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sensors Mode-S transponder

ACAAE3

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N915SW · BOMBARDIER Regional Jet CRJ-200 · operated by SKYWEST AIRLINES INC

Hex
ACAAE3
Octal
53125343
Decimal
11,315,939
Country
US
Tail
N915SW
Type
CRJ2
No current signal · last broadcast Jul 26, 22:45 UTC
Flights observed
452
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:45 UTC

Last known position

Most recent position reported by Mode-S ACAAE3.

Country allocation

The ICAO 24-bit address ACAAE3 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
SKW5981 - 7 2026-06-18
SKW5297 - 6 2026-06-20
SKW5133 - 6 2026-07-10
SKW5121 - 6 2026-07-06
SKW5118 - 6 2026-07-07
SKW5043 - 6 2026-06-22
SKW5953 SkyWest Airlines 5 2026-05-23
SKW5436 - 5 2026-07-02
SKW5138 - 5 2026-07-03
SKW5125 SkyWest Airlines 5 2026-06-11
SKW5041 - 5 2026-07-07
SKW5019 - 5 2026-07-11
SKW308W SkyWest Airlines 5 2026-05-23
SKW781L SkyWest Airlines 4 2026-05-25
SKW5887 SkyWest Airlines 4 2026-05-23
SKW5714 - 4 2026-06-18
SKW5320 SkyWest Airlines 4 2026-06-14
SKW5134 - 4 2026-07-03
SKW5100 SkyWest Airlines 4 2026-05-07
SKW5048 SkyWest Airlines 4 2026-05-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SKW5682 SFO → OMA Jul 26, 22:05 UTCJul 26, 22:45 UTC40m
2026-07-26 SKW4750 BDL → ORD Jul 26, 20:00 UTCJul 26, 20:35 UTC35m
2026-07-26 SKW5102 ORD → CIU Jul 26, 17:05 UTCJul 26, 18:40 UTC1h 35m
2026-07-26 SKW5102 ORD → CIU Jul 26, 16:41 UTCJul 26, 18:34 UTC1h 53m
2026-07-26 SKW421J DEN → CYS Jul 26, 13:50 UTCJul 26, 15:20 UTC1h 30m
2026-07-26 SKW5576 ORD → LNK Jul 26, 11:35 UTCJul 26, 12:15 UTC40m
2026-07-26 SKW5576 ORD → LNK Jul 26, 11:22 UTCJul 26, 12:05 UTC43m
2026-07-26 SKW5225 XWA → DEN Jul 26, 00:30 UTCJul 26, 01:00 UTC30m
2026-07-25 SKW4635 GJT → DEN Jul 25, 21:35 UTCJul 25, 22:10 UTC35m
2026-07-25 SKW5488 MSN → ORD Jul 25, 19:55 UTCJul 25, 20:10 UTC15m
2026-07-25 SKW6080 BNA → ORD Jul 25, 17:40 UTCJul 25, 18:37 UTC57m
2026-07-25 SKW6080 BNA → ORD Jul 25, 17:15 UTCJul 25, 18:40 UTC1h 25m
2026-07-14 SKW6099 - Jul 14, 21:40 UTCJul 14, 22:40 UTC1h 0m
2026-07-14 SKW6099 DEN → ROW Jul 14, 21:36 UTCJul 14, 22:40 UTC1h 4m
2026-07-14 SKW5400 COS → DEN Jul 14, 16:43 UTCJul 14, 17:01 UTC18m
2026-07-14 SKW5400 COS → DEN Jul 14, 16:40 UTCJul 14, 17:05 UTC25m
2026-07-13 SKW5246 DEN → COS Jul 13, 14:35 UTCJul 13, 15:00 UTC25m
2026-07-12 SKW5112 - Jul 12, 15:30 UTCJul 12, 16:55 UTC1h 25m
2026-07-12 SKW6056 - Jul 12, 13:20 UTCJul 12, 14:10 UTC50m
