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sensors Mode-S transponder

A2CA86

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N27917 · PIPER PA-31-300/310/325/350/425 · operated by WARBELOWS AIR VENTURES INC

Hex
A2CA86
Octal
50545206
Decimal
10,668,678
Country
US
Tail
N27917
Type
PA31
No current signal · last broadcast 21h ago
Flights observed
100
Distinct callsigns
1
Country
US
Last broadcast
21h ago

Last known position

Most recent position reported by Mode-S A2CA86.

Country allocation

The ICAO 24-bit address A2CA86 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 1 distinct

Callsign Airline Flights Last seen
N27917 - 100 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 N27917 - Jul 14, 22:05 UTCJul 14, 22:40 UTC35m
2026-07-12 N27917 - Jul 12, 17:10 UTCJul 12, 17:30 UTC20m
2026-07-11 N27917 - Jul 11, 23:50 UTCJul 12, 00:01 UTC10m
2026-07-11 N27917 - Jul 11, 22:45 UTCJul 11, 23:05 UTC20m
2026-07-11 N27917 - Jul 11, 07:35 UTCJul 11, 08:20 UTC45m
2026-07-11 N27917 - Jul 11, 02:40 UTCJul 11, 03:10 UTC30m
2026-07-09 N27917 - Jul 9, 07:35 UTCJul 9, 08:05 UTC30m
2026-07-09 N27917 - Jul 9, 02:35 UTCJul 9, 03:10 UTC35m
2026-07-08 N27917 - Jul 8, 04:25 UTCJul 8, 05:40 UTC1h 15m
2026-07-08 N27917 - Jul 8, 01:40 UTCJul 8, 02:20 UTC40m
2026-07-07 N27917 - Jul 7, 20:35 UTCJul 7, 21:05 UTC30m
2026-07-07 N27917 - Jul 7, 07:35 UTCJul 7, 08:20 UTC45m
2026-07-07 N27917 - Jul 7, 02:30 UTCJul 7, 03:10 UTC40m
2026-07-06 N27917 - Jul 6, 04:25 UTCJul 6, 05:50 UTC1h 25m
2026-07-05 N27917 - Jul 5, 17:00 UTCJul 5, 18:10 UTC1h 10m
2026-07-04 N27917 - Jul 4, 16:50 UTCJul 4, 18:05 UTC1h 15m
2026-07-04 N27917 - Jul 4, 04:15 UTCJul 4, 05:40 UTC1h 25m
2026-07-04 N27917 - Jul 4, 01:30 UTCJul 4, 02:15 UTC45m
2026-07-03 N27917 - Jul 3, 20:30 UTCJul 3, 21:05 UTC35m
2026-07-03 N27917 - Jul 3, 16:50 UTCJul 3, 18:05 UTC1h 15m
2026-07-03 N27917 - Jul 3, 04:15 UTCJul 3, 05:35 UTC1h 20m
2026-07-03 N27917 - Jul 3, 01:45 UTCJul 3, 02:20 UTC35m
2026-07-02 N27917 - Jul 2, 20:35 UTCJul 2, 21:10 UTC35m
2026-07-02 N27917 - Jul 2, 07:35 UTCJul 2, 08:15 UTC40m
2026-07-02 N27917 - Jul 2, 02:35 UTCJul 2, 03:10 UTC35m
2026-07-01 N27917 - Jul 1, 22:55 UTCJul 2, 00:15 UTC1h 20m
2026-07-01 N27917 - Jul 1, 07:35 UTCJul 1, 08:20 UTC45m
2026-07-01 N27917 - Jul 1, 02:35 UTCJul 1, 03:10 UTC35m
2026-06-30 N27917 - Jun 30, 04:30 UTCJun 30, 05:55 UTC1h 25m
2026-06-29 N27917 - Jun 29, 04:09 UTCJun 29, 05:30 UTC1h 20m
2026-06-28 N27917 - Jun 28, 22:45 UTCJun 29, 00:05 UTC1h 20m
2026-06-28 N27917 - Jun 28, 01:44 UTCJun 28, 02:20 UTC35m
2026-06-27 N27917 - Jun 27, 20:29 UTCJun 27, 21:04 UTC35m
2026-06-27 N27917 - Jun 27, 04:15 UTCJun 27, 05:39 UTC1h 25m
2026-06-26 N27917 - Jun 26, 22:49 UTCJun 27, 00:10 UTC1h 20m
2026-06-26 N27917 - Jun 26, 16:54 UTCJun 26, 18:20 UTC1h 25m
2026-06-26 N27917 - Jun 26, 04:20 UTCJun 26, 05:39 UTC1h 20m
2026-06-24 N27917 - Jun 24, 22:49 UTCJun 25, 00:09 UTC1h 20m
2026-06-24 N27917 - Jun 24, 16:54 UTCJun 24, 18:09 UTC1h 15m
2026-06-22 N27917 - Jun 22, 04:34 UTCJun 22, 05:54 UTC1h 20m
2026-06-21 N27917 - Jun 21, 23:00 UTCJun 22, 00:14 UTC1h 15m
2026-06-21 N27917 - Jun 21, 04:30 UTCJun 21, 05:59 UTC1h 30m
2026-06-20 N27917 - Jun 20, 22:59 UTCJun 21, 00:29 UTC1h 30m
2026-06-20 N27917 - Jun 20, 16:49 UTCJun 20, 18:10 UTC1h 20m
2026-06-19 N27917 - Jun 19, 04:14 UTCJun 19, 05:40 UTC1h 25m
2026-06-17 N27917 - Jun 17, 22:55 UTCJun 18, 00:25 UTC1h 30m
2026-06-17 N27917 - Jun 17, 20:40 UTCJun 17, 21:05 UTC25m
2026-06-14 N27917 - Jun 14, 19:05 UTCJun 14, 19:30 UTC25m
2026-06-14 N27917 - Jun 14, 04:15 UTCJun 14, 05:30 UTC1h 15m
2026-06-14 N27917 - Jun 14, 00:00 UTCJun 14, 00:10 UTC10m

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 N27917 page for operator, model, and routing details .

Mode-S A2CA86 frequently asked

What is Mode-S code A2CA86?
A2CA86 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N27917.
Where is Mode-S A2CA86 registered?
Mode-S code A2CA86 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 A2CA86 broadcasting right now?
No active broadcast right now. Last signal was 21h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A2CA86, octal 50545206, decimal 10,668,678.
What flights does A2CA86 operate?
Mode-S A2CA86 has broadcast 1 distinct callsign, including N27917.