Apparatus

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sensors Mode-S transponder

A64305

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N502SY · EMBRAER ERJ-170-200 (long wing) · operated by SKYWEST AIRLINES INC

Hex
A64305
Octal
51441405
Decimal
10,896,133
Country
US
Tail
N502SY
Type
E75L
No current signal · last broadcast Jul 26, 21:15 UTC
Flights observed
647
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:15 UTC

Last known position

Most recent position reported by Mode-S A64305.

Country allocation

The ICAO 24-bit address A64305 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
SKW6409 SkyWest Airlines 14 2026-07-24
SKW6185 SkyWest Airlines 14 2026-05-17
SKW6366 SkyWest Airlines 13 2026-07-26
SKW6330 SkyWest Airlines 13 2026-07-22
SKW6336 SkyWest Airlines 12 2026-07-20
SKW6425 SkyWest Airlines 11 2026-07-21
SKW6253 - 11 2026-07-09
SKW6220 - 11 2026-07-13
SKW5005 SkyWest Airlines 11 2026-07-20
SKW6482 SkyWest Airlines 10 2026-07-26
SKW6475 - 10 2026-07-12
SKW6404 - 10 2026-07-08
SKW6378 SkyWest Airlines 10 2026-05-15
SKW6187 SkyWest Airlines 10 2026-07-26
SKW4983 - 10 2026-07-14
SKW4925 - 10 2026-07-03
SKW6415 - 9 2026-07-03
SKW6188 SkyWest Airlines 9 2026-07-21
SKW4985 SkyWest Airlines 9 2026-05-03
SKW4919 SkyWest Airlines 9 2026-07-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SKW6366 AUS → DFW Jul 26, 20:35 UTCJul 26, 21:15 UTC40m
2026-07-26 SKW6366 AUS → DFW Jul 26, 16:45 UTCJul 26, 19:45 UTC3h 0m
2026-07-26 SKW6482 ASE → AUS Jul 26, 12:15 UTCJul 26, 15:15 UTC3h 0m
2026-07-26 SKW6187 DFW → PVU Jul 26, 01:00 UTCJul 26, 04:10 UTC3h 10m
2026-07-26 SKW6187 DFW → PVU Jul 26, 00:58 UTCJul 26, 04:09 UTC3h 11m
2026-07-25 SKW6366 AUS → DFW Jul 25, 20:40 UTCJul 25, 23:25 UTC2h 45m
2026-07-25 SKW6366 AUS → DFW Jul 25, 16:45 UTCJul 25, 19:35 UTC2h 50m
2026-07-25 SKW4895 DFW → MFE Jul 25, 12:40 UTCJul 25, 15:20 UTC2h 40m
2026-07-25 SKW4898 TUL → ORD Jul 25, 00:40 UTCJul 25, 03:25 UTC2h 45m
2026-07-25 SKW4898 TUL → ORD Jul 25, 00:37 UTCJul 25, 03:13 UTC2h 36m
2026-07-24 SKW6409 ORD → DTW Jul 24, 20:50 UTCJul 24, 23:25 UTC2h 35m
2026-07-24 SKW6409 ORD → DTW Jul 24, 17:00 UTCJul 24, 19:50 UTC2h 50m
2026-07-24 SKW6482 - Jul 24, 12:30 UTCJul 24, 15:50 UTC3h 20m
2026-07-24 SKW6187 DFW → PVU Jul 24, 01:00 UTCJul 24, 04:00 UTC3h 0m
2026-07-23 SKW6366 AUS → DFW Jul 23, 20:40 UTCJul 23, 23:30 UTC2h 50m
2026-07-23 SKW6366 AUS → DFW Jul 23, 20:36 UTCJul 23, 23:27 UTC2h 51m
2026-07-23 SKW6366 AUS → DFW Jul 23, 16:55 UTCJul 23, 19:40 UTC2h 45m
2026-07-23 SKW6482 - Jul 23, 12:20 UTCJul 23, 15:10 UTC2h 50m
2026-07-23 SKW6187 DFW → PVU Jul 23, 02:20 UTCJul 23, 05:10 UTC2h 50m
