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sensors Mode-S transponder

ADA546

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N979C · PIPER PA-28-140/150/160/180 · operated by SKYWEST LEASING INC

Hex
ADA546
Octal
53322506
Decimal
11,380,038
Country
US
Tail
N979C
Type
P28A
No current signal · last broadcast 12d ago
Flights observed
150
Distinct callsigns
1
Country
US
Last broadcast
12d ago

Last known position

Most recent position reported by Mode-S ADA546.

Country allocation

The ICAO 24-bit address ADA546 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
ASI717 - 150 2026-07-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-24 ASI717 - Jul 24, 06:30 UTCJul 24, 08:00 UTC1h 30m
2026-07-24 ASI717 DVT → DVT Jul 24, 02:30 UTCJul 24, 03:55 UTC1h 25m
2026-07-23 ASI717 DVT → DVT Jul 23, 21:00 UTCJul 23, 22:05 UTC1h 5m
2026-07-23 ASI717 - Jul 23, 18:05 UTCJul 23, 19:10 UTC1h 5m
2026-07-23 ASI717 - Jul 23, 14:55 UTCJul 23, 15:45 UTC50m
2026-07-22 ASI717 - Jul 22, 21:45 UTCJul 22, 22:35 UTC50m
2026-07-22 ASI717 - Jul 22, 13:20 UTCJul 22, 14:45 UTC1h 25m
2026-07-21 ASI717 - Jul 21, 16:05 UTCJul 21, 17:25 UTC1h 20m
2026-07-21 ASI717 - Jul 21, 13:30 UTCJul 21, 14:35 UTC1h 5m
2026-07-20 ASI717 DVT → DVT Jul 20, 21:30 UTCJul 20, 21:45 UTC15m
2026-07-20 ASI717 - Jul 20, 20:40 UTCJul 20, 21:25 UTC45m
2026-07-20 ASI717 - Jul 20, 14:50 UTCJul 20, 16:00 UTC1h 10m
2026-07-20 ASI717 DVT → DVT Jul 20, 06:25 UTCJul 20, 08:30 UTC2h 5m
2026-07-20 ASI717 - Jul 20, 02:35 UTCJul 20, 04:00 UTC1h 25m
2026-07-20 ASI717 DVT → CGZ Jul 20, 00:30 UTCJul 20, 02:00 UTC1h 30m
2026-07-19 ASI717 - Jul 19, 20:55 UTCJul 19, 22:30 UTC1h 35m
2026-07-19 ASI717 - Jul 19, 16:25 UTCJul 19, 18:25 UTC2h 0m
2026-07-19 ASI717 - Jul 19, 11:35 UTCJul 19, 11:50 UTC15m
2026-07-19 ASI717 DVT → DVT Jul 19, 11:20 UTCJul 19, 11:25 UTC5m
2026-07-19 ASI717 DVT → DVT Jul 19, 05:10 UTCJul 19, 05:30 UTC20m
2026-07-16 ASI717 DVT → DVT Jul 16, 05:40 UTCJul 16, 05:55 UTC15m
2026-07-16 ASI717 DVT → DVT Jul 16, 05:05 UTCJul 16, 05:10 UTC5m
2026-07-14 ASI717 DVT → DVT Jul 14, 19:15 UTCJul 14, 20:40 UTC1h 25m
2026-07-13 ASI717 - Jul 13, 17:35 UTCJul 13, 19:00 UTC1h 25m
2026-07-10 ASI717 - Jul 10, 00:10 UTCJul 10, 01:55 UTC1h 45m
2026-07-09 ASI717 DVT → DVT Jul 9, 20:45 UTCJul 9, 22:00 UTC1h 15m
2026-07-09 ASI717 - Jul 9, 15:20 UTCJul 9, 17:05 UTC1h 45m
2026-07-08 ASI717 DVT → DVT Jul 8, 15:40 UTCJul 8, 17:20 UTC1h 40m
2026-07-08 ASI717 - Jul 8, 12:50 UTCJul 8, 14:30 UTC1h 40m
2026-07-07 ASI717 - Jul 7, 18:35 UTCJul 7, 20:00 UTC1h 25m
2026-07-07 ASI717 - Jul 7, 13:00 UTCJul 7, 14:20 UTC1h 20m
2026-07-06 ASI717 DVT → DVT Jul 6, 23:55 UTCJul 7, 01:30 UTC1h 35m
2026-07-06 ASI717 - Jul 6, 19:25 UTCJul 6, 21:25 UTC2h 0m
2026-07-06 ASI717 DVT → DVT Jul 6, 16:55 UTCJul 6, 18:25 UTC1h 30m
2026-07-06 ASI717 - Jul 6, 12:55 UTCJul 6, 14:15 UTC1h 20m
2026-07-06 ASI717 - Jul 6, 08:55 UTCJul 6, 10:20 UTC1h 25m
2026-07-06 ASI717 DVT → DVT Jul 6, 05:00 UTCJul 6, 07:30 UTC2h 30m
2026-07-06 ASI717 DVT → DVT Jul 6, 00:20 UTCJul 6, 03:30 UTC3h 10m
2026-07-05 ASI717 DVT → DVT Jul 5, 21:20 UTCJul 5, 23:20 UTC2h 0m
2026-07-05 ASI717 DVT → DVT Jul 5, 20:05 UTCJul 5, 20:15 UTC10m
2026-07-05 ASI717 HII → DVT Jul 5, 17:15 UTCJul 5, 18:55 UTC1h 40m
2026-07-05 ASI717 - Jul 5, 13:25 UTCJul 5, 15:50 UTC2h 25m
2026-07-04 ASI717 DVT → DVT Jul 4, 20:45 UTCJul 4, 22:05 UTC1h 20m
2026-07-03 ASI717 DVT → DVT Jul 3, 16:20 UTCJul 3, 17:45 UTC1h 25m
2026-07-03 ASI717 - Jul 3, 14:30 UTCJul 3, 15:05 UTC35m
2026-07-02 ASI717 - Jul 2, 16:25 UTCJul 2, 18:40 UTC2h 15m
2026-07-02 ASI717 - Jul 2, 05:55 UTCJul 2, 08:55 UTC3h 0m
2026-07-01 ASI717 - Jul 1, 21:55 UTCJul 2, 00:10 UTC2h 15m
2026-07-01 ASI717 DVT → DVT Jul 1, 17:45 UTCJul 1, 20:10 UTC2h 25m
2026-07-01 ASI717 DVT → DVT Jul 1, 13:50 UTCJul 1, 16:15 UTC2h 25m

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 N979C page for operator, model, and routing details .

Mode-S ADA546 frequently asked

What is Mode-S code ADA546?
ADA546 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N979C.
Where is Mode-S ADA546 registered?
Mode-S code ADA546 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 ADA546 broadcasting right now?
No active broadcast right now. Last signal was 12d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ADA546, octal 53322506, decimal 11,380,038.
What flights does ADA546 operate?
Mode-S ADA546 has broadcast 1 distinct callsign, including ASI717.