Apparatus

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sensors Mode-S transponder

4BB159

ICAO 24-bit transponder address · allocated to Turkey

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

Hex
4BB159
Octal
22730531
Decimal
4,960,601
Country
TR
Tail
TC-LJY
Type
B77L
No current signal · last broadcast Jul 26, 22:15 UTC
Flights observed
276
Distinct callsigns
20
Country
TR
Last broadcast
Jul 26, 22:15 UTC

Last known position

Most recent position reported by Mode-S 4BB159.

Country allocation

The ICAO 24-bit address 4BB159 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 2026-07-24
THY6354 Turkish Airlines 11 2026-07-24
THY6203 Turkish Airlines 9 2026-07-26
THY6202 Turkish Airlines 9 2026-07-25
THY6626 - 8 2026-07-06
THY6267 - 8 2026-06-30
THY6058 - 8 2026-07-09
THY6309 Turkish Airlines 7 2026-07-22
THY6591 - 6 2026-06-19
THY6589 - 6 2026-07-02
THY6351 Turkish Airlines 6 2026-06-10
THY6350 Turkish Airlines 6 2026-06-09
THY6090 - 6 2026-04-17
THY6057 - 6 2026-07-08
THY6023 Turkish Airlines 6 2026-06-07
THY6627 - 5 2026-07-06
THY6593 - 5 2026-07-17
THY6588 - 5 2026-07-01
THY6587 Turkish Airlines 5 2026-07-21
THY6266 Turkish Airlines 5 2026-06-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 THY6583 CAN → IST Jul 26, 20:20 UTCJul 26, 22:15 UTC1h 55m
2026-07-26 THY6582 - Jul 26, 05:40 UTCJul 26, 07:30 UTC1h 51m
2026-07-26 THY6203 MST → IST Jul 26, 01:50 UTCJul 26, 02:10 UTC20m
2026-07-25 THY6203 MST → IST Jul 25, 17:40 UTCJul 26, 01:15 UTC7h 35m
2026-07-25 THY6202 MST → IST Jul 25, 00:40 UTCJul 25, 13:30 UTC12h 50m
2026-07-24 THY6355 MXP → IST Jul 24, 12:45 UTCJul 24, 15:05 UTC2h 20m
2026-07-24 THY6355 MXP → IST Jul 24, 04:35 UTCJul 24, 04:50 UTC15m
2026-07-24 THY6354 LGW → IST Jul 24, 01:00 UTCJul 24, 01:25 UTC25m
2026-07-23 THY6354 LGW → IST Jul 23, 16:15 UTCJul 24, 00:10 UTC7h 55m
2026-07-22 THY6309 ISL → AMS Jul 22, 16:20 UTCJul 23, 10:25 UTC18h 5m
2026-07-22 THY6309 ISL → AMS Jul 22, 15:10 UTCJul 23, 10:25 UTC19h 15m
2026-07-22 THY6309 ISL → AMS Jul 22, 13:30 UTCJul 23, 10:25 UTC20h 55m
2026-07-21 THY6587 MCT → MCT Jul 21, 21:40 UTCJul 22, 11:40 UTC14h 0m
2026-07-21 THY6587 MCT → MCT Jul 21, 14:20 UTCJul 22, 11:40 UTC21h 20m
2026-07-21 THY6587 MCT → MCT Jul 21, 06:20 UTCJul 22, 05:25 UTC23h 5m
2026-07-21 THY6586 IST → ALA Jul 21, 04:50 UTCJul 21, 21:50 UTC17h 0m
2026-07-20 THY6367 HKG → IST Jul 20, 12:55 UTCJul 21, 00:00 UTC11h 5m
2026-07-20 THY6364 AMM → HYD Jul 20, 00:15 UTCJul 20, 10:25 UTC10h 10m
2026-07-19 THY6355 MXP → IST Jul 19, 10:50 UTCJul 19, 20:35 UTC9h 45m
