Apparatus

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sensors Mode-S transponder

A9B2E0

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N724EV · BOMBARDIER Regional Jet CRJ-700 · operated by SKYWEST AIRLINES INC

Hex
A9B2E0
Octal
52331340
Decimal
11,121,376
Country
US
Tail
N724EV
Type
CRJ7
No current signal · last broadcast Jul 26, 22:00 UTC
Flights observed
703
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:00 UTC

Last known position

Most recent position reported by Mode-S A9B2E0.

Country allocation

The ICAO 24-bit address A9B2E0 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
SKW4321 - 54 2026-07-17
SKW4323 - 49 2026-07-17
SKW4326 SkyWest Airlines 48 2026-07-26
SKW4324 SkyWest Airlines 41 2026-07-26
SKW4310 SkyWest Airlines 41 2026-07-25
SKW4246 - 38 2026-07-14
SKW4318 - 37 2026-07-18
SKW4327 - 35 2026-07-18
SKW4253 - 34 2026-07-18
SKW4260 SkyWest Airlines 29 2026-07-23
SKW4317 SkyWest Airlines 28 2026-07-25
SKW4234 SkyWest Airlines 28 2026-07-26
SKW4322 - 25 2026-07-16
SKW4311 SkyWest Airlines 24 2026-07-25
SKW4325 - 23 2026-07-16
SKW4308 SkyWest Airlines 23 2026-07-23
SKW4230 SkyWest Airlines 22 2026-07-26
SKW4312 - 21 2026-07-16
SKW4320 - 19 2026-07-20
SKW4237 SkyWest Airlines 15 2026-07-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SKW4324 SLC → TWF Jul 26, 21:40 UTCJul 26, 22:00 UTC20m
2026-07-26 SKW4324 SLC → TWF Jul 26, 20:10 UTCJul 26, 20:30 UTC20m
2026-07-26 SKW4326 SLC → PIH Jul 26, 18:10 UTCJul 26, 18:35 UTC25m
2026-07-26 SKW4326 SLC → PIH Jul 26, 16:15 UTCJul 26, 16:45 UTC30m
2026-07-26 SKW4230 GJT → SLC Jul 26, 14:00 UTCJul 26, 14:20 UTC20m
2026-07-26 SKW4234 SLC → GJT Jul 26, 02:55 UTCJul 26, 03:10 UTC15m
2026-07-25 SKW4326 SLC → PIH Jul 25, 21:40 UTCJul 26, 01:10 UTC3h 30m
2026-07-25 SKW4326 SLC → PIH Jul 25, 17:55 UTCJul 25, 18:25 UTC30m
2026-07-25 SKW4326 SLC → PIH Jul 25, 16:15 UTCJul 25, 16:40 UTC25m
2026-07-25 SKW4311 EKO → SLC Jul 25, 13:35 UTCJul 25, 14:00 UTC25m
2026-07-25 SKW4317 SLC → EKO Jul 25, 03:40 UTCJul 25, 04:05 UTC25m
2026-07-25 SKW4317 SLC → EKO Jul 25, 03:38 UTCJul 25, 04:09 UTC31m
2026-07-25 SKW4310 SLC → CDC Jul 25, 02:10 UTCJul 25, 02:35 UTC25m
2026-07-25 SKW4310 SLC → CDC Jul 25, 01:06 UTCJul 25, 02:30 UTC1h 24m
2026-07-24 SKW4310 SLC → CDC Jul 24, 23:40 UTCJul 25, 00:00 UTC20m
2026-07-24 SKW4324 SLC → TWF Jul 24, 21:40 UTCJul 24, 22:10 UTC30m
2026-07-24 SKW4324 SLC → TWF Jul 24, 20:05 UTCJul 24, 20:25 UTC20m
2026-07-24 SKW4326 SLC → PIH Jul 24, 18:00 UTCJul 24, 18:30 UTC30m
2026-07-24 SKW4326 SLC → PIH Jul 24, 16:10 UTCJul 24, 16:35 UTC25m
