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sensors Mode-S transponder

A8090B

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N617DA · CIRRUS SR-20 · operated by AIRMART INC

Hex
A8090B
Octal
52004413
Decimal
11,012,363
Country
US
Tail
N617DA
Type
SR20
No current signal · last broadcast 2h ago
Flights observed
109
Distinct callsigns
1
Country
US
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S A8090B.

Country allocation

The ICAO 24-bit address A8090B 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
N617DA - 109 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 N617DA - Jul 14, 14:55 UTCJul 14, 15:05 UTC10m
2026-07-06 N617DA - Jul 6, 17:35 UTCJul 6, 18:05 UTC30m
2026-07-06 N617DA - Jul 6, 12:10 UTCJul 6, 12:45 UTC35m
2026-07-03 N617DA - Jul 3, 21:20 UTCJul 3, 21:50 UTC30m
2026-07-03 N617DA - Jul 3, 14:05 UTCJul 3, 14:40 UTC35m
2026-07-01 N617DA - Jul 1, 00:10 UTCJul 1, 01:10 UTC1h 0m
2026-06-30 N617DA - Jun 30, 23:10 UTCJun 30, 23:25 UTC15m
2026-06-30 N617DA - Jun 30, 19:00 UTCJun 30, 19:15 UTC15m
2026-06-30 N617DA - Jun 30, 15:40 UTCJun 30, 17:50 UTC2h 10m
2026-06-30 N617DA - Jun 30, 00:49 UTCJun 30, 02:20 UTC1h 31m
2026-06-29 N617DA - Jun 29, 21:50 UTCJun 29, 23:25 UTC1h 35m
2026-06-29 N617DA - Jun 29, 18:25 UTCJun 29, 20:19 UTC1h 55m
2026-06-29 N617DA - Jun 29, 16:39 UTCJun 29, 17:24 UTC45m
2026-06-28 N617DA - Jun 28, 23:04 UTCJun 29, 00:05 UTC1h 0m
2026-06-28 N617DA - Jun 28, 21:45 UTCJun 28, 22:24 UTC40m
2026-06-28 N617DA - Jun 28, 19:09 UTCJun 28, 19:34 UTC25m
2026-06-28 N617DA - Jun 28, 16:25 UTCJun 28, 18:00 UTC1h 35m
2026-06-27 N617DA - Jun 27, 22:55 UTCJun 28, 00:15 UTC1h 20m
2026-06-27 N617DA - Jun 27, 21:25 UTCJun 27, 21:50 UTC25m
2026-06-27 N617DA - Jun 27, 19:39 UTCJun 27, 20:04 UTC25m
2026-06-27 N617DA - Jun 27, 16:24 UTCJun 27, 17:59 UTC1h 35m
2026-06-26 N617DA - Jun 26, 23:00 UTCJun 27, 01:15 UTC2h 15m
2026-06-26 N617DA - Jun 26, 16:35 UTCJun 26, 18:04 UTC1h 30m
2026-06-26 N617DA - Jun 26, 00:10 UTCJun 26, 00:30 UTC20m
2026-06-25 N617DA - Jun 25, 18:24 UTCJun 25, 22:10 UTC3h 45m
2026-06-25 N617DA RDD → RDD Jun 25, 17:34 UTCJun 25, 17:39 UTC5m
2026-06-25 N617DA - Jun 25, 16:29 UTCJun 25, 16:50 UTC20m
2026-06-25 N617DA - Jun 25, 14:50 UTCJun 25, 15:15 UTC25m
2026-06-25 N617DA - Jun 25, 12:40 UTCJun 25, 13:50 UTC1h 10m
2026-06-22 N617DA - Jun 22, 14:40 UTCJun 22, 15:50 UTC1h 10m
2026-06-19 N617DA - Jun 19, 03:34 UTCJun 19, 05:00 UTC1h 25m
2026-06-18 N617DA - Jun 18, 15:55 UTCJun 18, 16:15 UTC20m
2026-06-18 N617DA - Jun 18, 14:05 UTCJun 18, 14:35 UTC30m
2026-06-16 N617DA COE → COE Jun 16, 01:35 UTCJun 16, 03:25 UTC1h 50m
2026-06-15 N617DA - Jun 15, 15:25 UTCJun 15, 16:04 UTC40m
2026-06-15 N617DA - Jun 15, 14:20 UTCJun 15, 14:40 UTC20m
2026-06-14 N617DA - Jun 14, 18:15 UTCJun 14, 18:45 UTC30m
2026-06-14 N617DA - Jun 14, 15:10 UTCJun 14, 15:55 UTC45m
2026-06-14 N617DA - Jun 14, 13:25 UTCJun 14, 13:55 UTC30m
2026-06-14 N617DA - Jun 14, 01:55 UTCJun 14, 02:35 UTC40m
2026-06-14 N617DA - Jun 14, 00:25 UTCJun 14, 01:05 UTC40m
2026-06-13 N617DA - Jun 13, 18:50 UTCJun 13, 19:05 UTC15m
2026-06-13 N617DA - Jun 13, 16:40 UTCJun 13, 17:40 UTC1h 0m
2026-06-13 N617DA - Jun 13, 14:50 UTCJun 13, 15:20 UTC30m
2026-06-12 N617DA - Jun 12, 04:55 UTCJun 12, 05:15 UTC20m
2026-06-12 N617DA - Jun 12, 03:20 UTCJun 12, 03:45 UTC25m
2026-06-11 N617DA - Jun 11, 16:30 UTCJun 11, 16:45 UTC15m
2026-06-11 N617DA - Jun 11, 15:25 UTCJun 11, 15:45 UTC20m
2026-06-11 N617DA - Jun 11, 02:45 UTCJun 11, 04:50 UTC2h 5m
2026-06-08 N617DA - Jun 8, 15:45 UTCJun 8, 16:00 UTC15m

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 N617DA page for operator, model, and routing details .

Mode-S A8090B frequently asked

What is Mode-S code A8090B?
A8090B is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N617DA.
Where is Mode-S A8090B registered?
Mode-S code A8090B 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 A8090B broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A8090B, octal 52004413, decimal 11,012,363.
What flights does A8090B operate?
Mode-S A8090B has broadcast 1 distinct callsign, including N617DA.