2026-07-19 THY6355 MXP → IST Jul 19, 09:40 UTCJul 19, 10:00 UTC20m
2026-07-19 THY6354 LGW → IST Jul 19, 06:50 UTCJul 19, 07:15 UTC25m
2026-07-18 THY6354 LGW → IST Jul 18, 22:25 UTCJul 19, 06:00 UTC7h 35m
2026-07-18 THY6474 FRA → IST Jul 18, 17:15 UTCJul 18, 19:35 UTC2h 20m
2026-07-18 THY6473 - Jul 18, 11:35 UTCJul 18, 14:00 UTC2h 25m
2026-07-17 THY6593 - Jul 17, 15:00 UTCJul 18, 08:50 UTC17h 51m
2026-07-17 THY6592 IST → VNO Jul 17, 05:55 UTCJul 17, 23:39 UTC17h 45m
2026-07-16 THY6040 - Jul 16, 18:44 UTCJul 16, 21:15 UTC2h 30m
2026-07-16 THY6040 - Jul 16, 06:25 UTCJul 16, 14:45 UTC8h 20m
2026-07-15 THY6039 - Jul 15, 15:30 UTCJul 16, 03:50 UTC12h 20m
2026-07-15 THY6039 - Jul 15, 01:10 UTCJul 15, 11:30 UTC10h 20m
2026-07-14 THY6056 - Jul 14, 13:55 UTCJul 14, 20:05 UTC6h 10m
2026-07-14 THY6056 - Jul 14, 04:35 UTCJul 14, 10:50 UTC6h 15m
2026-07-13 THY6055 - Jul 13, 19:00 UTCJul 14, 01:25 UTC6h 25m
2026-07-13 THY6055 - Jul 13, 09:55 UTCJul 13, 16:10 UTC6h 15m
2026-07-13 THY6257 - Jul 13, 01:45 UTCJul 13, 04:00 UTC2h 15m
2026-07-12 THY6257 - Jul 12, 17:55 UTCJul 12, 18:10 UTC15m
2026-07-12 THY6256 - Jul 12, 15:20 UTCJul 12, 15:55 UTC35m
2026-07-12 THY6256 - Jul 12, 01:05 UTCJul 12, 13:40 UTC12h 35m
2026-07-11 THY6203 - Jul 11, 13:10 UTCJul 11, 22:20 UTC9h 10m
2026-07-10 THY6202 - Jul 10, 21:25 UTCJul 11, 09:50 UTC12h 25m
2026-07-10 THY6648 - Jul 10, 00:30 UTCJul 10, 18:00 UTC17h 30m
2026-07-09 THY6058 - Jul 9, 14:20 UTCJul 9, 20:30 UTC6h 10m
2026-07-09 THY6058 - Jul 9, 05:45 UTCJul 9, 11:50 UTC6h 5m
2026-07-08 THY6057 - Jul 8, 11:05 UTCJul 9, 02:30 UTC15h 25m
2026-07-08 THY6241 - Jul 8, 07:00 UTCJul 8, 07:25 UTC25m
2026-07-08 THY6241 - Jul 8, 05:10 UTCJul 8, 06:25 UTC1h 15m
2026-07-07 THY6241 - Jul 7, 21:15 UTCJul 7, 21:30 UTC15m
2026-07-07 THY6218 IST → DWC Jul 7, 10:45 UTCJul 7, 18:15 UTC7h 30m
2026-07-07 THY6218 IST → DWC Jul 7, 03:55 UTCJul 7, 08:50 UTC4h 55m
2026-07-06 THY6627 - Jul 6, 22:15 UTCJul 7, 00:15 UTC2h 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-LJY page for operator, model, and routing details .

Mode-S 4BB159 frequently asked

What is Mode-S code 4BB159?
4BB159 is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-LJY.
Where is Mode-S 4BB159 registered?
Mode-S code 4BB159 is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BB159 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BB159, octal 22730531, decimal 4,960,601.
What flights does 4BB159 operate?
Mode-S 4BB159 has broadcast 20 distinct callsigns, including THY6355, THY6354, THY6203, THY6202, THY6626.