2026-07-23 SKW4260 XWA → MSP Jul 23, 21:55 UTCJul 23, 22:30 UTC35m
2026-07-23 SKW4260 XWA → MSP Jul 23, 20:05 UTCJul 23, 20:30 UTC25m
2026-07-23 SKW4308 SGU → SLC Jul 23, 18:05 UTCJul 23, 19:05 UTC1h 0m
2026-07-23 SKW4308 SGU → SLC Jul 23, 16:30 UTCJul 23, 17:10 UTC40m
2026-07-23 SKW4311 EKO → SLC Jul 23, 14:35 UTCJul 23, 15:15 UTC40m
2026-07-22 SKW4317 SLC → EKO Jul 22, 23:40 UTCJul 23, 00:00 UTC20m
2026-07-22 SKW4308 SGU → SLC Jul 22, 17:35 UTCJul 22, 18:20 UTC45m
2026-07-22 SKW4308 SGU → SLC Jul 22, 15:50 UTCJul 22, 16:15 UTC25m
2026-07-22 SKW4311 EKO → SLC Jul 22, 13:45 UTCJul 22, 14:15 UTC30m
2026-07-21 SKW4317 SLC → EKO Jul 21, 23:40 UTCJul 22, 00:00 UTC20m
2026-07-21 SKW4237 PLN → DTW Jul 21, 15:00 UTCJul 21, 15:50 UTC50m
2026-07-21 SKW4263 - Jul 21, 01:40 UTCJul 21, 02:10 UTC30m
2026-07-20 SKW4320 - Jul 20, 19:30 UTCJul 20, 20:05 UTC35m
2026-07-20 SKW4320 - Jul 20, 17:40 UTCJul 20, 18:05 UTC25m
2026-07-20 SKW4237 PLN → DTW Jul 20, 15:00 UTCJul 20, 15:45 UTC45m
2026-07-19 SKW4263 SLC → CDC Jul 19, 23:35 UTCJul 20, 00:05 UTC30m
2026-07-19 SKW4320 - Jul 19, 20:30 UTCJul 19, 21:05 UTC35m
2026-07-19 SKW4320 - Jul 19, 18:50 UTCJul 19, 19:15 UTC25m
2026-07-18 SKW4253 - Jul 18, 19:25 UTCJul 18, 20:05 UTC40m
2026-07-18 SKW4253 - Jul 18, 17:55 UTCJul 18, 18:25 UTC30m
2026-07-18 SKW4318 - Jul 18, 15:45 UTCJul 18, 16:10 UTC25m
2026-07-18 SKW4318 CDC → SLC Jul 18, 15:32 UTCJul 18, 16:05 UTC33m
2026-07-18 SKW4318 - Jul 18, 13:55 UTCJul 18, 14:10 UTC15m
2026-07-18 SKW101A - Jul 18, 12:05 UTCJul 18, 12:45 UTC40m
2026-07-18 SKW4279 ESC → MSP Jul 18, 02:55 UTCJul 18, 03:35 UTC40m
2026-07-18 SKW4327 - Jul 18, 01:00 UTCJul 18, 01:25 UTC25m
2026-07-17 SKW4327 - Jul 17, 23:55 UTCJul 18, 00:15 UTC20m
2026-07-17 SKW4321 - Jul 17, 22:05 UTCJul 17, 22:45 UTC40m
2026-07-17 SKW4321 - Jul 17, 19:49 UTCJul 17, 20:29 UTC40m
2026-07-17 SKW4323 - Jul 17, 17:55 UTCJul 17, 18:29 UTC35m
2026-07-17 SKW4323 - Jul 17, 16:15 UTCJul 17, 16:40 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 N724EV page for operator, model, and routing details .

Mode-S A9B2E0 frequently asked

What is Mode-S code A9B2E0?
A9B2E0 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N724EV.
Where is Mode-S A9B2E0 registered?
Mode-S code A9B2E0 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 A9B2E0 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A9B2E0, octal 52331340, decimal 11,121,376.
What flights does A9B2E0 operate?
Mode-S A9B2E0 has broadcast 20 distinct callsigns, including SKW4321, SKW4323, SKW4326, SKW4324, SKW4310.