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sensors Mode-S transponder

A62090

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N494SM · operated by SURVEYING AND MAPPING LLC

Hex
A62090
Octal
51420220
Decimal
10,887,312
Country
US
Tail
N494SM
Type
T206
No current signal · last broadcast 12h ago
Flights observed
112
Distinct callsigns
1
Country
US
Last broadcast
12h ago

Last known position

Most recent position reported by Mode-S A62090.

Country allocation

The ICAO 24-bit address A62090 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
N494SM - 112 2026-07-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-20 N494SM - Jul 20, 19:05 UTCJul 20, 19:30 UTC25m
2026-07-20 N494SM - Jul 20, 12:45 UTCJul 20, 13:20 UTC35m
2026-07-19 N494SM - Jul 19, 19:15 UTCJul 19, 19:35 UTC20m
2026-07-19 N494SM - Jul 19, 12:20 UTCJul 19, 14:00 UTC1h 40m
2026-07-17 N494SM - Jul 17, 18:34 UTCJul 17, 19:09 UTC35m
2026-07-17 N494SM - Jul 17, 12:00 UTCJul 17, 12:50 UTC50m
2026-07-16 N494SM - Jul 16, 17:10 UTCJul 16, 17:49 UTC40m
2026-07-16 N494SM - Jul 16, 13:15 UTCJul 16, 14:05 UTC50m
2026-07-12 N494SM - Jul 12, 17:45 UTCJul 12, 18:20 UTC35m
2026-07-12 N494SM - Jul 12, 16:30 UTCJul 12, 16:45 UTC15m
2026-07-12 N494SM - Jul 12, 15:05 UTCJul 12, 15:20 UTC15m
2026-07-12 N494SM - Jul 12, 11:40 UTCJul 12, 13:20 UTC1h 40m
2026-07-11 N494SM - Jul 11, 17:15 UTCJul 11, 17:35 UTC20m
2026-07-11 N494SM - Jul 11, 14:20 UTCJul 11, 15:05 UTC45m
2026-07-11 N494SM - Jul 11, 11:50 UTCJul 11, 13:30 UTC1h 40m
2026-07-10 N494SM - Jul 10, 15:15 UTCJul 10, 16:10 UTC55m
2026-07-10 N494SM - Jul 10, 12:20 UTCJul 10, 12:55 UTC35m
2026-07-09 N494SM - Jul 9, 19:25 UTCJul 9, 20:10 UTC45m
2026-07-09 N494SM - Jul 9, 15:15 UTCJul 9, 16:15 UTC1h 0m
2026-07-08 N494SM - Jul 8, 17:55 UTCJul 8, 19:55 UTC2h 0m
2026-07-08 N494SM - Jul 8, 12:50 UTCJul 8, 16:35 UTC3h 45m
2026-07-07 N494SM - Jul 7, 20:55 UTCJul 7, 21:30 UTC35m
2026-07-07 N494SM - Jul 7, 16:35 UTCJul 7, 20:05 UTC3h 30m
2026-07-07 N494SM - Jul 7, 12:45 UTCJul 7, 14:25 UTC1h 40m
2026-07-06 N494SM - Jul 6, 19:55 UTCJul 6, 20:25 UTC30m
2026-07-03 N494SM - Jul 3, 13:10 UTCJul 3, 16:55 UTC3h 45m
2026-07-02 N494SM - Jul 2, 17:40 UTCJul 2, 20:40 UTC3h 0m
2026-07-02 N494SM - Jul 2, 12:50 UTCJul 2, 16:00 UTC3h 10m
2026-07-01 N494SM - Jul 1, 17:40 UTCJul 1, 20:40 UTC3h 0m
2026-07-01 N494SM - Jul 1, 13:00 UTCJul 1, 16:05 UTC3h 5m
2026-06-30 N494SM - Jun 30, 17:50 UTCJun 30, 18:50 UTC1h 0m
2026-06-30 N494SM - Jun 30, 13:30 UTCJun 30, 16:25 UTC2h 55m
2026-06-29 N494SM - Jun 29, 21:50 UTCJun 29, 23:05 UTC1h 15m
2026-06-29 N494SM - Jun 29, 17:05 UTCJun 29, 20:49 UTC3h 45m
2026-06-28 N494SM - Jun 28, 16:35 UTCJun 28, 20:19 UTC3h 45m
2026-06-28 N494SM - Jun 28, 13:04 UTCJun 28, 13:45 UTC40m
2026-06-26 N494SM - Jun 26, 18:20 UTCJun 26, 19:04 UTC45m
2026-06-26 N494SM - Jun 26, 14:55 UTCJun 26, 16:24 UTC1h 30m
2026-06-26 N494SM - Jun 26, 14:29 UTCJun 26, 14:35 UTC5m
2026-06-26 N494SM - Jun 26, 13:40 UTCJun 26, 14:09 UTC30m
2026-06-25 N494SM - Jun 25, 21:05 UTCJun 25, 22:39 UTC1h 35m
2026-06-25 N494SM - Jun 25, 15:24 UTCJun 25, 19:15 UTC3h 50m
2026-06-23 N494SM - Jun 23, 19:10 UTCJun 23, 21:49 UTC2h 40m
2026-06-20 N494SM - Jun 20, 13:49 UTCJun 20, 17:10 UTC3h 20m
2026-06-19 N494SM - Jun 19, 19:49 UTCJun 19, 21:44 UTC1h 55m
2026-06-11 N494SM - Jun 11, 13:20 UTCJun 11, 16:20 UTC3h 0m
2026-06-10 N494SM - Jun 10, 18:20 UTCJun 10, 18:35 UTC15m
2026-06-06 N494SM - Jun 6, 19:10 UTCJun 6, 22:10 UTC3h 0m
2026-06-06 N494SM - Jun 6, 13:39 UTCJun 6, 17:34 UTC3h 55m
2026-06-05 N494SM - Jun 5, 17:55 UTCJun 5, 21:25 UTC3h 30m

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 N494SM page for operator, model, and routing details .

Mode-S A62090 frequently asked

What is Mode-S code A62090?
A62090 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N494SM.
Where is Mode-S A62090 registered?
Mode-S code A62090 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 A62090 broadcasting right now?
No active broadcast right now. Last signal was 12h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A62090, octal 51420220, decimal 10,887,312.
What flights does A62090 operate?
Mode-S A62090 has broadcast 1 distinct callsign, including N494SM.