Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

45D4E7

ICAO 24-bit transponder address · allocated to Denmark

Currently assigned to OY-UGG · PIPER PA-28-140/150/160/180

Hex
45D4E7
Octal
21352347
Decimal
4,576,487
Country
DK
Tail
OY-UGG
Type
P28A
No current signal · last broadcast 1d ago
Flights observed
58
Distinct callsigns
1
Country
DK
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 45D4E7.

Country allocation

The ICAO 24-bit address 45D4E7 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
OYUGG - 58 2026-07-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-16 OYUGG - Jul 16, 09:35 UTCJul 16, 09:55 UTC20m
2026-07-16 OYUGG - Jul 16, 08:40 UTCJul 16, 08:55 UTC15m
2026-07-16 OYUGG - Jul 16, 07:20 UTCJul 16, 07:45 UTC25m
2026-07-16 OYUGG - Jul 16, 05:00 UTCJul 16, 05:15 UTC15m
2026-07-15 OYUGG - Jul 15, 14:45 UTCJul 15, 15:00 UTC15m
2026-07-10 OYUGG - Jul 10, 13:30 UTCJul 10, 13:50 UTC20m
2026-07-10 OYUGG - Jul 10, 09:00 UTCJul 10, 09:15 UTC15m
2026-07-09 OYUGG - Jul 9, 17:00 UTCJul 9, 17:25 UTC25m
2026-07-09 OYUGG CNL → BYR Jul 9, 09:00 UTCJul 9, 09:55 UTC55m
2026-07-08 OYUGG - Jul 8, 15:45 UTCJul 8, 16:30 UTC45m
2026-07-08 OYUGG - Jul 8, 14:15 UTCJul 8, 15:10 UTC55m
2026-07-08 OYUGG - Jul 8, 06:55 UTCJul 8, 07:40 UTC45m
2026-07-01 OYUGG - Jul 1, 08:45 UTCJul 1, 09:25 UTC40m
2026-06-26 OYUGG - Jun 26, 11:34 UTCJun 26, 11:45 UTC10m
2026-06-26 OYUGG - Jun 26, 08:00 UTCJun 26, 08:15 UTC15m
2026-06-24 OYUGG - Jun 24, 18:55 UTCJun 24, 19:44 UTC50m
2026-06-22 OYUGG - Jun 22, 04:04 UTCJun 22, 04:59 UTC55m
2026-06-21 OYUGG - Jun 21, 10:14 UTCJun 21, 10:25 UTC10m
2026-06-20 OYUGG - Jun 20, 10:34 UTCJun 20, 10:55 UTC20m
2026-06-20 OYUGG - Jun 20, 06:49 UTCJun 20, 07:24 UTC35m
2026-06-14 OYUGG - Jun 14, 12:45 UTCJun 14, 13:40 UTC55m
2026-06-12 OYUGG - Jun 12, 11:40 UTCJun 12, 12:40 UTC1h 0m
2026-06-10 OYUGG - Jun 10, 13:45 UTCJun 10, 14:20 UTC35m
2026-06-10 OYUGG - Jun 10, 10:50 UTCJun 10, 11:35 UTC45m
2026-06-06 OYUGG - Jun 6, 16:34 UTCJun 6, 16:45 UTC10m
2026-06-02 OYUGG - Jun 2, 15:30 UTCJun 2, 15:55 UTC25m
2026-05-30 OYUGG - May 30, 12:45 UTCMay 30, 12:55 UTC10m
2026-05-29 OYUGG ODE → CNL May 29, 05:35 UTCMay 29, 06:25 UTC50m
2026-05-29 OYUGG - May 29, 03:50 UTCMay 29, 04:35 UTC45m
2026-05-28 OYUGG BYR → CNL May 28, 12:45 UTCMay 28, 14:00 UTC1h 15m
2026-05-28 OYUGG - May 28, 10:05 UTCMay 28, 10:15 UTC10m
2026-05-27 OYUGG - May 27, 11:35 UTCMay 27, 11:50 UTC15m
2026-05-27 OYUGG - May 27, 09:25 UTCMay 27, 09:45 UTC20m
2026-05-27 OYUGG - May 27, 08:05 UTCMay 27, 08:30 UTC25m
2026-05-27 OYUGG - May 27, 07:15 UTCMay 27, 07:35 UTC20m
2026-05-27 OYUGG - May 27, 06:29 UTCMay 27, 06:40 UTC10m
2026-05-25 OYUGG CNL → CNL May 25, 08:50 UTCMay 25, 09:20 UTC30m
2026-05-24 OYUGG - May 24, 08:25 UTCMay 24, 09:25 UTC1h 0m
2026-05-23 OYUGG - May 23, 12:25 UTCMay 23, 13:10 UTC45m
2026-05-22 OYUGG - May 22, 12:30 UTCMay 22, 12:40 UTC10m
2026-05-22 OYUGG - May 22, 10:55 UTCMay 22, 11:05 UTC10m
2026-05-12 OYUGG - May 12, 15:25 UTCMay 12, 16:10 UTC45m
2026-05-12 OYUGG - May 12, 14:00 UTCMay 12, 14:10 UTC10m
2026-04-30 OYUGG - Apr 30, 12:10 UTCApr 30, 13:45 UTC1h 35m
2026-04-29 OYUGG - Apr 29, 12:45 UTCApr 29, 13:45 UTC1h 0m
2026-04-28 OYUGG - Apr 28, 13:05 UTCApr 28, 13:55 UTC50m
2026-04-27 OYUGG - Apr 27, 16:30 UTCApr 27, 16:40 UTC10m
2026-04-27 OYUGG - Apr 27, 15:00 UTCApr 27, 15:15 UTC15m
2026-04-25 OYUGG - Apr 25, 14:30 UTCApr 25, 14:45 UTC15m
2026-04-25 OYUGG - Apr 25, 11:35 UTCApr 25, 11:50 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-UGG page for operator, model, and routing details .

Mode-S 45D4E7 frequently asked

What is Mode-S code 45D4E7?
45D4E7 is an ICAO 24-bit transponder address. Allocated to Denmark. Assigned to OY-UGG.
Where is Mode-S 45D4E7 registered?
Mode-S code 45D4E7 is allocated to Denmark (DK). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 45D4E7 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 45D4E7, octal 21352347, decimal 4,576,487.
What flights does 45D4E7 operate?
Mode-S 45D4E7 has broadcast 1 distinct callsign, including OYUGG.