Apparatus

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sensors Mode-S transponder

A6717A

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N514NC · CESSNA 402 Businessliner · operated by HYANNIS AIR SERVICE INC

Hex
A6717A
Octal
51470572
Decimal
10,908,026
Country
US
Tail
N514NC
Type
C402
No current signal · last broadcast 2d ago
Flights observed
111
Distinct callsigns
20
Country
US
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S A6717A.

Country allocation

The ICAO 24-bit address A6717A 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
KAP8380 Cape Air 11 2026-05-08
KAP707 Cape Air 9 2026-05-25
KAP296 Cape Air 7 2026-05-16
KAP155 Cape Air 7 2026-05-18
KAP548 Cape Air 6 2026-04-19
KAP109 Cape Air 6 2026-04-30
KAP747 Cape Air 5 2026-05-13
KAP616 Cape Air 5 2026-05-17
KAP115 Cape Air 5 2026-04-28
KAP902 Cape Air 4 2026-05-20
KAP811 Cape Air 4 2026-05-14
KAP717 Cape Air 4 2026-05-13
KAP10 Cape Air 4 2026-05-06
KAP7 Cape Air 3 2026-04-13
KAP1834 Cape Air 3 2026-04-28
KAP1830 Cape Air 3 2026-04-28
KAP82 Cape Air 2 2026-05-09
KAP5241 Cape Air 2 2026-04-30
KAP426 Cape Air 2 2026-05-22
KAP412 Cape Air 2 2026-05-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-27 KAPT110 - May 27, 12:10 UTCMay 27, 13:45 UTC1h 35m
2026-05-25 KAP707 RKD → BOS May 25, 19:50 UTCMay 25, 20:15 UTC25m
2026-05-25 KAP707 RKD → BOS May 25, 18:25 UTCMay 25, 19:05 UTC40m
2026-05-22 KAP426 BOS → AUG May 22, 01:15 UTCMay 22, 01:45 UTC30m
2026-05-21 KAP426 BOS → AUG May 21, 20:45 UTCMay 21, 21:15 UTC30m
2026-05-20 KAP6103 ACK → BOS May 20, 21:15 UTCMay 20, 21:40 UTC25m
2026-05-20 KAP902 BOS → BHB May 20, 20:20 UTCMay 20, 20:40 UTC20m
2026-05-20 KAP402 AUG → BOS May 20, 17:15 UTCMay 20, 18:20 UTC1h 5m
2026-05-20 KAP402 AUG → BOS May 20, 15:15 UTCMay 20, 16:10 UTC55m
2026-05-19 KAP412 MVY → BOS May 19, 20:15 UTCMay 19, 20:55 UTC40m
2026-05-19 KAP412 MVY → BOS May 19, 18:20 UTCMay 19, 18:35 UTC15m
2026-05-18 KAP155 BOS → BHB May 18, 21:35 UTCMay 18, 22:40 UTC1h 5m
2026-05-18 KAP155 BOS → BHB May 18, 19:10 UTCMay 18, 19:40 UTC30m
2026-05-18 KAP155 BOS → BHB May 18, 17:55 UTCMay 18, 18:25 UTC30m
2026-05-18 KAP155 BOS → BHB May 18, 16:35 UTCMay 18, 17:05 UTC30m
2026-05-18 KAP155 BOS → BHB May 18, 14:50 UTCMay 18, 15:25 UTC35m
2026-05-18 KAP155 BOS → BHB May 18, 13:15 UTCMay 18, 13:50 UTC35m
2026-05-18 KAP155 BOS → BHB May 18, 12:15 UTCMay 18, 12:30 UTC15m
2026-05-17 KAP707 RKD → BOS May 17, 20:50 UTCMay 17, 21:50 UTC1h 0m
2026-05-17 KAP707 RKD → BOS May 17, 19:35 UTCMay 17, 19:55 UTC20m
2026-05-17 KAP616 BOS → ACK May 17, 17:01 UTCMay 17, 17:25 UTC25m
