Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A963F1

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N704FK · CESSNA 150 · operated by STRUPPA ALESSANDRO

Hex
A963F1
Octal
52261761
Decimal
11,101,169
Country
US
Tail
N704FK
Type
C150
No current signal · last broadcast 2h ago
Flights observed
87
Distinct callsigns
1
Country
US
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S A963F1.

Country allocation

The ICAO 24-bit address A963F1 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
N704FK - 87 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 N704FK - Jul 14, 14:55 UTCJul 14, 15:20 UTC25m
2026-07-12 N704FK - Jul 12, 23:05 UTCJul 12, 23:45 UTC40m
2026-07-11 N704FK VNC → VNC Jul 11, 16:45 UTCJul 11, 17:35 UTC50m
2026-07-09 N704FK VNC → VNC Jul 9, 20:30 UTCJul 9, 21:30 UTC1h 0m
2026-07-09 N704FK VNC → VNC Jul 9, 11:50 UTCJul 9, 13:05 UTC1h 15m
2026-07-09 N704FK VNC → VNC Jul 9, 02:40 UTCJul 9, 03:25 UTC45m
2026-07-09 N704FK VNC → VNC Jul 9, 00:10 UTCJul 9, 00:50 UTC40m
2026-07-08 N704FK - Jul 8, 21:10 UTCJul 8, 22:20 UTC1h 10m
2026-07-05 N704FK - Jul 5, 22:45 UTCJul 5, 23:40 UTC55m
2026-07-05 N704FK - Jul 5, 20:50 UTCJul 5, 21:30 UTC40m
2026-07-03 N704FK - Jul 3, 14:55 UTCJul 3, 15:10 UTC15m
2026-07-02 N704FK - Jul 2, 13:15 UTCJul 2, 14:25 UTC1h 10m
2026-06-30 N704FK VNC → VNC Jun 30, 11:55 UTCJun 30, 12:45 UTC50m
2026-06-29 N704FK - Jun 29, 21:44 UTCJun 29, 22:39 UTC55m
2026-06-29 N704FK VNC → VNC Jun 29, 13:14 UTCJun 29, 13:59 UTC45m
2026-06-27 N704FK - Jun 27, 15:19 UTCJun 27, 15:39 UTC20m
2026-06-27 N704FK VNC → VNC Jun 27, 11:59 UTCJun 27, 13:30 UTC1h 30m
2026-06-26 N704FK - Jun 26, 21:15 UTCJun 26, 22:10 UTC55m
2026-06-26 N704FK - Jun 26, 14:50 UTCJun 26, 15:39 UTC50m
2026-06-26 N704FK - Jun 26, 11:45 UTCJun 26, 12:34 UTC50m
2026-06-25 N704FK - Jun 25, 22:54 UTCJun 25, 23:19 UTC25m
2026-06-25 N704FK VNC → VNC Jun 25, 11:25 UTCJun 25, 12:40 UTC1h 15m
2026-06-24 N704FK - Jun 24, 11:59 UTCJun 24, 12:44 UTC45m
2026-06-23 N704FK VNC → VNC Jun 23, 23:50 UTCJun 24, 00:55 UTC1h 5m
2026-06-23 N704FK - Jun 23, 21:05 UTCJun 23, 21:54 UTC50m
2026-06-22 N704FK - Jun 22, 12:05 UTCJun 22, 13:05 UTC1h 0m
2026-06-21 N704FK - Jun 21, 18:35 UTCJun 21, 19:00 UTC25m
2026-06-21 N704FK - Jun 21, 11:59 UTCJun 21, 13:34 UTC1h 35m
2026-06-20 N704FK - Jun 20, 15:14 UTCJun 20, 16:19 UTC1h 5m
2026-06-20 N704FK VNC → VNC Jun 20, 13:14 UTCJun 20, 13:49 UTC35m
2026-06-19 N704FK - Jun 19, 10:35 UTCJun 19, 11:20 UTC45m
2026-06-15 N704FK - Jun 15, 11:54 UTCJun 15, 12:49 UTC55m
2026-06-14 N704FK - Jun 14, 12:05 UTCJun 14, 13:20 UTC1h 15m
2026-06-13 N704FK VNC → VNC Jun 13, 15:05 UTCJun 13, 16:15 UTC1h 10m
2026-06-13 N704FK - Jun 13, 12:15 UTCJun 13, 13:30 UTC1h 15m
2026-06-12 N704FK VNC → VNC Jun 12, 22:00 UTCJun 12, 22:50 UTC50m
2026-06-12 N704FK - Jun 12, 14:30 UTCJun 12, 15:45 UTC1h 15m
2026-06-12 N704FK - Jun 12, 11:45 UTCJun 12, 13:05 UTC1h 20m
2026-06-11 N704FK - Jun 11, 17:35 UTCJun 11, 18:20 UTC45m
2026-06-11 N704FK - Jun 11, 15:35 UTCJun 11, 16:20 UTC45m
2026-06-11 N704FK - Jun 11, 12:50 UTCJun 11, 13:25 UTC35m
2026-06-10 N704FK VNC → VNC Jun 10, 01:35 UTCJun 10, 02:30 UTC55m
2026-06-09 N704FK - Jun 9, 23:35 UTCJun 10, 00:25 UTC50m
2026-06-09 N704FK - Jun 9, 21:30 UTCJun 9, 22:15 UTC45m
2026-06-08 N704FK - Jun 8, 13:40 UTCJun 8, 14:20 UTC40m
2026-06-07 N704FK - Jun 7, 11:50 UTCJun 7, 13:25 UTC1h 35m
2026-06-06 N704FK - Jun 6, 14:04 UTCJun 6, 14:54 UTC50m
2026-06-05 N704FK - Jun 5, 21:35 UTCJun 5, 22:10 UTC35m
2026-06-05 N704FK - Jun 5, 14:45 UTCJun 5, 15:45 UTC1h 0m
2026-06-05 N704FK VNC → VNC Jun 5, 11:35 UTCJun 5, 13:15 UTC1h 40m

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 N704FK page for operator, model, and routing details .

Mode-S A963F1 frequently asked

What is Mode-S code A963F1?
A963F1 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N704FK.
Where is Mode-S A963F1 registered?
Mode-S code A963F1 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 A963F1 broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A963F1, octal 52261761, decimal 11,101,169.
What flights does A963F1 operate?
Mode-S A963F1 has broadcast 1 distinct callsign, including N704FK.