Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

4BD1FA

ICAO 24-bit transponder address · allocated to Turkey

Hex
4BD1FA
Octal
22750772
Decimal
4,968,954
Country
TR
No current signal · last broadcast 22d ago
Flights observed
45
Distinct callsigns
1
Country
TR
Last broadcast
22d ago

Last known position

Most recent position reported by Mode-S 4BD1FA.

Country allocation

The ICAO 24-bit address 4BD1FA 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 1 distinct

Callsign Airline Flights Last seen
TCTOZ - 45 2026-07-26

Recent flights last 45

DateFlightRouteTakeoffLandingDuration
2026-07-26 TCTOZ - Jul 26, 22:20 UTCJul 26, 22:30 UTC10m
2026-07-26 TCTOZ ISL → CGN Jul 26, 18:20 UTCJul 26, 21:25 UTC3h 5m
2026-07-26 TCTOZ - Jul 26, 15:10 UTCJul 26, 16:00 UTC50m
2026-07-26 TCTOZ - Jul 26, 13:00 UTCJul 26, 14:00 UTC1h 0m
2026-07-26 TCTOZ - Jul 26, 10:05 UTCJul 26, 11:05 UTC1h 0m
2026-07-24 TCTOZ - Jul 24, 21:45 UTCJul 24, 22:35 UTC50m
2026-07-24 TCTOZ - Jul 24, 19:35 UTCJul 24, 20:35 UTC1h 0m
2026-07-24 TCTOZ - Jul 24, 15:40 UTCJul 24, 16:25 UTC45m
2026-07-24 TCTOZ - Jul 24, 12:45 UTCJul 24, 13:40 UTC55m
2026-07-23 TCTOZ - Jul 23, 16:40 UTCJul 23, 16:55 UTC15m
2026-07-23 TCTOZ - Jul 23, 13:25 UTCJul 23, 14:15 UTC50m
2026-07-23 TCTOZ - Jul 23, 10:15 UTCJul 23, 12:15 UTC2h 0m
2026-07-23 TCTOZ - Jul 23, 07:10 UTCJul 23, 07:35 UTC25m
2026-07-21 TCTOZ - Jul 21, 13:00 UTCJul 21, 15:40 UTC2h 40m
2026-07-21 TCTOZ - Jul 21, 09:55 UTCJul 21, 10:45 UTC50m
2026-07-20 TCTOZ - Jul 20, 11:30 UTCJul 20, 11:45 UTC15m
2026-07-20 TCTOZ - Jul 20, 08:00 UTCJul 20, 09:00 UTC1h 0m
2026-07-20 TCTOZ - Jul 20, 05:20 UTCJul 20, 06:15 UTC55m
2026-07-18 TCTOZ ECN → ISL Jul 18, 21:15 UTCJul 18, 22:20 UTC1h 5m
2026-07-18 TCTOZ - Jul 18, 19:55 UTCJul 18, 20:20 UTC25m
2026-07-18 TCTOZ - Jul 18, 18:15 UTCJul 18, 18:40 UTC25m
2026-07-18 TCTOZ - Jul 18, 16:35 UTCJul 18, 17:20 UTC45m
2026-07-18 TCTOZ - Jul 18, 12:00 UTCJul 18, 14:40 UTC2h 40m
2026-07-15 TCTOZ - Jul 15, 10:15 UTCJul 15, 12:20 UTC2h 5m
2026-07-15 TCTOZ - Jul 15, 08:10 UTCJul 15, 09:15 UTC1h 5m
2026-07-14 TCTOZ MST → ISL Jul 14, 13:30 UTCJul 14, 16:10 UTC2h 40m
2026-07-14 TCTOZ VIE → MST Jul 14, 09:20 UTCJul 14, 10:40 UTC1h 20m
2026-07-14 TCTOZ - Jul 14, 06:00 UTCJul 14, 08:25 UTC2h 25m
2026-07-13 TCTOZ - Jul 13, 17:20 UTCJul 13, 19:15 UTC1h 55m
2026-07-12 TCTOZ - Jul 12, 17:45 UTCJul 12, 20:10 UTC2h 25m
2026-07-12 TCTOZ - Jul 12, 15:45 UTCJul 12, 16:25 UTC40m
2026-07-11 TCTOZ - Jul 11, 14:30 UTCJul 11, 15:35 UTC1h 5m
2026-07-11 TCTOZ - Jul 11, 09:30 UTCJul 11, 12:15 UTC2h 45m
2026-07-11 TCTOZ - Jul 11, 04:15 UTCJul 11, 07:10 UTC2h 55m
2026-07-06 TCTOZ ECN → ISL Jul 6, 21:25 UTCJul 6, 22:35 UTC1h 10m
2026-07-06 TCTOZ - Jul 6, 19:40 UTCJul 6, 20:35 UTC55m
2026-07-06 TCTOZ - Jul 6, 17:35 UTCJul 6, 18:20 UTC45m
2026-07-06 TCTOZ - Jul 6, 00:55 UTCJul 6, 03:00 UTC2h 5m
2026-07-05 TCTOZ - Jul 5, 23:15 UTCJul 6, 00:20 UTC1h 5m
2026-07-04 TCTOZ - Jul 4, 12:35 UTCJul 4, 13:20 UTC45m
2026-07-04 TCTOZ - Jul 4, 10:40 UTCJul 4, 11:35 UTC55m
2026-07-04 TCTOZ - Jul 4, 07:00 UTCJul 4, 08:05 UTC1h 5m
2026-05-16 TCTOZ - May 16, 03:30 UTCMay 16, 08:20 UTC4h 51m
2026-05-16 TCTOZ - May 16, 02:20 UTCMay 16, 02:40 UTC20m
2026-05-15 TCTOZ - May 15, 21:25 UTCMay 15, 23:10 UTC1h 45m

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.

Mode-S 4BD1FA frequently asked

What is Mode-S code 4BD1FA?
4BD1FA is an ICAO 24-bit transponder address. Allocated to Turkey.
Where is Mode-S 4BD1FA registered?
Mode-S code 4BD1FA is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BD1FA broadcasting right now?
No active broadcast right now. Last signal was 22d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BD1FA, octal 22750772, decimal 4,968,954.
What flights does 4BD1FA operate?
Mode-S 4BD1FA has broadcast 1 distinct callsign, including TCTOZ.