Apparatus

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sensors Mode-S transponder

4BB18D

ICAO 24-bit transponder address · allocated to Turkey

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

Hex
4BB18D
Octal
22730615
Decimal
4,960,653
Country
TR
Tail
TC-LLM
Type
B789
No current signal · last broadcast 2d ago
Flights observed
209
Distinct callsigns
20
Country
TR
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S 4BB18D.

Country allocation

The ICAO 24-bit address 4BB18D 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
THY9LC - 15 2026-06-17
THY69W Turkish Airlines 15 2026-06-16
THY91J - 10 2026-06-19
THY7KG Turkish Airlines 9 2026-06-18
THY55 Turkish Airlines 6 2026-06-13
THY3MA - 6 2026-07-07
THY299 Turkish Airlines 6 2026-05-23
THY281 - 6 2026-06-24
THY184 Turkish Airlines 6 2026-05-20
THY5YR - 5 2026-07-11
THY54 Turkish Airlines 5 2026-06-11
THY51 - 5 2026-06-20
THY47B - 5 2026-07-07
THY171 Turkish Airlines 5 2026-06-07
THY170 Turkish Airlines 5 2026-06-06
THY83J - 4 2026-07-10
THY65 Turkish Airlines 4 2026-05-29
THY24 Turkish Airlines 4 2026-05-05
THY8MT Turkish Airlines 3 2026-06-17
THY84U - 3 2026-07-02

