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sensors Mode-S transponder

A5A665

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N463SW · BOMBARDIER Regional Jet CRJ-200 · operated by SKYWEST AIRLINES INC

Hex
A5A665
Octal
51323145
Decimal
10,856,037
Country
US
Tail
N463SW
Type
CRJ2
No current signal · last broadcast Jul 26, 20:25 UTC
Flights observed
594
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 20:25 UTC

Last known position

Most recent position reported by Mode-S A5A665.

Country allocation

The ICAO 24-bit address A5A665 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
SKW5103 - 9 2026-07-17
SKW6060 SkyWest Airlines 6 2026-05-19
SKW5122 - 6 2026-07-17
SKW5105 SkyWest Airlines 6 2026-06-23
SKW4752 SkyWest Airlines 6 2026-07-20
SKW4677 - 6 2026-07-08
SKW5953 - 5 2026-07-23
SKW5131 - 5 2026-07-08
SKW5088 - 5 2026-07-01
SKW5034 SkyWest Airlines 5 2026-05-19
SKW5029 - 5 2026-06-21
SKW4644 - 5 2026-07-05
SKW6073 SkyWest Airlines 4 2026-07-25
SKW6072 SkyWest Airlines 4 2026-07-26
SKW572U SkyWest Airlines 4 2026-06-16
SKW5595 SkyWest Airlines 4 2026-07-24
SKW5320 - 4 2026-07-05
SKW5294 SkyWest Airlines 4 2026-05-19
SKW519Y - 4 2026-07-20
SKW5127 SkyWest Airlines 4 2026-05-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SKW5224 DEN → DRO Jul 26, 19:50 UTCJul 26, 20:25 UTC35m
2026-07-26 SKW5114 DEN → LBL Jul 26, 16:35 UTCJul 26, 17:50 UTC1h 15m
2026-07-26 SKW549C DEN → SUX Jul 26, 14:29 UTCJul 26, 15:34 UTC1h 5m
2026-07-26 SKW549C - Jul 26, 14:30 UTCJul 26, 15:35 UTC1h 5m
2026-07-26 SKW6072 DEN → ROW Jul 26, 11:25 UTCJul 26, 12:15 UTC50m
2026-07-26 SKW404L DEN → EAR Jul 26, 03:05 UTCJul 26, 03:55 UTC50m
2026-07-26 SKW380H FOD → DEN Jul 26, 00:05 UTCJul 26, 01:30 UTC1h 25m
2026-07-25 SKW6076 DEN → ROW Jul 25, 22:20 UTCJul 25, 23:10 UTC50m
2026-07-25 SKW6073 PIR → DEN Jul 25, 18:35 UTCJul 25, 19:55 UTC1h 20m
2026-07-25 SKW6073 PIR → DEN Jul 25, 18:38 UTCJul 25, 19:31 UTC53m
2026-07-25 SKW6071 ORD → FOD Jul 25, 17:00 UTCJul 25, 17:20 UTC20m
2026-07-25 SKW6070 LBF → DEN Jul 25, 14:55 UTCJul 25, 15:30 UTC35m
2026-07-24 SKW6074 ORD → LAF Jul 24, 22:10 UTCJul 24, 23:10 UTC1h 0m
2026-07-24 SKW5352 ORD → LGA Jul 24, 19:25 UTCJul 24, 19:45 UTC20m
2026-07-24 SKW5352 ORD → LGA Jul 24, 19:26 UTCJul 24, 19:42 UTC16m
2026-07-24 SKW5285 RNO → SFO Jul 24, 16:00 UTCJul 24, 16:20 UTC20m
2026-07-24 SKW5272 LAX → SFO Jul 24, 13:50 UTCJul 24, 14:15 UTC25m
2026-07-24 SKW5272 LAX → SFO Jul 24, 13:39 UTCJul 24, 14:09 UTC30m
2026-07-24 SKW5595 SFO → OTH Jul 24, 11:30 UTCJul 24, 11:55 UTC25m
2026-07-23 SKW5953 - Jul 23, 16:05 UTCJul 23, 16:25 UTC20m
