Apparatus

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sensors Mode-S transponder

A17EA8

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N196CA · CESSNA 402 Businessliner · operated by HYANNIS AIR SERVICE INC DBA, CAPE AIR

Hex
A17EA8
Octal
50277250
Decimal
10,583,720
Country
US
Tail
N196CA
Type
C402
No current signal · last broadcast 1d ago
Flights observed
313
Distinct callsigns
20
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S A17EA8.

Country allocation

The ICAO 24-bit address A17EA8 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
KAP747 - 56 2026-07-06
KAP65 Cape Air 30 2026-05-23
KAP27 Cape Air 27 2026-07-08
KAP107 Cape Air 16 2026-04-23
KAP811 - 14 2026-07-05
KAP2 Cape Air 12 2026-04-26
KAP222 Cape Air 11 2026-06-01
KAP98 Cape Air 9 2026-04-25
KAP5150 Cape Air 9 2026-05-26
KAP42 - 7 2026-06-15
KAP519 - 6 2026-07-07
KAP1271 - 6 2026-06-30
KAP916 - 5 2026-07-07
KAP6 Cape Air 5 2026-05-25
KAP161 Cape Air 5 2026-05-21
KAP87 - 4 2026-06-26
KAP6789 - 4 2026-07-16
KAP64 Cape Air 4 2026-04-23
KAP592 Cape Air 4 2026-05-21
KAP54 Cape Air 4 2026-06-07

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-16 KAP6789 - Jul 16, 21:55 UTCJul 16, 22:10 UTC15m
2026-07-16 KAP6789 - Jul 16, 20:25 UTCJul 16, 20:45 UTC20m
2026-07-16 KAP6789 BOS → PVC Jul 16, 18:50 UTCJul 16, 19:10 UTC20m
2026-07-16 KAP6789 - Jul 16, 17:10 UTCJul 16, 18:05 UTC55m
2026-07-14 KAP418 - Jul 14, 16:35 UTCJul 14, 17:00 UTC25m
2026-07-14 KAP902 - Jul 14, 00:25 UTCJul 14, 01:15 UTC50m
2026-07-13 KAP902 - Jul 13, 23:05 UTCJul 13, 23:45 UTC40m
2026-07-13 KAP1876 LEB → BOS Jul 13, 19:25 UTCJul 13, 20:10 UTC45m
2026-07-13 KAP902 - Jul 13, 18:00 UTCJul 13, 18:40 UTC40m
2026-07-13 KAP10 - Jul 13, 12:45 UTCJul 13, 13:15 UTC30m
2026-07-13 KAP10 - Jul 13, 11:05 UTCJul 13, 11:55 UTC50m
2026-07-12 KAP3291 BOS → EWB Jul 12, 23:45 UTCJul 13, 00:40 UTC55m
2026-07-12 KAP3061 - Jul 12, 22:15 UTCJul 12, 22:50 UTC35m
2026-07-12 KAP3171 - Jul 12, 20:15 UTCJul 12, 20:55 UTC40m
2026-07-12 KAP3081 - Jul 12, 19:10 UTCJul 12, 19:40 UTC30m
2026-07-12 KAP1022 - Jul 12, 15:10 UTCJul 12, 15:20 UTC10m
2026-07-10 KAP3291 - Jul 10, 23:50 UTCJul 11, 00:55 UTC1h 5m
2026-07-10 KAP3061 - Jul 10, 22:20 UTCJul 10, 22:55 UTC35m
2026-07-10 KAP3171 - Jul 10, 20:15 UTCJul 10, 20:45 UTC30m
2026-07-10 KAP3081 - Jul 10, 19:00 UTCJul 10, 19:35 UTC35m
2026-07-10 KAP3252 - Jul 10, 17:45 UTCJul 10, 18:10 UTC25m
2026-07-10 KAP3242 MVY → BOS Jul 10, 16:20 UTCJul 10, 16:55 UTC35m
2026-07-10 KAP1022 - Jul 10, 15:30 UTCJul 10, 15:40 UTC10m
2026-07-09 KAP3291 BOS → EWB Jul 9, 23:55 UTCJul 10, 01:00 UTC1h 5m
2026-07-09 KAP3061 - Jul 9, 22:20 UTCJul 9, 23:05 UTC45m
2026-07-09 KAP3171 - Jul 9, 20:30 UTCJul 9, 20:55 UTC25m
2026-07-09 KAP3081 MVY → BOS Jul 9, 19:05 UTCJul 9, 19:45 UTC40m
2026-07-09 KAP3252 - Jul 9, 17:30 UTCJul 9, 17:55 UTC25m
2026-07-09 KAP6114 - Jul 9, 15:40 UTCJul 9, 16:05 UTC25m
2026-07-08 KAP527 - Jul 8, 19:15 UTCJul 8, 19:35 UTC20m
2026-07-08 KAP527 - Jul 8, 17:20 UTCJul 8, 18:20 UTC1h 0m
2026-07-08 KAP3241 - Jul 8, 16:05 UTCJul 8, 16:35 UTC30m
2026-07-08 KAP527 - Jul 8, 14:20 UTCJul 8, 14:45 UTC25m
2026-07-08 KAP3221 - Jul 8, 12:30 UTCJul 8, 13:25 UTC55m
2026-07-08 KAP527 - Jul 8, 11:20 UTCJul 8, 11:40 UTC20m
2026-07-08 KAP27 MVY → BOS Jul 8, 10:20 UTCJul 8, 10:35 UTC15m
2026-07-07 KAP519 - Jul 7, 22:05 UTCJul 7, 22:25 UTC20m
2026-07-07 KAP916 - Jul 7, 15:35 UTCJul 7, 15:55 UTC20m
2026-07-06 KAP747 - Jul 6, 22:00 UTCJul 6, 22:45 UTC45m
2026-07-06 KAP747 - Jul 6, 20:50 UTCJul 6, 21:20 UTC30m
2026-07-06 KAP747 - Jul 6, 19:25 UTCJul 6, 19:50 UTC25m
2026-07-06 KAP747 - Jul 6, 18:15 UTCJul 6, 18:35 UTC20m
2026-07-05 KAP811 - Jul 5, 19:20 UTCJul 5, 19:40 UTC20m
2026-07-05 KAP811 - Jul 5, 18:25 UTCJul 5, 18:55 UTC30m
2026-07-05 KAP811 - Jul 5, 16:45 UTCJul 5, 17:20 UTC35m
2026-07-05 KAP811 - Jul 5, 15:35 UTCJul 5, 16:10 UTC35m
2026-07-05 KAP811 - Jul 5, 13:45 UTCJul 5, 14:15 UTC30m
2026-07-05 KAP811 - Jul 5, 12:30 UTCJul 5, 13:00 UTC30m
2026-07-05 KAP811 - Jul 5, 11:30 UTCJul 5, 11:40 UTC10m
2026-07-04 KAP350 - Jul 4, 20:15 UTCJul 4, 20:35 UTC20m

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 N196CA page for operator, model, and routing details .

Mode-S A17EA8 frequently asked

What is Mode-S code A17EA8?
A17EA8 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N196CA.
Where is Mode-S A17EA8 registered?
Mode-S code A17EA8 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 A17EA8 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A17EA8, octal 50277250, decimal 10,583,720.
What flights does A17EA8 operate?
Mode-S A17EA8 has broadcast 20 distinct callsigns, including KAP747, KAP65, KAP27, KAP107, KAP811.