Apparatus

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sensors Mode-S transponder

AB8A54

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N8425F · PIPER PA-28-140/150/160/180 · operated by SONS AVIATION LLC

Hex
AB8A54
Octal
52705124
Decimal
11,242,068
Country
US
Tail
N8425F
Type
P28A
No current signal · last broadcast Jul 23, 20:35 UTC
Flights observed
74
Distinct callsigns
1
Country
US
Last broadcast
Jul 23, 20:35 UTC

Last known position

Most recent position reported by Mode-S AB8A54.

Country allocation

The ICAO 24-bit address AB8A54 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
N8425F - 74 2026-07-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-23 N8425F ANB → ANB Jul 23, 19:15 UTCJul 23, 20:30 UTC1h 15m
2026-07-22 N8425F ANB → ANB Jul 22, 21:00 UTCJul 22, 22:00 UTC1h 0m
2026-07-22 N8425F - Jul 22, 16:35 UTCJul 22, 17:55 UTC1h 20m
2026-07-22 N8425F - Jul 22, 15:40 UTCJul 22, 15:55 UTC15m
2026-07-21 N8425F - Jul 21, 18:35 UTCJul 21, 18:45 UTC10m
2026-07-21 N8425F - Jul 21, 17:25 UTCJul 21, 17:35 UTC10m
2026-07-21 N8425F - Jul 21, 16:25 UTCJul 21, 16:50 UTC25m
2026-07-21 N8425F ANB → ANB Jul 21, 16:00 UTCJul 21, 16:10 UTC10m
2026-07-17 N8425F ANB → ANB Jul 17, 13:20 UTCJul 17, 14:30 UTC1h 10m
2026-07-16 N8425F - Jul 16, 14:20 UTCJul 16, 14:50 UTC30m
2026-07-11 N8425F ANB → ANB Jul 11, 22:25 UTCJul 11, 23:05 UTC40m
2026-07-11 N8425F - Jul 11, 20:45 UTCJul 11, 21:00 UTC15m
2026-07-11 N8425F ANB → ANB Jul 11, 15:40 UTCJul 11, 17:10 UTC1h 30m
2026-07-11 N8425F ANB → ANB Jul 11, 14:00 UTCJul 11, 14:30 UTC30m
2026-07-10 N8425F ANB → ANB Jul 10, 18:10 UTCJul 10, 18:30 UTC20m
2026-07-10 N8425F ANB → ANB Jul 10, 17:45 UTCJul 10, 18:05 UTC20m
2026-07-10 N8425F ANB → ANB Jul 10, 16:25 UTCJul 10, 16:30 UTC5m
2026-07-10 N8425F ANB → ANB Jul 10, 16:00 UTCJul 10, 16:10 UTC10m
2026-07-10 N8425F ANB → ANB Jul 10, 14:45 UTCJul 10, 15:20 UTC35m
2026-07-10 N8425F - Jul 10, 13:30 UTCJul 10, 14:05 UTC35m
2026-07-10 N8425F - Jul 10, 11:25 UTCJul 10, 12:40 UTC1h 15m
2026-07-09 N8425F ANB → ANB Jul 9, 14:55 UTCJul 9, 15:35 UTC40m
2026-07-09 N8425F ANB → ANB Jul 9, 13:00 UTCJul 9, 13:40 UTC40m
2026-07-07 N8425F ANB → ANB Jul 7, 14:55 UTCJul 7, 15:40 UTC45m
2026-07-05 N8425F ANB → ANB Jul 5, 19:40 UTCJul 5, 19:45 UTC5m
2026-07-03 N8425F - Jul 3, 16:30 UTCJul 3, 17:15 UTC45m
2026-07-03 N8425F - Jul 3, 14:50 UTCJul 3, 15:45 UTC55m
2026-07-03 N8425F ANB → ANB Jul 3, 13:05 UTCJul 3, 13:40 UTC35m
2026-06-11 N8425F - Jun 11, 14:40 UTCJun 11, 16:00 UTC1h 20m
2026-06-11 N8425F ANB → ANB Jun 11, 13:00 UTCJun 11, 13:50 UTC50m
2026-06-10 N8425F - Jun 10, 22:30 UTCJun 10, 23:15 UTC45m
2026-06-10 N8425F - Jun 10, 17:35 UTCJun 10, 18:05 UTC30m
2026-06-10 N8425F - Jun 10, 16:45 UTCJun 10, 16:55 UTC10m
2026-06-10 N8425F ANB → ANB Jun 10, 15:05 UTCJun 10, 15:45 UTC40m
2026-06-10 N8425F ANB → ANB Jun 10, 13:10 UTCJun 10, 14:05 UTC55m
2026-06-09 N8425F - Jun 9, 18:55 UTCJun 9, 19:10 UTC15m
2026-06-09 N8425F - Jun 9, 17:50 UTCJun 9, 18:00 UTC10m
2026-06-09 N8425F ANB → ANB Jun 9, 15:15 UTCJun 9, 15:50 UTC35m
2026-06-06 N8425F - Jun 6, 14:09 UTCJun 6, 14:54 UTC45m
2026-06-06 N8425F ANB → ASN Jun 6, 13:25 UTCJun 6, 14:04 UTC40m
2026-06-05 N8425F ANB → ANB Jun 5, 14:10 UTCJun 5, 15:30 UTC1h 20m
2026-06-04 N8425F ANB → ANB Jun 4, 21:45 UTCJun 4, 22:35 UTC50m
2026-06-04 N8425F ANB → ANB Jun 4, 15:10 UTCJun 4, 16:05 UTC55m
2026-06-04 N8425F - Jun 4, 12:55 UTCJun 4, 13:30 UTC35m
2026-06-04 N8425F - Jun 4, 11:20 UTCJun 4, 11:50 UTC30m
2026-06-03 N8425F ANB → ANB Jun 3, 21:25 UTCJun 3, 22:30 UTC1h 5m
2026-06-03 N8425F ANB → ANB Jun 3, 19:40 UTCJun 3, 20:20 UTC40m
2026-06-03 N8425F - Jun 3, 16:30 UTCJun 3, 17:10 UTC40m
2026-06-03 N8425F - Jun 3, 13:45 UTCJun 3, 14:30 UTC45m
2026-06-02 N8425F ANB → ANB Jun 2, 19:50 UTCJun 2, 20:30 UTC40m

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 N8425F page for operator, model, and routing details .

Mode-S AB8A54 frequently asked

What is Mode-S code AB8A54?
AB8A54 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N8425F.
Where is Mode-S AB8A54 registered?
Mode-S code AB8A54 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 AB8A54 broadcasting right now?
No active broadcast right now. Last signal was Jul 23, 20:35 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AB8A54, octal 52705124, decimal 11,242,068.
What flights does AB8A54 operate?
Mode-S AB8A54 has broadcast 1 distinct callsign, including N8425F.