sensors Mode-S transponder

4B9856

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-FBV · AIRBUS A-320

Hex
4B9856
Octal
22714126
Decimal
4,954,198
Country
TR
Tail
TC-FBV
Type
A320
No current signal · last broadcast 1h ago
Flights observed
136
Distinct callsigns
20
Country
TR
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 4B9856.

Country allocation

The ICAO 24-bit address 4B9856 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
FHY8013 Freebird Airlines 22 2026-05-24
FHY8014 Freebird Airlines 20 2026-05-28
FHY8116 Freebird Airlines 15 2026-05-23
FHY8115 Freebird Airlines 15 2026-05-23
FHY8501 - 14 2026-05-24
FHY8021 Freebird Airlines 9 2026-05-29
FHY8505 - 6 2026-05-17
FHY8201 Freebird Airlines 6 2026-05-30
FHY8202 Freebird Airlines 5 2026-05-23
FHY8043 - 3 2026-05-13
FHY1203 Freebird Airlines 3 2026-04-17
FHY562 Freebird Airlines 2 2026-04-20
FHY1204 Freebird Airlines 2 2026-04-18
FHY8348 Freebird Airlines 1 2026-05-13
FHY8347 Freebird Airlines 1 2026-05-13
FHY744 Freebird Airlines 1 2026-05-06
FHY743 - 1 2026-05-05
FHY728 Freebird Airlines 1 2026-05-28
FHY727 Freebird Airlines 1 2026-05-27
FHY561 Freebird Airlines 1 2026-04-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 FHY8201 BRU → BJV May 30, 05:40 UTCMay 30, 07:30 UTC1h 50m
2026-05-29 FHY8021 ADB → BRU May 29, 19:40 UTCMay 29, 23:20 UTC3h 40m
2026-05-29 FHY8021 ADB → BRU May 29, 17:10 UTCMay 29, 17:55 UTC45m
2026-05-29 FHY8021 ADB → BRU May 29, 13:10 UTCMay 29, 15:55 UTC2h 45m
2026-05-28 FHY8014 AYT → BRU May 28, 09:20 UTCMay 28, 13:10 UTC3h 50m
2026-05-28 FHY728 RIX → AYT May 28, 02:00 UTCMay 28, 05:05 UTC3h 5m
2026-05-27 FHY727 AYT → AMS May 27, 20:55 UTCMay 28, 00:20 UTC3h 25m
2026-05-27 FHY234 - May 27, 13:40 UTCMay 27, 16:10 UTC2h 30m
2026-05-27 FHY233 - May 27, 10:15 UTCMay 27, 12:20 UTC2h 5m
2026-05-26 FHY301P - May 26, 12:05 UTCMay 26, 12:45 UTC40m
2026-05-24 FHY8501 - May 24, 19:15 UTCMay 24, 19:40 UTC25m
2026-05-24 FHY8501 - May 24, 14:50 UTCMay 24, 17:45 UTC2h 55m
2026-05-24 FHY8014 AYT → BRU May 24, 09:20 UTCMay 24, 13:05 UTC3h 45m
2026-05-24 FHY8013 BRU → AYT May 24, 04:10 UTCMay 24, 07:40 UTC3h 30m
2026-05-23 FHY8116 AYT → BRU May 23, 19:15 UTCMay 23, 22:45 UTC3h 30m
2026-05-23 FHY8115 BRU → AYT May 23, 14:10 UTCMay 23, 17:35 UTC3h 25m
2026-05-23 FHY8202 BJV → BRU May 23, 09:10 UTCMay 23, 12:20 UTC3h 10m
2026-05-23 FHY8201 BRU → BJV May 23, 04:25 UTCMay 23, 07:35 UTC3h 10m
2026-05-22 FHY8021 ADB → BRU May 22, 19:40 UTCMay 22, 23:15 UTC3h 35m
2026-05-22 FHY8021 ADB → BRU May 22, 17:35 UTCMay 22, 18:20 UTC45m
2026-05-22 FHY8021 ADB → BRU May 22, 13:25 UTCMay 22, 16:20 UTC2h 55m
