Apparatus

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sensors Mode-S transponder

AC5D38

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N896SK · BOMBARDIER Regional Jet CRJ-900 · operated by SKYWEST AIRLINES INC

Hex
AC5D38
Octal
53056470
Decimal
11,296,056
Country
US
Tail
N896SK
Type
CRJ9
No current signal · last broadcast Jul 26, 21:15 UTC
Flights observed
688
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:15 UTC

Last known position

Most recent position reported by Mode-S AC5D38.

Country allocation

The ICAO 24-bit address AC5D38 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
SKW4820 SkyWest Airlines 29 2026-07-26
SKW6276 SkyWest Airlines 25 2026-07-16
SKW6369 - 23 2026-07-22
SKW4817 SkyWest Airlines 23 2026-07-26
SKW6406 - 22 2026-07-17
SKW6394 - 22 2026-07-11
SKW4991 - 22 2026-07-20
SKW4922 - 19 2026-07-17
SKW4816 SkyWest Airlines 19 2026-07-26
SKW4818 - 18 2026-06-22
SKW6344 SkyWest Airlines 17 2026-05-21
SKW6242 SkyWest Airlines 17 2026-05-19
SKW4994 - 17 2026-07-18
SKW4821 - 17 2026-06-22
SKW4811 - 17 2026-07-18
SKW6367 SkyWest Airlines 16 2026-05-15
SKW6226 SkyWest Airlines 16 2026-05-10
SKW4812 - 16 2026-07-18
SKW6268 SkyWest Airlines 14 2026-07-21
SKW4813 SkyWest Airlines 14 2026-07-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SKW4820 GTR → DFW Jul 26, 20:15 UTCJul 26, 21:15 UTC1h 0m
2026-07-26 SKW4816 SGU → DFW Jul 26, 17:05 UTCJul 26, 19:05 UTC2h 0m
2026-07-26 SKW4817 DFW → SGU Jul 26, 15:00 UTCJul 26, 15:35 UTC35m
2026-07-26 SKW4817 DFW → SGU Jul 26, 03:05 UTCJul 26, 05:30 UTC2h 25m
2026-07-26 SKW4817 DFW → SGU Jul 26, 03:02 UTCJul 26, 05:26 UTC2h 24m
2026-07-25 SKW4820 GTR → DFW Jul 25, 22:00 UTCJul 25, 23:00 UTC1h 0m
2026-07-25 SKW4820 GTR → DFW Jul 25, 19:20 UTCJul 25, 20:15 UTC55m
2026-07-25 SKW4890 ONT → PHX Jul 25, 16:20 UTCJul 25, 16:55 UTC35m
2026-07-25 SKW4890 ONT → PHX Jul 25, 16:15 UTCJul 25, 16:49 UTC34m
2026-07-25 SKW4890 ONT → PHX Jul 25, 15:00 UTCJul 25, 15:15 UTC15m
2026-07-25 SKW4822 DFW → FLG Jul 25, 10:45 UTCJul 25, 12:00 UTC1h 15m
2026-07-25 SKW4822 DFW → FLG Jul 25, 10:41 UTCJul 25, 11:55 UTC1h 14m
2026-07-25 SKW4823 PDX → PHX Jul 25, 03:20 UTCJul 25, 04:35 UTC1h 15m
2026-07-25 SKW4823 PDX → PHX Jul 25, 03:19 UTCJul 25, 04:30 UTC1h 11m
2026-07-25 SKW6337 PHX → SEA Jul 25, 01:25 UTCJul 25, 02:10 UTC45m
2026-07-24 SKW6337 PHX → SEA Jul 24, 23:40 UTCJul 25, 00:05 UTC25m
2026-07-24 SKW4820 GTR → DFW Jul 24, 21:10 UTCJul 24, 22:15 UTC1h 5m
2026-07-24 SKW4820 GTR → DFW Jul 24, 18:55 UTCJul 24, 19:50 UTC55m
2026-07-24 SKW4890 ONT → PHX Jul 24, 16:30 UTCJul 24, 17:05 UTC35m
2026-07-24 SKW4890 ONT → PHX Jul 24, 15:10 UTCJul 24, 15:35 UTC25m
