Apparatus

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sensors Mode-S transponder

A80CA9

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N618CA · CESSNA 402 Businessliner · operated by HYANNIS AIR SERVICE INC

Hex
A80CA9
Octal
52006251
Decimal
11,013,289
Country
US
Tail
N618CA
Type
C402
No current signal · last broadcast 11h ago
Flights observed
206
Distinct callsigns
20
Country
US
Last broadcast
11h ago

Last known position

Most recent position reported by Mode-S A80CA9.

Country allocation

The ICAO 24-bit address A80CA9 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
KAP65 - 31 2026-07-01
KAP131 - 18 2026-07-17
KAP333 - 17 2026-06-30
KAP189 - 14 2026-07-03
KAP278 Cape Air 12 2026-05-22
KAP98 Cape Air 11 2026-05-08
KAP876 Cape Air 11 2026-05-06
KAP350 Cape Air 11 2026-05-21
KAP202 Cape Air 11 2026-06-11
KAP91 Cape Air 8 2026-05-28
KAP2296 - 8 2026-07-05
KAP635 Cape Air 6 2026-05-13
KAP107 Cape Air 6 2026-05-16
KAP64 Cape Air 5 2026-05-25
KAP47 - 5 2026-07-03
KAP335 - 5 2026-07-10
KAP157 Cape Air 5 2026-06-04
KAP1271 Cape Air 5 2026-04-25
KAP63 - 3 2026-07-02
KAP211 - 3 2026-07-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 KAP131 - Jul 17, 22:29 UTCJul 17, 22:49 UTC20m
2026-07-17 KAP131 - Jul 17, 21:34 UTCJul 17, 21:44 UTC10m
2026-07-17 KAP131 - Jul 17, 19:40 UTCJul 17, 20:40 UTC1h 0m
2026-07-12 KAP211 - Jul 12, 14:05 UTCJul 12, 14:15 UTC10m
2026-07-12 KAP211 - Jul 12, 13:15 UTCJul 12, 13:25 UTC10m
2026-07-10 KAP335 - Jul 10, 12:55 UTCJul 10, 13:15 UTC20m
2026-07-09 - - Jul 9, 19:50 UTCJul 9, 20:00 UTC10m
2026-07-09 KAP2 - Jul 9, 18:20 UTCJul 9, 18:35 UTC15m
2026-07-09 KAP2 - Jul 9, 14:15 UTCJul 9, 14:25 UTC10m
2026-07-05 KAP2296 - Jul 5, 19:10 UTCJul 5, 19:30 UTC20m
2026-07-05 KAP2296 - Jul 5, 18:05 UTCJul 5, 18:20 UTC15m
2026-07-05 KAP2296 - Jul 5, 16:45 UTCJul 5, 16:55 UTC10m
2026-07-05 KAP2296 - Jul 5, 15:50 UTCJul 5, 16:10 UTC20m
2026-07-04 KAP2296 - Jul 4, 17:40 UTCJul 4, 17:50 UTC10m
2026-07-04 KAP505 - Jul 4, 13:30 UTCJul 4, 13:55 UTC25m
2026-07-04 KAP505 - Jul 4, 11:50 UTCJul 4, 12:10 UTC20m
2026-07-03 KAP189 - Jul 3, 23:05 UTCJul 3, 23:20 UTC15m
2026-07-03 KAP189 - Jul 3, 22:00 UTCJul 3, 22:15 UTC15m
2026-07-03 KAP47 - Jul 3, 20:30 UTCJul 3, 20:50 UTC20m
2026-07-03 KAP47 - Jul 3, 18:15 UTCJul 3, 18:30 UTC15m
2026-07-03 KAP47 - Jul 3, 17:00 UTCJul 3, 17:10 UTC10m
2026-07-03 KAP47 - Jul 3, 12:10 UTCJul 3, 12:30 UTC20m
2026-07-02 KAP47 - Jul 2, 22:00 UTCJul 2, 22:10 UTC10m
2026-07-02 KAP63 - Jul 2, 16:25 UTCJul 2, 16:35 UTC10m
2026-07-02 KAP63 - Jul 2, 15:10 UTCJul 2, 15:30 UTC20m
2026-07-02 KAP63 - Jul 2, 13:10 UTCJul 2, 13:20 UTC10m
2026-07-01 KAP65 - Jul 1, 15:35 UTCJul 1, 15:45 UTC10m
2026-07-01 KAP65 - Jul 1, 13:30 UTCJul 1, 13:40 UTC10m
2026-07-01 KAP65 - Jul 1, 11:25 UTCJul 1, 11:45 UTC20m
2026-06-30 KAPT9 - Jun 30, 16:00 UTCJun 30, 16:10 UTC10m
2026-06-30 KAPT9 - Jun 30, 14:45 UTCJun 30, 15:30 UTC45m
2026-06-30 KAP333 - Jun 30, 13:45 UTCJun 30, 14:00 UTC15m
2026-06-30 KAP333 - Jun 30, 11:35 UTCJun 30, 11:50 UTC15m
2026-06-29 KAP131 - Jun 29, 22:05 UTCJun 29, 22:24 UTC20m
2026-06-29 KAP131 - Jun 29, 20:49 UTCJun 29, 21:05 UTC15m
2026-06-29 KAP131 - Jun 29, 19:00 UTCJun 29, 19:09 UTC10m
2026-06-29 KAP131 - Jun 29, 15:24 UTCJun 29, 15:39 UTC15m
2026-06-28 KAP131 - Jun 28, 23:25 UTCJun 28, 23:39 UTC15m
2026-06-28 KAP131 - Jun 28, 22:15 UTCJun 28, 22:34 UTC20m
2026-06-28 KAP131 - Jun 28, 20:54 UTCJun 28, 21:10 UTC15m
2026-06-28 KAP131 - Jun 28, 19:29 UTCJun 28, 19:49 UTC20m
2026-06-28 KAP131 - Jun 28, 18:14 UTCJun 28, 18:25 UTC10m
2026-06-28 KAP131 - Jun 28, 15:14 UTCJun 28, 15:34 UTC20m
2026-06-27 KAP131 - Jun 27, 23:34 UTCJun 27, 23:55 UTC20m
2026-06-27 KAP131 - Jun 27, 22:25 UTCJun 27, 22:40 UTC15m
2026-06-27 KAP131 - Jun 27, 21:15 UTCJun 27, 21:29 UTC15m
2026-06-27 KAP131 - Jun 27, 19:09 UTCJun 27, 19:24 UTC15m
2026-06-27 KAP131 - Jun 27, 18:04 UTCJun 27, 18:20 UTC15m
2026-06-26 KAP65 - Jun 26, 21:45 UTCJun 26, 22:05 UTC20m
2026-06-26 KAP65 - Jun 26, 19:39 UTCJun 26, 19:55 UTC15m

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 N618CA page for operator, model, and routing details .

Mode-S A80CA9 frequently asked

What is Mode-S code A80CA9?
A80CA9 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N618CA.
Where is Mode-S A80CA9 registered?
Mode-S code A80CA9 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 A80CA9 broadcasting right now?
No active broadcast right now. Last signal was 11h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A80CA9, octal 52006251, decimal 11,013,289.
What flights does A80CA9 operate?
Mode-S A80CA9 has broadcast 20 distinct callsigns, including KAP65, KAP131, KAP333, KAP189, KAP278.