Apparatus

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sensors Mode-S transponder

A0A3F8

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N140PC · CESSNA 172 Skyhawk · operated by NAVIGATION LEASING LLC

Hex
A0A3F8
Octal
50121770
Decimal
10,527,736
Country
US
Tail
N140PC
Type
C172
No current signal · last broadcast 1d ago
Flights observed
82
Distinct callsigns
1
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S A0A3F8.

Country allocation

The ICAO 24-bit address A0A3F8 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
N140PC - 82 2026-06-04

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-04 N140PC PUB → BJC Jun 4, 20:45 UTCJun 4, 21:55 UTC1h 10m
2026-06-04 N140PC BJC → PUB Jun 4, 18:10 UTCJun 4, 19:15 UTC1h 5m
2026-06-04 N140PC BJC → BJC Jun 4, 15:55 UTCJun 4, 17:20 UTC1h 25m
2026-06-04 N140PC BJC → BJC Jun 4, 13:10 UTCJun 4, 14:10 UTC1h 0m
2026-06-03 N140PC BJC → BJC Jun 3, 22:05 UTCJun 3, 23:00 UTC55m
2026-06-03 N140PC BJC → BJC Jun 3, 17:35 UTCJun 3, 19:30 UTC1h 55m
2026-06-03 N140PC - Jun 3, 15:35 UTCJun 3, 16:40 UTC1h 5m
2026-06-03 N140PC - Jun 3, 13:55 UTCJun 3, 15:00 UTC1h 5m
2026-06-02 N140PC BJC → BJC Jun 2, 16:00 UTCJun 2, 17:15 UTC1h 15m
2026-06-02 N140PC BJC → BJC Jun 2, 13:30 UTCJun 2, 14:50 UTC1h 20m
2026-06-02 N140PC BJC → BJC Jun 2, 01:15 UTCJun 2, 02:10 UTC55m
2026-06-01 N140PC BJC → BJC Jun 1, 14:05 UTCJun 1, 15:15 UTC1h 10m
2026-06-01 N140PC BJC → BJC Jun 1, 11:55 UTCJun 1, 12:50 UTC55m
2026-05-31 N140PC BJC → BJC May 31, 18:45 UTCMay 31, 20:05 UTC1h 20m
2026-05-30 N140PC BJC → BJC May 30, 16:10 UTCMay 30, 17:30 UTC1h 20m
2026-05-30 N140PC BJC → BJC May 30, 14:10 UTCMay 30, 15:10 UTC1h 0m
2026-05-29 N140PC BJC → BJC May 29, 19:15 UTCMay 29, 20:45 UTC1h 30m
2026-05-29 N140PC BJC → BJC May 29, 16:25 UTCMay 29, 17:45 UTC1h 20m
2026-05-28 N140PC BJC → BJC May 28, 16:30 UTCMay 28, 17:45 UTC1h 15m
2026-05-28 N140PC BJC → BJC May 28, 13:00 UTCMay 28, 14:20 UTC1h 20m
2026-05-27 N140PC BJC → BJC May 27, 19:10 UTCMay 27, 20:35 UTC1h 25m
2026-05-27 N140PC BJC → BJC May 27, 15:35 UTCMay 27, 16:30 UTC55m
2026-05-26 N140PC BJC → BJC May 26, 15:54 UTCMay 26, 17:25 UTC1h 30m
2026-05-26 N140PC BJC → BJC May 26, 12:05 UTCMay 26, 13:29 UTC1h 25m
2026-05-26 N140PC BJC → BJC May 26, 00:49 UTCMay 26, 01:55 UTC1h 5m
2026-05-24 N140PC - May 24, 16:55 UTCMay 24, 17:20 UTC25m
2026-05-24 N140PC - May 24, 16:05 UTCMay 24, 16:20 UTC15m
2026-05-24 N140PC - May 24, 15:50 UTCMay 24, 16:00 UTC10m
2026-05-23 N140PC BJC → BJC May 23, 15:40 UTCMay 23, 17:35 UTC1h 55m
2026-05-22 N140PC BJC → BJC May 22, 19:15 UTCMay 22, 20:55 UTC1h 40m
2026-05-22 N140PC COS → BJC May 22, 16:30 UTCMay 22, 17:25 UTC55m
2026-05-22 N140PC BJC → COS May 22, 15:35 UTCMay 22, 16:25 UTC50m
2026-05-22 N140PC BJC → BJC May 22, 13:25 UTCMay 22, 14:35 UTC1h 10m
2026-05-21 N140PC BJC → BJC May 21, 23:50 UTCMay 22, 00:15 UTC25m
2026-05-21 N140PC BJC → BJC May 21, 15:15 UTCMay 21, 16:30 UTC1h 15m
2026-05-21 N140PC BJC → BJC May 21, 00:40 UTCMay 21, 01:30 UTC50m
2026-05-20 N140PC BJC → BJC May 20, 22:30 UTCMay 20, 22:55 UTC25m
2026-05-20 N140PC BJC → BJC May 20, 19:35 UTCMay 20, 21:05 UTC1h 30m
2026-05-20 N140PC BJC → BJC May 20, 15:15 UTCMay 20, 17:15 UTC2h 0m
2026-05-20 N140PC BJC → BJC May 20, 00:45 UTCMay 20, 01:15 UTC30m
2026-05-17 N140PC - May 17, 16:35 UTCMay 17, 17:15 UTC40m
2026-05-17 N140PC - May 17, 15:45 UTCMay 17, 16:30 UTC45m
2026-05-16 N140PC BJC → BJC May 16, 15:35 UTCMay 16, 17:40 UTC2h 5m
2026-05-14 N140PC BJC → BJC May 14, 01:00 UTCMay 14, 01:35 UTC35m
2026-05-13 N140PC BJC → BJC May 13, 18:45 UTCMay 13, 19:40 UTC55m
2026-05-13 N140PC BJC → BJC May 13, 15:45 UTCMay 13, 16:50 UTC1h 5m
2026-05-12 N140PC BJC → BJC May 12, 19:15 UTCMay 12, 20:25 UTC1h 10m
2026-05-12 N140PC BJC → BJC May 12, 16:15 UTCMay 12, 17:45 UTC1h 30m
2026-05-11 N140PC BJC → BJC May 11, 20:20 UTCMay 11, 21:40 UTC1h 20m
2026-05-10 N140PC BJC → BJC May 10, 15:19 UTCMay 10, 16:34 UTC1h 15m

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 N140PC page for operator, model, and routing details .

Mode-S A0A3F8 frequently asked

What is Mode-S code A0A3F8?
A0A3F8 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N140PC.
Where is Mode-S A0A3F8 registered?
Mode-S code A0A3F8 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 A0A3F8 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A0A3F8, octal 50121770, decimal 10,527,736.
What flights does A0A3F8 operate?
Mode-S A0A3F8 has broadcast 1 distinct callsign, including N140PC.