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 1h ago
Flights observed
584
Distinct callsigns
20
Country
US
Last broadcast
1h ago

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 24 2026-06-10
SKW6394 - 22 2026-07-11
SKW6276 - 21 2026-07-03
SKW6406 - 20 2026-07-13
SKW6369 - 20 2026-07-07
SKW4817 - 20 2026-06-23
SKW4818 - 18 2026-06-22
SKW6344 SkyWest Airlines 17 2026-05-21
SKW6242 SkyWest Airlines 17 2026-05-19
SKW4991 - 17 2026-07-13
SKW4922 - 17 2026-07-13
SKW4821 - 17 2026-06-22
SKW6367 SkyWest Airlines 16 2026-05-15
SKW6226 SkyWest Airlines 16 2026-05-10
SKW4816 - 16 2026-06-21
SKW4994 - 14 2026-07-13
SKW4819 - 13 2026-06-22
SKW6268 - 11 2026-07-12
SKW4921 - 11 2026-06-27
SKW4813 - 11 2026-07-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 SKW4994 - Jul 13, 23:05 UTCJul 13, 23:55 UTC50m
2026-07-13 SKW4991 FSD → PHX Jul 13, 19:25 UTCJul 13, 21:45 UTC2h 20m
2026-07-13 SKW4991 - Jul 13, 16:00 UTCJul 13, 18:25 UTC2h 25m
2026-07-13 SKW6406 - Jul 13, 13:45 UTCJul 13, 14:25 UTC40m
2026-07-13 SKW6406 PSP → PHX Jul 13, 13:35 UTCJul 13, 14:21 UTC46m
2026-07-13 SKW4922 - Jul 13, 04:15 UTCJul 13, 04:45 UTC30m
2026-07-12 SKW6268 MRY → PHX Jul 12, 23:54 UTCJul 13, 01:27 UTC1h 33m
2026-07-12 SKW6268 - Jul 12, 21:35 UTCJul 12, 22:50 UTC1h 15m
2026-07-12 SKW4993 SBA → PHX Jul 12, 19:28 UTCJul 12, 20:22 UTC54m
2026-07-12 SKW4993 SBA → PHX Jul 12, 19:10 UTCJul 12, 20:30 UTC1h 20m
2026-07-12 SKW4993 PHX → SBA Jul 12, 17:15 UTCJul 12, 18:20 UTC1h 5m
2026-07-12 SKW6453 FSD → PHX Jul 12, 13:35 UTCJul 12, 15:55 UTC2h 20m
2026-07-12 SKW6452 PHX → FSD Jul 12, 04:50 UTCJul 12, 07:10 UTC2h 20m
2026-07-12 SKW4928 SLC → PHX Jul 12, 02:40 UTCJul 12, 03:55 UTC1h 15m
2026-07-12 SKW4928 SLC → PHX Jul 12, 02:45 UTCJul 12, 03:51 UTC1h 6m
2026-07-12 SKW4928 PHX → SLC Jul 12, 00:20 UTCJul 12, 01:30 UTC1h 10m
2026-07-11 SKW4935 - Jul 11, 22:55 UTCJul 11, 23:20 UTC25m
2026-07-11 SKW4935 PHX → TUS Jul 11, 21:45 UTCJul 11, 22:15 UTC30m
2026-07-11 SKW6394 BFL → PHX Jul 11, 19:30 UTCJul 11, 20:45 UTC1h 15m
2026-07-11 SKW6394 PHX → BFL Jul 11, 17:20 UTCJul 11, 18:20 UTC1h 0m
2026-07-11 SKW6431 - Jul 11, 14:55 UTCJul 11, 16:05 UTC1h 10m
2026-07-11 SKW6318 PHX → GJT Jul 11, 05:01 UTCJul 11, 06:00 UTC59m
2026-07-11 SKW6318 - Jul 11, 05:05 UTCJul 11, 05:55 UTC50m
2026-07-11 SKW4994 - Jul 11, 01:45 UTCJul 11, 02:45 UTC1h 0m
2026-07-10 SKW4994 - Jul 10, 23:35 UTCJul 11, 00:25 UTC50m
2026-07-10 SKW4991 FSD → PHX Jul 10, 20:05 UTCJul 10, 22:25 UTC2h 20m
2026-07-10 SKW4991 - Jul 10, 16:55 UTCJul 10, 19:05 UTC2h 10m
2026-07-10 SKW6406 - Jul 10, 14:45 UTCJul 10, 15:25 UTC40m
2026-07-10 SKW6406 PSP → PHX Jul 10, 14:15 UTCJul 10, 15:20 UTC1h 5m
2026-07-10 SKW4922 - Jul 10, 04:40 UTCJul 10, 05:10 UTC30m
2026-07-10 SKW4922 PHX → PSP Jul 10, 04:39 UTCJul 10, 05:19 UTC40m
2026-07-10 SKW4994 - Jul 10, 01:15 UTCJul 10, 02:20 UTC1h 5m
2026-07-10 SKW4994 GJT → PHX Jul 10, 01:06 UTCJul 10, 02:17 UTC1h 11m
2026-07-09 SKW4994 - Jul 9, 23:10 UTCJul 10, 00:00 UTC50m
2026-07-09 SKW4991 FSD → PHX Jul 9, 19:35 UTCJul 9, 22:05 UTC2h 30m
2026-07-09 SKW4991 - Jul 9, 16:20 UTCJul 9, 18:25 UTC2h 5m
2026-07-09 SKW4810 - Jul 9, 14:10 UTCJul 9, 14:50 UTC40m
2026-07-08 SKW4813 - Jul 8, 21:50 UTCJul 8, 22:25 UTC35m
2026-07-08 SKW6394 BFL → PHX Jul 8, 19:25 UTCJul 8, 20:35 UTC1h 10m
2026-07-08 SKW6394 PHX → BFL Jul 8, 17:15 UTCJul 8, 18:10 UTC55m
2026-07-08 SKW6431 - Jul 8, 15:00 UTCJul 8, 16:00 UTC1h 0m
2026-07-08 SKW6431 GJT → PHX Jul 8, 14:51 UTCJul 8, 15:58 UTC1h 7m
2026-07-08 SKW6318 - Jul 8, 04:55 UTCJul 8, 06:00 UTC1h 5m
2026-07-08 SKW6318 PHX → GJT Jul 8, 04:55 UTCJul 8, 06:01 UTC1h 6m
2026-07-08 SKW4927 SBA → PHX Jul 8, 02:00 UTCJul 8, 03:10 UTC1h 10m
2026-07-08 SKW4927 PHX → SBA Jul 8, 00:00 UTCJul 8, 01:05 UTC1h 5m
2026-07-07 SKW6373 PHX → MFR Jul 7, 22:10 UTCJul 7, 22:30 UTC20m
2026-07-07 SKW6373 PHX → MFR Jul 7, 22:05 UTCJul 7, 22:28 UTC23m
2026-07-07 SKW6373 PHX → MFR Jul 7, 20:45 UTCJul 7, 21:15 UTC30m
2026-07-07 SKW6369 - Jul 7, 19:00 UTCJul 7, 19:25 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 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 1h ago.
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, SKW6394, SKW6276, SKW6406, SKW6369.