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sensors Mode-S transponder

A1541C

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N185JW · CESSNA 185 Skywagon · operated by ANDERSON LUTHE B, ANDERSON JENNIFER C

Hex
A1541C
Octal
50252034
Decimal
10,572,828
Country
US
Tail
N185JW
Type
C185
No current signal · last broadcast 2d ago
Flights observed
40
Distinct callsigns
1
Country
US
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S A1541C.

Country allocation

The ICAO 24-bit address A1541C 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
N185JW - 40 2026-07-11

Recent flights last 40

DateFlightRouteTakeoffLandingDuration
2026-07-11 N185JW WWA → WWA Jul 11, 19:40 UTCJul 11, 20:50 UTC1h 10m
2026-07-10 N185JW - Jul 10, 20:00 UTCJul 10, 20:35 UTC35m
2026-07-09 N185JW - Jul 9, 02:15 UTCJul 9, 02:45 UTC30m
2026-07-09 N185JW - Jul 9, 00:50 UTCJul 9, 01:25 UTC35m
2026-07-07 N185JW - Jul 7, 00:45 UTCJul 7, 00:55 UTC10m
2026-07-05 N185JW - Jul 5, 19:45 UTCJul 5, 20:20 UTC35m
2026-07-05 N185JW - Jul 5, 18:15 UTCJul 5, 18:50 UTC35m
2026-07-03 N185JW - Jul 3, 22:00 UTCJul 3, 22:35 UTC35m
2026-07-03 N185JW - Jul 3, 20:00 UTCJul 3, 20:30 UTC30m
2026-07-02 N185JW - Jul 2, 21:35 UTCJul 2, 22:05 UTC30m
2026-06-27 N185JW - Jun 27, 23:29 UTCJun 28, 00:09 UTC40m
2026-06-26 N185JW - Jun 26, 19:00 UTCJun 26, 19:35 UTC35m
2026-06-26 N185JW - Jun 26, 17:59 UTCJun 26, 18:34 UTC35m
2026-06-26 N185JW - Jun 26, 16:44 UTCJun 26, 17:29 UTC45m
2026-06-26 N185JW - Jun 26, 15:20 UTCJun 26, 16:00 UTC40m
2026-06-26 N185JW - Jun 26, 02:20 UTCJun 26, 02:50 UTC30m
2026-06-26 N185JW - Jun 26, 01:15 UTCJun 26, 01:50 UTC35m
2026-06-25 N185JW - Jun 25, 21:25 UTCJun 25, 22:04 UTC40m
2026-06-25 N185JW - Jun 25, 20:09 UTCJun 25, 20:39 UTC30m
2026-06-24 N185JW - Jun 24, 22:45 UTCJun 24, 23:20 UTC35m
2026-06-24 N185JW - Jun 24, 22:04 UTCJun 24, 22:25 UTC20m
2026-06-24 N185JW - Jun 24, 20:05 UTCJun 24, 20:24 UTC20m
2026-06-24 N185JW - Jun 24, 19:15 UTCJun 24, 19:49 UTC35m
2026-06-21 N185JW - Jun 21, 21:19 UTCJun 21, 21:54 UTC35m
2026-06-16 N185JW - Jun 16, 22:30 UTCJun 16, 23:05 UTC35m
2026-06-16 N185JW - Jun 16, 20:20 UTCJun 16, 20:55 UTC35m
2026-06-11 N185JW - Jun 11, 15:45 UTCJun 11, 16:20 UTC35m
2026-06-05 N185JW - Jun 5, 01:30 UTCJun 5, 02:05 UTC35m
2026-06-04 N185JW - Jun 4, 23:50 UTCJun 5, 00:20 UTC30m
2026-06-04 N185JW - Jun 4, 16:55 UTCJun 4, 17:30 UTC35m
2026-06-04 N185JW - Jun 4, 01:45 UTCJun 4, 02:20 UTC35m
2026-06-03 N185JW - Jun 3, 20:20 UTCJun 3, 20:55 UTC35m
2026-05-25 N185JW - May 25, 20:50 UTCMay 25, 21:35 UTC45m
2026-05-25 N185JW WWA → SKW May 25, 19:44 UTCMay 25, 20:09 UTC25m
2026-05-14 N185JW - May 14, 20:55 UTCMay 14, 21:05 UTC10m
2026-05-14 N185JW - May 14, 20:10 UTCMay 14, 20:20 UTC10m
2026-05-06 N185JW WWA → WWA May 6, 23:30 UTCMay 6, 23:40 UTC10m
2026-04-26 N185JW WWA → WWA Apr 26, 23:05 UTCApr 27, 00:25 UTC1h 20m
2026-04-15 N185JW - Apr 15, 00:10 UTCApr 15, 00:40 UTC30m
2026-04-14 N185JW - Apr 14, 23:00 UTCApr 14, 23:35 UTC35m

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 N185JW page for operator, model, and routing details .

Mode-S A1541C frequently asked

What is Mode-S code A1541C?
A1541C is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N185JW.
Where is Mode-S A1541C registered?
Mode-S code A1541C 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 A1541C broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A1541C, octal 50252034, decimal 10,572,828.
What flights does A1541C operate?
Mode-S A1541C has broadcast 1 distinct callsign, including N185JW.