Apparatus

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sensors Mode-S transponder

45C86D

ICAO 24-bit transponder address · allocated to Denmark

Currently assigned to OY-RCM · AIRBUS A-320

Hex
45C86D
Octal
21344155
Decimal
4,573,293
Country
DK
Tail
OY-RCM
Type
A320
Broadcasting now · callsign FLI450 · 2,950 ft
Flights observed
113
Distinct callsigns
5
Country
DK
Last broadcast
9m ago

Current position

45C86D is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 45C86D 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 5 distinct

Callsign Airline Flights Last seen
FLI459 Atlantic Airways 30 2026-05-29
FLI453 Atlantic Airways 30 2026-05-26
FLI450 Atlantic Airways 28 2026-05-29
FLI456 Atlantic Airways 24 2026-05-29
FLI451 Atlantic Airways 1 2026-05-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 FLI459 CPH → FAE May 29, 16:40 UTCMay 30, 09:15 UTC16h 35m
2026-05-29 FLI456 FAE → CPH May 29, 10:45 UTCMay 29, 15:40 UTC4h 55m
2026-05-29 FLI450 FAE → CPH May 29, 08:00 UTCMay 29, 09:20 UTC1h 20m
2026-05-26 FLI459 CPH → FAE May 26, 19:15 UTCMay 26, 20:50 UTC1h 35m
2026-05-26 FLI453 CPH → FAE May 26, 10:50 UTCMay 26, 15:29 UTC4h 40m
2026-05-26 FLI451 CPH → FAE May 26, 04:45 UTCMay 26, 09:45 UTC5h 0m
2026-05-25 FLI459 CPH → FAE May 25, 17:00 UTCMay 25, 21:30 UTC4h 30m
2026-05-25 FLI453 CPH → FAE May 25, 11:00 UTCMay 25, 15:50 UTC4h 50m
2026-05-25 FLI450 FAE → CPH May 25, 08:20 UTCMay 25, 09:35 UTC1h 15m
2026-05-23 FLI459 CPH → FAE May 23, 16:50 UTCMay 23, 18:25 UTC1h 35m
2026-05-23 FLI453 CPH → FAE May 23, 10:55 UTCMay 23, 15:35 UTC4h 40m
2026-05-22 FLI459 CPH → FAE May 22, 17:05 UTCMay 23, 09:20 UTC16h 14m
2026-05-22 FLI453 CPH → FAE May 22, 10:40 UTCMay 22, 15:55 UTC5h 15m
2026-05-21 FLI459 CPH → FAE May 21, 16:40 UTCMay 22, 09:15 UTC16h 35m
2026-05-21 FLI453 CPH → FAE May 21, 10:40 UTCMay 21, 15:30 UTC4h 50m
2026-05-20 FLI459 CPH → FAE May 20, 16:50 UTCMay 21, 09:15 UTC16h 25m
2026-05-20 FLI456 FAE → CPH May 20, 10:40 UTCMay 20, 15:30 UTC4h 50m
2026-05-19 FLI450 FAE → CPH May 19, 16:55 UTCMay 20, 09:25 UTC16h 31m
2026-05-19 FLI456 FAE → CPH May 19, 10:45 UTCMay 19, 15:30 UTC4h 45m
2026-05-18 FLI459 CPH → FAE May 18, 16:55 UTCMay 19, 09:15 UTC16h 19m
2026-05-18 FLI456 FAE → CPH May 18, 10:35 UTCMay 18, 15:30 UTC4h 55m
2026-05-17 FLI450 FAE → CPH May 17, 16:50 UTCMay 18, 09:15 UTC16h 25m
2026-05-17 FLI456 FAE → CPH May 17, 10:35 UTCMay 17, 15:31 UTC4h 55m
2026-05-16 FLI450 FAE → CPH May 16, 16:35 UTCMay 17, 09:15 UTC16h 40m
2026-05-16 FLI456 FAE → CPH May 16, 10:31 UTCMay 16, 15:31 UTC5h 0m
2026-05-15 FLI450 FAE → CPH May 15, 16:40 UTCMay 16, 09:10 UTC16h 31m
2026-05-15 FLI456 FAE → CPH May 15, 10:30 UTCMay 15, 15:25 UTC4h 54m
2026-05-14 FLI450 FAE → CPH May 14, 16:50 UTCMay 15, 09:10 UTC16h 20m
2026-05-14 FLI456 FAE → CPH May 14, 10:35 UTCMay 14, 15:40 UTC5h 5m
2026-05-13 FLI450 FAE → CPH May 13, 17:00 UTCMay 14, 09:25 UTC16h 25m
2026-05-13 FLI456 FAE → CPH May 13, 10:40 UTCMay 13, 15:40 UTC5h 0m
2026-05-13 FLI450 FAE → CPH May 13, 08:05 UTCMay 13, 09:20 UTC1h 15m
2026-05-11 FLI459 CPH → FAE May 11, 16:45 UTCMay 11, 18:10 UTC1h 25m
2026-05-11 FLI453 CPH → FAE May 11, 10:45 UTCMay 11, 15:30 UTC4h 45m
2026-05-10 FLI450 FAE → CPH May 10, 16:44 UTCMay 11, 09:15 UTC16h 30m
2026-05-10 FLI453 CPH → FAE May 10, 10:30 UTCMay 10, 15:24 UTC4h 55m
2026-05-10 FLI450 FAE → CPH May 10, 07:50 UTCMay 10, 09:10 UTC1h 20m
2026-05-09 FLI450 FAE → CPH May 9, 11:20 UTCMay 10, 09:10 UTC21h 50m
2026-05-09 FLI453 CPH → FAE May 9, 10:40 UTCMay 10, 09:10 UTC22h 30m
2026-05-08 FLI459 CPH → FAE May 8, 16:55 UTCMay 9, 09:15 UTC16h 20m
2026-05-08 FLI456 FAE → CPH May 8, 10:35 UTCMay 8, 15:25 UTC4h 50m
2026-05-07 FLI450 FAE → CPH May 7, 17:35 UTCMay 8, 09:14 UTC15h 40m
2026-05-07 FLI453 CPH → FAE May 7, 10:55 UTCMay 7, 16:05 UTC5h 10m
2026-05-06 FLI450 FAE → CPH May 6, 17:40 UTCMay 7, 09:30 UTC15h 50m
2026-05-06 FLI453 CPH → FAE May 6, 11:25 UTCMay 6, 16:15 UTC4h 50m
2026-05-05 FLI450 FAE → CPH May 5, 23:05 UTCMay 6, 09:45 UTC10h 40m
2026-05-05 FLI459 CPH → FAE May 5, 17:10 UTCMay 5, 22:05 UTC4h 55m
2026-05-05 FLI453 CPH → FAE May 5, 10:55 UTCMay 5, 15:45 UTC4h 50m
2026-05-04 FLI459 CPH → FAE May 4, 17:10 UTCMay 5, 09:25 UTC16h 16m
2026-05-04 FLI453 CPH → FAE May 4, 10:45 UTCMay 4, 15:50 UTC5h 5m

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

Mode-S 45C86D frequently asked

What is Mode-S code 45C86D?
45C86D is an ICAO 24-bit transponder address. Allocated to Denmark. Assigned to OY-RCM.
Where is Mode-S 45C86D registered?
Mode-S code 45C86D is allocated to Denmark (DK). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 45C86D broadcasting right now?
Yes. Mode-S 45C86D is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 45C86D, octal 21344155, decimal 4,573,293.
What flights does 45C86D operate?
Mode-S 45C86D has broadcast 5 distinct callsigns, including FLI459, FLI453, FLI450, FLI456, FLI451.