Apparatus

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sensors Mode-S transponder

4BB145

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-LJE · BOEING 777-300ER

Hex
4BB145
Octal
22730505
Decimal
4,960,581
Country
TR
Tail
TC-LJE
Type
B77W
No current signal · last broadcast 2d ago
Flights observed
239
Distinct callsigns
20
Country
TR
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S 4BB145.

Country allocation

The ICAO 24-bit address 4BB145 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
THY73 - 11 2026-06-23
THY77J Turkish Airlines 8 2026-06-06
THY72 Turkish Airlines 8 2026-06-21
THY71 Turkish Airlines 8 2026-06-27
THY3 Turkish Airlines 8 2026-05-16
THY27 - 8 2026-07-13
THY90 - 7 2026-07-09
THY70 Turkish Airlines 7 2026-06-26
THY4 Turkish Airlines 7 2026-05-16
THY99D Turkish Airlines 6 2026-06-07
THY91 - 6 2026-07-10
THY55 Turkish Airlines 5 2026-07-03
THY54 - 5 2026-07-03
THY3AX Turkish Airlines 5 2026-06-04
THY2XQ Turkish Airlines 5 2026-06-04
THY26 - 5 2026-07-11
THY2 - 5 2026-06-24
THY1 Turkish Airlines 5 2026-06-23
THY85 Turkish Airlines 4 2026-06-06
THY51 - 4 2026-06-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 THY6998 - Jul 13, 03:50 UTCJul 13, 04:10 UTC20m
2026-07-13 THY27 - Jul 13, 01:25 UTCJul 13, 01:40 UTC15m
2026-07-12 THY27 - Jul 12, 16:15 UTCJul 13, 00:45 UTC8h 30m
2026-07-11 THY26 - Jul 11, 23:00 UTCJul 12, 16:35 UTC17h 35m
2026-07-11 THY21 - Jul 11, 11:45 UTCJul 11, 12:00 UTC15m
2026-07-11 THY21 - Jul 11, 02:40 UTCJul 11, 11:05 UTC8h 25m
2026-07-11 THY21 - Jul 11, 01:30 UTCJul 11, 01:45 UTC15m
2026-07-10 THY20 - Jul 10, 23:00 UTCJul 10, 23:20 UTC20m
2026-07-10 THY20 - Jul 10, 14:25 UTCJul 10, 22:05 UTC7h 41m
2026-07-10 THY1KD - Jul 10, 08:55 UTCJul 10, 10:30 UTC1h 35m
2026-07-10 THY7KF - Jul 10, 05:15 UTCJul 10, 07:05 UTC1h 50m
2026-07-10 THY91 - Jul 10, 00:55 UTCJul 10, 01:20 UTC25m
2026-07-09 THY91 - Jul 9, 14:40 UTCJul 10, 00:15 UTC9h 35m
2026-07-09 THY90 - Jul 9, 07:50 UTCJul 9, 08:15 UTC25m
2026-07-08 THY90 - Jul 8, 23:15 UTCJul 9, 07:00 UTC7h 45m
2026-07-08 THY2NA - Jul 8, 18:30 UTCJul 8, 20:15 UTC1h 45m
2026-07-08 THY3GK - Jul 8, 15:20 UTCJul 8, 16:00 UTC40m
2026-07-07 THY4RN - Jul 7, 21:50 UTCJul 8, 00:45 UTC2h 55m
2026-07-07 THY9PG CDG → SAW Jul 7, 16:30 UTCJul 7, 19:50 UTC3h 20m
2026-07-07 THY8 - Jul 7, 05:15 UTCJul 7, 14:15 UTC9h 0m
2026-07-06 THY7 IST → IAD Jul 6, 13:25 UTCJul 7, 00:15 UTC10h 50m
2026-07-06 THY199 - Jul 6, 00:45 UTCJul 6, 01:10 UTC25m
2026-07-05 THY199 - Jul 5, 13:15 UTCJul 6, 00:05 UTC10h 50m
2026-07-04 THY198 - Jul 4, 23:30 UTCJul 5, 09:55 UTC10h 25m
2026-07-04 THY4SD - Jul 4, 18:15 UTCJul 4, 21:05 UTC2h 50m
2026-07-04 THY2LD - Jul 4, 12:25 UTCJul 4, 16:00 UTC3h 35m
2026-07-04 THY2NP - Jul 4, 07:50 UTCJul 4, 08:35 UTC45m
2026-07-04 THY3YH - Jul 4, 05:35 UTCJul 4, 06:10 UTC35m
2026-07-03 THY55 SIN → IST Jul 3, 15:30 UTCJul 4, 01:00 UTC9h 30m
2026-07-03 THY54 - Jul 3, 00:35 UTCJul 3, 09:35 UTC9h 0m
2026-07-02 THY54 - Jul 2, 23:25 UTCJul 2, 23:50 UTC25m
2026-07-02 THY3RU CMN → IST Jul 2, 16:45 UTCJul 2, 20:40 UTC3h 55m
2026-07-02 THY5RM - Jul 2, 09:45 UTCJul 2, 13:45 UTC4h 0m
2026-07-02 THY89 PEK → IST Jul 2, 01:25 UTCJul 2, 01:50 UTC25m
2026-07-01 THY89 PEK → IST Jul 1, 16:40 UTCJul 2, 00:50 UTC8h 10m
2026-07-01 THY88 IST → PEK Jul 1, 06:30 UTCJul 1, 06:50 UTC20m
2026-06-30 THY88 IST → PEK Jun 30, 22:55 UTCJul 1, 00:45 UTC1h 50m
2026-06-30 THY4YH - Jun 30, 19:10 UTCJun 30, 19:50 UTC40m
2026-06-30 THY80E - Jun 30, 16:45 UTCJun 30, 17:20 UTC35m
2026-06-30 THY3MJ - Jun 30, 10:55 UTCJun 30, 14:20 UTC3h 25m
2026-06-30 THY30S - Jun 30, 05:25 UTCJun 30, 08:30 UTC3h 5m
2026-06-30 THY27 PVG → IST Jun 30, 01:55 UTCJun 30, 02:15 UTC20m
2026-06-29 THY27 PVG → IST Jun 29, 16:39 UTCJun 30, 01:14 UTC8h 35m
2026-06-28 THY26 - Jun 28, 23:04 UTCJun 29, 17:05 UTC18h 0m
2026-06-28 THY76Y - Jun 28, 03:00 UTCJun 28, 14:34 UTC11h 35m
2026-06-27 THY75D IST → YVR Jun 27, 13:24 UTCJun 28, 00:50 UTC11h 25m
2026-06-27 THY2NP - Jun 27, 08:20 UTCJun 27, 09:04 UTC45m
2026-06-27 THY3YH - Jun 27, 05:49 UTCJun 27, 06:25 UTC35m
2026-06-27 THY71 HKG → IST Jun 27, 01:04 UTCJun 27, 01:35 UTC30m
2026-06-26 THY71 HKG → IST Jun 26, 15:39 UTCJun 27, 00:25 UTC8h 45m

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

Mode-S 4BB145 frequently asked

What is Mode-S code 4BB145?
4BB145 is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-LJE.
Where is Mode-S 4BB145 registered?
Mode-S code 4BB145 is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BB145 broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BB145, octal 22730505, decimal 4,960,581.
What flights does 4BB145 operate?
Mode-S 4BB145 has broadcast 20 distinct callsigns, including THY73, THY77J, THY72, THY71, THY3.