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sensors Mode-S transponder

A320F9

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N300SY · EMBRAER ERJ-170-200 (long wing) · operated by SKYWEST AIRLINES INC

Hex
A320F9
Octal
50620371
Decimal
10,690,809
Country
US
Tail
N300SY
Type
E75L
No current signal · last broadcast 51m ago
Flights observed
669
Distinct callsigns
20
Country
US
Last broadcast
51m ago

Last known position

Most recent position reported by Mode-S A320F9.

Country allocation

The ICAO 24-bit address A320F9 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 20 distinct

Callsign Airline Flights Last seen
SKW3736 SkyWest Airlines 21 2026-05-25
SKW3727 - 19 2026-07-11
SKW4449 - 18 2026-07-14
SKW3694 - 15 2026-07-13
SKW4153 - 13 2026-06-24
SKW3852 - 13 2026-07-12
SKW4108 SkyWest Airlines 12 2026-06-09
SKW3768 - 12 2026-07-06
SKW3802 SkyWest Airlines 11 2026-04-25
SKW4078 SkyWest Airlines 10 2026-06-10
SKW3756 - 10 2026-07-08
SKW4179 SkyWest Airlines 9 2026-06-10
SKW3913 SkyWest Airlines 9 2026-05-15
SKW4128 SkyWest Airlines 8 2026-05-21
SKW3786 SkyWest Airlines 8 2026-06-22
SKW4047 SkyWest Airlines 7 2026-05-25
SKW4036 SkyWest Airlines 7 2026-05-25
SKW4031 SkyWest Airlines 7 2026-05-25
SKW4004 - 7 2026-07-08
SKW3892 - 7 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-15 SKW3732 - Jul 15, 01:10 UTCJul 15, 01:45 UTC35m
2026-07-14 SKW3732 - Jul 14, 22:25 UTCJul 14, 23:40 UTC1h 14m
2026-07-14 SKW129H YYC → SLC Jul 14, 19:10 UTCJul 14, 21:00 UTC1h 50m
2026-07-14 SKW104T - Jul 14, 15:35 UTCJul 14, 17:20 UTC1h 45m
2026-07-14 SKW3769 MFR → SLC Jul 14, 12:30 UTCJul 14, 14:05 UTC1h 35m
2026-07-14 SKW3722 - Jul 14, 05:10 UTCJul 14, 06:30 UTC1h 20m
2026-07-14 SKW4449 COS → SLC Jul 14, 02:00 UTCJul 14, 03:15 UTC1h 15m
2026-07-13 SKW4449 SLC → COS Jul 13, 23:45 UTCJul 14, 01:00 UTC1h 15m
2026-07-13 SKW3892 - Jul 13, 21:10 UTCJul 13, 22:30 UTC1h 20m
2026-07-13 SKW3892 - Jul 13, 19:10 UTCJul 13, 20:20 UTC1h 10m
2026-07-13 SKW3694 - Jul 13, 17:00 UTCJul 13, 18:20 UTC1h 20m
2026-07-13 SKW3694 - Jul 13, 14:25 UTCJul 13, 15:30 UTC1h 5m
2026-07-13 SKW3777 - Jul 13, 06:25 UTCJul 13, 07:35 UTC1h 10m
2026-07-13 SKW3774 - Jul 13, 04:20 UTCJul 13, 04:50 UTC30m
2026-07-13 SKW3853 SBA → SLC Jul 13, 01:55 UTCJul 13, 03:30 UTC1h 35m
2026-07-12 SKW3853 SLC → SBA Jul 12, 23:25 UTCJul 13, 01:10 UTC1h 45m
2026-07-12 SKW4084 - Jul 12, 18:35 UTCJul 12, 19:50 UTC1h 15m
2026-07-12 SKW4084 - Jul 12, 16:15 UTCJul 12, 17:30 UTC1h 15m
2026-07-12 SKW3852 - Jul 12, 00:50 UTCJul 12, 02:05 UTC1h 15m
2026-07-11 SKW3852 - Jul 11, 22:10 UTCJul 11, 23:25 UTC1h 15m
