Apparatus

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sensors Mode-S transponder

A590F3

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N458MM · CIRRUS SR-20 · operated by ELLY AVIATION LLC

Hex
A590F3
Octal
51310363
Decimal
10,850,547
Country
US
Tail
N458MM
Type
SR20
No current signal · last broadcast 3d ago
Flights observed
39
Distinct callsigns
1
Country
US
Last broadcast
3d ago

Last known position

Most recent position reported by Mode-S A590F3.

Country allocation

The ICAO 24-bit address A590F3 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
N458MM - 39 2026-06-12

Recent flights last 39

DateFlightRouteTakeoffLandingDuration
2026-06-12 N458MM SQL → SQL Jun 12, 18:10 UTCJun 12, 19:40 UTC1h 30m
2026-06-11 N458MM SAC → SQL Jun 11, 19:25 UTCJun 11, 20:00 UTC35m
2026-06-11 N458MM SQL → SAC Jun 11, 18:20 UTCJun 11, 19:05 UTC45m
2026-06-08 N458MM - Jun 8, 22:10 UTCJun 8, 22:35 UTC25m
2026-06-08 N458MM - Jun 8, 21:50 UTCJun 8, 22:05 UTC15m
2026-06-08 N458MM - Jun 8, 20:25 UTCJun 8, 21:45 UTC1h 20m
2026-06-04 N458MM SQL → SQL Jun 4, 17:45 UTCJun 4, 18:55 UTC1h 10m
2026-05-31 N458MM SQL → SQL May 31, 22:15 UTCJun 1, 00:25 UTC2h 10m
2026-05-31 N458MM - May 31, 19:35 UTCMay 31, 20:00 UTC25m
2026-05-31 N458MM - May 31, 17:55 UTCMay 31, 18:20 UTC25m
2026-05-20 N458MM SQL → SQL May 20, 18:55 UTCMay 20, 19:35 UTC40m
2026-05-17 N458MM SQL → SQL May 17, 19:35 UTCMay 17, 19:55 UTC20m
2026-05-17 N458MM - May 17, 03:25 UTCMay 17, 03:45 UTC20m
2026-05-17 N458MM - May 17, 01:05 UTCMay 17, 01:25 UTC20m
2026-05-16 N458MM SQL → SQL May 16, 22:10 UTCMay 17, 00:10 UTC2h 0m
2026-05-14 N458MM SQL → SQL May 14, 21:55 UTCMay 14, 23:45 UTC1h 50m
2026-05-13 N458MM SQL → SQL May 13, 23:35 UTCMay 14, 01:20 UTC1h 45m
2026-05-13 N458MM SQL → SQL May 13, 20:10 UTCMay 13, 22:00 UTC1h 50m
2026-05-11 N458MM SQL → SQL May 11, 20:20 UTCMay 11, 21:40 UTC1h 20m
2026-05-07 N458MM SQL → SQL May 7, 23:29 UTCMay 8, 00:34 UTC1h 5m
2026-05-06 N458MM SQL → SQL May 6, 00:31 UTCMay 6, 00:35 UTC5m
2026-05-06 N458MM SQL → SQL May 6, 00:15 UTCMay 6, 00:25 UTC10m
2026-05-05 N458MM SQL → SQL May 5, 23:35 UTCMay 5, 23:40 UTC5m
2026-05-01 N458MM SQL → SQL May 1, 17:10 UTCMay 1, 19:00 UTC1h 50m
2026-04-30 N458MM SQL → SQL Apr 30, 21:45 UTCApr 30, 22:55 UTC1h 10m
2026-04-29 N458MM SQL → SQL Apr 29, 18:25 UTCApr 29, 20:35 UTC2h 10m
2026-04-28 N458MM SQL → SQL Apr 28, 19:30 UTCApr 28, 21:35 UTC2h 5m
2026-04-27 N458MM SQL → SQL Apr 27, 21:00 UTCApr 27, 22:45 UTC1h 45m
2026-04-24 N458MM SQL → SQL Apr 24, 19:15 UTCApr 24, 19:20 UTC5m
2026-04-24 N458MM SQL → SQL Apr 24, 18:45 UTCApr 24, 19:00 UTC15m
2026-04-24 N458MM - Apr 24, 18:25 UTCApr 24, 18:30 UTC5m
2026-04-24 N458MM - Apr 24, 18:10 UTCApr 24, 18:15 UTC5m
2026-04-23 N458MM SQL → SQL Apr 23, 18:00 UTCApr 23, 20:05 UTC2h 5m
2026-04-18 N458MM SQL → SQL Apr 18, 17:50 UTCApr 18, 19:30 UTC1h 40m
2026-04-17 N458MM SQL → SQL Apr 17, 19:35 UTCApr 17, 20:45 UTC1h 10m
2026-04-16 N458MM SQL → SQL Apr 16, 22:34 UTCApr 16, 22:45 UTC10m
2026-04-16 N458MM SQL → SQL Apr 16, 22:00 UTCApr 16, 22:30 UTC30m
2026-04-16 N458MM SQL → SQL Apr 16, 21:50 UTCApr 16, 21:55 UTC5m
2026-04-13 N458MM - Apr 13, 23:30 UTCApr 13, 23:40 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 N458MM page for operator, model, and routing details .

Mode-S A590F3 frequently asked

What is Mode-S code A590F3?
A590F3 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N458MM.
Where is Mode-S A590F3 registered?
Mode-S code A590F3 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 A590F3 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 A590F3, octal 51310363, decimal 10,850,547.
What flights does A590F3 operate?
Mode-S A590F3 has broadcast 1 distinct callsign, including N458MM.