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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 Jul 26, 22:30 UTC
Flights observed
269
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:30 UTC

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
KAP235 - 19 2026-07-18
KAP8380 - 17 2026-07-02
KAP212 - 15 2026-07-18
KAP418 - 12 2026-07-07
KAP707 - 11 2026-07-05
KAP98 Cape Air 10 2026-07-23
KAP747 Cape Air 10 2026-06-01
KAP210 - 9 2026-07-17
KAP216 - 8 2026-07-10
KAP155 Cape Air 8 2026-06-02
KAP296 Cape Air 7 2026-05-16
KAP902 - 6 2026-07-02
KAP763 - 6 2026-07-03
KAP635 Cape Air 6 2026-06-03
KAP548 Cape Air 6 2026-04-19
KAP109 Cape Air 6 2026-04-30
KAP7 - 5 2026-07-03
KAP616 Cape Air 5 2026-05-17
KAP115 Cape Air 5 2026-04-28
KAP811 Cape Air 4 2026-05-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 KAP1841 RKD → BOS Jul 26, 21:50 UTCJul 26, 22:30 UTC40m
2026-07-26 KAP1838 BHB → BOS Jul 26, 19:45 UTCJul 26, 21:05 UTC1h 20m
2026-07-26 KAP1833 BOS → BHB Jul 26, 14:15 UTCJul 26, 15:20 UTC1h 5m
2026-07-26 KAP1832 BHB → BOS Jul 26, 12:15 UTCJul 26, 13:30 UTC1h 15m
2026-07-25 KAP1841 RKD → BOS Jul 25, 22:10 UTCJul 25, 23:20 UTC1h 10m
2026-07-25 KAP1838 BHB → BOS Jul 25, 19:55 UTCJul 25, 21:00 UTC1h 5m
2026-07-25 KAP1833 BOS → BHB Jul 25, 14:05 UTCJul 25, 15:10 UTC1h 5m
2026-07-25 KAP1832 - Jul 25, 12:05 UTCJul 25, 13:10 UTC1h 5m
2026-07-24 KAP1841 RKD → BOS Jul 24, 22:15 UTCJul 24, 23:20 UTC1h 5m
2026-07-24 KAP1838 BHB → BOS Jul 24, 19:55 UTCJul 24, 21:10 UTC1h 15m
2026-07-24 KAP1833 BOS → BHB Jul 24, 14:15 UTCJul 24, 15:10 UTC55m
2026-07-24 KAP1832 - Jul 24, 12:15 UTCJul 24, 13:30 UTC1h 15m
2026-07-23 KAP98 STX → SJU Jul 23, 22:30 UTCJul 23, 23:35 UTC1h 5m
2026-07-23 KAP98 STX → SJU Jul 23, 20:15 UTCJul 23, 21:30 UTC1h 15m
2026-07-23 KAP98 STX → SJU Jul 23, 14:25 UTCJul 23, 15:20 UTC55m
2026-07-23 KAP98 STX → SJU Jul 23, 12:20 UTCJul 23, 13:30 UTC1h 10m
2026-07-22 KAP98 STX → SJU Jul 22, 14:25 UTCJul 22, 15:35 UTC1h 10m
2026-07-22 KAP98 STX → SJU Jul 22, 12:25 UTCJul 22, 13:40 UTC1h 15m
2026-07-21 KAP98 STX → SJU Jul 21, 14:20 UTCJul 21, 15:20 UTC1h 0m
2026-07-21 KAP98 STX → SJU Jul 21, 12:15 UTCJul 21, 13:30 UTC1h 15m
2026-07-20 KAP98 STX → SJU Jul 20, 22:50 UTCJul 20, 23:55 UTC1h 5m
2026-07-20 KAP98 STX → SJU Jul 20, 20:40 UTCJul 20, 21:50 UTC1h 10m
2026-07-20 KAP186 - Jul 20, 17:30 UTCJul 20, 18:30 UTC1h 0m
2026-07-20 KAP1844 - Jul 20, 15:25 UTCJul 20, 16:45 UTC1h 20m
2026-07-20 KAP3285 MVY → BOS Jul 20, 13:25 UTCJul 20, 14:40 UTC1h 15m
2026-07-20 KAP627 SLK → BOS Jul 20, 01:25 UTCJul 20, 01:55 UTC30m
2026-07-20 KAP5621 ACK → BOS Jul 20, 00:05 UTCJul 20, 00:35 UTC30m
2026-07-19 KAP627 SLK → BOS Jul 19, 22:40 UTCJul 19, 23:10 UTC30m
2026-07-19 KAP5341 - Jul 19, 21:05 UTCJul 19, 21:40 UTC35m
2026-07-19 KAP627 - Jul 19, 19:45 UTCJul 19, 20:15 UTC30m
2026-07-19 KAP5122 - Jul 19, 18:30 UTCJul 19, 19:00 UTC30m
2026-07-19 KAP627 - Jul 19, 17:30 UTCJul 19, 17:50 UTC20m
2026-07-18 KAP328 BOS → BHB Jul 18, 18:20 UTCJul 18, 18:30 UTC10m
2026-07-18 KAP235 - Jul 18, 15:05 UTCJul 18, 15:40 UTC35m
2026-07-18 KAP212 - Jul 18, 13:10 UTCJul 18, 14:05 UTC55m
2026-07-17 KAP235 - Jul 17, 21:00 UTCJul 17, 21:50 UTC50m
2026-07-17 KAP212 - Jul 17, 19:05 UTCJul 17, 20:04 UTC1h 0m
2026-07-17 KAP235 BOS → ISP Jul 17, 12:55 UTCJul 17, 13:55 UTC1h 0m
2026-07-17 KAP210 - Jul 17, 11:00 UTCJul 17, 12:00 UTC1h 0m
2026-07-16 KAP235 - Jul 16, 20:09 UTCJul 16, 21:19 UTC1h 10m
2026-07-16 KAP212 - Jul 16, 18:25 UTCJul 16, 19:25 UTC1h 0m
2026-07-16 KAP235 - Jul 16, 13:54 UTCJul 16, 14:55 UTC1h 0m
2026-07-16 KAP210 - Jul 16, 11:40 UTCJul 16, 12:40 UTC1h 0m
2026-07-15 KAP235 BOS → ISP Jul 15, 20:20 UTCJul 15, 21:25 UTC1h 5m
2026-07-15 KAP212 - Jul 15, 18:20 UTCJul 15, 19:20 UTC1h 0m
2026-07-15 KAP235 - Jul 15, 13:35 UTCJul 15, 14:40 UTC1h 5m
2026-07-15 KAP210 ISP → BOS Jul 15, 11:25 UTCJul 15, 12:35 UTC1h 10m
2026-07-14 KAP235 BOS → ISP Jul 14, 20:30 UTCJul 14, 21:30 UTC1h 0m
2026-07-14 KAP212 - Jul 14, 18:20 UTCJul 14, 19:25 UTC1h 5m
2026-07-14 KAP235 - Jul 14, 13:20 UTCJul 14, 14:15 UTC55m

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 Jul 26, 22:30 UTC.
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 KAP235, KAP8380, KAP212, KAP418, KAP707.