sensors Mode-S transponder

4BB1A5

ICAO 24-bit transponder address · allocated to Turkey

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

Hex
4BB1A5
Octal
22730645
Decimal
4,960,677
Country
TR
Tail
TC-LME
Type
B789
No current signal · last broadcast 3h ago
Flights observed
210
Distinct callsigns
20
Country
TR
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S 4BB1A5.

Country allocation

The ICAO 24-bit address 4BB1A5 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
THY224 - 12 2026-06-18
THY281 - 10 2026-07-10
THY7 Turkish Airlines 8 2026-06-23
THY8 - 7 2026-06-24
THY7KG Turkish Airlines 7 2026-07-07
THY311 Turkish Airlines 7 2026-07-05
THY301 - 7 2026-07-15
THY11 Turkish Airlines 7 2026-05-19
THY91J - 6 2026-07-08
THY4JD - 6 2026-06-30
THY41J Turkish Airlines 6 2026-07-01
THY12 Turkish Airlines 6 2026-05-20
THY8MT Turkish Airlines 5 2026-06-28
THY3MA Turkish Airlines 5 2026-05-05
THY300 - 5 2026-07-13
THY299 Turkish Airlines 5 2026-04-25
THY197 - 5 2026-07-09
THY12E - 5 2026-06-28
THY125 - 5 2026-07-03
THY84U - 4 2026-06-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-15 THY301 - Jul 15, 00:25 UTCJul 15, 00:50 UTC25m
2026-07-14 THY301 - Jul 14, 12:35 UTCJul 14, 23:55 UTC11h 19m
2026-07-13 THY300 - Jul 13, 23:45 UTCJul 14, 10:10 UTC10h 25m
2026-07-13 THY59 - Jul 13, 08:40 UTCJul 13, 09:00 UTC20m
2026-07-12 THY59 - Jul 12, 23:55 UTCJul 13, 08:01 UTC8h 5m
2026-07-12 THY58 - Jul 12, 13:15 UTCJul 12, 21:35 UTC8h 20m
2026-07-12 THY301 - Jul 12, 00:15 UTCJul 12, 00:35 UTC20m
2026-07-11 THY301 - Jul 11, 12:30 UTCJul 11, 23:30 UTC11h 0m
2026-07-10 THY300 - Jul 10, 23:30 UTCJul 11, 10:00 UTC10h 30m
2026-07-10 THY9ZP - Jul 10, 19:10 UTCJul 10, 19:45 UTC35m
2026-07-10 THY7UW - Jul 10, 16:40 UTCJul 10, 17:00 UTC20m
2026-07-10 THY281 - Jul 10, 11:50 UTCJul 10, 12:10 UTC20m
2026-07-09 THY281 - Jul 9, 17:15 UTCJul 10, 11:15 UTC18h 0m
2026-07-09 THY281 - Jul 9, 13:25 UTCJul 10, 11:15 UTC21h 50m
2026-07-09 THY281 - Jul 9, 12:40 UTCJul 10, 11:15 UTC22h 35m
2026-07-09 THY197 - Jul 9, 08:50 UTCJul 9, 09:25 UTC35m
2026-07-08 THY197 - Jul 8, 23:45 UTCJul 9, 08:15 UTC8h 30m
2026-07-08 THY196 - Jul 8, 21:05 UTCJul 8, 21:20 UTC15m
2026-07-08 THY196 - Jul 8, 15:15 UTCJul 8, 15:30 UTC15m
2026-07-08 THY91J - Jul 8, 01:05 UTCJul 8, 10:25 UTC9h 20m
2026-07-07 THY7KG IST → DTW Jul 7, 12:25 UTCJul 7, 22:30 UTC10h 5m
2026-07-06 THY41Y - Jul 6, 20:30 UTCJul 7, 07:40 UTC11h 10m
2026-07-06 THY49Q - Jul 6, 05:20 UTCJul 6, 18:15 UTC12h 55m
2026-07-05 THY9LC - Jul 5, 17:50 UTCJul 6, 02:40 UTC8h 50m
2026-07-05 THY69W IST → IAD Jul 5, 05:10 UTCJul 5, 15:45 UTC10h 35m
2026-07-05 THY311 DPS → IST Jul 5, 02:10 UTCJul 5, 02:35 UTC25m
2026-07-04 THY311 DPS → IST Jul 4, 10:45 UTCJul 5, 01:25 UTC14h 40m
2026-07-03 THY310 - Jul 3, 23:40 UTCJul 4, 09:30 UTC9h 50m
2026-07-03 THY125 - Jul 3, 01:55 UTCJul 3, 13:30 UTC11h 35m
2026-07-02 THY124 - Jul 2, 13:20 UTCJul 2, 23:35 UTC10h 15m
2026-07-02 THY6PZ - Jul 2, 08:25 UTCJul 2, 09:55 UTC1h 30m
2026-07-02 THY8DB - Jul 2, 04:15 UTCJul 2, 05:45 UTC1h 30m
2026-07-01 THY41J MIA → IST Jul 1, 15:05 UTCJul 2, 01:45 UTC10h 40m
2026-06-30 THY4JD - Jun 30, 23:20 UTCJul 1, 11:05 UTC11h 45m
2026-06-30 THY5YR - Jun 30, 02:55 UTCJun 30, 14:00 UTC11h 5m
2026-06-29 THY83J IST → DFW Jun 29, 12:34 UTCJun 30, 00:20 UTC11h 45m
2026-06-28 THY12E - Jun 28, 21:04 UTCJun 29, 09:40 UTC12h 35m
2026-06-28 THY8MT IST → LAX Jun 28, 05:24 UTCJun 28, 17:50 UTC12h 25m
2026-06-27 THY4ML - Jun 27, 11:14 UTCJun 27, 19:55 UTC8h 40m
2026-06-26 THY4KG - Jun 26, 22:25 UTCJun 27, 08:05 UTC9h 40m
2026-06-26 THY65 - Jun 26, 04:24 UTCJun 26, 13:45 UTC9h 20m
2026-06-25 THY64 IST → BKK Jun 25, 17:34 UTCJun 26, 01:50 UTC8h 15m
2026-06-25 THY125 - Jun 25, 13:45 UTCJun 25, 14:14 UTC30m
2026-06-25 THY125 - Jun 25, 02:30 UTCJun 25, 13:05 UTC10h 35m
2026-06-24 THY124 - Jun 24, 13:50 UTCJun 25, 00:29 UTC10h 40m
2026-06-24 THY8 - Jun 24, 02:09 UTCJun 24, 11:05 UTC8h 55m
2026-06-23 THY7 IST → IAD Jun 23, 13:34 UTCJun 24, 00:15 UTC10h 40m
2026-06-23 THY91J - Jun 23, 01:10 UTCJun 23, 10:24 UTC9h 15m
2026-06-22 THY7KG IST → DTW Jun 22, 12:34 UTCJun 22, 22:59 UTC10h 25m
2026-06-22 THY197 - Jun 22, 08:54 UTCJun 22, 09:19 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-LME page for operator, model, and routing details .

Mode-S 4BB1A5 frequently asked

What is Mode-S code 4BB1A5?
4BB1A5 is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-LME.
Where is Mode-S 4BB1A5 registered?
Mode-S code 4BB1A5 is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BB1A5 broadcasting right now?
No active broadcast right now. Last signal was 3h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BB1A5, octal 22730645, decimal 4,960,677.
What flights does 4BB1A5 operate?
Mode-S 4BB1A5 has broadcast 20 distinct callsigns, including THY224, THY281, THY7, THY8, THY7KG.