Apparatus

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sensors Mode-S transponder

4BB187

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-LLG · BOEING 787-9 Dreamliner

Hex
4BB187
Octal
22730607
Decimal
4,960,647
Country
TR
Tail
TC-LLG
Type
B789
No current signal · last broadcast 1d ago
Flights observed
240
Distinct callsigns
20
Country
TR
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 4BB187.

Country allocation

The ICAO 24-bit address 4BB187 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
THY181 Turkish Airlines 19 2026-05-21
THY281 - 10 2026-06-19
THY224 Turkish Airlines 10 2026-05-27
THY311 Turkish Airlines 9 2026-05-29
THY4JD - 8 2026-06-16
THY41J Turkish Airlines 7 2026-06-17
THY223 Turkish Airlines 7 2026-05-26
THY197 - 7 2026-07-02
THY196 - 7 2026-07-02
THY87 - 6 2026-07-10
THY67C Turkish Airlines 6 2026-07-01
THY5KM Turkish Airlines 6 2026-04-14
THY2AY Turkish Airlines 6 2026-04-15
THY184 Turkish Airlines 6 2026-06-21
THY84U - 5 2026-07-01
THY519 - 5 2026-04-16
THY310 Turkish Airlines 5 2026-05-27
THY301 Turkish Airlines 5 2026-07-01
THY83J Turkish Airlines 4 2026-07-07
THY5YR - 4 2026-07-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-12 THY2JV - Jul 12, 19:15 UTCJul 12, 20:10 UTC55m
2026-07-12 THY9QA - Jul 12, 16:50 UTCJul 12, 17:30 UTC40m
2026-07-12 THY125 - Jul 12, 13:20 UTCJul 12, 13:45 UTC25m
2026-07-12 THY125 - Jul 12, 02:30 UTCJul 12, 12:45 UTC10h 15m
2026-07-11 THY124 - Jul 11, 13:20 UTCJul 11, 23:40 UTC10h 20m
2026-07-10 THY41Y - Jul 10, 20:05 UTCJul 11, 07:10 UTC11h 5m
2026-07-10 THY49Q - Jul 10, 05:30 UTCJul 10, 18:00 UTC12h 30m
2026-07-10 THY87 - Jul 10, 00:55 UTCJul 10, 01:15 UTC20m
2026-07-09 THY87 - Jul 9, 13:35 UTCJul 10, 00:15 UTC10h 40m
2026-07-08 THY86 - Jul 8, 23:40 UTCJul 9, 09:40 UTC10h 0m
2026-07-08 THY5YR - Jul 8, 03:40 UTCJul 8, 14:45 UTC11h 5m
2026-07-07 THY83J IST → DFW Jul 7, 12:40 UTCJul 8, 00:30 UTC11h 50m
2026-07-06 THY3CM - Jul 6, 20:15 UTCJul 7, 07:20 UTC11h 5m
2026-07-06 THY89J - Jul 6, 05:35 UTCJul 6, 17:40 UTC12h 5m
2026-07-06 THY87 KIX → IST Jul 6, 00:35 UTCJul 6, 00:55 UTC20m
2026-07-05 THY87 KIX → IST Jul 5, 13:30 UTCJul 6, 00:00 UTC10h 30m
2026-07-04 THY86 - Jul 4, 23:50 UTCJul 5, 09:45 UTC9h 55m
2026-07-04 THY5YR - Jul 4, 03:10 UTCJul 4, 14:05 UTC10h 55m
2026-07-03 THY83J IST → DFW Jul 3, 12:30 UTCJul 4, 00:40 UTC12h 10m
2026-07-02 THY197 - Jul 2, 23:40 UTCJul 3, 07:45 UTC8h 5m
2026-07-02 THY196 - Jul 2, 21:05 UTCJul 2, 21:25 UTC20m
2026-07-02 THY196 - Jul 2, 15:05 UTCJul 2, 15:20 UTC15m
2026-07-02 THY196 - Jul 2, 13:35 UTCJul 2, 14:00 UTC25m
2026-07-02 THY3YB - Jul 2, 09:05 UTCJul 2, 11:05 UTC2h 0m
2026-07-02 THY4XL - Jul 2, 04:50 UTCJul 2, 06:51 UTC2h 1m
2026-07-01 THY84U - Jul 1, 16:40 UTCJul 2, 02:15 UTC9h 35m
2026-07-01 THY67C IST → ORD Jul 1, 03:55 UTCJul 1, 14:20 UTC10h 25m
2026-07-01 THY301 NRT → IST Jul 1, 00:25 UTCJul 1, 00:50 UTC25m
2026-06-30 THY301 NRT → IST Jun 30, 12:25 UTCJun 30, 23:55 UTC11h 30m
2026-06-29 THY300 - Jun 29, 23:25 UTCJun 30, 09:40 UTC10h 16m
2026-06-29 THY5YR - Jun 29, 02:54 UTCJun 29, 13:59 UTC11h 5m
2026-06-28 THY83J IST → DFW Jun 28, 12:29 UTCJun 29, 00:10 UTC11h 40m
2026-06-27 THY12E - Jun 27, 21:15 UTCJun 28, 09:39 UTC12h 25m
2026-06-27 THY8MT IST → LAX Jun 27, 05:35 UTCJun 27, 18:29 UTC12h 55m
2026-06-26 THY84U - Jun 26, 17:09 UTCJun 27, 02:50 UTC9h 40m
2026-06-26 THY67C IST → ORD Jun 26, 03:50 UTCJun 26, 14:29 UTC10h 40m
2026-06-26 THY301 NRT → IST Jun 26, 00:24 UTCJun 26, 00:35 UTC10m
2026-06-25 THY301 NRT → IST Jun 25, 12:19 UTCJun 25, 23:39 UTC11h 20m
2026-06-25 THY300 - Jun 25, 01:19 UTCJun 25, 10:20 UTC9h 0m
2026-06-24 THY171 - Jun 24, 11:39 UTCJun 24, 11:59 UTC20m
2026-06-24 THY171 - Jun 24, 02:20 UTCJun 24, 11:05 UTC8h 45m
2026-06-24 THY171 - Jun 24, 01:39 UTCJun 24, 01:49 UTC10m
2026-06-23 THY170 IST → HKG Jun 23, 23:05 UTCJun 23, 23:34 UTC30m
2026-06-23 THY170 IST → HKG Jun 23, 13:50 UTCJun 23, 22:29 UTC8h 40m
2026-06-23 THY197 - Jun 23, 10:59 UTCJun 23, 11:19 UTC20m
2026-06-23 THY197 - Jun 23, 08:59 UTCJun 23, 10:24 UTC1h 25m
2026-06-23 THY197 - Jun 23, 01:35 UTCJun 23, 01:45 UTC10m
2026-06-22 THY196 - Jun 22, 21:00 UTCJun 22, 21:19 UTC20m
2026-06-22 THY196 - Jun 22, 13:44 UTCJun 22, 15:35 UTC1h 50m
2026-06-21 THY184 IST → MEX Jun 21, 19:55 UTCJun 22, 07:25 UTC11h 30m

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

Mode-S 4BB187 frequently asked

What is Mode-S code 4BB187?
4BB187 is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-LLG.
Where is Mode-S 4BB187 registered?
Mode-S code 4BB187 is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BB187 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BB187, octal 22730607, decimal 4,960,647.
What flights does 4BB187 operate?
Mode-S 4BB187 has broadcast 20 distinct callsigns, including THY181, THY281, THY224, THY311, THY4JD.