Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

AB3169

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N820FS · PIPER PA-31-300/310/325/350/425 · operated by AIR ARCTIC INC

Hex
AB3169
Octal
52630551
Decimal
11,219,305
Country
US
Tail
N820FS
Type
PA31
No current signal · last broadcast Jul 23, 20:55 UTC
Flights observed
142
Distinct callsigns
1
Country
US
Last broadcast
Jul 23, 20:55 UTC

Last known position

Most recent position reported by Mode-S AB3169.

Country allocation

The ICAO 24-bit address AB3169 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
N820FS - 142 2026-07-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-23 N820FS - Jul 23, 20:35 UTCJul 23, 20:55 UTC20m
2026-07-23 N820FS - Jul 23, 15:05 UTCJul 23, 15:25 UTC20m
2026-07-23 N820FS - Jul 23, 07:35 UTCJul 23, 07:55 UTC20m
2026-07-23 N820FS - Jul 23, 02:55 UTCJul 23, 03:10 UTC15m
2026-07-23 N820FS - Jul 23, 00:15 UTCJul 23, 00:35 UTC20m
2026-07-22 N820FS - Jul 22, 22:45 UTCJul 22, 23:10 UTC25m
2026-07-22 N820FS - Jul 22, 20:05 UTCJul 22, 20:20 UTC15m
2026-07-22 N820FS - Jul 22, 15:00 UTCJul 22, 15:15 UTC15m
2026-07-22 N820FS - Jul 22, 02:55 UTCJul 22, 03:10 UTC15m
2026-07-21 N820FS - Jul 21, 07:50 UTCJul 21, 08:00 UTC10m
2026-07-21 N820FS - Jul 21, 02:55 UTCJul 21, 03:10 UTC15m
2026-07-19 N820FS - Jul 19, 01:40 UTCJul 19, 01:55 UTC15m
2026-07-18 N820FS - Jul 18, 20:55 UTCJul 18, 21:10 UTC15m
2026-07-17 N820FS - Jul 17, 19:49 UTCJul 17, 20:04 UTC15m
2026-07-17 N820FS - Jul 17, 15:00 UTCJul 17, 15:20 UTC20m
2026-07-16 N820FS - Jul 16, 19:45 UTCJul 16, 20:09 UTC25m
2026-07-16 N820FS - Jul 16, 15:00 UTCJul 16, 15:30 UTC30m
2026-07-13 N820FS - Jul 13, 19:40 UTCJul 13, 19:55 UTC15m
2026-07-13 N820FS - Jul 13, 14:55 UTCJul 13, 15:15 UTC20m
2026-07-10 N820FS - Jul 10, 21:45 UTCJul 10, 22:05 UTC20m
2026-07-10 N820FS - Jul 10, 16:35 UTCJul 10, 17:00 UTC25m
2026-07-10 N820FS - Jul 10, 07:40 UTCJul 10, 07:55 UTC15m
2026-07-10 N820FS - Jul 10, 02:55 UTCJul 10, 03:20 UTC25m
2026-07-09 N820FS - Jul 9, 01:35 UTCJul 9, 01:50 UTC15m
2026-07-08 N820FS - Jul 8, 20:55 UTCJul 8, 21:10 UTC15m
2026-07-08 N820FS - Jul 8, 19:45 UTCJul 8, 20:05 UTC20m
2026-07-08 N820FS - Jul 8, 14:55 UTCJul 8, 15:05 UTC10m
2026-07-05 N820FS - Jul 5, 01:40 UTCJul 5, 01:55 UTC15m
2026-07-04 N820FS - Jul 4, 21:00 UTCJul 4, 21:10 UTC10m
2026-07-03 N820FS - Jul 3, 20:15 UTCJul 3, 21:50 UTC1h 35m
2026-07-01 N820FS FAI → FAI Jul 1, 01:50 UTCJul 1, 03:05 UTC1h 15m
2026-06-30 N820FS FAI → FAI Jun 30, 22:10 UTCJun 30, 23:25 UTC1h 15m
2026-06-30 N820FS - Jun 30, 19:25 UTCJun 30, 19:45 UTC20m
2026-06-30 N820FS - Jun 30, 14:55 UTCJun 30, 15:10 UTC15m
2026-06-29 N820FS - Jun 29, 06:19 UTCJun 29, 06:40 UTC20m
2026-06-29 N820FS - Jun 29, 03:10 UTCJun 29, 03:34 UTC25m
2026-06-27 N820FS - Jun 27, 07:59 UTCJun 27, 08:20 UTC20m
2026-06-27 N820FS - Jun 27, 03:04 UTCJun 27, 03:30 UTC25m
2026-06-23 N820FS - Jun 23, 01:40 UTCJun 23, 01:59 UTC20m
2026-06-22 N820FS - Jun 22, 20:55 UTCJun 22, 21:05 UTC10m
2026-06-19 N820FS - Jun 19, 23:44 UTCJun 19, 23:59 UTC15m
2026-06-19 N820FS - Jun 19, 20:55 UTCJun 19, 21:14 UTC20m
2026-06-19 N820FS - Jun 19, 07:39 UTCJun 19, 07:49 UTC10m
2026-06-19 N820FS - Jun 19, 02:45 UTCJun 19, 02:59 UTC15m
2026-06-19 N820FS - Jun 19, 01:50 UTCJun 19, 01:59 UTC10m
2026-06-18 N820FS - Jun 18, 20:50 UTCJun 18, 21:05 UTC15m
2026-06-16 N820FS - Jun 16, 19:45 UTCJun 16, 19:55 UTC11m
2026-06-16 N820FS - Jun 16, 14:55 UTCJun 16, 15:05 UTC10m
2026-06-16 N820FS - Jun 16, 06:10 UTCJun 16, 06:25 UTC15m
2026-06-16 N820FS - Jun 16, 03:10 UTCJun 16, 03:25 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 N820FS page for operator, model, and routing details .

Mode-S AB3169 frequently asked

What is Mode-S code AB3169?
AB3169 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N820FS.
Where is Mode-S AB3169 registered?
Mode-S code AB3169 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 AB3169 broadcasting right now?
No active broadcast right now. Last signal was Jul 23, 20:55 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AB3169, octal 52630551, decimal 11,219,305.
What flights does AB3169 operate?
Mode-S AB3169 has broadcast 1 distinct callsign, including N820FS.