Apparatus

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sensors Mode-S transponder

A865CA

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N640FT · PIPER PA-28-140/150/160/180 · operated by FLORIDA INSTITUTE OF TECHNOLOGY

Hex
A865CA
Octal
52062712
Decimal
11,036,106
Country
US
Tail
N640FT
Type
P28A
No current signal · last broadcast 16h ago
Flights observed
184
Distinct callsigns
1
Country
US
Last broadcast
16h ago

Last known position

Most recent position reported by Mode-S A865CA.

Country allocation

The ICAO 24-bit address A865CA 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
TCF640 - 184 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 TCF640 - Jul 14, 16:25 UTCJul 14, 17:45 UTC1h 20m
2026-07-14 TCF640 - Jul 14, 13:55 UTCJul 14, 14:50 UTC55m
2026-07-14 TCF640 - Jul 14, 11:40 UTCJul 14, 12:45 UTC1h 5m
2026-07-13 TCF640 - Jul 13, 15:55 UTCJul 13, 17:05 UTC1h 10m
2026-07-13 TCF640 - Jul 13, 12:00 UTCJul 13, 13:20 UTC1h 20m
2026-07-11 TCF640 - Jul 11, 14:20 UTCJul 11, 15:25 UTC1h 5m
2026-07-10 TCF640 - Jul 10, 14:25 UTCJul 10, 17:20 UTC2h 55m
2026-07-09 TCF640 - Jul 9, 18:50 UTCJul 9, 19:55 UTC1h 5m
2026-07-09 TCF640 SFB → MLB Jul 9, 14:40 UTCJul 9, 15:30 UTC50m
2026-07-09 TCF640 - Jul 9, 11:25 UTCJul 9, 13:35 UTC2h 10m
2026-07-06 TCF640 - Jul 6, 14:00 UTCJul 6, 14:40 UTC40m
2026-07-06 TCF640 - Jul 6, 11:10 UTCJul 6, 11:55 UTC45m
2026-07-04 TCF640 - Jul 4, 13:20 UTCJul 4, 15:00 UTC1h 40m
2026-07-03 TCF640 MLB → MLB Jul 3, 13:20 UTCJul 3, 14:35 UTC1h 15m
2026-07-02 TCF640 - Jul 2, 17:10 UTCJul 2, 18:30 UTC1h 20m
2026-07-02 TCF640 MLB → MLB Jul 2, 00:40 UTCJul 2, 01:50 UTC1h 10m
2026-07-01 TCF640 - Jul 1, 14:50 UTCJul 1, 15:45 UTC55m
2026-07-01 TCF640 - Jul 1, 10:45 UTCJul 1, 11:55 UTC1h 10m
2026-06-30 TCF640 - Jun 30, 15:55 UTCJun 30, 16:25 UTC30m
2026-06-30 TCF640 MLB → MLB Jun 30, 13:40 UTCJun 30, 14:55 UTC1h 15m
2026-06-30 TCF640 MLB → MLB Jun 30, 11:00 UTCJun 30, 12:25 UTC1h 25m
2026-06-29 TCF640 - Jun 29, 17:40 UTCJun 29, 18:19 UTC40m
2026-06-29 TCF640 - Jun 29, 14:54 UTCJun 29, 15:30 UTC35m
2026-06-29 TCF640 - Jun 29, 13:59 UTCJun 29, 14:19 UTC20m
2026-06-29 TCF640 - Jun 29, 10:50 UTCJun 29, 12:29 UTC1h 40m
2026-06-28 TCF640 - Jun 28, 13:25 UTCJun 28, 14:19 UTC55m
2026-06-27 TCF640 - Jun 27, 15:34 UTCJun 27, 17:39 UTC2h 5m
2026-06-27 TCF640 - Jun 27, 13:35 UTCJun 27, 14:45 UTC1h 10m
2026-06-27 TCF640 - Jun 27, 11:44 UTCJun 27, 12:55 UTC1h 10m
2026-06-26 TCF640 - Jun 26, 13:15 UTCJun 26, 14:35 UTC1h 20m
2026-06-26 TCF640 - Jun 26, 11:05 UTCJun 26, 12:14 UTC1h 10m
2026-06-26 TCF640 - Jun 26, 00:39 UTCJun 26, 01:54 UTC1h 15m
2026-06-25 TCF640 - Jun 25, 18:15 UTCJun 25, 19:29 UTC1h 15m
2026-06-25 TCF640 - Jun 25, 15:44 UTCJun 25, 16:55 UTC1h 10m
2026-06-25 TCF640 - Jun 25, 12:44 UTCJun 25, 13:55 UTC1h 10m
2026-06-24 TCF640 - Jun 24, 11:45 UTCJun 24, 12:20 UTC35m
2026-06-23 TCF640 - Jun 23, 13:34 UTCJun 23, 14:39 UTC1h 5m
2026-06-23 TCF640 - Jun 23, 10:49 UTCJun 23, 12:09 UTC1h 20m
2026-06-22 TCF640 MLB → MLB Jun 22, 19:05 UTCJun 22, 19:44 UTC40m
2026-06-22 TCF640 - Jun 22, 13:35 UTCJun 22, 15:24 UTC1h 50m
2026-06-20 TCF640 - Jun 20, 14:09 UTCJun 20, 15:24 UTC1h 15m
2026-06-20 TCF640 - Jun 20, 11:49 UTCJun 20, 12:39 UTC50m
2026-06-19 TCF640 - Jun 19, 15:54 UTCJun 19, 17:04 UTC1h 10m
2026-06-19 TCF640 MLB → MLB Jun 19, 13:14 UTCJun 19, 14:19 UTC1h 5m
2026-06-19 TCF640 - Jun 19, 00:55 UTCJun 19, 01:59 UTC1h 5m
2026-06-17 TCF640 - Jun 17, 01:30 UTCJun 17, 03:00 UTC1h 30m
2026-06-16 TCF640 - Jun 16, 17:00 UTCJun 16, 17:40 UTC40m
2026-06-16 TCF640 - Jun 16, 15:05 UTCJun 16, 15:55 UTC50m
2026-06-16 TCF640 - Jun 16, 11:15 UTCJun 16, 12:39 UTC1h 25m
2026-06-14 TCF640 - Jun 14, 16:05 UTCJun 14, 17:30 UTC1h 25m

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 N640FT page for operator, model, and routing details .

Mode-S A865CA frequently asked

What is Mode-S code A865CA?
A865CA is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N640FT.
Where is Mode-S A865CA registered?
Mode-S code A865CA 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 A865CA broadcasting right now?
No active broadcast right now. Last signal was 16h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A865CA, octal 52062712, decimal 11,036,106.
What flights does A865CA operate?
Mode-S A865CA has broadcast 1 distinct callsign, including TCF640.