Apparatus

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sensors Mode-S transponder

45F0BE

ICAO 24-bit transponder address · allocated to Denmark

Currently assigned to OY-1047

Hex
45F0BE
Octal
21370276
Decimal
4,583,614
Country
DK
Tail
OY-1047
Type
CLON
No current signal · last broadcast 6d ago
Flights observed
45
Distinct callsigns
1
Country
DK
Last broadcast
6d ago

Last known position

Most recent position reported by Mode-S 45F0BE.

Country allocation

The ICAO 24-bit address 45F0BE 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
OY1047 - 45 2026-05-27

Recent flights last 45

DateFlightRouteTakeoffLandingDuration
2026-05-27 OY1047 - May 27, 12:05 UTCMay 27, 12:30 UTC25m
2026-05-27 OY1047 - May 27, 10:20 UTCMay 27, 10:55 UTC35m
2026-05-27 OY1047 - May 27, 08:15 UTCMay 27, 09:15 UTC1h 0m
2026-05-26 OY1047 - May 26, 11:05 UTCMay 26, 12:20 UTC1h 15m
2026-05-26 OY1047 - May 26, 08:54 UTCMay 26, 10:05 UTC1h 10m
2026-05-23 OY1047 - May 23, 14:05 UTCMay 23, 14:55 UTC50m
2026-05-23 OY1047 - May 23, 12:00 UTCMay 23, 13:00 UTC1h 0m
2026-05-22 OY1047 - May 22, 14:30 UTCMay 22, 15:35 UTC1h 5m
2026-05-22 OY1047 - May 22, 12:35 UTCMay 22, 13:40 UTC1h 5m
2026-05-19 OY1047 - May 19, 09:50 UTCMay 19, 10:35 UTC45m
2026-05-19 OY1047 - May 19, 08:50 UTCMay 19, 09:15 UTC25m
2026-05-18 OY1047 - May 18, 14:10 UTCMay 18, 15:20 UTC1h 10m
2026-05-18 OY1047 - May 18, 12:35 UTCMay 18, 13:15 UTC40m
2026-05-18 OY1047 - May 18, 12:00 UTCMay 18, 12:30 UTC30m
2026-05-17 OY1047 - May 17, 13:01 UTCMay 17, 13:10 UTC10m
2026-05-17 OY1047 - May 17, 12:15 UTCMay 17, 12:55 UTC40m
2026-05-12 OY1047 - May 12, 10:50 UTCMay 12, 11:55 UTC1h 5m
2026-05-12 OY1047 - May 12, 08:50 UTCMay 12, 09:45 UTC55m
2026-05-10 OY1047 - May 10, 15:05 UTCMay 10, 16:00 UTC55m
2026-05-10 OY1047 - May 10, 13:14 UTCMay 10, 14:09 UTC55m
2026-05-09 OY1047 - May 9, 09:15 UTCMay 9, 10:55 UTC1h 40m
2026-05-06 OY1047 - May 6, 16:00 UTCMay 6, 16:15 UTC15m
2026-04-23 OY1047 - Apr 23, 14:10 UTCApr 23, 15:10 UTC1h 0m
2026-04-23 OY1047 - Apr 23, 12:35 UTCApr 23, 13:25 UTC50m
2026-04-23 OY1047 - Apr 23, 08:50 UTCApr 23, 11:15 UTC2h 25m
2026-04-22 OY1047 - Apr 22, 14:20 UTCApr 22, 15:35 UTC1h 15m
2026-04-22 OY1047 - Apr 22, 12:25 UTCApr 22, 13:00 UTC35m
2026-04-22 OY1047 - Apr 22, 11:15 UTCApr 22, 11:45 UTC30m
2026-04-21 OY1047 - Apr 21, 14:50 UTCApr 21, 15:31 UTC40m
2026-04-21 OY1047 - Apr 21, 13:45 UTCApr 21, 13:55 UTC10m
2026-04-21 OY1047 - Apr 21, 13:20 UTCApr 21, 13:40 UTC20m
2026-04-21 OY1047 - Apr 21, 12:05 UTCApr 21, 12:40 UTC35m
2026-04-21 OY1047 - Apr 21, 11:05 UTCApr 21, 11:25 UTC20m
2026-04-21 OY1047 - Apr 21, 09:40 UTCApr 21, 10:15 UTC35m
2026-04-21 OY1047 - Apr 21, 08:45 UTCApr 21, 09:15 UTC30m
2026-04-17 OY1047 - Apr 17, 11:30 UTCApr 17, 12:40 UTC1h 10m
2026-04-17 OY1047 - Apr 17, 09:40 UTCApr 17, 10:35 UTC55m
2026-04-15 OY1047 - Apr 15, 15:05 UTCApr 15, 15:25 UTC20m
2026-04-15 OY1047 - Apr 15, 14:40 UTCApr 15, 14:55 UTC14m
2026-04-15 OY1047 - Apr 15, 13:45 UTCApr 15, 14:35 UTC50m
2026-04-15 OY1047 - Apr 15, 11:35 UTCApr 15, 12:55 UTC1h 20m
2026-04-15 OY1047 - Apr 15, 09:00 UTCApr 15, 09:20 UTC20m
2026-04-15 OY1047 - Apr 15, 08:35 UTCApr 15, 08:55 UTC20m
2026-04-13 OY1047 - Apr 13, 09:50 UTCApr 13, 10:20 UTC30m
2026-04-13 OY1047 - Apr 13, 08:35 UTCApr 13, 08:55 UTC20m

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-1047 page for operator, model, and routing details .

Mode-S 45F0BE frequently asked

What is Mode-S code 45F0BE?
45F0BE is an ICAO 24-bit transponder address. Allocated to Denmark. Assigned to OY-1047.
Where is Mode-S 45F0BE registered?
Mode-S code 45F0BE is allocated to Denmark (DK). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 45F0BE broadcasting right now?
No active broadcast right now. Last signal was 6d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 45F0BE, octal 21370276, decimal 4,583,614.
What flights does 45F0BE operate?
Mode-S 45F0BE has broadcast 1 distinct callsign, including OY1047.