Apparatus

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sensors Mode-S transponder

ACE74E

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N930SW · BOMBARDIER Regional Jet CRJ-200 · operated by SKYWEST AIRLINES INC

Hex
ACE74E
Octal
53163516
Decimal
11,331,406
Country
US
Tail
N930SW
Type
CRJ2
No current signal · last broadcast Jul 23, 20:25 UTC
Flights observed
637
Distinct callsigns
20
Country
US
Last broadcast
Jul 23, 20:25 UTC

Last known position

Most recent position reported by Mode-S ACE74E.

Country allocation

The ICAO 24-bit address ACE74E 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
SKW5117 - 9 2026-07-16
SKW4752 SkyWest Airlines 9 2026-06-08
SKW4631 - 8 2026-07-13
SKW6067 - 7 2026-07-17
SKW5251 SkyWest Airlines 7 2026-05-07
SKW6061 - 5 2026-07-16
SKW5724 SkyWest Airlines 5 2026-05-07
SKW526X SkyWest Airlines 5 2026-05-25
SKW5246 - 5 2026-06-24
SKW5123 SkyWest Airlines 5 2026-06-05
SKW5099 - 5 2026-07-13
SKW5057 - 5 2026-07-16
SKW4698 SkyWest Airlines 5 2026-06-08
SKW4697 SkyWest Airlines 5 2026-06-27
SKW6075 SkyWest Airlines 4 2026-06-03
SKW6062 - 4 2026-07-02
SKW5952 - 4 2026-06-28
SKW5819 SkyWest Airlines 4 2026-06-10
SKW5682 SkyWest Airlines 4 2026-07-01
SKW5634 - 4 2026-06-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-23 SKW376K ORD → SLN Jul 23, 20:00 UTCJul 23, 20:25 UTC25m
2026-07-23 SKW5065 - Jul 23, 14:30 UTCJul 23, 16:00 UTC1h 30m
2026-07-23 SKW5038 PLN → ORD Jul 23, 12:50 UTCJul 23, 13:25 UTC35m
2026-07-23 SKW5046 IAD → JST Jul 23, 10:45 UTCJul 23, 11:15 UTC30m
2026-07-23 SKW5046 IAD → JST Jul 23, 10:55 UTCJul 23, 11:11 UTC16m
2026-07-23 SKW572U ORD → JST Jul 23, 03:20 UTCJul 23, 04:25 UTC1h 5m
2026-07-23 SKW572U ORD → JST Jul 23, 03:19 UTCJul 23, 04:17 UTC58m
2026-07-22 SKW4644 CLT → DEN Jul 22, 23:45 UTCJul 22, 23:50 UTC5m
2026-07-22 SKW4644 CLT → DEN Jul 22, 22:20 UTCJul 22, 23:50 UTC1h 30m
2026-07-22 SKW4644 CLT → DEN Jul 22, 22:11 UTCJul 22, 23:30 UTC1h 19m
2026-07-22 SKW5566 LAX → ACV Jul 22, 19:55 UTCJul 22, 20:55 UTC1h 0m
2026-07-22 SKW5566 LAX → ACV Jul 22, 20:05 UTCJul 22, 20:56 UTC51m
2026-07-22 SKW5213 CAK → ORD Jul 22, 15:33 UTCJul 22, 16:28 UTC55m
2026-07-22 SKW5213 CAK → ORD Jul 22, 15:35 UTCJul 22, 16:50 UTC1h 15m
2026-07-22 SKW476T ORD → CAK Jul 22, 00:05 UTCJul 22, 01:05 UTC1h 0m
2026-07-21 SKW6082 TYS → ORD Jul 21, 21:40 UTCJul 21, 22:05 UTC25m
2026-07-21 SKW6082 TYS → ORD Jul 21, 21:44 UTCJul 21, 22:02 UTC18m
2026-07-18 SKW5192 DEN → MKE Jul 18, 19:15 UTCJul 18, 21:15 UTC2h 0m
2026-07-17 SKW4635 - Jul 17, 22:15 UTCJul 17, 23:05 UTC50m
2026-07-17 SKW5488 - Jul 17, 19:55 UTCJul 17, 20:29 UTC35m
