Apparatus

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sensors Mode-S transponder

A442DA

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N374CA · BOMBARDIER Regional Jet CRJ-700 · operated by SKYWEST AIRLINES INC

Hex
A442DA
Octal
51041332
Decimal
10,765,018
Country
US
Tail
N374CA
Type
CRJ7
No current signal · last broadcast Jul 26, 22:25 UTC
Flights observed
676
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:25 UTC

Last known position

Most recent position reported by Mode-S A442DA.

Country allocation

The ICAO 24-bit address A442DA 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
SKW4318 SkyWest Airlines 45 2026-07-25
SKW4323 SkyWest Airlines 42 2026-07-26
SKW4253 SkyWest Airlines 42 2026-07-25
SKW4308 - 35 2026-07-16
SKW4321 SkyWest Airlines 33 2026-07-26
SKW4246 - 31 2026-07-17
SKW4312 SkyWest Airlines 27 2026-07-24
SKW4310 - 27 2026-07-19
SKW4317 SkyWest Airlines 24 2026-07-25
SKW4327 SkyWest Airlines 22 2026-07-24
SKW4237 SkyWest Airlines 21 2026-07-23
SKW4234 - 21 2026-07-20
SKW4230 - 19 2026-07-20
SKW4320 - 18 2026-07-23
SKW4263 - 18 2026-07-22
SKW4326 - 17 2026-07-17
SKW4260 - 17 2026-07-16
SKW101A SkyWest Airlines 17 2026-07-25
SKW4311 SkyWest Airlines 15 2026-07-26
SKW4279 SkyWest Airlines 15 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SKW4321 PLN → DTW Jul 26, 21:40 UTCJul 26, 22:20 UTC40m
2026-07-26 SKW4321 PLN → DTW Jul 26, 19:50 UTCJul 26, 20:15 UTC25m
2026-07-26 SKW4323 SLC → TWF Jul 26, 18:00 UTCJul 26, 18:30 UTC30m
2026-07-26 SKW4323 SLC → TWF Jul 26, 16:15 UTCJul 26, 16:40 UTC25m
2026-07-26 SKW4311 EKO → SLC Jul 26, 13:35 UTCJul 26, 14:00 UTC25m
2026-07-25 SKW4317 SLC → EKO Jul 25, 23:40 UTCJul 26, 00:00 UTC20m
2026-07-25 SKW4253 SLC → SGU Jul 25, 19:25 UTCJul 25, 20:10 UTC45m
2026-07-25 SKW4253 SLC → SGU Jul 25, 19:21 UTCJul 25, 20:05 UTC44m
2026-07-25 SKW4253 SLC → SGU Jul 25, 17:40 UTCJul 25, 18:15 UTC35m
2026-07-25 SKW4318 CDC → SLC Jul 25, 15:50 UTCJul 25, 16:20 UTC30m
2026-07-25 SKW4318 CDC → SLC Jul 25, 13:55 UTCJul 25, 14:10 UTC15m
2026-07-25 SKW101A SGU → SLC Jul 25, 12:00 UTCJul 25, 12:45 UTC45m
2026-07-25 SKW4279 ESC → MSP Jul 25, 03:20 UTCJul 25, 03:40 UTC20m
2026-07-24 SKW4312 SLC → BTM Jul 24, 21:40 UTCJul 25, 01:10 UTC3h 30m
2026-07-24 SKW4253 SLC → SGU Jul 24, 19:25 UTCJul 24, 20:15 UTC50m
2026-07-24 SKW4253 SLC → SGU Jul 24, 19:27 UTCJul 24, 19:58 UTC31m
2026-07-24 SKW4253 SLC → SGU Jul 24, 17:40 UTCJul 24, 17:55 UTC15m
2026-07-24 SKW4318 CDC → SLC Jul 24, 15:50 UTCJul 24, 16:10 UTC20m
2026-07-24 SKW4318 CDC → SLC Jul 24, 15:33 UTCJul 24, 16:00 UTC27m