2026-05-17 KAP5573 BOS → SLK May 17, 14:35 UTCMay 17, 15:55 UTC1h 20m
2026-05-17 KAP616 BOS → ACK May 17, 12:35 UTCMay 17, 12:55 UTC20m
2026-05-16 KAP296 BOS → HYA May 16, 21:00 UTCMay 16, 22:05 UTC1h 5m
2026-05-16 KAP5202 ACK → BOS May 16, 19:20 UTCMay 16, 20:05 UTC45m
2026-05-16 KAP296 BOS → HYA May 16, 17:30 UTCMay 16, 18:00 UTC30m
2026-05-16 KAP5182 ACK → BOS May 16, 15:35 UTCMay 16, 16:20 UTC45m
2026-05-16 KAP296 BOS → HYA May 16, 14:31 UTCMay 16, 14:46 UTC15m
2026-05-15 KAP296 BOS → HYA May 15, 23:10 UTCMay 15, 23:20 UTC10m
2026-05-15 KAP296 BOS → HYA May 15, 18:25 UTCMay 15, 18:40 UTC15m
2026-05-15 KAP296 BOS → HYA May 15, 16:00 UTCMay 15, 17:10 UTC1h 10m
2026-05-15 KAP296 BOS → HYA May 15, 13:40 UTCMay 15, 14:55 UTC1h 14m
2026-05-14 KAP811 MVY → EWB May 14, 20:20 UTCMay 14, 21:40 UTC1h 20m
2026-05-14 KAP5101 ACK → BOS May 14, 18:45 UTCMay 14, 19:20 UTC35m
2026-05-14 KAP811 MVY → EWB May 14, 15:25 UTCMay 14, 16:05 UTC40m
2026-05-14 KAP811 MVY → EWB May 14, 13:40 UTCMay 14, 14:20 UTC40m
2026-05-14 KAP811 MVY → EWB May 14, 12:40 UTCMay 14, 12:55 UTC15m
2026-05-13 KAP747 ORD → MBL May 13, 23:45 UTCMay 14, 00:45 UTC1h 0m
2026-05-13 KAP747 ORD → MBL May 13, 21:55 UTCMay 13, 22:25 UTC30m
2026-05-13 KAP747 ORD → MBL May 13, 20:20 UTCMay 13, 20:55 UTC35m
2026-05-13 KAP717 SLK → BOS May 13, 17:05 UTCMay 13, 17:25 UTC20m
2026-05-13 KAP717 SLK → BOS May 13, 14:35 UTCMay 13, 15:35 UTC1h 0m
2026-05-13 KAP717 SLK → BOS May 13, 12:40 UTCMay 13, 13:10 UTC30m
2026-05-13 KAP717 SLK → BOS May 13, 11:25 UTCMay 13, 12:00 UTC35m
2026-05-12 KAP240 BOS → HYA May 12, 22:20 UTCMay 12, 23:05 UTC45m
2026-05-12 KAP3181 MVY → BOS May 12, 20:25 UTCMay 12, 21:01 UTC35m
2026-05-12 KAP902 BOS → BHB May 12, 18:50 UTCMay 12, 19:15 UTC25m
2026-05-12 KAP3081 MVY → BOS May 12, 17:30 UTCMay 12, 17:55 UTC25m
2026-05-12 KAP902 BOS → BHB May 12, 16:30 UTCMay 12, 16:45 UTC15m
2026-05-11 KAP707 RKD → BOS May 11, 22:05 UTCMay 11, 22:35 UTC29m

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 N514NC page for operator, model, and routing details .

Mode-S A6717A frequently asked

What is Mode-S code A6717A?
A6717A is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N514NC.
Where is Mode-S A6717A registered?
Mode-S code A6717A 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 A6717A broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A6717A, octal 51470572, decimal 10,908,026.
What flights does A6717A operate?
Mode-S A6717A has broadcast 20 distinct callsigns, including KAP8380, KAP707, KAP296, KAP155, KAP548.