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sensors Mode-S transponder

4BB19A

ICAO 24-bit transponder address · allocated to Turkey

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

Hex
4BB19A
Octal
22730632
Decimal
4,960,666
Country
TR
Tail
TC-LLZ
Type
B789
No current signal · last broadcast Jul 26, 20:00 UTC
Flights observed
254
Distinct callsigns
20
Country
TR
Last broadcast
Jul 26, 20:00 UTC

Last known position

Most recent position reported by Mode-S 4BB19A.

Country allocation

The ICAO 24-bit address 4BB19A 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
THY184 - 24 2026-07-12
THY281 Turkish Airlines 14 2026-07-26
THY311 Turkish Airlines 10 2026-06-11
THY171 - 10 2026-07-15
THY299 - 8 2026-07-20
THY65 Turkish Airlines 7 2026-07-24
THY170 - 7 2026-07-14
THY84U Turkish Airlines 6 2026-07-18
THY69 Turkish Airlines 6 2026-06-29
THY67C - 6 2026-07-18
THY298 - 6 2026-07-19
THY224 Turkish Airlines 6 2026-05-05
THY182 Turkish Airlines 6 2026-07-21
THY11 Turkish Airlines 6 2026-04-22
THY7KG - 5 2026-07-13
THY64 Turkish Airlines 5 2026-07-23
THY1RT Turkish Airlines 5 2026-05-04
THY12 Turkish Airlines 5 2026-04-23
THY9LC - 4 2026-06-29
THY91J - 4 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 THY5NX - Jul 26, 18:05 UTCJul 26, 20:00 UTC1h 55m
2026-07-26 THY3ED DUB → IST Jul 26, 14:05 UTCJul 26, 16:10 UTC2h 5m
2026-07-26 THY281 PVG → IST Jul 26, 01:55 UTCJul 26, 11:10 UTC9h 16m
2026-07-25 THY281 PVG → IST Jul 25, 14:35 UTCJul 26, 11:10 UTC20h 36m
2026-07-25 THY281 PVG → IST Jul 25, 13:00 UTCJul 26, 11:10 UTC22h 11m
2026-07-25 THY47G BOM → IST Jul 25, 08:25 UTCJul 25, 08:35 UTC10m
2026-07-25 THY47G BOM → IST Jul 25, 02:00 UTCJul 25, 07:30 UTC5h 30m
2026-07-24 THY59E IST → BOM Jul 24, 17:35 UTCJul 24, 23:35 UTC6h 0m
2026-07-24 THY65 BKK → IST Jul 24, 13:20 UTCJul 24, 13:35 UTC15m
2026-07-24 THY65 BKK → IST Jul 24, 04:25 UTCJul 24, 12:35 UTC8h 10m
2026-07-23 THY64 IST → BKK Jul 23, 17:50 UTCJul 24, 02:05 UTC8h 15m
2026-07-23 THY5YR DFW → IST Jul 23, 04:00 UTCJul 23, 14:45 UTC10h 45m
2026-07-22 THY83J IST → DFW Jul 22, 12:55 UTCJul 23, 01:15 UTC12h 20m
2026-07-21 THY182 CUN → IST Jul 21, 19:15 UTCJul 22, 05:25 UTC10h 10m
2026-07-21 THY182 CUN → IST Jul 21, 15:20 UTCJul 21, 17:05 UTC1h 45m
2026-07-20 THY182 CUN → IST Jul 20, 23:50 UTCJul 21, 13:05 UTC13h 15m
2026-07-20 THY2NA IST → FCO Jul 20, 18:20 UTCJul 20, 20:05 UTC1h 45m
2026-07-20 THY3GK - Jul 20, 14:05 UTCJul 20, 16:05 UTC2h 0m
