Apparatus

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sensors Mode-S transponder

A8AAA5

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N658CA · BOMBARDIER Regional Jet CRJ-700 · operated by SKYWEST AIRLINES INC

Hex
A8AAA5
Octal
52125245
Decimal
11,053,733
Country
US
Tail
N658CA
Type
CRJ7
No current signal · last broadcast 5h ago
Flights observed
270
Distinct callsigns
20
Country
US
Last broadcast
5h ago

Last known position

Most recent position reported by Mode-S A8AAA5.

Country allocation

The ICAO 24-bit address A8AAA5 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
SKW4329 SkyWest Airlines 23 2026-05-25
SKW4330 SkyWest Airlines 22 2026-05-29
SKW4245 SkyWest Airlines 14 2026-05-27
SKW4305 SkyWest Airlines 11 2026-05-28
SKW4292 SkyWest Airlines 11 2026-05-22
SKW4274 SkyWest Airlines 11 2026-05-20
SKW4291 SkyWest Airlines 8 2026-05-23
SKW4233 SkyWest Airlines 8 2026-05-21
SKW184C SkyWest Airlines 7 2026-05-27
SKW145H SkyWest Airlines 7 2026-05-26
SKW4331 SkyWest Airlines 6 2026-05-18
SKW4303 SkyWest Airlines 6 2026-05-19
SKW4298 SkyWest Airlines 6 2026-05-29
SKW4284 SkyWest Airlines 6 2026-05-28
SKW4266 SkyWest Airlines 6 2026-05-16
SKW4244 SkyWest Airlines 6 2026-05-24
SKW4239 SkyWest Airlines 6 2026-05-13
SKW4238 SkyWest Airlines 6 2026-05-28
SKW4231 SkyWest Airlines 6 2026-05-14
SKW4229 SkyWest Airlines 6 2026-05-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 SKW4289 MSP → XWA May 30, 01:45 UTCMay 30, 02:45 UTC1h 0m
2026-05-29 SKW4330 MSP → INL May 29, 21:10 UTCMay 29, 21:50 UTC40m
2026-05-29 SKW4330 MSP → INL May 29, 21:03 UTCMay 29, 21:49 UTC46m
2026-05-29 SKW4330 MSP → INL May 29, 18:30 UTCMay 29, 19:15 UTC45m
2026-05-29 SKW4229 HIB → MSP May 29, 15:55 UTCMay 29, 16:20 UTC25m
2026-05-29 SKW4229 HIB → MSP May 29, 15:56 UTCMay 29, 16:18 UTC22m
2026-05-29 SKW4229 HIB → MSP May 29, 14:20 UTCMay 29, 14:40 UTC20m
2026-05-29 SKW4298 ATY → MSP May 29, 11:55 UTCMay 29, 12:35 UTC40m
2026-05-29 SKW4298 ATY → MSP May 29, 11:50 UTCMay 29, 12:26 UTC36m
2026-05-28 SKW4299 ABR → MSP May 28, 23:35 UTCMay 29, 00:00 UTC25m
2026-05-28 SKW4284 XWA → MSP May 28, 18:05 UTCMay 28, 22:05 UTC4h 0m
2026-05-28 SKW4305 MSP → RHI May 28, 15:55 UTCMay 28, 16:30 UTC35m
2026-05-28 SKW4305 MSP → RHI May 28, 14:25 UTCMay 28, 14:50 UTC25m
2026-05-28 SKW4238 ABR → MSP May 28, 11:35 UTCMay 28, 12:15 UTC40m
2026-05-27 SKW4264 MSP → ABR May 27, 23:50 UTCMay 28, 00:25 UTC35m
2026-05-27 SKW4295 MQT → DTW May 27, 21:30 UTCMay 27, 22:15 UTC45m
2026-05-27 SKW4314 MSP → MQT May 27, 19:40 UTCMay 27, 20:20 UTC40m
2026-05-27 SKW4245 INL → MSP May 27, 16:10 UTCMay 27, 16:35 UTC25m
2026-05-27 SKW4245 INL → MSP May 27, 16:13 UTCMay 27, 16:35 UTC22m