2026-07-11 SKW3727 - Jul 11, 19:45 UTCJul 11, 21:05 UTC1h 20m
2026-07-11 SKW3727 RDM → SLC Jul 11, 19:40 UTCJul 11, 20:51 UTC1h 11m
2026-07-11 SKW3727 SLC → RDM Jul 11, 17:05 UTCJul 11, 18:30 UTC1h 25m
2026-07-11 SKW4152 ABQ → SLC Jul 11, 14:25 UTCJul 11, 15:45 UTC1h 20m
2026-07-11 SKW3729 SLC → ABQ Jul 11, 02:55 UTCJul 11, 04:15 UTC1h 20m
2026-07-11 SKW3903 OAK → SLC Jul 11, 00:10 UTCJul 11, 01:40 UTC1h 30m
2026-07-10 SKW3903 SLC → OAK Jul 10, 21:40 UTCJul 10, 23:20 UTC1h 40m
2026-07-10 SKW3694 - Jul 10, 17:10 UTCJul 10, 18:25 UTC1h 15m
2026-07-10 SKW3694 - Jul 10, 14:20 UTCJul 10, 15:30 UTC1h 10m
2026-07-10 SKW101A - Jul 10, 12:10 UTCJul 10, 12:50 UTC40m
2026-07-10 SKW4279 - Jul 10, 03:05 UTCJul 10, 03:40 UTC35m
2026-07-10 SKW3800 GTF → SLC Jul 10, 00:39 UTCJul 10, 01:39 UTC1h 0m
2026-07-09 SKW3800 - Jul 9, 22:15 UTCJul 9, 22:45 UTC30m
2026-07-09 SKW3859 SLC → SLC Jul 9, 17:05 UTCJul 9, 20:35 UTC3h 30m
2026-07-09 SKW105W YVR → SLC Jul 9, 14:00 UTCJul 9, 15:50 UTC1h 50m
2026-07-09 SKW3584 SLC → YVR Jul 9, 03:15 UTCJul 9, 05:10 UTC1h 55m
2026-07-09 SKW4443 POC → SLC Jul 9, 00:20 UTCJul 9, 01:40 UTC1h 20m
2026-07-08 SKW4443 SLC → ONT Jul 8, 21:55 UTCJul 8, 23:20 UTC1h 25m
2026-07-08 SKW129H YYC → SLC Jul 8, 18:50 UTCJul 8, 20:35 UTC1h 45m
2026-07-08 SKW104T SLC → YYC Jul 8, 15:35 UTCJul 8, 17:20 UTC1h 45m
2026-07-08 SKW4004 - Jul 8, 12:15 UTCJul 8, 13:25 UTC1h 10m
2026-07-08 SKW3756 SLC → RDM Jul 8, 05:15 UTCJul 8, 06:30 UTC1h 15m
2026-07-08 SKW4105 - Jul 8, 00:05 UTCJul 8, 01:35 UTC1h 30m
2026-07-07 SKW4105 SLC → EUG Jul 7, 21:40 UTCJul 7, 23:10 UTC1h 30m
2026-07-07 SKW3694 - Jul 7, 17:10 UTCJul 7, 18:30 UTC1h 20m
2026-07-07 SKW3694 - Jul 7, 14:30 UTCJul 7, 15:45 UTC1h 15m
2026-07-07 SKW3862 - Jul 7, 12:10 UTCJul 7, 12:45 UTC35m
2026-07-07 SKW3845 SLC → GTF Jul 7, 03:22 UTCJul 7, 04:22 UTC1h 0m
2026-07-07 SKW3845 - Jul 7, 03:20 UTCJul 7, 03:50 UTC30m
2026-07-06 SKW3800 SLC → SLC Jul 6, 22:10 UTCJul 7, 01:45 UTC3h 35m

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 N300SY page for operator, model, and routing details .

Mode-S A320F9 frequently asked

What is Mode-S code A320F9?
A320F9 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N300SY.
Where is Mode-S A320F9 registered?
Mode-S code A320F9 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 A320F9 broadcasting right now?
No active broadcast right now. Last signal was 51m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A320F9, octal 50620371, decimal 10,690,809.
What flights does A320F9 operate?
Mode-S A320F9 has broadcast 20 distinct callsigns, including SKW3736, SKW3727, SKW4449, SKW3694, SKW4153.