 UTCJul 17, 15:25 UTC4h 15m
2026-07-17 THY3WQ - Jul 17, 07:20 UTCJul 17, 08:54 UTC1h 35m
2026-07-17 THY75P - Jul 17, 04:39 UTCJul 17, 06:05 UTC1h 25m
2026-07-16 THY3BY GZT → IST Jul 16, 22:59 UTCJul 17, 02:45 UTC3h 45m
2026-07-16 THY7UF - Jul 16, 16:44 UTCJul 16, 20:29 UTC3h 45m
2026-07-16 THY2UK - Jul 16, 10:59 UTCJul 16, 14:50 UTC3h 50m
2026-07-16 THY9QD - Jul 16, 05:50 UTCJul 16, 09:00 UTC3h 10m
2026-07-15 THY70G - Jul 15, 18:55 UTCJul 15, 22:20 UTC3h 25m
2026-07-15 THY7LY - Jul 15, 13:00 UTCJul 15, 16:20 UTC3h 20m
2026-07-15 THY3LK - Jul 15, 07:20 UTCJul 15, 11:00 UTC3h 40m
2026-07-14 THY38X - Jul 14, 23:30 UTCJul 15, 03:45 UTC4h 15m

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

Mode-S 4BB275 frequently asked

What is Mode-S code 4BB275?
4BB275 is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-LSU.
Where is Mode-S 4BB275 registered?
Mode-S code 4BB275 is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BB275 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BB275, octal 22731165, decimal 4,960,885.
What flights does 4BB275 operate?
Mode-S 4BB275 has broadcast 20 distinct callsigns, including THY355, THY359, THY358, THY323, THY2XS.