Apparatus

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sensors Mode-S transponder

A920DB

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N6879R · CESSNA 402 Businessliner · operated by HYANNIS AIR SERVICE INC

Hex
A920DB
Octal
52220333
Decimal
11,083,995
Country
US
Tail
N6879R
Type
C402
No current signal · last broadcast 7d ago
Flights observed
123
Distinct callsigns
20
Country
US
Last broadcast
7d ago

Last known position

Most recent position reported by Mode-S A920DB.

Country allocation

The ICAO 24-bit address A920DB 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
KAP7 Cape Air 18 2026-05-18
KAP33 Cape Air 12 2026-05-22
KAP412 Cape Air 9 2026-05-08
KAP333 Cape Air 9 2026-04-28
KAP763 Cape Air 8 2026-05-13
KAP717 Cape Air 7 2026-05-06
KAP70 Cape Air 5 2026-05-14
KAP203 Cape Air 5 2026-05-10
KAP925 Cape Air 4 2026-04-24
KAP78 Cape Air 3 2026-05-03
KAP426 Cape Air 3 2026-05-12
KAP3285 Cape Air 3 2026-05-20
KAP3064 Cape Air 3 2026-04-22
KAP8380 - 2 2026-04-12
KAP635 Cape Air 2 2026-05-11
KAP60 Cape Air 2 2026-05-16
KAP5573 Cape Air 2 2026-04-24
KAP548 Cape Air 2 2026-04-19
KAP328 Cape Air 2 2026-05-05
KAP3041 Cape Air 2 2026-05-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-22 KAP33 ACK → BOS May 22, 20:10 UTCMay 22, 20:25 UTC15m
2026-05-22 KAP33 ACK → BOS May 22, 18:15 UTCMay 22, 19:00 UTC45m
2026-05-22 KAP33 ACK → BOS May 22, 16:25 UTCMay 22, 16:55 UTC30m
2026-05-22 KAP33 ACK → BOS May 22, 14:35 UTCMay 22, 15:05 UTC30m
2026-05-22 KAP33 ACK → BOS May 22, 13:05 UTCMay 22, 13:35 UTC30m
2026-05-22 KAP33 ACK → BOS May 22, 11:15 UTCMay 22, 11:55 UTC40m
2026-05-21 KAP33 ACK → BOS May 21, 19:55 UTCMay 21, 20:15 UTC20m
2026-05-21 KAP33 ACK → BOS May 21, 17:40 UTCMay 21, 18:05 UTC25m
2026-05-21 KAP33 ACK → BOS May 21, 16:40 UTCMay 21, 17:05 UTC25m
2026-05-21 KAP33 ACK → BOS May 21, 14:50 UTCMay 21, 15:15 UTC25m
2026-05-21 KAP33 ACK → BOS May 21, 13:15 UTCMay 21, 13:40 UTC25m
2026-05-21 KAP33 ACK → BOS May 21, 11:10 UTCMay 21, 12:00 UTC50m
2026-05-20 KAP3285 MVY → BOS May 20, 16:35 UTCMay 20, 16:45 UTC10m
2026-05-20 KAP3285 MVY → BOS May 20, 14:55 UTCMay 20, 15:25 UTC30m
2026-05-20 KAP210 ISP → BOS May 20, 12:35 UTCMay 20, 13:35 UTC1h 0m
2026-05-20 KAP3285 MVY → BOS May 20, 11:05 UTCMay 20, 11:55 UTC50m
2026-05-18 KAP7 BOS → BHB May 18, 20:15 UTCMay 18, 20:30 UTC15m
2026-05-18 KAP7 BOS → BHB May 18, 19:30 UTCMay 18, 19:40 UTC10m
2026-05-18 KAP7 BOS → BHB May 18, 18:00 UTCMay 18, 18:25 UTC25m
2026-05-18 KAP7 BOS → BHB May 18, 16:30 UTCMay 18, 17:00 UTC30m
2026-05-18 KAP7 BOS → BHB May 18, 14:50 UTCMay 18, 15:20 UTC30m
