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sensors Mode-S transponder

A305FD

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N294SY · EMBRAER ERJ-170-200 (long wing) · operated by SKYWEST AIRLINES INC

Hex
A305FD
Octal
50602775
Decimal
10,683,901
Country
US
Tail
N294SY
Type
E75L
Broadcasting now · callsign SKW4026 · 4,025 ft
Flights observed
553
Distinct callsigns
20
Country
US
Last broadcast
1h ago

Current position

A305FD is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A305FD 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
SKW3798 - 13 2026-07-03
SKW3795 SkyWest Airlines 13 2026-06-06
SKW3903 - 12 2026-06-19
SKW3982 SkyWest Airlines 11 2026-06-03
SKW4134 - 10 2026-07-06
SKW3620 - 9 2026-07-10
SKW4112 SkyWest Airlines 8 2026-06-15
SKW3745 SkyWest Airlines 8 2026-06-15
SKW4054 - 7 2026-06-15
SKW3792 SkyWest Airlines 7 2026-04-17
SKW3761 SkyWest Airlines 7 2026-04-17
SKW4152 SkyWest Airlines 6 2026-07-03
SKW4042 SkyWest Airlines 6 2026-05-30
SKW3981 SkyWest Airlines 6 2026-04-20
SKW3916 - 6 2026-06-28
SKW3876 - 6 2026-06-25
SKW3863 SkyWest Airlines 6 2026-04-20
SKW3841 - 6 2026-07-08
SKW3778 SkyWest Airlines 6 2026-04-21
SKW3765 SkyWest Airlines 6 2026-06-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 SKW4026 - Jul 14, 16:50 UTCJul 14, 17:15 UTC25m
2026-07-14 SKW4451 - Jul 14, 15:05 UTCJul 14, 15:55 UTC50m
2026-07-14 SKW4115 - Jul 14, 12:15 UTCJul 14, 13:45 UTC1h 30m
2026-07-14 SKW4098 - Jul 14, 04:05 UTCJul 14, 05:40 UTC1h 35m
2026-07-14 SKW4098 LAX → ABQ Jul 14, 03:59 UTCJul 14, 05:37 UTC1h 38m
2026-07-14 SKW4091 - Jul 14, 00:55 UTCJul 14, 02:25 UTC1h 30m
2026-07-14 SKW4091 ABQ → LAX Jul 14, 01:08 UTCJul 14, 02:22 UTC1h 14m
2026-07-13 SKW4091 - Jul 13, 22:10 UTCJul 13, 23:50 UTC1h 40m
2026-07-13 SKW3744 - Jul 13, 19:45 UTCJul 13, 20:50 UTC1h 5m
2026-07-13 SKW3680 SEA → TUS Jul 13, 15:50 UTCJul 13, 18:35 UTC2h 45m
2026-07-13 SKW4128 EUG → SEA Jul 13, 13:35 UTCJul 13, 14:15 UTC40m
2026-07-13 SKW3855 - Jul 13, 05:55 UTCJul 13, 06:45 UTC50m
2026-07-13 SKW3855 SEA → EUG Jul 13, 05:50 UTCJul 13, 06:36 UTC46m
2026-07-13 SKW3999 - Jul 13, 00:55 UTCJul 13, 03:05 UTC2h 10m
2026-07-12 SKW3999 - Jul 12, 21:30 UTCJul 13, 00:05 UTC2h 35m
2026-07-12 SKW3750 - Jul 12, 16:50 UTCJul 12, 17:55 UTC1h 5m
2026-07-12 SKW3750 - Jul 12, 14:40 UTCJul 12, 15:50 UTC1h 10m
2026-07-12 SKW4174 BZN → SEA Jul 12, 00:17 UTCJul 12, 01:47 UTC1h 30m
2026-07-11 SKW4174 SLC → SEA Jul 11, 20:00 UTCJul 12, 01:55 UTC5h 55m
2026-07-11 SKW4444 GEG → SLC Jul 11, 17:12 UTCJul 11, 18:25 UTC1h 13m