2026-07-23 SKW5887 - Jul 23, 14:35 UTCJul 23, 15:00 UTC25m
2026-07-23 SKW5801 ORD → MEM Jul 23, 11:20 UTCJul 23, 12:40 UTC1h 20m
2026-07-22 SKW4784 FWA → ORD Jul 22, 23:40 UTCJul 23, 00:40 UTC1h 0m
2026-07-21 SKW5017 DEC → ORD Jul 21, 19:45 UTCJul 21, 20:40 UTC55m
2026-07-21 SKW465C - Jul 21, 17:30 UTCJul 21, 18:15 UTC45m
2026-07-21 SKW465C ORD → CMX Jul 21, 17:30 UTCJul 21, 18:25 UTC55m
2026-07-21 SKW5981 - Jul 21, 15:10 UTCJul 21, 15:40 UTC30m
2026-07-20 SKW4630 BFL → SFO Jul 20, 21:00 UTCJul 20, 21:25 UTC25m
2026-07-20 SKW4630 BFL → SFO Jul 20, 21:12 UTCJul 20, 21:28 UTC16m
2026-07-20 SKW4752 ORD → ROA Jul 20, 18:05 UTCJul 20, 19:05 UTC1h 0m
2026-07-20 SKW519Y ORD → CAK Jul 20, 16:05 UTCJul 20, 17:05 UTC1h 0m
2026-07-20 SKW519Y ORD → CAK Jul 20, 16:13 UTCJul 20, 16:53 UTC40m
2026-07-20 SKW5910 LNK → ORD Jul 20, 12:45 UTCJul 20, 14:20 UTC1h 35m
2026-07-19 SKW5439 ORD → LNK Jul 19, 23:20 UTCJul 20, 00:35 UTC1h 15m
2026-07-19 SKW5175 ORD → DEN Jul 19, 19:05 UTCJul 19, 20:45 UTC1h 40m
2026-07-18 SKW4798 - Jul 18, 16:15 UTCJul 18, 17:30 UTC1h 15m
2026-07-18 SKW5997 - Jul 18, 13:35 UTCJul 18, 14:10 UTC35m
2026-07-18 SKW5997 MLI → ORD Jul 18, 13:35 UTCJul 18, 14:08 UTC33m
2026-07-18 SKW578A - Jul 18, 01:39 UTCJul 18, 02:00 UTC20m
2026-07-17 SKW5122 - Jul 17, 21:39 UTCJul 17, 22:29 UTC50m
2026-07-17 SKW5122 EAU → ORD Jul 17, 21:34 UTCJul 17, 22:20 UTC46m
2026-07-17 SKW702H - Jul 17, 17:40 UTCJul 17, 18:25 UTC45m
2026-07-17 SKW5020 - Jul 17, 14:04 UTCJul 17, 15:20 UTC1h 15m
2026-07-17 SKW5020 JLN → ORD Jul 17, 14:07 UTCJul 17, 15:05 UTC58m
2026-07-17 SKW325H DEN → JLN Jul 17, 06:05 UTCJul 17, 07:25 UTC1h 20m
2026-07-17 SKW5103 DEN → DEN Jul 17, 02:15 UTCJul 17, 05:15 UTC3h 0m
2026-07-16 SKW5682 - Jul 16, 19:55 UTCJul 16, 20:39 UTC45m
2026-07-16 SKW4750 - Jul 16, 17:40 UTCJul 16, 18:15 UTC35m
2026-07-16 SKW5634 COS → DEN Jul 16, 15:38 UTCJul 16, 16:00 UTC22m
2026-07-16 SKW5634 COS → DEN Jul 16, 15:45 UTCJul 16, 16:09 UTC25m

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 N463SW page for operator, model, and routing details .

Mode-S A5A665 frequently asked

What is Mode-S code A5A665?
A5A665 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N463SW.
Where is Mode-S A5A665 registered?
Mode-S code A5A665 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 A5A665 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:25 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A5A665, octal 51323145, decimal 10,856,037.
What flights does A5A665 operate?
Mode-S A5A665 has broadcast 20 distinct callsigns, including SKW5103, SKW6060, SKW5122, SKW5105, SKW4752.