Apparatus

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sensors Mode-S transponder

A697FD

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N524CA · CESSNA 402 Businessliner · operated by HYANNIS AIR SERVICE INC DBA, CAPE AIR

Hex
A697FD
Octal
51513775
Decimal
10,917,885
Country
US
Tail
N524CA
Type
C402
No current signal · last broadcast 3d ago
Flights observed
298
Distinct callsigns
20
Country
US
Last broadcast
3d ago

Last known position

Most recent position reported by Mode-S A697FD.

Country allocation

The ICAO 24-bit address A697FD 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
KAP876 Cape Air 45 2026-06-14
KAP527 - 18 2026-07-05
KAP747 Cape Air 15 2026-06-10
KAP548 Cape Air 15 2026-07-01
KAP412 Cape Air 13 2026-06-15
KAP33 Cape Air 13 2026-05-13
KAP314 - 12 2026-07-06
KAP10 - 10 2026-07-02
KAP1022 Cape Air 9 2026-05-08
KAP713 Cape Air 8 2026-06-22
KAP925 Cape Air 6 2026-05-25
KAP8380 Cape Air 6 2026-04-25
KAP811 Cape Air 6 2026-05-03
KAP27 Cape Air 6 2026-06-18
KAPT818 - 5 2026-06-12
KAP111 - 5 2026-07-07
KAP109 Cape Air 5 2026-04-20
KAP717 Cape Air 4 2026-05-03
KAP413 Cape Air 4 2026-05-20
KAP388 - 4 2026-07-03

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 KAP67 - Jul 14, 20:00 UTCJul 14, 20:50 UTC50m
2026-07-14 KAP70 - Jul 14, 18:35 UTCJul 14, 19:15 UTC40m
2026-07-14 KAP67 - Jul 14, 15:05 UTCJul 14, 15:55 UTC50m
2026-07-14 KAP60 - Jul 14, 13:30 UTCJul 14, 14:15 UTC45m
2026-07-14 KAP67 - Jul 14, 12:20 UTCJul 14, 12:30 UTC10m
2026-07-12 KAP501 - Jul 12, 12:20 UTCJul 12, 12:40 UTC20m
2026-07-10 KAP110 - Jul 10, 15:50 UTCJul 10, 16:35 UTC45m
2026-07-09 KAP5201 - Jul 9, 21:05 UTCJul 9, 21:50 UTC45m
2026-07-09 KAP328 - Jul 9, 19:30 UTCJul 9, 20:05 UTC35m
2026-07-09 KAP7001 FMH → BOS Jul 9, 18:05 UTCJul 9, 18:40 UTC35m
2026-07-09 KAPT9 - Jul 9, 12:30 UTCJul 9, 13:50 UTC1h 20m
2026-07-08 KAP519 - Jul 8, 19:10 UTCJul 8, 19:55 UTC45m
2026-07-07 KAP111 - Jul 7, 16:20 UTCJul 7, 16:35 UTC15m
2026-07-07 KAP111 - Jul 7, 14:55 UTCJul 7, 15:25 UTC30m
2026-07-07 KAP111 - Jul 7, 13:35 UTCJul 7, 14:10 UTC35m
2026-07-06 KAP111 - Jul 6, 23:05 UTCJul 6, 23:35 UTC30m
2026-07-06 KAP1003 - Jul 6, 19:55 UTCJul 6, 20:30 UTC35m
2026-07-06 KAP314 - Jul 6, 17:30 UTCJul 6, 18:00 UTC30m
2026-07-06 KAP210 - Jul 6, 12:00 UTCJul 6, 13:05 UTC1h 5m
2026-07-05 KAP213 - Jul 5, 21:40 UTCJul 5, 22:40 UTC1h 0m
2026-07-05 KAP214 - Jul 5, 19:55 UTCJul 5, 20:55 UTC1h 0m
2026-07-05 KAP215 BOS → ISP Jul 5, 14:15 UTCJul 5, 15:20 UTC1h 5m
2026-07-05 KAP3221 - Jul 5, 12:55 UTCJul 5, 13:25 UTC30m
2026-07-05 KAP527 - Jul 5, 11:15 UTCJul 5, 11:25 UTC10m
2026-07-04 KAP527 - Jul 4, 19:20 UTCJul 4, 19:35 UTC15m
2026-07-04 KAP527 - Jul 4, 17:15 UTCJul 4, 18:10 UTC55m
2026-07-04 KAP3242 MVY → BOS Jul 4, 16:05 UTCJul 4, 16:40 UTC35m
2026-07-04 KAP527 - Jul 4, 14:00 UTCJul 4, 14:30 UTC30m
2026-07-04 KAP3221 MVY → BOS Jul 4, 12:00 UTCJul 4, 13:10 UTC1h 10m
2026-07-04 KAP527 - Jul 4, 11:05 UTCJul 4, 11:20 UTC15m
2026-07-03 KAP527 - Jul 3, 19:20 UTCJul 3, 19:35 UTC15m
2026-07-03 KAP527 - Jul 3, 17:25 UTCJul 3, 18:15 UTC50m
2026-07-03 KAP3241 - Jul 3, 16:05 UTCJul 3, 16:35 UTC30m
2026-07-03 KAP527 - Jul 3, 14:00 UTCJul 3, 14:25 UTC25m
2026-07-03 KAP3221 - Jul 3, 12:45 UTCJul 3, 13:20 UTC35m
2026-07-03 KAP527 - Jul 3, 11:55 UTCJul 3, 12:05 UTC10m
2026-07-03 KAP527 - Jul 3, 11:05 UTCJul 3, 11:20 UTC15m
2026-07-03 KAP388 - Jul 3, 01:30 UTCJul 3, 02:30 UTC1h 0m
2026-07-02 KAP388 - Jul 2, 23:40 UTCJul 2, 23:55 UTC15m
2026-07-02 KAP388 - Jul 2, 22:25 UTCJul 2, 22:50 UTC25m
2026-07-02 KAP388 EWB → OWD Jul 2, 21:35 UTCJul 2, 21:50 UTC15m
2026-07-02 KAP10 - Jul 2, 19:10 UTCJul 2, 19:30 UTC20m
2026-07-02 KAP10 - Jul 2, 17:15 UTCJul 2, 18:25 UTC1h 10m
2026-07-02 KAP10 - Jul 2, 15:55 UTCJul 2, 16:20 UTC25m
2026-07-02 KAP10 - Jul 2, 14:15 UTCJul 2, 14:40 UTC25m
2026-07-01 KAP548 - Jul 1, 18:40 UTCJul 1, 19:45 UTC1h 5m
2026-07-01 KAP548 BHB → BOS Jul 1, 13:00 UTCJul 1, 14:20 UTC1h 20m
2026-07-01 KAP548 BHB → BOS Jul 1, 11:00 UTCJul 1, 11:55 UTC55m
2026-06-30 KAP548 BHB → BOS Jun 30, 20:55 UTCJun 30, 21:55 UTC1h 0m
2026-06-30 KAP548 BHB → BOS Jun 30, 18:35 UTCJun 30, 19:50 UTC1h 15m

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 N524CA page for operator, model, and routing details .

Mode-S A697FD frequently asked

What is Mode-S code A697FD?
A697FD is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N524CA.
Where is Mode-S A697FD registered?
Mode-S code A697FD 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 A697FD broadcasting right now?
No active broadcast right now. Last signal was 3d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A697FD, octal 51513775, decimal 10,917,885.
What flights does A697FD operate?
Mode-S A697FD has broadcast 20 distinct callsigns, including KAP876, KAP527, KAP747, KAP548, KAP412.