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-11 THY5YR - Jul 11, 03:01 UTCJul 11, 14:05 UTC11h 5m
2026-07-10 THY83J - Jul 10, 12:05 UTCJul 11, 00:45 UTC12h 40m
2026-07-07 THY3MA - Jul 7, 20:50 UTCJul 8, 05:35 UTC8h 45m
2026-07-07 THY3MA - Jul 7, 19:20 UTCJul 7, 20:45 UTC1h 25m
2026-07-07 THY47B - Jul 7, 05:30 UTCJul 7, 16:45 UTC11h 15m
2026-07-06 THY87 KIX → IST Jul 6, 13:30 UTCJul 7, 00:05 UTC10h 35m
2026-07-05 THY86 - Jul 5, 23:50 UTCJul 6, 09:35 UTC9h 45m
2026-07-05 THY5YR - Jul 5, 09:50 UTCJul 5, 13:50 UTC4h 0m
2026-07-05 THY5YR - Jul 5, 03:05 UTCJul 5, 06:35 UTC3h 30m
2026-07-04 THY83J IST → DFW Jul 4, 12:15 UTCJul 5, 00:25 UTC12h 10m
2026-07-03 THY41Y - Jul 3, 20:25 UTCJul 4, 07:20 UTC10h 55m
2026-07-03 THY49Q - Jul 3, 05:25 UTCJul 3, 17:30 UTC12h 5m
2026-07-02 THY84U - Jul 2, 17:00 UTCJul 3, 02:10 UTC9h 10m
2026-07-02 THY67C IST → ORD Jul 2, 03:55 UTCJul 2, 14:30 UTC10h 35m
2026-07-01 THY4RN - Jul 1, 22:15 UTCJul 2, 01:25 UTC3h 10m
2026-07-01 THY9PG CDG → SAW Jul 1, 16:45 UTCJul 1, 19:55 UTC3h 10m
2026-07-01 THY2AY - Jul 1, 02:30 UTCJul 1, 13:45 UTC11h 15m
2026-06-30 THY5KM IST → IAH Jun 30, 12:15 UTCJul 1, 00:10 UTC11h 55m
2026-06-29 THY311 DPS → IST Jun 29, 07:20 UTCJun 30, 02:25 UTC19h 6m
2026-06-29 THY310 - Jun 29, 05:20 UTCJun 30, 02:25 UTC21h 6m
2026-06-29 THY310 - Jun 29, 01:20 UTCJun 30, 01:14 UTC23h 55m
2026-06-28 THY310 - Jun 28, 23:50 UTCJun 29, 22:39 UTC22h 50m
2026-06-28 THY1634 - Jun 28, 16:14 UTCJun 28, 18:19 UTC2h 5m
2026-06-28 THY5GJ - Jun 28, 10:50 UTCJun 28, 12:44 UTC1h 55m
2026-06-27 THY3MA - Jun 27, 19:24 UTCJun 28, 05:24 UTC10h 0m
2026-06-27 THY47B - Jun 27, 05:35 UTCJun 27, 16:30 UTC10h 55m
2026-06-26 THY41J MIA → IST Jun 26, 15:25 UTCJun 27, 01:59 UTC10h 35m
2026-06-25 THY4JD - Jun 25, 23:14 UTCJun 26, 11:05 UTC11h 50m
2026-06-25 THY12 - Jun 25, 05:25 UTCJun 25, 14:20 UTC8h 55m
2026-06-24 THY11 IST → JFK Jun 24, 16:29 UTCJun 25, 02:30 UTC10h 0m
2026-06-24 THY281 - Jun 24, 02:05 UTCJun 24, 11:45 UTC9h 40m
2026-06-23 THY281 - Jun 23, 13:29 UTCJun 24, 11:45 UTC22h 15m
2026-06-23 THY281 - Jun 23, 12:40 UTCJun 24, 11:14 UTC22h 35m
2026-06-22 THY41Y - Jun 22, 20:19 UTCJun 23, 07:15 UTC10h 55m
2026-06-22 THY49Q - Jun 22, 05:44 UTCJun 22, 18:09 UTC12h 25m
2026-06-22 THY163 SGN → IST Jun 22, 01:05 UTCJun 22, 01:25 UTC20m
2026-06-21 THY163 SGN → IST Jun 21, 05:20 UTCJun 22, 00:34 UTC19h 15m
2026-06-21 THY163 SGN → IST Jun 21, 03:25 UTCJun 22, 00:34 UTC21h 10m
2026-06-20 THY162 - Jun 20, 23:19 UTCJun 21, 23:14 UTC23h 55m
2026-06-20 THY162 - Jun 20, 23:14 UTCJun 21, 20:14 UTC21h 0m
2026-06-20 THY51 - Jun 20, 13:59 UTCJun 20, 14:29 UTC30m
2026-06-20 THY51 - Jun 20, 01:44 UTCJun 20, 13:24 UTC11h 40m
2026-06-19 THY50 IST → NRT Jun 19, 13:14 UTCJun 19, 23:39 UTC10h 25m
2026-06-19 THY91J - Jun 19, 01:04 UTCJun 19, 10:35 UTC9h 30m
2026-06-18 THY7KG IST → DTW Jun 18, 12:15 UTCJun 18, 22:40 UTC10h 25m
2026-06-17 THY12E - Jun 17, 20:40 UTCJun 18, 08:55 UTC12h 15m
2026-06-17 THY8MT IST → LAX Jun 17, 05:35 UTCJun 17, 18:35 UTC13h 0m
2026-06-17 THY9LC - Jun 17, 00:50 UTCJun 17, 02:45 UTC1h 55m
2026-06-16 THY9LC - Jun 16, 17:49 UTCJun 17, 00:45 UTC6h 56m
2026-06-16 THY69W IST → IAD Jun 16, 05:30 UTCJun 16, 15:50 UTC10h 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-LLM page for operator, model, and routing details .

Mode-S 4BB18D frequently asked

What is Mode-S code 4BB18D?
4BB18D is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-LLM.
Where is Mode-S 4BB18D registered?
Mode-S code 4BB18D is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BB18D 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 4BB18D, octal 22730615, decimal 4,960,653.
What flights does 4BB18D operate?
Mode-S 4BB18D has broadcast 20 distinct callsigns, including THY9LC, THY69W, THY91J, THY7KG, THY55.