sensors Mode-S transponder

4B9907

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-FHG · AIRBUS A-320

Hex
4B9907
Octal
22714407
Decimal
4,954,375
Country
TR
Tail
TC-FHG
Type
A320
No current signal · last broadcast 12h ago
Flights observed
14
Distinct callsigns
8
Country
TR
Last broadcast
12h ago

Last known position

Most recent position reported by Mode-S 4B9907.

Country allocation

The ICAO 24-bit address 4B9907 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 8 distinct

Callsign Airline Flights Last seen
FHY9129 - 3 2026-04-13
FHY561 - 3 2026-04-13
FHY562 - 2 2026-04-13
FHY1688 - 2 2026-04-13
FHY9130 - 1 2026-04-13
FHY7562 - 1 2026-04-14
FHY7561 - 1 2026-04-14
FHY1687 Freebird Airlines 1 2026-04-12

Recent flights last 14

DateFlightRouteTakeoffLandingDuration
2026-04-14 FHY7562 - Apr 14, 10:00 UTCApr 14, 11:05 UTC1h 5m
2026-04-14 FHY7561 - Apr 14, 05:15 UTCApr 14, 06:15 UTC1h 0m
2026-04-13 FHY9130 - Apr 13, 21:30 UTCApr 13, 22:55 UTC1h 25m
2026-04-13 FHY9129 - Apr 13, 16:15 UTCApr 13, 16:40 UTC25m
2026-04-13 FHY9129 - Apr 13, 15:50 UTCApr 13, 16:40 UTC50m
2026-04-13 FHY9129 - Apr 13, 15:35 UTCApr 13, 16:15 UTC40m
2026-04-13 FHY562 - Apr 13, 13:20 UTCApr 13, 13:45 UTC25m
2026-04-13 FHY562 - Apr 13, 09:55 UTCApr 13, 11:20 UTC1h 25m
2026-04-13 FHY561 - Apr 13, 08:20 UTCApr 13, 08:35 UTC15m
2026-04-13 FHY561 - Apr 13, 07:55 UTCApr 13, 08:35 UTC40m
2026-04-13 FHY561 - Apr 13, 06:25 UTCApr 13, 08:15 UTC1h 50m
2026-04-13 FHY1688 - Apr 13, 03:55 UTCApr 13, 04:10 UTC15m
2026-04-13 FHY1688 - Apr 13, 01:00 UTCApr 13, 04:10 UTC3h 10m
2026-04-12 FHY1687 AYT → PAD Apr 12, 20:00 UTCApr 12, 20:15 UTC15m

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

Mode-S 4B9907 frequently asked

What is Mode-S code 4B9907?
4B9907 is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-FHG.
Where is Mode-S 4B9907 registered?
Mode-S code 4B9907 is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4B9907 broadcasting right now?
No active broadcast right now. Last signal was 12h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4B9907, octal 22714407, decimal 4,954,375.
What flights does 4B9907 operate?
Mode-S 4B9907 has broadcast 8 distinct callsigns, including FHY9129, FHY561, FHY562, FHY1688, FHY9130.