2026-07-17 SKW6078 - Jul 17, 17:50 UTCJul 17, 18:29 UTC40m
2026-07-17 SKW6078 COD → DEN Jul 17, 16:56 UTCJul 17, 18:28 UTC1h 32m
2026-07-17 SKW6078 - Jul 17, 14:04 UTCJul 17, 14:44 UTC40m
2026-07-17 SKW5040 - Jul 17, 11:35 UTCJul 17, 12:30 UTC55m
2026-07-17 SKW6067 DEN → BYG Jul 17, 04:10 UTCJul 17, 04:54 UTC45m
2026-07-16 SKW5097 - Jul 16, 23:55 UTCJul 17, 01:29 UTC1h 35m
2026-07-16 SKW5117 - Jul 16, 20:39 UTCJul 16, 21:30 UTC50m
2026-07-16 SKW5117 LAX → SGU Jul 16, 20:44 UTCJul 16, 21:58 UTC1h 14m
2026-07-16 SKW455K - Jul 16, 18:40 UTCJul 16, 19:35 UTC55m
2026-07-16 SKW455K SGU → LAX Jul 16, 18:20 UTCJul 16, 19:25 UTC1h 5m
2026-07-16 SKW6061 - Jul 16, 14:45 UTCJul 16, 15:45 UTC1h 0m
2026-07-16 SKW5040 - Jul 16, 12:34 UTCJul 16, 13:25 UTC50m
2026-07-16 SKW6067 DEN → BYG Jul 16, 04:35 UTCJul 16, 05:20 UTC45m
2026-07-16 SKW5057 - Jul 16, 00:15 UTCJul 16, 01:35 UTC1h 20m
2026-07-16 SKW5057 ROW → DEN Jul 16, 00:13 UTCJul 16, 01:22 UTC1h 9m
2026-07-15 SKW768J - Jul 15, 22:15 UTCJul 15, 23:20 UTC1h 5m
2026-07-13 SKW5099 - Jul 13, 20:40 UTCJul 13, 21:20 UTC40m
2026-07-13 SKW5099 COD → DEN Jul 13, 20:10 UTCJul 13, 21:16 UTC1h 6m
2026-07-13 SKW5089 - Jul 13, 17:50 UTCJul 13, 18:30 UTC40m
2026-07-13 SKW4631 - Jul 13, 15:35 UTCJul 13, 16:20 UTC45m
2026-07-13 SKW4631 CPR → DEN Jul 13, 15:47 UTCJul 13, 16:17 UTC30m
2026-07-13 SKW4771 - Jul 13, 14:00 UTCJul 13, 14:40 UTC40m
2026-07-13 SKW4771 DEN → CPR Jul 13, 13:59 UTCJul 13, 14:39 UTC40m
2026-07-12 SKW5019 - Jul 12, 02:50 UTCJul 12, 04:01 UTC1h 10m
2026-07-12 SKW5019 ATY → DEN Jul 12, 02:52 UTCJul 12, 03:57 UTC1h 5m
2026-07-12 SKW6090 DEN → ATY Jul 12, 00:50 UTCJul 12, 01:57 UTC1h 7m
2026-07-12 SKW6090 - Jul 12, 00:45 UTCJul 12, 01:55 UTC1h 10m
2026-07-11 SKW5576 - Jul 11, 12:05 UTCJul 11, 12:35 UTC30m
2026-07-11 SKW5225 - Jul 11, 01:45 UTCJul 11, 02:25 UTC40m
2026-07-10 SKW5201 - Jul 10, 20:00 UTCJul 10, 21:40 UTC1h 40m

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 N930SW page for operator, model, and routing details .

Mode-S ACE74E frequently asked

What is Mode-S code ACE74E?
ACE74E is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N930SW.
Where is Mode-S ACE74E registered?
Mode-S code ACE74E 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 ACE74E broadcasting right now?
No active broadcast right now. Last signal was Jul 23, 20:25 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ACE74E, octal 53163516, decimal 11,331,406.
What flights does ACE74E operate?
Mode-S ACE74E has broadcast 20 distinct callsigns, including SKW5117, SKW4752, SKW4631, SKW6067, SKW5251.