2026-07-11 SKW5045 - Jul 11, 23:50 UTCJul 12, 01:05 UTC1h 15m
2026-07-11 SKW524C - Jul 11, 20:05 UTCJul 11, 21:25 UTC1h 20m
2026-07-11 SKW788P - Jul 11, 17:30 UTCJul 11, 19:00 UTC1h 30m
2026-07-11 SKW425P - Jul 11, 14:35 UTCJul 11, 15:45 UTC1h 10m
2026-07-11 SKW5093 - Jul 11, 11:30 UTCJul 11, 11:55 UTC25m
2026-07-11 SKW5051 DEN → RKS Jul 11, 06:02 UTCJul 11, 07:06 UTC1h 4m
2026-07-11 SKW5051 - Jul 11, 06:01 UTCJul 11, 06:25 UTC25m
2026-07-11 SKW5019 - Jul 11, 03:40 UTCJul 11, 04:55 UTC1h 15m
2026-07-11 SKW5019 ATY → DEN Jul 11, 03:34 UTCJul 11, 04:45 UTC1h 11m
2026-07-11 SKW527Y - Jul 11, 01:30 UTCJul 11, 02:50 UTC1h 20m
2026-07-10 SKW5245 - Jul 10, 22:50 UTCJul 10, 23:35 UTC45m
2026-07-10 SKW5245 CPR → DEN Jul 10, 22:53 UTCJul 10, 23:45 UTC52m
2026-07-10 SKW5743 - Jul 10, 21:20 UTCJul 10, 22:00 UTC40m
2026-07-10 SKW5564 - Jul 10, 17:25 UTCJul 10, 18:20 UTC55m
2026-07-10 SKW470P - Jul 10, 14:40 UTCJul 10, 15:25 UTC45m
2026-07-10 SKW5590 - Jul 10, 06:00 UTCJul 10, 07:05 UTC1h 5m
2026-07-10 SKW5257 - Jul 10, 04:00 UTCJul 10, 05:10 UTC1h 10m
2026-07-10 SKW5257 DEN → BIL Jul 10, 03:57 UTCJul 10, 05:09 UTC1h 12m
2026-07-10 SKW5133 - Jul 10, 02:05 UTCJul 10, 02:45 UTC40m
2026-07-10 SKW5133 LBL → DEN Jul 10, 01:35 UTCJul 10, 02:44 UTC1h 9m
2026-07-09 SKW450X - Jul 9, 23:25 UTCJul 10, 00:05 UTC40m
2026-07-09 SKW6062 DEN → DEN Jul 9, 17:55 UTCJul 9, 22:10 UTC4h 15m
2026-07-09 SKW4690 - Jul 9, 15:55 UTCJul 9, 16:30 UTC35m
2026-07-09 SKW510A - Jul 9, 14:10 UTCJul 9, 14:35 UTC25m
2026-07-09 SKW510A DEN → GJT Jul 9, 14:02 UTCJul 9, 14:54 UTC52m
2026-07-09 SKW5130 - Jul 9, 11:45 UTCJul 9, 12:15 UTC30m
2026-07-09 SKW355X - Jul 9, 04:15 UTCJul 9, 04:50 UTC35m
2026-07-09 SKW5620 CPR → DEN Jul 9, 02:16 UTCJul 9, 02:36 UTC20m
2026-07-09 SKW5620 - Jul 9, 01:45 UTCJul 9, 02:00 UTC15m
2026-07-08 SKW5294 - Jul 8, 22:55 UTCJul 9, 00:05 UTC1h 10m
2026-07-08 SKW5294 DEN → CPR Jul 8, 22:28 UTCJul 9, 00:05 UTC1h 37m

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 N915SW page for operator, model, and routing details .

Mode-S ACAAE3 frequently asked

What is Mode-S code ACAAE3?
ACAAE3 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N915SW.
Where is Mode-S ACAAE3 registered?
Mode-S code ACAAE3 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 ACAAE3 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ACAAE3, octal 53125343, decimal 11,315,939.
What flights does ACAAE3 operate?
Mode-S ACAAE3 has broadcast 20 distinct callsigns, including SKW5981, SKW5297, SKW5133, SKW5121, SKW5118.