Apparatus

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sensors Mode-S transponder

A8FA3F

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N678JG · CESSNA 402 Businessliner · operated by HYANNIS AIR SERVICE INC DBA, CAPE AIR

Hex
A8FA3F
Octal
52175077
Decimal
11,074,111
Country
US
Tail
N678JG
Type
C402
No current signal · last broadcast 6h ago
Flights observed
144
Distinct callsigns
20
Country
US
Last broadcast
6h ago

Last known position

Most recent position reported by Mode-S A8FA3F.

Country allocation

The ICAO 24-bit address A8FA3F 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
KAP548 Cape Air 17 2026-06-02
KAP763 Cape Air 14 2026-05-20
KAP418 Cape Air 10 2026-05-22
KAP109 Cape Air 8 2026-05-14
KAP78 Cape Air 6 2026-05-16
KAP212 Cape Air 6 2026-05-22
KAP1838 Cape Air 6 2026-05-22
KAP925 Cape Air 5 2026-04-25
KAP811 Cape Air 5 2026-04-16
KAP616 Cape Air 5 2026-05-01
KAP95 Cape Air 4 2026-05-02
KAP115 Cape Air 4 2026-05-29
KAP70 Cape Air 3 2026-05-19
KAP60 Cape Air 3 2026-04-24
KAP527 Cape Air 3 2026-05-17
KAP501 Cape Air 3 2026-04-21
KAP426 Cape Air 3 2026-05-18
KAP1876 Cape Air 3 2026-05-16
KAP902 Cape Air 2 2026-04-24
KAP818 Cape Air 2 2026-04-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-02 KAP548 BHB → BOS Jun 2, 17:05 UTCJun 2, 17:30 UTC25m
2026-06-02 KAP548 BHB → BOS Jun 2, 16:20 UTCJun 2, 16:35 UTC15m
2026-06-02 KAP548 BHB → BOS Jun 2, 13:50 UTCJun 2, 14:50 UTC1h 0m
2026-06-02 KAP548 BHB → BOS Jun 2, 11:00 UTCJun 2, 12:10 UTC1h 10m
2026-06-01 KAP548 BHB → BOS Jun 1, 21:20 UTCJun 1, 21:30 UTC10m
2026-06-01 KAP548 BHB → BOS Jun 1, 20:25 UTCJun 1, 20:50 UTC25m
2026-06-01 KAP548 BHB → BOS Jun 1, 17:50 UTCJun 1, 18:15 UTC25m
2026-06-01 KAP548 BHB → BOS Jun 1, 17:05 UTCJun 1, 17:20 UTC15m
2026-06-01 KAP548 BHB → BOS Jun 1, 13:00 UTCJun 1, 14:05 UTC1h 5m
2026-06-01 KAP548 BHB → BOS Jun 1, 11:50 UTCJun 1, 12:20 UTC30m
2026-06-01 KAP548 BHB → BOS Jun 1, 11:10 UTCJun 1, 11:20 UTC10m
2026-05-31 KAP548 BHB → BOS May 31, 20:45 UTCMay 31, 21:40 UTC55m
2026-05-31 KAP548 BHB → BOS May 31, 16:15 UTCMay 31, 17:30 UTC1h 15m
2026-05-31 KAP548 BHB → BOS May 31, 13:35 UTCMay 31, 14:40 UTC1h 5m
2026-05-31 KAP548 BHB → BOS May 31, 11:20 UTCMay 31, 12:25 UTC1h 5m
2026-05-29 KAP115 RKD → BOS May 29, 20:40 UTCMay 29, 21:45 UTC1h 5m
2026-05-29 KAP1834 BHB → BOS May 29, 16:25 UTCMay 29, 17:35 UTC1h 10m
2026-05-29 KAP115 RKD → BOS May 29, 14:00 UTCMay 29, 15:05 UTC1h 5m
2026-05-29 KAP1830 BHB → BOS May 29, 11:10 UTCMay 29, 12:15 UTC1h 5m
2026-05-28 KAP115 RKD → BOS May 28, 20:55 UTCMay 28, 21:25 UTC30m
2026-05-28 KAP1834 BHB → BOS May 28, 16:25 UTCMay 28, 17:35 UTC1h 10m