2026-07-11 SKW4444 GEG → SLC Jul 11, 17:00 UTCJul 11, 18:30 UTC1h 30m
2026-07-11 SKW4444 SLC → GEG Jul 11, 14:30 UTCJul 11, 15:50 UTC1h 20m
2026-07-11 SKW4009 YVR → SLC Jul 11, 01:45 UTCJul 11, 03:35 UTC1h 50m
2026-07-10 SKW3585 SLC → YVR Jul 10, 22:30 UTCJul 11, 00:25 UTC1h 55m
2026-07-10 SKW3804 - Jul 10, 20:05 UTCJul 10, 21:20 UTC1h 15m
2026-07-10 SKW3804 - Jul 10, 17:25 UTCJul 10, 18:30 UTC1h 5m
2026-07-10 SKW3796 - Jul 10, 13:10 UTCJul 10, 15:40 UTC2h 30m
2026-07-10 SKW3620 SLC → XNA Jul 10, 00:15 UTCJul 10, 02:30 UTC2h 15m
2026-07-09 SKW3892 - Jul 9, 21:00 UTCJul 9, 22:20 UTC1h 20m
2026-07-09 SKW3892 PSC → SLC Jul 9, 21:05 UTCJul 9, 22:15 UTC1h 10m
2026-07-09 SKW3892 - Jul 9, 18:35 UTCJul 9, 19:45 UTC1h 10m
2026-07-09 SKW3719 LEX → DTW Jul 9, 16:40 UTCJul 9, 17:45 UTC1h 5m
2026-07-09 SKW3719 LEX → DTW Jul 9, 14:10 UTCJul 9, 14:40 UTC30m
2026-07-09 SKW3828 - Jul 9, 00:50 UTCJul 9, 02:00 UTC1h 10m
2026-07-08 SKW3828 - Jul 8, 22:40 UTCJul 8, 23:40 UTC1h 0m
2026-07-08 SKW3841 SBA → SLC Jul 8, 19:55 UTCJul 8, 21:30 UTC1h 35m
2026-07-08 SKW3841 SLC → SBA Jul 8, 17:15 UTCJul 8, 18:55 UTC1h 40m
2026-07-08 SKW4138 - Jul 8, 13:15 UTCJul 8, 14:25 UTC1h 10m
2026-07-08 SKW3774 - Jul 8, 02:45 UTCJul 8, 03:15 UTC30m
2026-07-08 SKW3774 SLC → FAT Jul 8, 02:52 UTCJul 8, 03:56 UTC1h 4m
2026-07-07 SKW3882 - Jul 7, 23:40 UTCJul 8, 01:55 UTC2h 15m
2026-07-07 SKW3882 OKC → SLC Jul 7, 23:34 UTCJul 8, 01:50 UTC2h 16m
2026-07-07 SKW116X SLC → OKC Jul 7, 20:30 UTCJul 7, 22:40 UTC2h 10m
2026-07-07 SKW3786 IND → LGA Jul 7, 17:20 UTCJul 7, 18:30 UTC1h 10m
2026-07-07 SKW3786 IND → LGA Jul 7, 14:50 UTCJul 7, 16:05 UTC1h 15m
2026-07-07 SKW4009 YVR → SLC Jul 7, 01:55 UTCJul 7, 03:55 UTC2h 0m
2026-07-07 SKW4009 YVR → SLC Jul 7, 02:00 UTCJul 7, 03:47 UTC1h 47m
2026-07-06 SKW3585 SLC → YVR Jul 6, 22:30 UTCJul 7, 00:20 UTC1h 50m
2026-07-06 SKW4134 OAK → SLC Jul 6, 19:40 UTCJul 6, 21:00 UTC1h 20m
2026-07-06 SKW4134 SLC → OAK Jul 6, 17:15 UTCJul 6, 18:45 UTC1h 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 N294SY page for operator, model, and routing details .

Mode-S A305FD frequently asked

What is Mode-S code A305FD?
A305FD is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N294SY.
Where is Mode-S A305FD registered?
Mode-S code A305FD 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 A305FD broadcasting right now?
Yes. Mode-S A305FD is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A305FD, octal 50602775, decimal 10,683,901.
What flights does A305FD operate?
Mode-S A305FD has broadcast 20 distinct callsigns, including SKW3798, SKW3795, SKW3903, SKW3982, SKW4134.