2026-07-20 THY299 - Jul 20, 11:20 UTCJul 20, 11:45 UTC25m
2026-07-20 THY299 - Jul 20, 03:30 UTCJul 20, 10:45 UTC7h 15m
2026-07-19 THY298 - Jul 19, 14:20 UTCJul 19, 21:05 UTC6h 45m
2026-07-19 THY298 - Jul 19, 13:30 UTCJul 19, 13:50 UTC20m
2026-07-19 THY1KD VIE → IST Jul 19, 09:00 UTCJul 19, 10:40 UTC1h 40m
2026-07-19 THY7KF IST → VIE Jul 19, 05:20 UTCJul 19, 07:00 UTC1h 40m
2026-07-18 THY84U ORD → IST Jul 18, 17:00 UTCJul 19, 02:40 UTC9h 40m
2026-07-18 THY67C - Jul 18, 04:10 UTCJul 18, 14:50 UTC10h 40m
2026-07-17 THY41J - Jul 17, 15:15 UTCJul 18, 01:45 UTC10h 30m
2026-07-16 THY4JD - Jul 16, 23:10 UTCJul 17, 10:44 UTC11h 35m
2026-07-16 THY4ML - Jul 16, 10:59 UTCJul 16, 19:50 UTC8h 50m
2026-07-15 THY4KG - Jul 15, 22:30 UTCJul 16, 08:10 UTC9h 40m
2026-07-15 THY171 - Jul 15, 13:00 UTCJul 15, 13:10 UTC10m
2026-07-15 THY171 - Jul 15, 05:10 UTCJul 15, 12:10 UTC7h 0m
2026-07-15 THY171 - Jul 15, 03:00 UTCJul 15, 03:15 UTC15m
2026-07-14 THY170 - Jul 14, 23:55 UTCJul 15, 00:25 UTC30m
2026-07-14 THY170 - Jul 14, 14:35 UTCJul 14, 22:15 UTC7h 40m
2026-07-14 THY91J - Jul 14, 02:35 UTCJul 14, 12:15 UTC9h 40m
2026-07-13 THY7KG - Jul 13, 12:20 UTCJul 13, 22:35 UTC10h 15m
2026-07-12 THY184 - Jul 12, 19:10 UTCJul 13, 06:40 UTC11h 30m
2026-07-12 THY184 - Jul 12, 15:20 UTCJul 12, 17:01 UTC1h 40m
2026-07-11 THY184 - Jul 11, 23:30 UTCJul 12, 13:05 UTC13h 35m
2026-07-11 THY4ML - Jul 11, 11:20 UTCJul 11, 20:10 UTC8h 50m
2026-07-10 THY4KG - Jul 10, 22:25 UTCJul 11, 08:25 UTC10h 0m
2026-07-10 THY32G - Jul 10, 02:15 UTCJul 10, 12:10 UTC9h 55m
2026-07-09 THY31K - Jul 9, 12:15 UTCJul 9, 23:50 UTC11h 35m
2026-07-08 THY184 IST → MEX Jul 8, 19:15 UTCJul 9, 07:00 UTC11h 45m
2026-07-08 THY184 IST → MEX Jul 8, 15:20 UTCJul 8, 17:05 UTC1h 45m
2026-07-07 THY184 IST → MEX Jul 7, 23:25 UTCJul 8, 13:00 UTC13h 35m
2026-07-07 THY171 - Jul 7, 13:00 UTCJul 7, 13:25 UTC25m
2026-07-07 THY171 - Jul 7, 04:35 UTCJul 7, 12:25 UTC7h 50m
2026-07-07 THY171 - Jul 7, 02:30 UTCJul 7, 02:45 UTC15m

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

Mode-S 4BB19A frequently asked

What is Mode-S code 4BB19A?
4BB19A is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-LLZ.
Where is Mode-S 4BB19A registered?
Mode-S code 4BB19A is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BB19A broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BB19A, octal 22730632, decimal 4,960,666.
What flights does 4BB19A operate?
Mode-S 4BB19A has broadcast 20 distinct callsigns, including THY184, THY281, THY311, THY171, THY299.