2026-07-24 SKW4318 CDC → SLC Jul 24, 13:55 UTCJul 24, 14:10 UTC15m
2026-07-24 SKW101A SGU → SLC Jul 24, 11:55 UTCJul 24, 12:35 UTC40m
2026-07-24 SKW4279 ESC → MSP Jul 24, 02:55 UTCJul 24, 03:25 UTC30m
2026-07-24 SKW4327 SLC → PIH Jul 24, 01:10 UTCJul 24, 01:40 UTC30m
2026-07-23 SKW4327 SLC → PIH Jul 23, 23:30 UTCJul 23, 23:50 UTC20m
2026-07-23 SKW4320 - Jul 23, 19:25 UTCJul 23, 20:00 UTC35m
2026-07-23 SKW4320 - Jul 23, 17:35 UTCJul 23, 18:00 UTC25m
2026-07-23 SKW4237 PLN → DTW Jul 23, 15:05 UTCJul 23, 15:55 UTC50m
2026-07-22 SKW4263 - Jul 22, 23:45 UTCJul 23, 00:15 UTC30m
2026-07-22 SKW4263 SLC → SGU Jul 22, 23:40 UTCJul 23, 00:24 UTC44m
2026-07-22 SKW4320 - Jul 22, 19:30 UTCJul 22, 20:00 UTC30m
2026-07-22 SKW4320 - Jul 22, 17:20 UTCJul 22, 17:50 UTC30m
2026-07-22 SKW4237 PLN → DTW Jul 22, 15:00 UTCJul 22, 15:50 UTC50m
2026-07-22 SKW4237 PLN → DTW Jul 22, 14:59 UTCJul 22, 15:42 UTC43m
2026-07-21 SKW4263 - Jul 21, 23:35 UTCJul 22, 00:10 UTC35m
2026-07-21 SKW4253 - Jul 21, 19:25 UTCJul 21, 20:05 UTC40m
2026-07-21 SKW4253 - Jul 21, 17:40 UTCJul 21, 18:05 UTC25m
2026-07-21 SKW4318 CDC → SLC Jul 21, 15:50 UTCJul 21, 16:15 UTC25m
2026-07-21 SKW4318 CDC → SLC Jul 21, 14:00 UTCJul 21, 14:20 UTC20m
2026-07-21 SKW101A - Jul 21, 11:50 UTCJul 21, 12:35 UTC45m
2026-07-21 SKW4279 ESC → MSP Jul 21, 03:25 UTCJul 21, 03:55 UTC30m
2026-07-21 SKW4327 SLC → PIH Jul 21, 01:55 UTCJul 21, 02:25 UTC30m
2026-07-21 SKW4327 SLC → PIH Jul 21, 00:50 UTCJul 21, 01:15 UTC25m
2026-07-20 SKW4321 - Jul 20, 21:40 UTCJul 20, 22:25 UTC45m
2026-07-20 SKW4321 - Jul 20, 20:00 UTCJul 20, 20:30 UTC30m
2026-07-20 SKW4323 SLC → TWF Jul 20, 17:55 UTCJul 20, 18:30 UTC35m
2026-07-20 SKW4323 SLC → TWF Jul 20, 16:00 UTCJul 20, 16:25 UTC25m
2026-07-20 SKW4230 - Jul 20, 14:10 UTCJul 20, 14:35 UTC25m
2026-07-20 SKW4234 - Jul 20, 02:55 UTCJul 20, 03:15 UTC20m
2026-07-20 SKW4234 SLC → GJT Jul 20, 03:05 UTCJul 20, 03:28 UTC23m
2026-07-19 SKW4312 SLC → SLC Jul 19, 21:40 UTCJul 20, 01:10 UTC3h 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 N374CA page for operator, model, and routing details .

Mode-S A442DA frequently asked

What is Mode-S code A442DA?
A442DA is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N374CA.
Where is Mode-S A442DA registered?
Mode-S code A442DA 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 A442DA broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:25 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A442DA, octal 51041332, decimal 10,765,018.
What flights does A442DA operate?
Mode-S A442DA has broadcast 20 distinct callsigns, including SKW4318, SKW4323, SKW4253, SKW4308, SKW4321.