2026-05-28 KAP115 RKD → BOS May 28, 14:05 UTCMay 28, 15:10 UTC1h 5m
2026-05-28 KAP1830 BHB → BOS May 28, 11:20 UTCMay 28, 12:30 UTC1h 10m
2026-05-23 KAP548 BHB → BOS May 23, 21:20 UTCMay 23, 21:30 UTC10m
2026-05-23 KAP548 BHB → BOS May 23, 20:30 UTCMay 23, 20:50 UTC20m
2026-05-22 KAP1838 BHB → BOS May 22, 18:35 UTCMay 22, 19:45 UTC1h 10m
2026-05-22 KAP418 BOS → BHB May 22, 16:00 UTCMay 22, 17:05 UTC1h 5m
2026-05-22 KAP212 BHB → BOS May 22, 14:05 UTCMay 22, 15:00 UTC55m
2026-05-21 KAP217 BOS → ISP May 21, 22:45 UTCMay 21, 23:50 UTC1h 5m
2026-05-21 KAP1838 BHB → BOS May 21, 18:25 UTCMay 21, 19:40 UTC1h 15m
2026-05-21 KAP418 BOS → BHB May 21, 16:05 UTCMay 21, 17:10 UTC1h 5m
2026-05-21 KAP212 BHB → BOS May 21, 14:15 UTCMay 21, 15:10 UTC55m
2026-05-20 KAP418 BOS → BHB May 20, 23:40 UTCMay 21, 00:50 UTC1h 10m
2026-05-20 KAP763 MVY → BOS May 20, 19:35 UTCMay 20, 20:05 UTC30m
2026-05-20 KAP763 MVY → BOS May 20, 17:35 UTCMay 20, 18:00 UTC25m
2026-05-20 KAP763 MVY → BOS May 20, 15:15 UTCMay 20, 15:55 UTC40m
2026-05-20 KAP763 MVY → BOS May 20, 13:05 UTCMay 20, 13:55 UTC50m
2026-05-19 KAP70 RUT → BOS May 19, 19:15 UTCMay 19, 20:10 UTC55m
2026-05-19 KAP763 MVY → BOS May 19, 17:45 UTCMay 19, 18:35 UTC50m
2026-05-19 KAP763 MVY → BOS May 19, 16:05 UTCMay 19, 16:35 UTC30m
2026-05-19 KAP763 MVY → BOS May 19, 14:30 UTCMay 19, 14:55 UTC25m
2026-05-18 KAP70 RUT → BOS May 18, 19:45 UTCMay 18, 20:30 UTC45m
2026-05-18 KAP763 MVY → BOS May 18, 17:40 UTCMay 18, 18:30 UTC49m
2026-05-18 KAP426 BOS → AUG May 18, 16:20 UTCMay 18, 16:40 UTC20m
2026-05-17 KAP527 BOS → BHB May 17, 23:25 UTCMay 18, 00:30 UTC1h 5m
2026-05-17 KAP5221 ACK → BOS May 17, 21:40 UTCMay 17, 22:10 UTC30m
2026-05-17 KAP527 BOS → BHB May 17, 19:01 UTCMay 17, 19:35 UTC35m
2026-05-17 KAP5241 ACK → BOS May 17, 17:35 UTCMay 17, 18:05 UTC30m
2026-05-17 KAP527 BOS → BHB May 17, 16:45 UTCMay 17, 16:55 UTC10m
2026-05-16 KAP78 BOS → HYA May 16, 20:30 UTCMay 16, 20:55 UTC25m

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 N678JG page for operator, model, and routing details .

Mode-S A8FA3F frequently asked

What is Mode-S code A8FA3F?
A8FA3F is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N678JG.
Where is Mode-S A8FA3F registered?
Mode-S code A8FA3F 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 A8FA3F broadcasting right now?
No active broadcast right now. Last signal was 6h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A8FA3F, octal 52175077, decimal 11,074,111.
What flights does A8FA3F operate?
Mode-S A8FA3F has broadcast 20 distinct callsigns, including KAP548, KAP763, KAP418, KAP109, KAP78.