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
Broadcasting now · callsign THY170 · 34,975 ft
Flights observed
219
Distinct callsigns
20
Country
TR
Last broadcast
3h ago

Current position

4BB19A is currently broadcasting. Map zoomed to live position.

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 - 11 2026-07-06
THY311 Turkish Airlines 10 2026-06-11
THY171 - 7 2026-07-07
THY69 Turkish Airlines 6 2026-06-29
THY299 - 6 2026-06-27
THY224 Turkish Airlines 6 2026-05-05
THY11 Turkish Airlines 6 2026-04-22
THY84U - 5 2026-06-15
THY7KG - 5 2026-07-13
THY67C Turkish Airlines 5 2026-06-15
THY65 Turkish Airlines 5 2026-04-15
THY1RT Turkish Airlines 5 2026-05-04
THY170 Turkish Airlines 5 2026-07-06
THY12 Turkish Airlines 5 2026-04-23
THY9LC - 4 2026-06-29
THY91J - 4 2026-07-14
THY69W Turkish Airlines 4 2026-06-29
THY64 Turkish Airlines 4 2026-04-15
THY51 Turkish Airlines 4 2026-05-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
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
2026-07-06 THY170 IST → HKG Jul 6, 22:35 UTCJul 6, 23:05 UTC30m
2026-07-06 THY170 IST → HKG Jul 6, 13:30 UTCJul 6, 20:50 UTC7h 20m
2026-07-06 THY281 - Jul 6, 01:40 UTCJul 6, 11:05 UTC9h 25m
2026-07-05 THY281 - Jul 5, 12:35 UTCJul 6, 11:05 UTC22h 30m
2026-07-05 THY2NP - Jul 5, 07:55 UTCJul 5, 08:40 UTC45m
2026-07-05 THY3YH - Jul 5, 05:25 UTCJul 5, 06:00 UTC35m
2026-07-04 THY73 - Jul 4, 01:30 UTCJul 4, 01:50 UTC20m
2026-07-03 THY73 - Jul 3, 16:35 UTCJul 4, 00:40 UTC8h 5m
2026-07-02 THY72 IST → CAN Jul 2, 22:50 UTCJul 3, 06:40 UTC7h 50m
2026-07-02 THY2NA - Jul 2, 18:15 UTCJul 2, 20:10 UTC1h 55m
2026-07-02 THY3GK IST → FCO Jul 2, 14:10 UTCJul 2, 16:05 UTC1h 55m
2026-07-02 THY281 - Jul 2, 02:05 UTCJul 2, 11:30 UTC9h 25m
2026-07-01 THY281 - Jul 1, 12:35 UTCJul 2, 11:30 UTC22h 55m
2026-06-30 THY3MA - Jun 30, 19:20 UTCJul 1, 05:40 UTC10h 20m
2026-06-30 THY47B - Jun 30, 05:35 UTCJun 30, 16:15 UTC10h 40m
2026-06-29 THY9LC - Jun 29, 17:40 UTCJun 30, 02:50 UTC9h 11m
2026-06-29 THY69W IST → IAD Jun 29, 05:04 UTCJun 29, 15:00 UTC9h 55m
2026-06-29 THY69 BKK → IST Jun 29, 01:05 UTCJun 29, 01:20 UTC15m
2026-06-28 THY69 BKK → IST Jun 28, 16:05 UTCJun 29, 00:24 UTC8h 20m
2026-06-27 THY68 - Jun 27, 23:34 UTCJun 28, 08:05 UTC8h 30m
2026-06-27 THY299 - Jun 27, 12:29 UTCJun 27, 12:39 UTC10m
2026-06-27 THY299 - Jun 27, 02:59 UTCJun 27, 11:44 UTC8h 45m
2026-06-26 THY298 - Jun 26, 13:59 UTCJun 26, 22:19 UTC8h 20m
2026-06-26 THY171 - Jun 26, 02:30 UTCJun 26, 11:49 UTC9h 20m
2026-06-26 THY171 - Jun 26, 01:24 UTCJun 26, 01:34 UTC10m
2026-06-25 THY170 IST → HKG Jun 25, 22:10 UTCJun 25, 22:24 UTC15m
2026-06-25 THY170 IST → HKG Jun 25, 13:05 UTCJun 25, 21:25 UTC8h 20m
2026-06-25 THY91J - Jun 25, 01:04 UTCJun 25, 10:15 UTC9h 10m
2026-06-24 THY7KG IST → DTW Jun 24, 12:14 UTCJun 24, 22:25 UTC10h 10m
2026-06-23 THY182 - Jun 23, 19:24 UTCJun 24, 07:05 UTC11h 40m
2026-06-23 THY182 - Jun 23, 15:24 UTCJun 23, 16:59 UTC1h 35m
2026-06-22 THY182 - Jun 22, 23:10 UTCJun 23, 12:40 UTC13h 30m
2026-06-22 THY2NA - Jun 22, 18:24 UTCJun 22, 20:19 UTC1h 55m
2026-06-22 THY3GK IST → FCO Jun 22, 14:19 UTCJun 22, 16:20 UTC2h 0m
2026-06-22 THY281 - Jun 22, 11:30 UTCJun 22, 11:50 UTC20m

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?
Yes. Mode-S 4BB19A is currently airborne.
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, THY69.