Apparatus

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sensors Mode-S transponder

4BB323

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-LYC · BOEING 737 MAX 9

Hex
4BB323
Octal
22731443
Decimal
4,961,059
Country
TR
Tail
TC-LYC
Type
B39M
No current signal · last broadcast 1h ago
Flights observed
222
Distinct callsigns
20
Country
TR
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 4BB323.

Country allocation

The ICAO 24-bit address 4BB323 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
THY34Q - 14 2026-06-29
THY27M - 14 2026-06-29
THY3225 - 8 2026-07-12
THY3241 - 7 2026-07-10
THY3235 - 7 2026-07-09
THY8BC Turkish Airlines 4 2026-05-05
THY6XJ - 4 2026-07-02
THY3209 - 4 2026-06-30
THY2XW Turkish Airlines 4 2026-05-05
THY1MU - 4 2026-06-02
THY8WX Turkish Airlines 3 2026-04-17
THY7TE Turkish Airlines 3 2026-07-02
THY6AE Turkish Airlines 3 2026-05-17
THY3FN Turkish Airlines 3 2026-04-17
THY38Y Turkish Airlines 3 2026-06-04
THY3237 - 3 2026-06-18
THY3224 - 3 2026-05-27
THY3205 - 3 2026-07-07
THY3204 - 3 2026-07-14
THY3201 - 3 2026-07-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 THY3204 - Jul 14, 18:00 UTCJul 14, 18:45 UTC45m
2026-07-14 THY3204 AYT → AYT Jul 14, 17:45 UTCJul 14, 17:50 UTC5m
2026-07-14 THY3204 AYT → AYT Jul 14, 17:30 UTCJul 14, 17:35 UTC5m
2026-07-13 THY3238 AYT → AYT Jul 13, 20:35 UTCJul 14, 08:05 UTC11h 30m
2026-07-12 THY3225 AYT → AYT Jul 12, 15:50 UTCJul 13, 02:55 UTC11h 5m
2026-07-11 THY3201 - Jul 11, 19:55 UTCJul 12, 08:01 UTC12h 5m
2026-07-10 THY3241 - Jul 10, 20:10 UTCJul 11, 07:55 UTC11h 45m
2026-07-09 THY3235 - Jul 9, 21:10 UTCJul 10, 08:30 UTC11h 20m
2026-07-07 THY3205 - Jul 7, 18:00 UTCJul 8, 05:25 UTC11h 25m
2026-07-07 THY3239 - Jul 7, 07:35 UTCJul 7, 07:55 UTC20m
2026-07-06 THY3238 - Jul 6, 20:40 UTCJul 7, 06:50 UTC10h 10m
2026-07-05 THY3241 - Jul 5, 20:00 UTCJul 6, 07:55 UTC11h 55m
2026-07-05 THY3253 - Jul 5, 05:00 UTCJul 5, 05:55 UTC55m
2026-07-05 THY3252 - Jul 5, 01:00 UTCJul 5, 02:25 UTC1h 25m
2026-07-04 THY9SG - Jul 4, 21:20 UTCJul 4, 22:15 UTC55m
2026-07-04 THY1JU - Jul 4, 11:20 UTCJul 4, 13:55 UTC2h 35m
2026-07-04 THY1LP - Jul 4, 07:15 UTCJul 4, 10:05 UTC2h 50m
2026-07-03 THY28J - Jul 3, 15:45 UTCJul 4, 03:05 UTC11h 20m
2026-07-03 THY640 - Jul 3, 10:30 UTCJul 3, 12:30 UTC2h 0m
2026-07-03 THY639 - Jul 3, 05:45 UTCJul 3, 07:50 UTC2h 5m
2026-07-02 THY7TE LIS → IST Jul 2, 16:55 UTCJul 2, 20:05 UTC3h 10m
2026-07-02 THY6XJ - Jul 2, 11:55 UTCJul 2, 15:25 UTC3h 30m
2026-07-02 THY9LR - Jul 2, 06:15 UTCJul 2, 07:00 UTC45m
2026-07-01 THY4FU - Jul 1, 15:35 UTCJul 1, 16:35 UTC1h 0m
2026-07-01 THY7VK - Jul 1, 11:50 UTCJul 1, 12:45 UTC55m
2026-07-01 THY6GU - Jul 1, 09:40 UTCJul 1, 10:35 UTC55m
2026-07-01 THY9LR - Jul 1, 05:45 UTCJul 1, 06:40 UTC55m
2026-06-30 THY3209 - Jun 30, 14:40 UTCJul 1, 01:00 UTC10h 20m
2026-06-29 THY3201 - Jun 29, 20:19 UTCJun 30, 08:40 UTC12h 21m
2026-06-29 THY27M - Jun 29, 11:29 UTCJun 29, 12:14 UTC45m
2026-06-29 THY34Q XXX → ECN Jun 29, 09:20 UTCJun 29, 10:00 UTC40m
2026-06-28 THY3225 - Jun 28, 15:55 UTCJun 29, 03:25 UTC11h 30m
2026-06-27 THY3201 - Jun 27, 19:59 UTCJun 28, 08:14 UTC12h 15m
2026-06-26 THY3241 AOE → AOE Jun 26, 19:45 UTCJun 27, 08:10 UTC12h 25m
2026-06-26 THY27M - Jun 26, 16:14 UTCJun 26, 16:49 UTC35m
2026-06-26 THY34Q - Jun 26, 14:25 UTCJun 26, 15:05 UTC40m
2026-06-25 THY3241 AOE → AOE Jun 25, 20:09 UTCJun 26, 07:45 UTC11h 35m
2026-06-24 THY3235 IST → AMS Jun 24, 20:54 UTCJun 25, 08:04 UTC11h 10m
2026-06-24 THY3209 - Jun 24, 15:05 UTCJun 24, 17:25 UTC2h 20m
2026-06-23 THY3208 - Jun 23, 14:55 UTCJun 23, 16:44 UTC1h 50m
2026-06-22 THY3239 - Jun 22, 20:34 UTCJun 23, 08:00 UTC11h 25m
2026-06-22 THY3209 - Jun 22, 00:34 UTCJun 22, 01:00 UTC25m
2026-06-21 THY3209 - Jun 21, 14:34 UTCJun 21, 23:55 UTC9h 20m
2026-06-20 THY3225 - Jun 20, 15:54 UTCJun 21, 03:19 UTC11h 25m
2026-06-18 THY3237 - Jun 18, 17:05 UTCJun 19, 01:34 UTC8h 29m
2026-06-17 THY3235 IST → AMS Jun 17, 20:55 UTCJun 18, 07:35 UTC10h 40m
2026-06-17 THY27M - Jun 17, 11:15 UTCJun 17, 11:55 UTC40m
2026-06-17 THY34Q - Jun 17, 09:10 UTCJun 17, 09:45 UTC35m
2026-06-16 THY3208 - Jun 16, 14:39 UTCJun 17, 00:35 UTC9h 56m
2026-06-13 THY3225 - Jun 13, 17:00 UTCJun 14, 03:00 UTC10h 0m

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

Mode-S 4BB323 frequently asked

What is Mode-S code 4BB323?
4BB323 is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-LYC.
Where is Mode-S 4BB323 registered?
Mode-S code 4BB323 is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BB323 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BB323, octal 22731443, decimal 4,961,059.
What flights does 4BB323 operate?
Mode-S 4BB323 has broadcast 20 distinct callsigns, including THY34Q, THY27M, THY3225, THY3241, THY3235.