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 Jun 4, 15:20 UTC
Flights observed
308
Distinct callsigns
20
Country
US
Last broadcast
Jun 4, 15:20 UTC

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 27 2026-06-03
SKW4330 SkyWest Airlines 24 2026-06-02
SKW4245 SkyWest Airlines 17 2026-05-30
SKW4305 SkyWest Airlines 11 2026-05-28
SKW4292 SkyWest Airlines 11 2026-05-22
SKW4274 SkyWest Airlines 11 2026-05-20
SKW4331 SkyWest Airlines 8 2026-06-02
SKW4291 SkyWest Airlines 8 2026-05-23
SKW4284 SkyWest Airlines 8 2026-06-03
SKW4233 SkyWest Airlines 8 2026-05-21
SKW4283 SkyWest Airlines 7 2026-05-30
SKW4238 SkyWest Airlines 7 2026-06-01
SKW184C SkyWest Airlines 7 2026-05-27
SKW145H SkyWest Airlines 7 2026-05-26
SKW4336 SkyWest Airlines 6 2026-05-31
SKW4328 SkyWest Airlines 6 2026-06-03
SKW4303 SkyWest Airlines 6 2026-05-19
SKW4298 SkyWest Airlines 6 2026-05-29
SKW4266 SkyWest Airlines 6 2026-05-16
SKW4244 SkyWest Airlines 6 2026-05-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-04 SKW4185 CVG → SLC Jun 4, 14:45 UTCJun 4, 15:20 UTC35m
2026-06-04 SKW4185 CVG → SLC Jun 4, 13:59 UTCJun 4, 15:18 UTC1h 19m
2026-06-04 SKW4185 CVG → SLC Jun 4, 13:40 UTCJun 4, 14:40 UTC1h 0m
2026-06-04 SKW4289 MSP → XWA Jun 4, 01:40 UTCJun 4, 12:40 UTC11h 0m
2026-06-03 SKW4284 XWA → MSP Jun 3, 18:10 UTCJun 3, 22:15 UTC4h 5m
2026-06-03 SKW4329 MSP → GFK Jun 3, 15:55 UTCJun 3, 16:45 UTC50m
2026-06-03 SKW4329 MSP → GFK Jun 3, 14:10 UTCJun 3, 14:55 UTC45m
2026-06-03 SKW4328 GFK → MSP Jun 3, 11:15 UTCJun 3, 12:00 UTC45m
2026-06-03 SKW4328 GFK → MSP Jun 3, 11:07 UTCJun 3, 11:55 UTC48m
2026-06-03 SKW4332 MSP → BJI Jun 3, 03:00 UTCJun 3, 03:40 UTC40m
2026-06-03 SKW4332 MSP → BJI Jun 3, 03:09 UTCJun 3, 03:40 UTC31m
2026-06-02 SKW4330 MSP → INL Jun 2, 21:00 UTCJun 2, 21:50 UTC50m
2026-06-02 SKW4330 MSP → INL Jun 2, 18:15 UTCJun 2, 19:00 UTC45m
2026-06-02 SKW4329 MSP → GFK Jun 2, 16:00 UTCJun 2, 16:45 UTC45m
2026-06-02 SKW4329 MSP → GFK Jun 2, 13:55 UTCJun 2, 14:40 UTC45m
2026-06-02 SKW4328 GFK → MSP Jun 2, 10:10 UTCJun 2, 10:55 UTC45m
2026-06-02 SKW4332 MSP → BJI Jun 2, 03:15 UTCJun 2, 03:55 UTC40m
2026-06-02 SKW4331 MSP → GFK Jun 2, 00:20 UTCJun 2, 01:05 UTC45m
2026-06-01 SKW4331 MSP → GFK Jun 1, 22:00 UTCJun 1, 22:40 UTC40m
2026-06-01 SKW4262 MSP → ABR Jun 1, 20:39 UTCJun 1, 20:48 UTC9m
2026-06-01 SKW4262 MSP → ABR Jun 1, 20:15 UTCJun 1, 21:00 UTC45m
2026-06-01 SKW4262 MSP → ABR Jun 1, 18:35 UTCJun 1, 19:10 UTC35m
2026-06-01 SKW4238 ABR → MSP Jun 1, 16:55 UTCJun 1, 17:35 UTC40m
2026-06-01 SKW125X LAX → OAK Jun 1, 15:30 UTCJun 1, 15:50 UTC20m
2026-06-01 SKW125X LAX → OAK Jun 1, 15:10 UTCJun 1, 15:50 UTC40m
2026-05-31 SKW4284 XWA → MSP May 31, 18:05 UTCMay 31, 22:10 UTC4h 5m
2026-05-31 SKW4273 MSP → BRD May 31, 16:00 UTCMay 31, 16:20 UTC20m
2026-05-31 SKW4273 MSP → BRD May 31, 14:20 UTCMay 31, 14:40 UTC20m
2026-05-31 SKW4336 BRD → MSP May 31, 11:50 UTCMay 31, 12:15 UTC25m
2026-05-31 SKW4336 BRD → MSP May 31, 12:00 UTCMay 31, 12:23 UTC23m
2026-05-30 SKW4301 BRD → MSP May 30, 23:15 UTCMay 30, 23:35 UTC20m
2026-05-30 SKW4283 BJI → MSP May 30, 20:30 UTCMay 30, 21:00 UTC30m
2026-05-30 SKW4283 BJI → MSP May 30, 19:59 UTCMay 30, 21:00 UTC1h 1m
2026-05-30 SKW4283 BJI → MSP May 30, 18:15 UTCMay 30, 18:40 UTC25m
2026-05-30 SKW4245 INL → MSP May 30, 16:40 UTCMay 30, 17:10 UTC30m
2026-05-30 SKW4245 INL → MSP May 30, 16:13 UTCMay 30, 17:05 UTC52m
2026-05-30 SKW4245 INL → MSP May 30, 14:30 UTCMay 30, 15:00 UTC30m
2026-05-30 SKW4296 XWA → MSP May 30, 11:30 UTCMay 30, 12:30 UTC1h 0m
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

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 Jun 4, 15:20 UTC.
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.