Apparatus

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sensors Mode-S transponder

45B8B7

ICAO 24-bit transponder address · allocated to Denmark

Currently assigned to OY-NEW · DASSAULT Falcon 8X

Hex
45B8B7
Octal
21334267
Decimal
4,569,271
Country
DK
Tail
OY-NEW
Type
FA8X
No current signal · last broadcast 1d ago
Flights observed
53
Distinct callsigns
3
Country
DK
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 45B8B7.

Country allocation

The ICAO 24-bit address 45B8B7 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 3 distinct

Callsign Airline Flights Last seen
MMD500 Air Alsie 49 2026-05-29
MMD6857 Air Alsie 2 2026-05-19
MMD6846 Air Alsie 2 2026-05-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 MMD500 BMA → BED May 29, 07:00 UTCMay 29, 09:00 UTC2h 0m
2026-05-28 MMD500 BMA → BED May 28, 17:50 UTCMay 28, 19:00 UTC1h 10m
2026-05-28 MMD500 BMA → BED May 28, 13:50 UTCMay 28, 15:30 UTC1h 40m
2026-05-25 MMD500 BMA → BED May 25, 14:00 UTCMay 25, 14:40 UTC40m
2026-05-25 MMD500 BMA → BED May 25, 08:55 UTCMay 25, 10:50 UTC1h 55m
2026-05-25 MMD500 BMA → BED May 25, 02:20 UTCMay 25, 08:20 UTC6h 0m
2026-05-22 MMD6846 TEB → LYX May 22, 12:55 UTCMay 22, 20:35 UTC7h 40m
2026-05-22 MMD6846 TEB → LYX May 22, 08:15 UTCMay 22, 10:45 UTC2h 30m
2026-05-20 MMD500 BMA → BED May 20, 07:00 UTCMay 20, 07:45 UTC45m
2026-05-19 MMD6857 AMS → AGP May 19, 19:10 UTCMay 19, 20:30 UTC1h 20m
2026-05-19 MMD6857 AMS → AGP May 19, 12:10 UTCMay 19, 18:30 UTC6h 20m
2026-05-18 MMD500 BMA → BED May 18, 17:00 UTCMay 18, 17:40 UTC40m
2026-05-18 MMD500 BMA → BED May 18, 10:00 UTCMay 18, 16:20 UTC6h 20m
2026-05-17 MMD500 BMA → BED May 17, 09:25 UTCMay 17, 11:35 UTC2h 10m
2026-05-17 MMD500 BMA → BED May 17, 06:15 UTCMay 17, 08:10 UTC1h 55m
2026-05-16 MMD500 BMA → BED May 16, 08:16 UTCMay 16, 09:45 UTC1h 30m
2026-05-14 MMD500 BMA → BED May 14, 14:01 UTCMay 14, 14:45 UTC45m
2026-05-14 MMD500 BMA → BED May 14, 11:55 UTCMay 14, 13:40 UTC1h 45m
2026-05-14 MMD500 BMA → BED May 14, 09:15 UTCMay 14, 10:35 UTC1h 20m
2026-05-14 MMD500 BMA → BED May 14, 07:05 UTCMay 14, 08:20 UTC1h 15m
2026-05-13 MMD500 BMA → BED May 13, 15:35 UTCMay 13, 17:35 UTC2h 0m
2026-05-13 MMD500 BMA → BED May 13, 12:30 UTCMay 13, 14:25 UTC1h 55m
2026-05-13 MMD500 BMA → BED May 13, 08:05 UTCMay 13, 10:10 UTC2h 5m
2026-05-12 MMD500 BMA → BED May 12, 16:50 UTCMay 12, 18:40 UTC1h 50m
2026-05-12 MMD500 BMA → BED May 12, 13:51 UTCMay 12, 15:45 UTC1h 55m
2026-05-12 MMD500 BMA → BED May 12, 10:15 UTCMay 12, 11:55 UTC1h 40m
2026-05-12 MMD500 BMA → BED May 12, 09:00 UTCMay 12, 09:40 UTC40m
2026-05-11 MMD500 BMA → BED May 11, 10:55 UTCMay 11, 12:10 UTC1h 15m
2026-05-11 MMD500 BMA → BED May 11, 06:00 UTCMay 11, 07:50 UTC1h 50m
2026-05-10 MMD500 BMA → BED May 10, 18:55 UTCMay 10, 20:45 UTC1h 50m
2026-05-10 MMD500 BMA → BED May 10, 16:30 UTCMay 10, 17:45 UTC1h 15m
2026-05-10 MMD500 BMA → BED May 10, 13:35 UTCMay 10, 15:09 UTC1h 35m
2026-05-10 MMD500 BMA → BED May 10, 12:00 UTCMay 10, 12:44 UTC45m
2026-05-08 MMD500 BMA → BED May 8, 07:59 UTCMay 8, 10:04 UTC2h 5m
2026-05-08 MMD500 BMA → BED May 8, 05:05 UTCMay 8, 07:20 UTC2h 15m
2026-05-06 MMD500 BMA → BED May 6, 09:20 UTCMay 6, 11:05 UTC1h 45m
2026-05-06 MMD500 BMA → BED May 6, 05:35 UTCMay 6, 07:30 UTC1h 55m
2026-05-05 MMD500 BMA → BED May 5, 12:10 UTCMay 5, 13:55 UTC1h 45m
2026-05-03 MMD500 BMA → BED May 3, 15:15 UTCMay 3, 17:24 UTC2h 10m
2026-05-01 MMD500 BMA → BED May 1, 11:30 UTCMay 1, 15:20 UTC3h 50m
2026-04-27 MMD500 BMA → BED Apr 27, 11:15 UTCApr 27, 11:55 UTC40m
2026-04-27 MMD500 BMA → BED Apr 27, 07:05 UTCApr 27, 08:40 UTC1h 35m
2026-04-27 MMD500 BMA → BED Apr 27, 05:40 UTCApr 27, 06:00 UTC20m
2026-04-26 MMD500 BMA → BED Apr 26, 14:00 UTCApr 26, 16:10 UTC2h 10m
2026-04-23 MMD500 BMA → BED Apr 23, 14:30 UTCApr 23, 16:30 UTC2h 0m
2026-04-23 MMD500 BMA → BED Apr 23, 10:25 UTCApr 23, 11:50 UTC1h 25m
2026-04-22 MMD500 BMA → BED Apr 22, 17:20 UTCApr 22, 18:35 UTC1h 15m
2026-04-22 MMD500 BMA → BED Apr 22, 11:20 UTCApr 22, 13:15 UTC1h 55m
2026-04-20 MMD500 BMA → BED Apr 20, 14:25 UTCApr 20, 16:15 UTC1h 50m
2026-04-19 MMD500 BMA → BED Apr 19, 16:50 UTCApr 19, 18:10 UTC1h 20m

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

Mode-S 45B8B7 frequently asked

What is Mode-S code 45B8B7?
45B8B7 is an ICAO 24-bit transponder address. Allocated to Denmark. Assigned to OY-NEW.
Where is Mode-S 45B8B7 registered?
Mode-S code 45B8B7 is allocated to Denmark (DK). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 45B8B7 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 45B8B7, octal 21334267, decimal 4,569,271.
What flights does 45B8B7 operate?
Mode-S 45B8B7 has broadcast 3 distinct callsigns, including MMD500, MMD6857, MMD6846.