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 6h ago
Flights observed
576
Distinct callsigns
20
Country
US
Last broadcast
6h ago

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 - 35 2026-07-09
SKW4308 - 33 2026-07-12
SKW4323 - 32 2026-07-13
SKW4253 - 32 2026-07-09
SKW4246 - 29 2026-07-13
SKW4312 - 25 2026-07-10
SKW4321 - 24 2026-07-13
SKW4317 - 23 2026-07-14
SKW4310 SkyWest Airlines 22 2026-05-30
SKW4234 - 19 2026-06-30
SKW4237 - 18 2026-07-08
SKW4230 SkyWest Airlines 16 2026-06-30
SKW4263 SkyWest Airlines 15 2026-07-07
SKW4327 - 14 2026-07-14
SKW4320 - 14 2026-07-08
SKW4315 SkyWest Airlines 14 2026-06-03
SKW4260 - 14 2026-07-12
SKW101A - 14 2026-07-01
SKW4311 - 13 2026-07-13
SKW4326 SkyWest Airlines 12 2026-06-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 SKW4317 - Jul 14, 03:30 UTCJul 14, 03:55 UTC25m
2026-07-14 SKW4327 - Jul 14, 01:00 UTCJul 14, 01:30 UTC30m
2026-07-13 SKW4327 - Jul 13, 23:35 UTCJul 14, 00:00 UTC25m
2026-07-13 SKW4321 - Jul 13, 21:50 UTCJul 13, 22:30 UTC40m
2026-07-13 SKW4321 - Jul 13, 19:50 UTCJul 13, 20:20 UTC30m
2026-07-13 SKW4323 - Jul 13, 17:50 UTCJul 13, 18:30 UTC40m
2026-07-13 SKW4323 - Jul 13, 16:05 UTCJul 13, 16:30 UTC25m
2026-07-13 SKW4311 - Jul 13, 13:40 UTCJul 13, 14:05 UTC25m
2026-07-13 SKW4317 - Jul 13, 03:45 UTCJul 13, 04:05 UTC20m
2026-07-13 SKW4246 - Jul 13, 01:40 UTCJul 13, 01:55 UTC15m
2026-07-12 SKW4246 - Jul 12, 23:55 UTCJul 13, 00:10 UTC15m
2026-07-12 SKW4260 - Jul 12, 21:40 UTCJul 12, 22:10 UTC30m
2026-07-12 SKW4260 - Jul 12, 19:35 UTCJul 12, 19:55 UTC20m
2026-07-12 SKW4308 - Jul 12, 17:35 UTCJul 12, 18:15 UTC40m
2026-07-12 SKW4308 - Jul 12, 15:50 UTCJul 12, 16:25 UTC35m
2026-07-12 SKW4322 - Jul 12, 12:25 UTCJul 12, 12:50 UTC25m
2026-07-12 SKW4325 - Jul 12, 03:30 UTCJul 12, 03:50 UTC20m
2026-07-12 SKW4327 - Jul 12, 01:05 UTCJul 12, 01:35 UTC30m
2026-07-11 SKW4327 - Jul 11, 23:35 UTCJul 12, 00:01 UTC25m
2026-07-11 SKW4321 - Jul 11, 21:45 UTCJul 11, 22:30 UTC45m
2026-07-11 SKW4321 - Jul 11, 19:50 UTCJul 11, 20:10 UTC20m
2026-07-11 SKW4323 - Jul 11, 18:05 UTCJul 11, 18:40 UTC35m
2026-07-11 SKW4323 - Jul 11, 16:15 UTCJul 11, 16:40 UTC25m
2026-07-11 SKW4311 - Jul 11, 13:40 UTCJul 11, 14:10 UTC30m
2026-07-11 SKW4311 EKO → SLC Jul 11, 13:41 UTCJul 11, 14:00 UTC19m
2026-07-11 SKW4317 - Jul 11, 03:35 UTCJul 11, 03:55 UTC20m
2026-07-11 SKW4246 - Jul 11, 01:15 UTCJul 11, 01:35 UTC20m
2026-07-10 SKW4246 - Jul 10, 23:15 UTCJul 10, 23:30 UTC15m
2026-07-10 SKW4260 - Jul 10, 21:25 UTCJul 10, 21:55 UTC30m
2026-07-10 SKW4260 - Jul 10, 19:35 UTCJul 10, 19:55 UTC20m
2026-07-10 SKW4308 - Jul 10, 18:00 UTCJul 10, 18:40 UTC40m
2026-07-10 SKW4308 - Jul 10, 15:50 UTCJul 10, 16:10 UTC20m
2026-07-10 SKW4322 - Jul 10, 12:20 UTCJul 10, 12:45 UTC25m
2026-07-10 SKW4325 - Jul 10, 03:30 UTCJul 10, 03:50 UTC20m
2026-07-10 SKW4312 - Jul 10, 00:35 UTCJul 10, 01:05 UTC30m
2026-07-09 SKW4312 - Jul 9, 21:40 UTCJul 9, 22:10 UTC30m
2026-07-09 SKW4312 SLC → BTM Jul 9, 21:41 UTCJul 9, 22:31 UTC50m
2026-07-09 SKW4253 - Jul 9, 19:25 UTCJul 9, 20:05 UTC40m
2026-07-09 SKW4253 SGU → SLC Jul 9, 19:24 UTCJul 9, 19:57 UTC33m
2026-07-09 SKW4253 - Jul 9, 17:30 UTCJul 9, 18:10 UTC40m
2026-07-09 SKW4318 - Jul 9, 15:55 UTCJul 9, 16:15 UTC20m
2026-07-09 SKW4318 CDC → SLC Jul 9, 15:35 UTCJul 9, 16:11 UTC36m
2026-07-09 SKW4318 - Jul 9, 14:00 UTCJul 9, 14:15 UTC15m
2026-07-09 SKW4246 - Jul 9, 01:45 UTCJul 9, 02:05 UTC20m
2026-07-08 SKW4246 - Jul 8, 23:45 UTCJul 9, 00:05 UTC20m
2026-07-08 SKW4320 - Jul 8, 19:30 UTCJul 8, 20:05 UTC35m
2026-07-08 SKW4320 - Jul 8, 17:25 UTCJul 8, 17:50 UTC25m
2026-07-08 SKW4237 - Jul 8, 15:05 UTCJul 8, 15:45 UTC40m
2026-07-07 SKW4263 SLC → SGU Jul 7, 23:35 UTCJul 8, 00:05 UTC30m
2026-07-07 SKW4320 SLC → SLC Jul 7, 17:30 UTCJul 7, 20:05 UTC2h 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 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 6h ago.
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, SKW4308, SKW4323, SKW4253, SKW4246.