Apparatus

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sensors Mode-S transponder

A3EF6E

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N3526J · CESSNA 172 Skyhawk · operated by RAINIER FLIGHT SERVICE LLC

Hex
A3EF6E
Octal
50767556
Decimal
10,743,662
Country
US
Tail
N3526J
Type
C172
No current signal · last broadcast Jul 25, 00:40 UTC
Flights observed
72
Distinct callsigns
1
Country
US
Last broadcast
Jul 25, 00:40 UTC

Last known position

Most recent position reported by Mode-S A3EF6E.

Country allocation

The ICAO 24-bit address A3EF6E 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
RFS798 - 72 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 RFS798 - Jul 25, 00:00 UTCJul 25, 00:40 UTC40m
2026-07-23 RFS798 - Jul 23, 18:45 UTCJul 23, 19:50 UTC1h 5m
2026-07-22 RFS798 - Jul 22, 23:40 UTCJul 23, 00:45 UTC1h 5m
2026-07-22 RFS798 - Jul 22, 18:45 UTCJul 22, 19:35 UTC50m
2026-07-20 RFS798 PAE → PAE Jul 20, 19:50 UTCJul 20, 20:25 UTC35m
2026-07-20 RFS798 - Jul 20, 17:40 UTCJul 20, 18:35 UTC55m
2026-07-18 RFS798 PAE → PAE Jul 18, 21:05 UTCJul 18, 22:40 UTC1h 35m
2026-07-18 RFS798 - Jul 18, 18:45 UTCJul 18, 19:50 UTC1h 5m
2026-07-17 RFS798 - Jul 17, 18:55 UTCJul 17, 20:25 UTC1h 30m
2026-07-15 RFS798 - Jul 15, 19:00 UTCJul 15, 20:35 UTC1h 35m
2026-07-15 RFS798 - Jul 15, 16:35 UTCJul 15, 17:30 UTC55m
2026-07-14 RFS798 - Jul 14, 21:50 UTCJul 14, 23:20 UTC1h 29m
2026-07-14 RFS798 - Jul 14, 18:45 UTCJul 14, 20:30 UTC1h 45m
2026-07-13 RFS798 PAE → PAE Jul 13, 22:30 UTCJul 13, 23:35 UTC1h 5m
2026-07-13 RFS798 - Jul 13, 20:35 UTCJul 13, 21:30 UTC55m
2026-07-13 RFS798 - Jul 13, 16:55 UTCJul 13, 17:30 UTC35m
2026-07-12 RFS798 - Jul 12, 22:50 UTCJul 12, 23:30 UTC40m
2026-07-09 RFS798 - Jul 9, 17:20 UTCJul 9, 17:55 UTC35m
2026-07-07 RFS798 - Jul 7, 21:55 UTCJul 7, 23:10 UTC1h 15m
2026-07-06 RFS798 - Jul 6, 17:25 UTCJul 6, 18:30 UTC1h 5m
2026-07-02 RFS798 - Jul 2, 23:55 UTCJul 3, 01:20 UTC1h 25m
2026-07-02 RFS798 - Jul 2, 20:00 UTCJul 2, 21:30 UTC1h 30m
2026-06-27 RFS798 - Jun 27, 19:39 UTCJun 27, 20:34 UTC55m
2026-06-24 RFS798 - Jun 24, 16:59 UTCJun 24, 17:34 UTC35m
2026-06-22 RFS798 - Jun 22, 18:44 UTCJun 22, 19:40 UTC55m
2026-06-21 RFS798 - Jun 21, 19:05 UTCJun 21, 20:29 UTC1h 25m
2026-06-19 RFS798 - Jun 19, 20:44 UTCJun 19, 21:30 UTC45m
2026-06-19 RFS798 - Jun 19, 18:39 UTCJun 19, 19:45 UTC1h 5m
2026-06-18 RFS798 - Jun 18, 02:25 UTCJun 18, 03:35 UTC1h 10m
2026-06-18 RFS798 - Jun 18, 01:20 UTCJun 18, 02:10 UTC50m
2026-06-18 RFS798 - Jun 18, 00:55 UTCJun 18, 01:15 UTC20m
2026-06-17 RFS798 - Jun 17, 23:40 UTCJun 18, 00:00 UTC20m
2026-06-17 RFS798 - Jun 17, 22:40 UTCJun 17, 23:00 UTC20m
2026-06-17 RFS798 PAE → PAE Jun 17, 15:55 UTCJun 17, 18:00 UTC2h 5m
2026-06-16 RFS798 - Jun 16, 18:50 UTCJun 16, 20:00 UTC1h 11m
2026-06-15 RFS798 PAE → PAE Jun 15, 20:59 UTCJun 15, 22:05 UTC1h 5m
2026-06-15 RFS798 - Jun 15, 00:55 UTCJun 15, 01:10 UTC15m
2026-06-14 RFS798 - Jun 14, 23:54 UTCJun 15, 00:20 UTC25m
2026-06-13 RFS798 - Jun 13, 17:35 UTCJun 13, 18:20 UTC45m
2026-06-12 RFS798 - Jun 12, 18:01 UTCJun 12, 19:15 UTC1h 15m
2026-06-11 RFS798 PAE → PAE Jun 11, 19:55 UTCJun 11, 20:45 UTC50m
2026-06-11 RFS798 - Jun 11, 16:45 UTCJun 11, 17:40 UTC55m
2026-06-08 RFS798 - Jun 8, 19:20 UTCJun 8, 20:30 UTC1h 10m
2026-06-08 RFS798 - Jun 8, 15:35 UTCJun 8, 16:35 UTC1h 0m
2026-06-04 RFS798 - Jun 4, 23:50 UTCJun 5, 00:40 UTC50m
2026-06-03 RFS798 - Jun 3, 21:50 UTCJun 3, 22:40 UTC50m
2026-06-01 RFS798 - Jun 1, 23:55 UTCJun 2, 01:30 UTC1h 35m
2026-06-01 RFS798 - Jun 1, 15:40 UTCJun 1, 16:45 UTC1h 5m
2026-05-30 RFS798 PAE → PAE May 30, 17:20 UTCMay 30, 18:10 UTC50m
2026-05-28 RFS798 - May 28, 19:40 UTCMay 28, 20:55 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 N3526J page for operator, model, and routing details .

Mode-S A3EF6E frequently asked

What is Mode-S code A3EF6E?
A3EF6E is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N3526J.
Where is Mode-S A3EF6E registered?
Mode-S code A3EF6E 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 A3EF6E broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 00:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A3EF6E, octal 50767556, decimal 10,743,662.
What flights does A3EF6E operate?
Mode-S A3EF6E has broadcast 1 distinct callsign, including RFS798.