2026-05-21 FHY8014 AYT → BRU May 21, 09:30 UTCMay 21, 13:01 UTC3h 30m
2026-05-21 FHY8013 BRU → AYT May 21, 04:30 UTCMay 21, 07:45 UTC3h 15m
2026-05-20 FHY8501 - May 20, 20:35 UTCMay 21, 00:00 UTC3h 25m
2026-05-20 FHY8501 - May 20, 19:05 UTCMay 20, 19:25 UTC20m
2026-05-20 FHY8501 - May 20, 14:25 UTCMay 20, 17:15 UTC2h 50m
2026-05-18 FHY8014 AYT → BRU May 18, 09:55 UTCMay 18, 12:55 UTC3h 0m
2026-05-18 FHY8013 BRU → AYT May 18, 04:15 UTCMay 18, 07:30 UTC3h 15m
2026-05-17 FHY8505 - May 17, 20:20 UTCMay 17, 23:30 UTC3h 10m
2026-05-17 FHY8505 - May 17, 18:40 UTCMay 17, 18:55 UTC15m
2026-05-17 FHY8505 - May 17, 14:20 UTCMay 17, 17:15 UTC2h 55m
2026-05-17 FHY8014 AYT → BRU May 17, 08:50 UTCMay 17, 12:35 UTC3h 45m
2026-05-17 FHY8013 BRU → AYT May 17, 04:05 UTCMay 17, 07:15 UTC3h 10m
2026-05-16 FHY8116 AYT → BRU May 16, 19:20 UTCMay 16, 23:05 UTC3h 45m
2026-05-16 FHY8115 BRU → AYT May 16, 14:41 UTCMay 16, 17:45 UTC3h 5m
2026-05-16 FHY8202 BJV → BRU May 16, 09:01 UTCMay 16, 12:21 UTC3h 20m
2026-05-16 FHY8201 BRU → BJV May 16, 04:25 UTCMay 16, 07:16 UTC2h 51m
2026-05-15 FHY8014 AYT → BRU May 15, 20:55 UTCMay 16, 00:35 UTC3h 40m
2026-05-15 FHY8013 BRU → AYT May 15, 16:20 UTCMay 15, 19:30 UTC3h 10m
2026-05-15 FHY8021 ADB → BRU May 15, 11:20 UTCMay 15, 14:35 UTC3h 15m
2026-05-15 FHY8021 ADB → BRU May 15, 09:15 UTCMay 15, 09:55 UTC40m
2026-05-15 FHY8021 ADB → BRU May 15, 04:35 UTCMay 15, 07:45 UTC3h 10m
2026-05-14 FHY8014 AYT → BRU May 14, 09:25 UTCMay 14, 13:10 UTC3h 45m
2026-05-14 FHY8013 BRU → AYT May 14, 04:30 UTCMay 14, 07:40 UTC3h 10m
2026-05-13 FHY8043 - May 13, 20:10 UTCMay 13, 23:35 UTC3h 25m
2026-05-13 FHY8043 - May 13, 18:25 UTCMay 13, 18:45 UTC20m
2026-05-13 FHY8043 - May 13, 13:45 UTCMay 13, 16:55 UTC3h 10m
2026-05-13 FHY8348 ADB → BRU May 13, 09:00 UTCMay 13, 12:15 UTC3h 15m
2026-05-13 FHY8347 BRU → ADB May 13, 04:10 UTCMay 13, 07:00 UTC2h 50m
2026-05-11 FHY8014 AYT → BRU May 11, 09:20 UTCMay 11, 13:05 UTC3h 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.

Prefer a tail-number view? See the TC-FBV page for operator, model, and routing details .

Mode-S 4B9856 frequently asked

What is Mode-S code 4B9856?
4B9856 is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-FBV.
Where is Mode-S 4B9856 registered?
Mode-S code 4B9856 is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4B9856 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4B9856, octal 22714126, decimal 4,954,198.
What flights does 4B9856 operate?
Mode-S 4B9856 has broadcast 20 distinct callsigns, including FHY8013, FHY8014, FHY8116, FHY8115, FHY8501.