Apparatus

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sensors Mode-S transponder

A1672D

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N19PX · operated by PETERSEN JORDAN L

Hex
A1672D
Octal
50263455
Decimal
10,577,709
Country
US
Tail
N19PX
No current signal · last broadcast 3d ago
Flights observed
26
Distinct callsigns
1
Country
US
Last broadcast
3d ago

Last known position

Most recent position reported by Mode-S A1672D.

Country allocation

The ICAO 24-bit address A1672D 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
N19PX - 26 2026-07-10

Recent flights last 26

DateFlightRouteTakeoffLandingDuration
2026-07-10 N19PX VNY → WHP Jul 10, 17:45 UTCJul 10, 19:10 UTC1h 25m
2026-07-09 N19PX VNY → VNY Jul 9, 03:35 UTCJul 9, 03:40 UTC5m
2026-07-09 N19PX VNY → VNY Jul 9, 03:15 UTCJul 9, 03:30 UTC15m
2026-07-08 N19PX - Jul 8, 18:50 UTCJul 8, 19:10 UTC20m
2026-07-08 N19PX - Jul 8, 18:00 UTCJul 8, 18:20 UTC20m
2026-07-07 N19PX - Jul 7, 19:50 UTCJul 7, 21:30 UTC1h 40m
2026-07-07 N19PX VNY → SBP Jul 7, 17:00 UTCJul 7, 18:45 UTC1h 45m
2026-07-06 N19PX VNY → VNY Jul 6, 18:00 UTCJul 6, 18:30 UTC30m
2026-07-04 N19PX VNY → VNY Jul 4, 16:30 UTCJul 4, 17:05 UTC35m
2026-07-03 N19PX VNY → VNY Jul 3, 17:25 UTCJul 3, 18:00 UTC35m
2026-07-02 N19PX VNY → VNY Jul 2, 18:10 UTCJul 2, 19:00 UTC50m
2026-07-01 N19PX VNY → VNY Jul 1, 17:00 UTCJul 1, 17:50 UTC50m
2026-06-26 N19PX VNY → VNY Jun 26, 18:44 UTCJun 26, 19:09 UTC25m
2026-06-11 N19PX VNY → VNY Jun 11, 16:45 UTCJun 11, 17:05 UTC20m
2026-06-10 N19PX VNY → VNY Jun 10, 18:40 UTCJun 10, 19:20 UTC40m
2026-06-09 N19PX - Jun 9, 19:35 UTCJun 9, 20:30 UTC55m
2026-06-09 N19PX VNY → SBA Jun 9, 18:05 UTCJun 9, 19:05 UTC1h 0m
2026-06-07 N19PX WHP → VNY Jun 7, 18:05 UTCJun 7, 18:30 UTC25m
2026-06-06 N19PX - Jun 6, 20:55 UTCJun 6, 21:44 UTC50m
2026-05-23 N19PX - May 23, 21:40 UTCMay 23, 23:15 UTC1h 35m
2026-05-23 N19PX - May 23, 20:05 UTCMay 23, 20:35 UTC30m
2026-05-19 N19PX - May 19, 21:10 UTCMay 19, 21:20 UTC10m
2026-04-28 N19PX - Apr 28, 17:30 UTCApr 28, 17:45 UTC15m
2026-04-27 N19PX - Apr 27, 21:50 UTCApr 27, 22:00 UTC10m
2026-04-24 N19PX - Apr 24, 19:10 UTCApr 24, 19:30 UTC20m
2026-04-23 N19PX - Apr 23, 23:55 UTCApr 24, 00:05 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 N19PX page for operator, model, and routing details .

Mode-S A1672D frequently asked

What is Mode-S code A1672D?
A1672D is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N19PX.
Where is Mode-S A1672D registered?
Mode-S code A1672D 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 A1672D broadcasting right now?
No active broadcast right now. Last signal was 3d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A1672D, octal 50263455, decimal 10,577,709.
What flights does A1672D operate?
Mode-S A1672D has broadcast 1 distinct callsign, including N19PX.