2026-05-27 SKW4245 INL → MSP May 27, 14:20 UTCMay 27, 14:50 UTC30m
2026-05-27 SKW184C CIU → MSP May 27, 11:25 UTCMay 27, 12:20 UTC55m
2026-05-26 SKW145H DTW → CIU May 26, 22:09 UTCMay 26, 22:39 UTC30m
2026-05-25 SKW4294 IMT → MSP May 25, 22:10 UTCMay 25, 22:55 UTC45m
2026-05-25 SKW4270 MSP → IMT May 25, 20:50 UTCMay 25, 21:19 UTC30m
2026-05-25 SKW4329 MSP → GFK May 25, 17:35 UTCMay 25, 18:15 UTC40m
2026-05-25 SKW4329 MSP → GFK May 25, 17:34 UTCMay 25, 18:14 UTC40m
2026-05-25 SKW4329 MSP → GFK May 25, 16:00 UTCMay 25, 16:40 UTC40m
2026-05-25 SKW184C CIU → MSP May 25, 14:15 UTCMay 25, 15:10 UTC55m
2026-05-25 SKW4539 LGA → OKC May 25, 12:10 UTCMay 25, 12:35 UTC25m
2026-05-24 SKW4338 PLN → DTW May 24, 14:40 UTCMay 24, 15:15 UTC35m
2026-05-24 SKW4338 PLN → DTW May 24, 13:05 UTCMay 24, 13:30 UTC25m
2026-05-24 SKW4244 ESC → DTW May 24, 10:20 UTCMay 24, 11:05 UTC45m
2026-05-24 SKW176R SEA → SFO May 24, 01:35 UTCMay 24, 02:15 UTC40m
2026-05-23 SKW4294 IMT → MSP May 23, 22:10 UTCMay 23, 23:05 UTC55m
2026-05-23 SKW4270 MSP → IMT May 23, 20:35 UTCMay 23, 21:10 UTC35m
2026-05-23 SKW4261 XWA → MSP May 23, 15:20 UTCMay 23, 19:10 UTC3h 51m
2026-05-23 SKW4291 MSP → BJI May 23, 02:55 UTCMay 23, 04:15 UTC1h 20m
2026-05-22 SKW4283 BJI → MSP May 22, 20:00 UTCMay 22, 20:30 UTC30m
2026-05-22 SKW4283 BJI → MSP May 22, 18:05 UTCMay 22, 18:30 UTC25m
2026-05-22 SKW4273 MSP → BRD May 22, 16:05 UTCMay 22, 16:30 UTC25m
2026-05-22 SKW4273 MSP → BRD May 22, 14:25 UTCMay 22, 14:50 UTC25m
2026-05-22 SKW4292 RHI → MSP May 22, 11:50 UTCMay 22, 12:35 UTC45m
2026-05-21 SKW4233 MSP → RHI May 21, 23:20 UTCMay 21, 23:42 UTC22m
2026-05-21 SKW4233 MSP → RHI May 21, 23:10 UTCMay 21, 23:35 UTC25m
2026-05-21 SKW4330 MSP → INL May 21, 20:55 UTCMay 21, 21:45 UTC50m
2026-05-21 SKW4330 MSP → INL May 21, 20:59 UTCMay 21, 21:42 UTC43m
2026-05-21 SKW4330 MSP → INL May 21, 18:15 UTCMay 21, 19:00 UTC45m
2026-05-21 SKW4329 MSP → GFK May 21, 16:01 UTCMay 21, 16:45 UTC45m
2026-05-21 SKW4329 MSP → GFK May 21, 14:00 UTCMay 21, 14:50 UTC50m
2026-05-21 SKW4292 RHI → MSP May 21, 11:50 UTCMay 21, 12:30 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 N658CA page for operator, model, and routing details .

Mode-S A8AAA5 frequently asked

What is Mode-S code A8AAA5?
A8AAA5 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N658CA.
Where is Mode-S A8AAA5 registered?
Mode-S code A8AAA5 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 A8AAA5 broadcasting right now?
No active broadcast right now. Last signal was 5h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A8AAA5, octal 52125245, decimal 11,053,733.
What flights does A8AAA5 operate?
Mode-S A8AAA5 has broadcast 20 distinct callsigns, including SKW4329, SKW4330, SKW4245, SKW4305, SKW4292.