Apparatus

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sensors Mode-S transponder

A476DE

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N387SC · BEECH 300 Super King Air · operated by HERITAGE AVIATION MANAGEMENT LTD

Hex
A476DE
Octal
51073336
Decimal
10,778,334
Country
US
Tail
N387SC
Type
BE30
No current signal · last broadcast Jul 26, 17:25 UTC
Flights observed
70
Distinct callsigns
1
Country
US
Last broadcast
Jul 26, 17:25 UTC

Last known position

Most recent position reported by Mode-S A476DE.

Country allocation

The ICAO 24-bit address A476DE falls within the block assigned to United States (US) by ICAO Annex 10, Volume III. Every aircraft registered in United States 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
N387SC - 70 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 N387SC GUA → FLL Jul 26, 14:00 UTCJul 26, 17:25 UTC3h 25m
2026-07-25 N387SC - Jul 25, 17:55 UTCJul 25, 18:05 UTC10m
2026-07-25 N387SC - Jul 25, 14:25 UTCJul 25, 17:00 UTC2h 35m
2026-07-21 N387SC - Jul 21, 19:40 UTCJul 21, 20:05 UTC25m
2026-07-21 N387SC - Jul 21, 16:40 UTCJul 21, 17:00 UTC20m
2026-07-21 N387SC - Jul 21, 14:45 UTCJul 21, 14:55 UTC10m
2026-07-21 N387SC - Jul 21, 13:35 UTCJul 21, 13:55 UTC20m
2026-07-21 N387SC - Jul 21, 12:35 UTCJul 21, 12:50 UTC15m
2026-07-21 N387SC - Jul 21, 11:00 UTCJul 21, 11:15 UTC15m
2026-07-15 N387SC - Jul 15, 18:40 UTCJul 15, 18:50 UTC10m
2026-07-15 N387SC - Jul 15, 11:00 UTCJul 15, 12:20 UTC1h 20m
2026-07-09 N387SC - Jul 9, 14:55 UTCJul 9, 15:15 UTC20m
2026-07-09 N387SC - Jul 9, 14:00 UTCJul 9, 14:15 UTC15m
2026-07-08 N387SC - Jul 8, 18:30 UTCJul 8, 18:40 UTC10m
2026-07-08 N387SC - Jul 8, 16:10 UTCJul 8, 16:20 UTC10m
2026-07-08 N387SC - Jul 8, 11:55 UTCJul 8, 12:05 UTC10m
2026-07-08 N387SC - Jul 8, 10:10 UTCJul 8, 10:20 UTC10m
2026-06-30 N387SC - Jun 30, 17:55 UTCJun 30, 18:05 UTC10m
2026-06-30 N387SC - Jun 30, 13:15 UTCJun 30, 13:40 UTC25m
2026-06-25 N387SC - Jun 25, 18:50 UTCJun 25, 19:24 UTC35m
2026-06-19 N387SC - Jun 19, 17:29 UTCJun 19, 17:44 UTC15m
2026-06-19 N387SC - Jun 19, 15:24 UTCJun 19, 15:39 UTC15m
2026-06-18 N387SC - Jun 18, 18:30 UTCJun 18, 19:15 UTC45m
2026-06-18 N387SC - Jun 18, 17:30 UTCJun 18, 17:35 UTC5m
2026-06-18 N387SC - Jun 18, 15:50 UTCJun 18, 16:05 UTC15m
2026-06-17 N387SC - Jun 17, 16:55 UTCJun 17, 17:40 UTC45m
2026-06-17 N387SC BOG → EOH Jun 17, 15:35 UTCJun 17, 16:25 UTC50m
2026-06-10 N387SC - Jun 10, 18:50 UTCJun 10, 19:10 UTC20m
2026-06-10 N387SC - Jun 10, 15:15 UTCJun 10, 15:45 UTC30m
2026-06-06 N387SC - Jun 6, 20:49 UTCJun 6, 21:09 UTC20m
2026-06-06 N387SC - Jun 6, 14:30 UTCJun 6, 15:19 UTC50m
2026-05-28 N387SC - May 28, 14:50 UTCMay 28, 18:40 UTC3h 50m
2026-05-27 N387SC - May 27, 16:25 UTCMay 27, 17:30 UTC1h 5m
2026-05-27 N387SC - May 27, 00:04 UTCMay 27, 00:30 UTC25m
2026-05-21 N387SC - May 21, 23:05 UTCMay 22, 00:00 UTC55m
2026-05-21 N387SC - May 21, 20:25 UTCMay 21, 22:20 UTC1h 55m
2026-05-21 N387SC - May 21, 17:30 UTCMay 21, 17:40 UTC10m
2026-05-21 N387SC - May 21, 16:20 UTCMay 21, 16:50 UTC30m
2026-05-20 N387SC - May 20, 18:55 UTCMay 20, 19:25 UTC30m
2026-05-20 N387SC - May 20, 17:05 UTCMay 20, 17:15 UTC10m
2026-05-20 N387SC - May 20, 14:10 UTCMay 20, 16:15 UTC2h 5m
2026-05-20 N387SC - May 20, 00:40 UTCMay 20, 02:45 UTC2h 5m
2026-05-19 N387SC - May 19, 20:40 UTCMay 19, 23:35 UTC2h 55m
2026-05-19 N387SC - May 19, 19:05 UTCMay 19, 19:30 UTC25m
2026-05-19 N387SC - May 19, 17:00 UTCMay 19, 18:00 UTC1h 0m
2026-05-18 N387SC - May 18, 22:25 UTCMay 18, 23:00 UTC35m
2026-05-18 N387SC - May 18, 20:50 UTCMay 18, 21:50 UTC1h 0m
2026-05-18 N387SC - May 18, 16:35 UTCMay 18, 19:45 UTC3h 9m
2026-05-15 N387SC - May 15, 17:55 UTCMay 15, 18:10 UTC15m
2026-05-15 N387SC - May 15, 15:20 UTCMay 15, 15:55 UTC35m

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 N387SC page for operator, model, and routing details .

Mode-S A476DE frequently asked

What is Mode-S code A476DE?
A476DE is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N387SC.
Where is Mode-S A476DE registered?
Mode-S code A476DE is allocated to United States (US). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is A476DE broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 17:25 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A476DE, octal 51073336, decimal 10,778,334.
What flights does A476DE operate?
Mode-S A476DE has broadcast 1 distinct callsign, including N387SC.