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sensors Mode-S transponder

4BB18B

ICAO 24-bit transponder address · allocated to Turkey

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

Hex
4BB18B
Octal
22730613
Decimal
4,960,651
Country
TR
Tail
TC-LLK
Type
B789
Broadcasting now · callsign THY280 · 35,000 ft
Flights observed
175
Distinct callsigns
20
Country
TR
Last broadcast
1h ago

Current position

4BB18B is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4BB18B 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
THY281 - 9 2026-06-16
THY311 Turkish Airlines 8 2026-06-02
THY197 Turkish Airlines 7 2026-07-20
THY51 - 6 2026-06-17
THY4JD - 6 2026-07-15
THY41J - 6 2026-07-16
THY196 - 6 2026-07-20
THY9LC Turkish Airlines 5 2026-07-17
THY8MT - 5 2026-07-18
THY69W - 5 2026-07-17
THY184 Turkish Airlines 5 2026-06-14
THY12E Turkish Airlines 5 2026-07-18
THY91J Turkish Airlines 4 2026-07-20
THY7KG - 4 2026-07-19
THY73 Turkish Airlines 4 2026-05-28
THY171 Turkish Airlines 4 2026-06-04
THY12 - 4 2026-07-14
THY11 - 4 2026-07-13
THY65 - 3 2026-07-15
THY50 Turkish Airlines 3 2026-06-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-21 THY280 - Jul 21, 12:30 UTCJul 21, 12:45 UTC15m
2026-07-20 THY197 PEK → IST Jul 20, 23:50 UTCJul 21, 09:20 UTC9h 30m
2026-07-20 THY196 - Jul 20, 21:15 UTCJul 20, 21:30 UTC15m
2026-07-20 THY196 - Jul 20, 14:00 UTCJul 20, 15:45 UTC1h 45m
2026-07-20 THY91J DTW → IST Jul 20, 01:45 UTCJul 20, 11:40 UTC9h 55m
2026-07-19 THY7KG - Jul 19, 12:35 UTCJul 19, 22:40 UTC10h 5m
2026-07-18 THY12E LAX → IST Jul 18, 21:25 UTCJul 19, 09:30 UTC12h 5m
2026-07-18 THY8MT - Jul 18, 05:40 UTCJul 18, 18:45 UTC13h 5m
2026-07-17 THY9LC BJV → ESB Jul 17, 17:44 UTCJul 18, 03:05 UTC9h 21m
2026-07-17 THY69W - Jul 17, 05:15 UTCJul 17, 15:20 UTC10h 5m
2026-07-16 THY41J - Jul 16, 15:05 UTCJul 17, 01:39 UTC10h 35m
2026-07-15 THY4JD - Jul 15, 23:20 UTCJul 16, 10:50 UTC11h 30m
2026-07-15 THY65 - Jul 15, 13:05 UTCJul 15, 13:20 UTC15m
2026-07-15 THY65 - Jul 15, 04:25 UTCJul 15, 12:20 UTC7h 55m
2026-07-14 THY64 - Jul 14, 17:40 UTCJul 15, 02:10 UTC8h 29m
2026-07-14 THY12 - Jul 14, 04:55 UTCJul 14, 14:00 UTC9h 5m
2026-07-13 THY11 - Jul 13, 16:10 UTCJul 14, 01:50 UTC9h 40m
2026-07-13 THY32G - Jul 13, 02:20 UTCJul 13, 12:35 UTC10h 15m
2026-07-12 THY31K - Jul 12, 12:20 UTCJul 12, 23:25 UTC11h 5m
2026-07-01 THY8 - Jul 1, 01:55 UTCJul 1, 11:05 UTC9h 10m
2026-06-30 THY7 IST → IAD Jun 30, 13:25 UTCJun 30, 23:20 UTC9h 55m
2026-06-30 THY197 - Jun 30, 09:05 UTCJun 30, 09:30 UTC25m
2026-06-30 THY197 - Jun 30, 07:05 UTCJun 30, 08:30 UTC1h 25m
2026-06-29 THY197 - Jun 29, 23:54 UTCJun 30, 00:09 UTC15m
2026-06-29 THY196 - Jun 29, 20:54 UTCJun 29, 21:09 UTC15m
2026-06-29 THY196 - Jun 29, 13:39 UTCJun 29, 15:24 UTC1h 45m
2026-06-29 THY197 - Jun 29, 09:50 UTCJun 29, 10:15 UTC25m
2026-06-29 THY197 - Jun 29, 07:44 UTCJun 29, 09:14 UTC1h 30m
2026-06-29 THY197 - Jun 29, 00:29 UTCJun 29, 00:39 UTC10m
2026-06-28 THY196 - Jun 28, 21:30 UTCJun 28, 21:45 UTC15m
2026-06-28 THY196 - Jun 28, 14:04 UTCJun 28, 15:55 UTC1h 50m
2026-06-28 THY8 - Jun 28, 02:14 UTCJun 28, 11:19 UTC9h 5m
2026-06-27 THY7 IST → IAD Jun 27, 13:15 UTCJun 27, 23:14 UTC10h 0m
2026-06-26 THY12E - Jun 26, 21:30 UTCJun 27, 09:55 UTC12h 25m
2026-06-26 THY8MT IST → LAX Jun 26, 05:35 UTCJun 26, 18:44 UTC13h 10m
2026-06-25 THY41J MIA → IST Jun 25, 14:50 UTCJun 26, 01:10 UTC10h 20m
2026-06-24 THY4JD - Jun 24, 23:14 UTCJun 25, 10:35 UTC11h 20m
2026-06-23 THY3MA - Jun 23, 19:44 UTCJun 24, 05:54 UTC10h 10m
2026-06-23 THY47B - Jun 23, 05:49 UTCJun 23, 17:09 UTC11h 20m
2026-06-22 THY9LC - Jun 22, 17:34 UTCJun 23, 03:04 UTC9h 30m
2026-06-22 THY69W IST → IAD Jun 22, 05:20 UTCJun 22, 15:40 UTC10h 20m
2026-06-21 THY1990 - Jun 21, 12:49 UTCJun 21, 15:54 UTC3h 5m
2026-06-21 THY8XZ - Jun 21, 07:14 UTCJun 21, 10:29 UTC3h 15m
2026-06-20 THY9LC - Jun 20, 17:59 UTCJun 21, 03:14 UTC9h 15m
2026-06-20 THY69W IST → IAD Jun 20, 05:19 UTCJun 20, 15:34 UTC10h 15m
2026-06-19 THY41J MIA → IST Jun 19, 14:49 UTCJun 20, 01:24 UTC10h 35m
2026-06-18 THY4JD - Jun 18, 23:10 UTCJun 19, 10:54 UTC11h 44m
2026-06-18 THY4ML - Jun 18, 11:45 UTCJun 18, 20:30 UTC8h 45m
2026-06-17 THY4KG - Jun 17, 22:30 UTCJun 18, 08:30 UTC10h 0m
2026-06-17 THY51 - Jun 17, 13:50 UTCJun 17, 14:15 UTC25m

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

Mode-S 4BB18B frequently asked

What is Mode-S code 4BB18B?
4BB18B is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-LLK.
Where is Mode-S 4BB18B registered?
Mode-S code 4BB18B is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BB18B broadcasting right now?
Yes. Mode-S 4BB18B is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BB18B, octal 22730613, decimal 4,960,651.
What flights does 4BB18B operate?
Mode-S 4BB18B has broadcast 20 distinct callsigns, including THY281, THY311, THY197, THY51, THY4JD.