Apparatus

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sensors Mode-S transponder

4BB142

ICAO 24-bit transponder address · allocated to Turkey

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

Hex
4BB142
Octal
22730502
Decimal
4,960,578
Country
TR
Tail
TC-LJB
Type
B77W
Broadcasting now · callsign THY6 · 35,000 ft
Flights observed
239
Distinct callsigns
20
Country
TR
Last broadcast
54m ago

Current position

4BB142 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4BB142 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
THY1 - 12 2026-07-08
THY91 - 10 2026-07-11
THY90 - 9 2026-07-10
THY27 Turkish Airlines 9 2026-06-20
THY2 - 9 2026-07-09
THY6KL - 8 2026-07-04
THY6 - 8 2026-07-14
THY8FW - 7 2026-07-04
THY73 Turkish Airlines 7 2026-04-17
THY5 - 7 2026-07-13
THY26 - 7 2026-06-18
THY9 Turkish Airlines 6 2026-04-17
THY71 Turkish Airlines 6 2026-06-17
THY199 - 5 2026-07-07
THY89 Turkish Airlines 4 2026-07-04
THY86 Turkish Airlines 4 2026-05-03
THY85 - 4 2026-06-24
THY84 - 4 2026-06-23
THY70 Turkish Airlines 4 2026-06-16
THY3YH Turkish Airlines 4 2026-06-01

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 THY6 - Jul 14, 01:25 UTCJul 14, 02:30 UTC1h 5m
2026-07-13 THY5 - Jul 13, 12:00 UTCJul 13, 22:50 UTC10h 50m
2026-07-13 THY32W - Jul 13, 01:30 UTCJul 13, 07:25 UTC5h 55m
2026-07-12 THY51Q - Jul 12, 17:40 UTCJul 12, 22:50 UTC5h 10m
2026-07-12 THY5YR - Jul 12, 02:50 UTCJul 12, 14:15 UTC11h 25m
2026-07-11 THY83J - Jul 11, 12:20 UTCJul 12, 00:25 UTC12h 5m
2026-07-11 THY2MT - Jul 11, 08:01 UTCJul 11, 08:55 UTC55m
2026-07-11 THY7PW - Jul 11, 05:25 UTCJul 11, 06:15 UTC50m
2026-07-11 THY91 - Jul 11, 00:30 UTCJul 11, 00:55 UTC25m
2026-07-10 THY91 - Jul 10, 14:20 UTCJul 10, 23:55 UTC9h 36m
2026-07-10 THY90 - Jul 10, 07:55 UTCJul 10, 08:20 UTC25m
2026-07-09 THY90 - Jul 9, 23:20 UTCJul 10, 07:00 UTC7h 40m
2026-07-09 THY2 - Jul 9, 01:00 UTCJul 9, 10:00 UTC9h 0m
2026-07-08 THY1 - Jul 8, 11:45 UTCJul 8, 21:30 UTC9h 45m
2026-07-07 THY199 - Jul 7, 13:25 UTCJul 8, 00:20 UTC10h 55m
2026-07-06 THY198 - Jul 6, 23:40 UTCJul 7, 10:00 UTC10h 20m
2026-07-06 THY6 - Jul 6, 03:20 UTCJul 6, 12:55 UTC9h 35m
2026-07-05 THY5 IST → ORD Jul 5, 13:30 UTCJul 6, 00:45 UTC11h 15m
2026-07-05 THY2 - Jul 5, 01:15 UTCJul 5, 09:50 UTC8h 35m
2026-07-04 THY1 IST → JFK Jul 4, 11:55 UTCJul 4, 22:20 UTC10h 25m
2026-07-04 THY6KL - Jul 4, 08:00 UTCJul 4, 09:05 UTC1h 5m
2026-07-04 THY8FW - Jul 4, 05:05 UTCJul 4, 06:05 UTC1h 0m
2026-07-04 THY89 PEK → IST Jul 4, 01:30 UTCJul 4, 01:50 UTC20m
2026-07-03 THY89 PEK → IST Jul 3, 16:35 UTCJul 4, 00:45 UTC8h 10m
2026-07-03 THY88 IST → PEK Jul 3, 06:40 UTCJul 3, 07:00 UTC20m
2026-07-02 THY88 IST → PEK Jul 2, 23:00 UTCJul 3, 00:45 UTC1h 45m
2026-07-02 THY12 - Jul 2, 05:00 UTCJul 2, 13:45 UTC8h 45m
2026-07-01 THY11 IST → JFK Jul 1, 16:10 UTCJul 2, 02:10 UTC10h 0m
2026-07-01 THY6 - Jul 1, 01:55 UTCJul 1, 11:45 UTC9h 50m
2026-06-30 THY5 IST → ORD Jun 30, 12:05 UTCJun 30, 22:35 UTC10h 30m
2026-06-30 THY6KL - Jun 30, 08:10 UTCJun 30, 09:10 UTC1h 0m
2026-06-30 THY8FW - Jun 30, 04:55 UTCJun 30, 05:55 UTC1h 0m
2026-06-30 THY91 ICN → IST Jun 30, 00:39 UTCJun 30, 01:04 UTC25m
2026-06-29 THY91 ICN → IST Jun 29, 22:49 UTCJun 30, 00:00 UTC1h 10m
2026-06-29 THY91 ICN → IST Jun 29, 14:25 UTCJun 29, 14:39 UTC15m
2026-06-29 THY90 - Jun 29, 07:59 UTCJun 29, 08:24 UTC25m
2026-06-28 THY90 - Jun 28, 23:25 UTCJun 29, 07:09 UTC7h 45m
2026-06-28 THY12 - Jun 28, 05:49 UTCJun 28, 14:34 UTC8h 45m
2026-06-27 THY11 IST → JFK Jun 27, 16:14 UTCJun 28, 01:55 UTC9h 40m
2026-06-27 THY8LV - Jun 27, 02:59 UTCJun 27, 11:59 UTC9h 0m
2026-06-26 THY1GJ VKO → ESB Jun 26, 14:29 UTCJun 27, 00:20 UTC9h 50m
2026-06-26 THY6 - Jun 26, 04:04 UTCJun 26, 11:49 UTC7h 45m
2026-06-26 THY6 - Jun 26, 01:54 UTCJun 26, 04:00 UTC2h 5m
2026-06-25 THY5 IST → ORD Jun 25, 12:15 UTCJun 25, 22:49 UTC10h 35m
2026-06-24 THY85 - Jun 24, 14:20 UTCJun 25, 01:30 UTC11h 10m
2026-06-23 THY84 - Jun 23, 23:39 UTCJun 24, 11:09 UTC11h 30m
2026-06-23 THY3AX - Jun 23, 19:29 UTCJun 23, 20:29 UTC1h 0m
2026-06-23 THY2XQ - Jun 23, 16:35 UTCJun 23, 17:39 UTC1h 5m
2026-06-23 THY12 - Jun 23, 05:09 UTCJun 23, 14:04 UTC8h 55m
2026-06-22 THY11 IST → JFK Jun 22, 16:34 UTCJun 23, 02:45 UTC10h 10m

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

Mode-S 4BB142 frequently asked

What is Mode-S code 4BB142?
4BB142 is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-LJB.
Where is Mode-S 4BB142 registered?
Mode-S code 4BB142 is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BB142 broadcasting right now?
Yes. Mode-S 4BB142 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BB142, octal 22730502, decimal 4,960,578.
What flights does 4BB142 operate?
Mode-S 4BB142 has broadcast 20 distinct callsigns, including THY1, THY91, THY90, THY27, THY2.