2026-05-17 KAP7 BOS → BHB May 17, 20:45 UTCMay 17, 21:01 UTC15m
2026-05-17 KAP7 BOS → BHB May 17, 19:25 UTCMay 17, 19:45 UTC20m
2026-05-17 KAP7 BOS → BHB May 17, 17:30 UTCMay 17, 18:30 UTC1h 0m
2026-05-17 KAP7 BOS → BHB May 17, 15:50 UTCMay 17, 16:10 UTC20m
2026-05-17 KAP7 BOS → BHB May 17, 13:45 UTCMay 17, 14:05 UTC20m
2026-05-17 KAP7 BOS → BHB May 17, 11:20 UTCMay 17, 12:05 UTC45m
2026-05-16 KAP7 BOS → BHB May 16, 21:10 UTCMay 16, 21:55 UTC45m
2026-05-16 KAP3041 MVY → BOS May 16, 19:30 UTCMay 16, 20:05 UTC35m
2026-05-16 KAP7 BOS → BHB May 16, 17:20 UTCMay 16, 17:45 UTC25m
2026-05-16 KAP60 RUT → BOS May 16, 15:31 UTCMay 16, 16:20 UTC50m
2026-05-16 KAP7 BOS → BHB May 16, 12:55 UTCMay 16, 13:41 UTC45m
2026-05-16 KAP7 BOS → BHB May 16, 11:25 UTCMay 16, 12:05 UTC40m
2026-05-15 KAP7 BOS → BHB May 15, 21:40 UTCMay 15, 22:35 UTC55m
2026-05-15 KAP3041 MVY → BOS May 15, 20:10 UTCMay 15, 21:00 UTC50m
2026-05-15 KAP7 BOS → BHB May 15, 17:45 UTCMay 15, 18:10 UTC25m
2026-05-15 KAP60 RUT → BOS May 15, 15:40 UTCMay 15, 16:45 UTC1h 5m
2026-05-15 KAP7 BOS → BHB May 15, 13:25 UTCMay 15, 14:25 UTC1h 0m
2026-05-14 KAP3061 MVY → BOS May 14, 20:55 UTCMay 14, 21:30 UTC35m
2026-05-14 KAP70 RUT → BOS May 14, 17:50 UTCMay 14, 18:20 UTC30m
2026-05-13 KAP70 RUT → BOS May 13, 19:30 UTCMay 13, 20:25 UTC55m
2026-05-13 KAP763 MVY → BOS May 13, 17:30 UTCMay 13, 18:15 UTC45m
2026-05-13 KAP763 MVY → BOS May 13, 15:55 UTCMay 13, 16:20 UTC25m
2026-05-13 KAP763 MVY → BOS May 13, 13:10 UTCMay 13, 13:35 UTC25m
2026-05-12 KAP426 BOS → AUG May 12, 19:30 UTCMay 12, 20:45 UTC1h 15m
2026-05-12 KAP426 BOS → AUG May 12, 17:40 UTCMay 12, 18:10 UTC30m
2026-05-12 KAP426 BOS → AUG May 12, 16:15 UTCMay 12, 16:40 UTC25m
2026-05-11 KAP70 RUT → BOS May 11, 19:35 UTCMay 11, 20:30 UTC55m
2026-05-11 KAP763 MVY → BOS May 11, 17:35 UTCMay 11, 18:20 UTC45m
2026-05-11 KAP635 STT → SJU May 11, 15:20 UTCMay 11, 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 N6879R page for operator, model, and routing details .

Mode-S A920DB frequently asked

What is Mode-S code A920DB?
A920DB is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N6879R.
Where is Mode-S A920DB registered?
Mode-S code A920DB 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 A920DB broadcasting right now?
No active broadcast right now. Last signal was 7d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A920DB, octal 52220333, decimal 11,083,995.
What flights does A920DB operate?
Mode-S A920DB has broadcast 20 distinct callsigns, including KAP7, KAP33, KAP412, KAP333, KAP763.