Apparatus

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sensors Mode-S transponder

4BB154

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-LJT · BOEING 777-200LR

Hex
4BB154
Octal
22730524
Decimal
4,960,596
Country
TR
Tail
TC-LJT
Type
B77L
Broadcasting now · callsign THY6127 · 39,000 ft
Flights observed
255
Distinct callsigns
20
Country
TR
Last broadcast
1h ago

Current position

4BB154 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4BB154 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
THY6355 Turkish Airlines 11 2026-06-14
THY6626 - 8 2026-06-29
THY6437 - 8 2026-07-02
THY6228 Turkish Airlines 8 2026-04-18
THY6354 - 7 2026-06-13
THY6263 - 6 2026-06-23
THY6591 - 5 2026-07-02
THY6299 - 5 2026-06-03
THY6255 Turkish Airlines 5 2026-04-27
THY6116 - 5 2026-06-19
THY6627 - 4 2026-06-29
THY6590 - 4 2026-07-02
THY6579 - 4 2026-06-13
THY6577 Turkish Airlines 4 2026-06-05
THY6351 Turkish Airlines 4 2026-06-17
THY6297 Turkish Airlines 4 2026-04-15
THY6245 Turkish Airlines 4 2026-04-26
THY6233 - 4 2026-04-13
THY6080 Turkish Airlines 4 2026-06-01
THY6059 - 4 2026-07-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 THY6127 - Jul 14, 20:25 UTCJul 14, 22:45 UTC2h 19m
2026-07-14 THY6127 - Jul 14, 12:55 UTCJul 14, 18:10 UTC5h 15m
2026-07-13 THY6585 - Jul 13, 23:25 UTCJul 14, 08:55 UTC9h 30m
2026-07-13 THY6585 - Jul 13, 12:55 UTCJul 14, 08:55 UTC20h 0m
2026-07-13 THY6585 - Jul 13, 09:15 UTCJul 14, 08:55 UTC23h 40m
2026-07-13 THY6584 - Jul 13, 08:25 UTCJul 14, 07:00 UTC22h 35m
2026-07-12 THY6060 - Jul 12, 20:01 UTCJul 13, 06:01 UTC10h 0m
2026-07-12 THY6059 JFK → ORD Jul 12, 14:20 UTCJul 12, 16:15 UTC1h 55m
2026-07-12 THY6059 - Jul 12, 00:35 UTCJul 12, 10:20 UTC9h 45m
2026-07-11 THY6040 - Jul 11, 18:25 UTCJul 11, 20:50 UTC2h 25m
2026-07-11 THY6040 - Jul 11, 07:40 UTCJul 11, 16:10 UTC8h 30m
2026-07-10 THY6039 ORD → MIA Jul 10, 15:30 UTCJul 11, 05:01 UTC13h 31m
2026-07-10 THY6039 - Jul 10, 01:05 UTCJul 10, 11:55 UTC10h 50m
2026-07-09 THY6251 - Jul 9, 21:50 UTCJul 9, 22:15 UTC25m
2026-07-09 THY6251 - Jul 9, 11:05 UTCJul 9, 21:15 UTC10h 10m
2026-07-08 THY6246 - Jul 8, 21:45 UTCJul 9, 07:45 UTC10h 0m
2026-07-07 THY6367 - Jul 7, 01:30 UTCJul 7, 01:40 UTC10m
2026-07-06 THY6367 - Jul 6, 14:05 UTCJul 7, 00:35 UTC10h 30m
2026-07-06 THY6364 - Jul 6, 01:10 UTCJul 6, 11:45 UTC10h 35m
2026-07-05 THY6406 - Jul 5, 20:05 UTCJul 5, 22:15 UTC2h 10m
2026-07-05 THY6405 - Jul 5, 15:05 UTCJul 5, 17:35 UTC2h 30m
2026-07-05 THY6595 - Jul 5, 01:45 UTCJul 5, 11:05 UTC9h 20m
2026-07-04 THY6595 - Jul 4, 16:20 UTCJul 5, 11:05 UTC18h 45m
2026-07-04 THY6594 - Jul 4, 07:15 UTCJul 5, 02:05 UTC18h 50m
2026-07-04 THY6594 - Jul 4, 06:25 UTCJul 5, 02:05 UTC19h 40m
2026-07-04 THY6428 - Jul 4, 00:20 UTCJul 4, 02:30 UTC2h 10m
2026-07-03 THY6428 - Jul 3, 19:00 UTCJul 3, 21:35 UTC2h 35m
2026-07-03 THY6428 - Jul 3, 12:10 UTCJul 3, 16:00 UTC3h 50m
2026-07-02 THY6591 - Jul 2, 15:50 UTCJul 3, 08:20 UTC16h 30m
2026-07-02 THY6591 - Jul 2, 07:05 UTCJul 3, 07:00 UTC23h 55m
2026-07-02 THY6590 - Jul 2, 06:00 UTCJul 2, 23:25 UTC17h 25m
2026-07-02 THY6437 - Jul 2, 01:15 UTCJul 2, 03:30 UTC2h 15m
2026-07-01 THY6437 - Jul 1, 20:45 UTCJul 1, 22:10 UTC1h 25m
2026-07-01 THY6437 - Jul 1, 14:20 UTCJul 1, 17:10 UTC2h 50m
2026-06-30 THY6587 - Jun 30, 13:35 UTCJul 1, 05:50 UTC16h 15m
2026-06-30 THY6587 - Jun 30, 05:05 UTCJul 1, 04:50 UTC23h 45m
2026-06-30 THY6586 - Jun 30, 04:05 UTCJun 30, 20:50 UTC16h 45m
2026-06-29 THY6627 - Jun 29, 12:55 UTCJun 30, 00:04 UTC11h 10m
2026-06-29 THY6626 - Jun 29, 08:04 UTCJun 29, 10:04 UTC2h 0m
2026-06-28 THY6626 - Jun 28, 18:19 UTCJun 29, 04:30 UTC10h 10m
2026-06-27 THY6020 - Jun 27, 19:24 UTCJun 28, 04:29 UTC9h 5m
2026-06-27 THY6019 ATL → YYZ Jun 27, 15:34 UTCJun 27, 17:14 UTC1h 40m
2026-06-27 THY6019 - Jun 27, 01:24 UTCJun 27, 12:09 UTC10h 45m
2026-06-26 THY6259 - Jun 26, 21:55 UTCJun 26, 22:19 UTC25m
2026-06-26 THY6259 - Jun 26, 20:15 UTCJun 26, 21:24 UTC1h 10m
2026-06-26 THY6259 - Jun 26, 12:10 UTCJun 26, 12:19 UTC10m
2026-06-26 THY6197 - Jun 26, 08:10 UTCJun 26, 08:50 UTC40m
2026-06-26 THY6197 - Jun 26, 01:05 UTCJun 26, 07:24 UTC6h 20m
2026-06-25 THY6197 - Jun 25, 18:19 UTCJun 25, 23:14 UTC4h 55m
2026-06-25 THY6034 - Jun 25, 02:49 UTCJun 25, 14:09 UTC11h 20m

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

Mode-S 4BB154 frequently asked

What is Mode-S code 4BB154?
4BB154 is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-LJT.
Where is Mode-S 4BB154 registered?
Mode-S code 4BB154 is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BB154 broadcasting right now?
Yes. Mode-S 4BB154 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BB154, octal 22730524, decimal 4,960,596.
What flights does 4BB154 operate?
Mode-S 4BB154 has broadcast 20 distinct callsigns, including THY6355, THY6626, THY6437, THY6228, THY6354.