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sensors Mode-S transponder

4598C7

ICAO 24-bit transponder address · allocated to Denmark

Currently assigned to OY-FFG · TECNAM P-2002 Sierra

Hex
4598C7
Octal
21314307
Decimal
4,561,095
Country
DK
Tail
OY-FFG
Type
SIRA
No current signal · last broadcast Jul 25, 12:05 UTC
Flights observed
209
Distinct callsigns
1
Country
DK
Last broadcast
Jul 25, 12:05 UTC

Last known position

Most recent position reported by Mode-S 4598C7.

Country allocation

The ICAO 24-bit address 4598C7 falls within the block assigned to Denmark (DK) by ICAO Annex 10, Volume III. Every aircraft registered in Denmark 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
OYFFG - 209 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 OYFFG - Jul 25, 11:05 UTCJul 25, 12:05 UTC1h 0m
2026-07-25 OYFFG - Jul 25, 08:35 UTCJul 25, 09:40 UTC1h 5m
2026-07-24 OYFFG - Jul 24, 12:45 UTCJul 24, 13:35 UTC50m
2026-07-20 OYFFG - Jul 20, 13:35 UTCJul 20, 14:15 UTC40m
2026-07-20 OYFFG - Jul 20, 11:30 UTCJul 20, 12:15 UTC45m
2026-07-18 OYFFG RKE → RKE Jul 18, 07:05 UTCJul 18, 07:55 UTC50m
2026-07-17 OYFFG RKE → RKE Jul 17, 15:15 UTCJul 17, 15:49 UTC35m
2026-07-17 OYFFG - Jul 17, 10:15 UTCJul 17, 11:35 UTC1h 20m
2026-07-17 OYFFG - Jul 17, 07:50 UTCJul 17, 08:35 UTC45m
2026-07-17 OYFFG - Jul 17, 06:20 UTCJul 17, 07:05 UTC45m
2026-07-16 OYFFG RKE → RKE Jul 16, 11:30 UTCJul 16, 12:44 UTC1h 15m
2026-07-16 OYFFG - Jul 16, 06:45 UTCJul 16, 07:50 UTC1h 5m
2026-07-15 OYFFG MRW → RKE Jul 15, 16:40 UTCJul 15, 17:40 UTC1h 0m
2026-07-15 OYFFG - Jul 15, 15:05 UTCJul 15, 15:50 UTC45m
2026-07-15 OYFFG - Jul 15, 13:00 UTCJul 15, 13:20 UTC20m
2026-07-15 OYFFG RKE → RKE Jul 15, 12:10 UTCJul 15, 12:20 UTC10m
2026-07-15 OYFFG - Jul 15, 09:10 UTCJul 15, 09:55 UTC45m
2026-07-15 OYFFG RKE → RKE Jul 15, 06:40 UTCJul 15, 07:40 UTC1h 0m
2026-07-14 OYFFG RKE → RKE Jul 14, 14:15 UTCJul 14, 14:45 UTC30m
2026-07-14 OYFFG - Jul 14, 13:20 UTCJul 14, 13:35 UTC15m
2026-07-13 OYFFG RKE → RKE Jul 13, 15:35 UTCJul 13, 16:25 UTC50m
2026-07-12 OYFFG - Jul 12, 12:20 UTCJul 12, 13:05 UTC45m
2026-07-12 OYFFG RKE → RKE Jul 12, 10:45 UTCJul 12, 11:25 UTC40m
2026-07-11 OYFFG - Jul 11, 09:30 UTCJul 11, 10:20 UTC50m
2026-07-10 OYFFG RKE → RKE Jul 10, 08:20 UTCJul 10, 09:00 UTC40m
2026-07-09 OYFFG - Jul 9, 14:30 UTCJul 9, 16:05 UTC1h 35m
2026-07-09 OYFFG - Jul 9, 11:55 UTCJul 9, 12:50 UTC55m
2026-07-09 OYFFG RKE → RKE Jul 9, 09:10 UTCJul 9, 10:00 UTC50m
2026-07-09 OYFFG - Jul 9, 06:50 UTCJul 9, 07:25 UTC35m
2026-07-08 OYFFG - Jul 8, 13:05 UTCJul 8, 13:45 UTC40m
2026-07-08 OYFFG - Jul 8, 11:15 UTCJul 8, 12:05 UTC50m
2026-07-06 OYFFG - Jul 6, 07:30 UTCJul 6, 08:55 UTC1h 25m
2026-07-04 OYFFG RKE → RKE Jul 4, 08:55 UTCJul 4, 09:45 UTC50m
2026-07-04 OYFFG RKE → RKE Jul 4, 07:00 UTCJul 4, 07:20 UTC20m
2026-07-02 OYFFG RKE → RKE Jul 2, 09:50 UTCJul 2, 10:35 UTC45m
2026-07-02 OYFFG - Jul 2, 07:00 UTCJul 2, 08:30 UTC1h 30m
2026-07-01 OYFFG RKE → RKE Jul 1, 17:40 UTCJul 1, 19:00 UTC1h 20m
2026-07-01 OYFFG - Jul 1, 07:25 UTCJul 1, 08:30 UTC1h 5m
2026-06-30 OYFFG - Jun 30, 11:10 UTCJun 30, 12:05 UTC55m
2026-06-30 OYFFG - Jun 30, 09:05 UTCJun 30, 09:15 UTC10m
2026-06-30 OYFFG - Jun 30, 08:00 UTCJun 30, 08:30 UTC30m
2026-06-29 OYFFG RKE → RKE Jun 29, 15:34 UTCJun 29, 16:10 UTC35m
2026-06-29 OYFFG - Jun 29, 12:14 UTCJun 29, 13:09 UTC55m
2026-06-29 OYFFG - Jun 29, 07:20 UTCJun 29, 08:09 UTC50m
2026-06-28 OYFFG - Jun 28, 15:55 UTCJun 28, 16:45 UTC50m
2026-06-28 OYFFG - Jun 28, 13:29 UTCJun 28, 14:14 UTC45m
2026-06-27 OYFFG - Jun 27, 08:39 UTCJun 27, 09:29 UTC50m
2026-06-27 OYFFG - Jun 27, 06:30 UTCJun 27, 07:34 UTC1h 5m
2026-06-26 OYFFG - Jun 26, 14:29 UTCJun 26, 14:44 UTC15m
2026-06-26 OYFFG RKE → RKE Jun 26, 12:39 UTCJun 26, 12:55 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 OY-FFG page for operator, model, and routing details .

Mode-S 4598C7 frequently asked

What is Mode-S code 4598C7?
4598C7 is an ICAO 24-bit transponder address. Allocated to Denmark. Assigned to OY-FFG.
Where is Mode-S 4598C7 registered?
Mode-S code 4598C7 is allocated to Denmark (DK). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4598C7 broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 12:05 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4598C7, octal 21314307, decimal 4,561,095.
What flights does 4598C7 operate?
Mode-S 4598C7 has broadcast 1 distinct callsign, including OYFFG.