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sensors Mode-S transponder

4BB18A

ICAO 24-bit transponder address · allocated to Turkey

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

Hex
4BB18A
Octal
22730612
Decimal
4,960,650
Country
TR
Tail
TC-LLJ
Type
B789
Broadcasting now · callsign THY84U · 37,000 ft
Flights observed
235
Distinct callsigns
20
Country
TR
Last broadcast
2h ago

Current position

4BB18A is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4BB18A 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
THY12E - 11 2026-07-06
THY8MT Turkish Airlines 10 2026-07-06
THY281 - 9 2026-06-25
THY196 - 7 2026-06-19
THY91J Turkish Airlines 6 2026-06-10
THY7KG Turkish Airlines 6 2026-06-09
THY41J Turkish Airlines 6 2026-06-27
THY224 Turkish Airlines 6 2026-05-19
THY197 - 6 2026-06-20
THY184 Turkish Airlines 6 2026-04-19
THY170 Turkish Airlines 6 2026-06-30
THY8 Turkish Airlines 5 2026-04-17
THY7 Turkish Airlines 5 2026-04-16
THY67C - 5 2026-07-14
THY4JD - 5 2026-06-26
THY299 - 5 2026-07-08
THY171 - 5 2026-07-01
THY125 - 5 2026-06-26
THY9LC Turkish Airlines 4 2026-05-22
THY84U - 4 2026-07-05

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 THY67C - Jul 14, 04:00 UTCJul 14, 14:30 UTC10h 30m
2026-07-14 THY301 - Jul 14, 00:30 UTCJul 14, 00:50 UTC20m
2026-07-13 THY301 - Jul 13, 12:40 UTCJul 13, 23:55 UTC11h 15m
2026-07-13 THY300 - Jul 13, 01:01 UTCJul 13, 10:10 UTC9h 10m
2026-07-12 THY300 - Jul 12, 23:35 UTCJul 13, 00:01 UTC25m
2026-07-12 THY9QD - Jul 12, 05:50 UTCJul 12, 08:50 UTC3h 0m
2026-07-11 THY70G - Jul 11, 18:00 UTCJul 11, 21:15 UTC3h 15m
2026-07-11 THY519 - Jul 11, 15:10 UTCJul 11, 15:30 UTC20m
2026-07-11 THY519 - Jul 11, 05:05 UTCJul 11, 14:35 UTC9h 30m
2026-07-10 THY518 - Jul 10, 16:45 UTCJul 11, 02:30 UTC9h 46m
2026-07-10 THY2AY - Jul 10, 02:20 UTCJul 10, 13:35 UTC11h 15m
2026-07-09 THY5KM - Jul 9, 12:00 UTCJul 10, 00:25 UTC12h 25m
2026-07-09 THY47G - Jul 9, 07:55 UTCJul 9, 08:10 UTC15m
2026-07-09 THY47G - Jul 9, 01:40 UTCJul 9, 07:20 UTC5h 40m
2026-07-08 THY59E - Jul 8, 17:30 UTCJul 8, 23:25 UTC5h 55m
2026-07-08 THY299 - Jul 8, 14:20 UTCJul 8, 14:40 UTC20m
2026-07-07 THY299 - Jul 7, 18:35 UTCJul 8, 13:35 UTC19h 0m
2026-07-07 THY299 - Jul 7, 17:40 UTCJul 8, 13:35 UTC19h 55m
2026-07-07 THY299 - Jul 7, 15:10 UTCJul 8, 13:35 UTC22h 25m
2026-07-07 THY298 - Jul 7, 13:35 UTCJul 8, 12:30 UTC22h 55m
2026-07-06 THY12E - Jul 6, 23:10 UTCJul 7, 11:15 UTC12h 5m
2026-07-06 THY8MT IST → LAX Jul 6, 07:50 UTCJul 6, 21:00 UTC13h 10m
2026-07-05 THY84U - Jul 5, 17:00 UTCJul 6, 05:30 UTC12h 30m
2026-07-05 THY67C IST → ORD Jul 5, 03:55 UTCJul 5, 14:30 UTC10h 35m
2026-07-04 THY4RN - Jul 4, 22:05 UTCJul 5, 01:00 UTC2h 55m
2026-07-04 THY9PG CDG → SAW Jul 4, 16:50 UTCJul 4, 20:20 UTC3h 30m
2026-07-04 THY51 - Jul 4, 13:30 UTCJul 4, 14:20 UTC50m
2026-07-04 THY51 - Jul 4, 01:40 UTCJul 4, 13:00 UTC11h 20m
2026-07-03 THY50 IST → NRT Jul 3, 13:30 UTCJul 3, 23:45 UTC10h 15m
2026-07-02 THY12E - Jul 2, 20:50 UTCJul 3, 08:45 UTC11h 55m
2026-07-02 THY8MT IST → LAX Jul 2, 05:25 UTCJul 2, 18:15 UTC12h 50m
2026-07-02 THY371 - Jul 2, 02:05 UTCJul 2, 02:30 UTC25m
2026-07-01 THY371 - Jul 1, 15:50 UTCJul 2, 01:35 UTC9h 45m
2026-07-01 THY171 - Jul 1, 02:10 UTCJul 1, 12:05 UTC9h 55m
2026-07-01 THY171 - Jul 1, 01:25 UTCJul 1, 01:35 UTC10m
2026-06-30 THY170 IST → HKG Jun 30, 22:20 UTCJun 30, 22:50 UTC30m
2026-06-30 THY170 IST → HKG Jun 30, 13:15 UTCJun 30, 21:35 UTC8h 20m
2026-06-29 THY12E - Jun 29, 20:54 UTCJun 30, 09:10 UTC12h 16m
2026-06-29 THY8MT IST → LAX Jun 29, 05:30 UTCJun 29, 17:40 UTC12h 10m
2026-06-28 THY84U - Jun 28, 16:49 UTCJun 29, 02:45 UTC9h 55m
2026-06-28 THY67C IST → ORD Jun 28, 03:50 UTCJun 28, 14:09 UTC10h 20m
2026-06-27 THY41J MIA → IST Jun 27, 14:54 UTCJun 28, 01:04 UTC10h 10m
2026-06-26 THY4JD - Jun 26, 23:09 UTCJun 27, 10:29 UTC11h 20m
2026-06-26 THY125 - Jun 26, 13:40 UTCJun 26, 14:05 UTC25m
2026-06-26 THY125 - Jun 26, 02:30 UTCJun 26, 13:04 UTC10h 35m
2026-06-25 THY124 - Jun 25, 13:35 UTCJun 25, 23:49 UTC10h 15m
2026-06-25 THY281 - Jun 25, 01:40 UTCJun 25, 11:30 UTC9h 50m
2026-06-24 THY281 - Jun 24, 14:45 UTCJun 25, 11:30 UTC20h 45m
2026-06-24 THY281 - Jun 24, 12:40 UTCJun 25, 11:30 UTC22h 50m
2026-06-23 THY12E - Jun 23, 21:29 UTCJun 24, 09:34 UTC12h 5m

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

Mode-S 4BB18A frequently asked

What is Mode-S code 4BB18A?
4BB18A is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-LLJ.
Where is Mode-S 4BB18A registered?
Mode-S code 4BB18A is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BB18A broadcasting right now?
Yes. Mode-S 4BB18A is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BB18A, octal 22730612, decimal 4,960,650.
What flights does 4BB18A operate?
Mode-S 4BB18A has broadcast 20 distinct callsigns, including THY12E, THY8MT, THY281, THY196, THY91J.