2026-07-24 SKW4816 SGU → DFW Jul 24, 11:35 UTCJul 24, 13:40 UTC2h 5m
2026-07-24 SKW4816 SGU → DFW Jul 24, 11:27 UTCJul 24, 13:37 UTC2h 10m
2026-07-23 SKW4813 PHX → SGU Jul 23, 22:00 UTCJul 23, 22:35 UTC35m
2026-07-23 SKW6431 GJT → PHX Jul 23, 14:40 UTCJul 23, 15:45 UTC1h 5m
2026-07-23 SKW6431 GJT → PHX Jul 23, 14:35 UTCJul 23, 15:43 UTC1h 8m
2026-07-23 SKW6318 PHX → GJT Jul 23, 05:40 UTCJul 23, 06:47 UTC1h 7m
2026-07-23 SKW6318 PHX → GJT Jul 23, 05:45 UTCJul 23, 06:45 UTC1h 0m
2026-07-23 SKW4944 PHX → PSC Jul 23, 01:45 UTCJul 23, 02:55 UTC1h 10m
2026-07-23 SKW4944 PHX → PSC Jul 23, 00:05 UTCJul 23, 01:05 UTC1h 0m
2026-07-22 SKW6373 - Jul 22, 22:05 UTCJul 22, 22:30 UTC25m
2026-07-22 SKW6373 TUS → PHX Jul 22, 22:03 UTCJul 22, 22:35 UTC32m
2026-07-22 SKW6373 PHX → TUS Jul 22, 20:55 UTCJul 22, 21:25 UTC30m
2026-07-22 SKW6369 - Jul 22, 18:50 UTCJul 22, 19:10 UTC20m
2026-07-22 SKW6369 TUS → PHX Jul 22, 18:45 UTCJul 22, 19:08 UTC23m
2026-07-22 SKW6369 - Jul 22, 17:25 UTCJul 22, 17:55 UTC30m
2026-07-22 SKW6453 YUM → PHX Jul 22, 13:30 UTCJul 22, 16:05 UTC2h 35m
2026-07-22 SKW6453 YUM → PHX Jul 22, 13:27 UTCJul 22, 16:03 UTC2h 36m
2026-07-22 SKW6452 ORD → FNT Jul 22, 02:45 UTCJul 22, 05:00 UTC2h 15m
2026-07-21 SKW6268 ORD → ICT Jul 21, 23:25 UTCJul 22, 00:55 UTC1h 30m
2026-07-21 SKW6268 ORD → ICT Jul 21, 21:10 UTCJul 21, 22:25 UTC1h 15m
2026-07-21 SKW6422 - Jul 21, 18:30 UTCJul 21, 19:45 UTC1h 15m
2026-07-21 SKW6422 PHX → SLC Jul 21, 16:05 UTCJul 21, 17:20 UTC1h 15m
2026-07-21 SKW6327 SLC → PHX Jul 21, 13:45 UTCJul 21, 14:55 UTC1h 10m
2026-07-21 SKW4921 ORD → CVG Jul 21, 04:25 UTCJul 21, 05:40 UTC1h 15m
2026-07-21 SKW4928 SLC → PHX Jul 21, 01:10 UTCJul 21, 02:25 UTC1h 15m
2026-07-20 SKW4928 PHX → SLC Jul 20, 22:45 UTCJul 21, 00:05 UTC1h 19m
2026-07-20 SKW4991 FSD → PHX Jul 20, 19:30 UTCJul 20, 21:40 UTC2h 10m
2026-07-20 SKW4991 FSD → PHX Jul 20, 19:26 UTCJul 20, 21:39 UTC2h 13m
2026-07-20 SKW4991 - Jul 20, 15:50 UTCJul 20, 18:10 UTC2h 20m
2026-07-20 SKW4810 SGU → PHX Jul 20, 13:45 UTCJul 20, 14:25 UTC40m

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 N896SK page for operator, model, and routing details .

Mode-S AC5D38 frequently asked

What is Mode-S code AC5D38?
AC5D38 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N896SK.
Where is Mode-S AC5D38 registered?
Mode-S code AC5D38 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 AC5D38 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 AC5D38, octal 53056470, decimal 11,296,056.
What flights does AC5D38 operate?
Mode-S AC5D38 has broadcast 20 distinct callsigns, including SKW4820, SKW6276, SKW6369, SKW4817, SKW6406.