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sensors Mode-S transponder

A447D5

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N375R · CESSNA 402 Businessliner · operated by HYANNIS AIR SERVICE INC DBA, CAPE AIR

Hex
A447D5
Octal
51043725
Decimal
10,766,293
Country
US
Tail
N375R
Type
C402
No current signal · last broadcast Jul 16, 13:25 UTC
Flights observed
278
Distinct callsigns
20
Country
US
Last broadcast
Jul 16, 13:25 UTC

Last known position

Most recent position reported by Mode-S A447D5.

Country allocation

The ICAO 24-bit address A447D5 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 20 distinct

Callsign Airline Flights Last seen
KAP109 - 29 2026-06-19
KAP10 - 24 2026-07-16
KAP747 Cape Air 17 2026-05-20
KAP6 - 11 2026-06-19
KAP527 - 11 2026-07-15
KAP519 Cape Air 10 2026-05-22
KAP394 - 10 2026-07-01
KAP413 - 9 2026-06-21
KAP7 - 8 2026-07-12
KAP412 - 8 2026-06-24
KAP278 - 8 2026-07-04
KAP155 - 8 2026-06-16
KAP1271 Cape Air 8 2026-06-10
KAP110 - 7 2026-07-10
KAP3285 - 5 2026-07-07
KAP111 Cape Air 5 2026-06-06
KAP925 - 4 2026-07-11
KAP87 - 4 2026-06-18
KAP635 - 4 2026-06-15
KAP616 Cape Air 4 2026-06-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-16 KAP10 - Jul 16, 10:50 UTCJul 16, 13:25 UTC2h 35m
2026-07-15 KAP527 - Jul 15, 20:30 UTCJul 15, 20:50 UTC20m
2026-07-15 KAP527 BOS → ACK Jul 15, 19:30 UTCJul 15, 20:00 UTC30m
2026-07-15 KAP3241 - Jul 15, 16:05 UTCJul 15, 16:40 UTC35m
2026-07-15 KAP527 BOS → MVY Jul 15, 14:25 UTCJul 15, 14:50 UTC25m
2026-07-15 KAP3221 MVY → BOS Jul 15, 12:40 UTCJul 15, 13:15 UTC35m
2026-07-15 KAP527 - Jul 15, 11:05 UTCJul 15, 11:20 UTC15m
2026-07-14 KAP527 - Jul 14, 19:30 UTCJul 14, 19:45 UTC15m
2026-07-14 KAP527 - Jul 14, 18:25 UTCJul 14, 18:40 UTC15m
2026-07-14 KAP527 BOS → MVY Jul 14, 17:25 UTCJul 14, 17:50 UTC25m
2026-07-14 KAP3241 - Jul 14, 15:55 UTCJul 14, 16:35 UTC40m
2026-07-14 KAP527 BOS → MVY Jul 14, 14:15 UTCJul 14, 14:40 UTC25m
2026-07-14 KAP3221 - Jul 14, 12:00 UTCJul 14, 13:25 UTC1h 25m
2026-07-14 KAP527 - Jul 14, 11:00 UTCJul 14, 11:20 UTC20m
2026-07-13 KAP10 - Jul 13, 19:15 UTCJul 13, 19:30 UTC15m
2026-07-13 KAP10 - Jul 13, 17:25 UTCJul 13, 18:25 UTC1h 0m
2026-07-13 KAP10 - Jul 13, 16:05 UTCJul 13, 16:40 UTC35m
2026-07-13 KAP10 - Jul 13, 14:15 UTCJul 13, 14:40 UTC25m
2026-07-12 KAP15 - Jul 12, 20:20 UTCJul 12, 21:45 UTC1h 25m
2026-07-12 KAP7 - Jul 12, 15:05 UTCJul 12, 15:50 UTC45m
2026-07-12 KAP7 - Jul 12, 13:15 UTCJul 12, 14:10 UTC55m
2026-07-11 KAP95 BOS → BOS Jul 11, 22:55 UTCJul 12, 01:05 UTC2h 10m
2026-07-11 KAP1006 - Jul 11, 20:20 UTCJul 11, 21:00 UTC40m
2026-07-11 KAP925 - Jul 11, 17:40 UTCJul 11, 18:20 UTC40m
2026-07-11 KAP1852 - Jul 11, 15:30 UTCJul 11, 16:30 UTC1h 0m
2026-07-11 KAP925 - Jul 11, 13:15 UTCJul 11, 14:10 UTC55m
2026-07-10 KAP1034 - Jul 10, 21:35 UTCJul 10, 22:40 UTC1h 5m
2026-07-10 KAP388 - Jul 10, 19:25 UTCJul 10, 20:40 UTC1h 15m
2026-07-10 KAP925 - Jul 10, 17:10 UTCJul 10, 18:40 UTC1h 30m
2026-07-10 KAP925 - Jul 10, 13:40 UTCJul 10, 16:10 UTC2h 30m
2026-07-10 KAP110 - Jul 10, 11:10 UTCJul 10, 12:30 UTC1h 20m
2026-07-09 KAP110 - Jul 9, 20:55 UTCJul 9, 22:15 UTC1h 20m
2026-07-09 KAP110 - Jul 9, 18:55 UTCJul 9, 20:00 UTC1h 5m
2026-07-09 KAP110 - Jul 9, 15:55 UTCJul 9, 17:15 UTC1h 20m
2026-07-09 KAP110 - Jul 9, 11:15 UTCJul 9, 12:20 UTC1h 5m
2026-07-08 KAP110 - Jul 8, 17:10 UTCJul 8, 18:25 UTC1h 15m
2026-07-08 KAP110 - Jul 8, 14:30 UTCJul 8, 16:00 UTC1h 30m
2026-07-08 KAP10 - Jul 8, 11:30 UTCJul 8, 12:45 UTC1h 15m
2026-07-07 KAP3285 - Jul 7, 19:20 UTCJul 7, 19:45 UTC25m
2026-07-07 KAP3285 - Jul 7, 17:25 UTCJul 7, 18:40 UTC1h 15m
2026-07-07 KAP3241 - Jul 7, 16:05 UTCJul 7, 16:45 UTC40m
2026-07-07 KAP3285 - Jul 7, 14:40 UTCJul 7, 15:10 UTC30m
2026-07-07 KAP3221 - Jul 7, 13:00 UTCJul 7, 13:30 UTC30m
2026-07-07 KAP3285 - Jul 7, 12:15 UTCJul 7, 12:30 UTC15m
2026-07-07 KAP3285 - Jul 7, 11:15 UTCJul 7, 11:35 UTC20m
2026-07-06 KAP527 - Jul 6, 17:00 UTCJul 6, 17:30 UTC30m
2026-07-06 KAP943 - Jul 6, 16:05 UTCJul 6, 16:30 UTC25m
2026-07-06 KAP527 - Jul 6, 14:15 UTCJul 6, 14:35 UTC20m
2026-07-05 KAP3291 - Jul 5, 23:50 UTCJul 6, 00:50 UTC1h 0m
2026-07-05 KAP3061 - Jul 5, 22:25 UTCJul 5, 22:55 UTC30m

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 N375R page for operator, model, and routing details .

Mode-S A447D5 frequently asked

What is Mode-S code A447D5?
A447D5 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N375R.
Where is Mode-S A447D5 registered?
Mode-S code A447D5 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 A447D5 broadcasting right now?
No active broadcast right now. Last signal was Jul 16, 13:25 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A447D5, octal 51043725, decimal 10,766,293.
What flights does A447D5 operate?
Mode-S A447D5 has broadcast 20 distinct callsigns, including KAP109, KAP10, KAP747, KAP6, KAP527.