2026-07-23 SKW6187 DFW → PVU Jul 23, 02:18 UTCJul 23, 05:09 UTC2h 51m
2026-07-23 SKW6221 FAT → PHX Jul 23, 00:20 UTCJul 23, 01:20 UTC1h 0m
2026-07-22 SKW6221 FAT → PHX Jul 22, 22:25 UTCJul 22, 23:20 UTC55m
2026-07-22 SKW6330 BTV → ORD Jul 22, 19:45 UTCJul 22, 20:40 UTC55m
2026-07-22 SKW6330 BTV → ORD Jul 22, 19:41 UTCJul 22, 20:39 UTC58m
2026-07-22 SKW6330 BTV → ORD Jul 22, 17:40 UTCJul 22, 18:35 UTC55m
2026-07-22 SKW4919 SBA → PHX Jul 22, 13:10 UTCJul 22, 14:40 UTC1h 30m
2026-07-22 SKW296Y LAX → ABQ Jul 22, 03:35 UTCJul 22, 05:15 UTC1h 40m
2026-07-22 SKW4946 ORD → BUF Jul 22, 01:45 UTCJul 22, 02:30 UTC45m
2026-07-22 SKW4946 ORD → BUF Jul 22, 01:40 UTCJul 22, 02:24 UTC44m
2026-07-21 SKW6190 ORD → DTW Jul 21, 23:55 UTCJul 22, 00:45 UTC50m
2026-07-21 SKW6188 ORD → DTW Jul 21, 21:50 UTCJul 21, 22:50 UTC1h 0m
2026-07-21 SKW6188 ORD → DTW Jul 21, 19:45 UTCJul 21, 20:40 UTC55m
2026-07-21 SKW6425 MAF → DFW Jul 21, 17:45 UTCJul 21, 18:25 UTC40m
2026-07-21 SKW6425 MAF → DFW Jul 21, 15:45 UTCJul 21, 16:35 UTC50m
2026-07-21 SKW4919 SBA → PHX Jul 21, 13:15 UTCJul 21, 14:55 UTC1h 40m
2026-07-21 SKW4919 SBA → PHX Jul 21, 13:13 UTCJul 21, 14:41 UTC1h 28m
2026-07-21 SKW296Y LAX → ABQ Jul 21, 03:15 UTCJul 21, 04:55 UTC1h 40m
2026-07-21 SKW4946 ORD → BUF Jul 21, 01:15 UTCJul 21, 02:00 UTC45m
2026-07-21 SKW4946 ORD → BUF Jul 21, 01:12 UTCJul 21, 01:53 UTC41m
2026-07-20 SKW6190 - Jul 20, 23:35 UTCJul 21, 00:20 UTC45m
2026-07-20 SKW6190 LAX → LAS Jul 20, 23:19 UTCJul 21, 00:14 UTC55m
2026-07-20 SKW6188 ORD → DTW Jul 20, 21:10 UTCJul 20, 22:10 UTC1h 0m
2026-07-20 SKW6188 ORD → DTW Jul 20, 18:55 UTCJul 20, 20:05 UTC1h 10m
2026-07-20 SKW6336 PHX → ICT Jul 20, 16:25 UTCJul 20, 17:25 UTC1h 0m
2026-07-20 SKW6336 PHX → ICT Jul 20, 16:25 UTCJul 20, 17:24 UTC59m
2026-07-20 SKW6336 PHX → ICT Jul 20, 14:25 UTCJul 20, 15:25 UTC1h 0m
2026-07-20 SKW5005 PHX → STS Jul 20, 01:35 UTCJul 20, 04:35 UTC3h 0m
2026-07-20 SKW5005 PHX → STS Jul 20, 01:34 UTCJul 20, 04:26 UTC2h 52m
2026-07-19 SKW5005 PHX → STS Jul 19, 21:25 UTCJul 20, 00:35 UTC3h 10m
2026-07-19 SKW6330 BTV → ORD Jul 19, 19:05 UTCJul 19, 20:10 UTC1h 5m

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 N502SY page for operator, model, and routing details .

Mode-S A64305 frequently asked

What is Mode-S code A64305?
A64305 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N502SY.
Where is Mode-S A64305 registered?
Mode-S code A64305 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 A64305 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A64305, octal 51441405, decimal 10,896,133.
What flights does A64305 operate?
Mode-S A64305 has broadcast 20 distinct callsigns, including SKW6409, SKW6185, SKW6366, SKW6330, SKW6336.