Apparatus

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sensors Mode-S transponder

A99686

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N717EV · BOMBARDIER Regional Jet CRJ-700 · operated by SKYWEST AIRLINES INC

Hex
A99686
Octal
52313206
Decimal
11,114,118
Country
US
Tail
N717EV
Type
CRJ7
No current signal · last broadcast Jul 25, 18:20 UTC
Flights observed
673
Distinct callsigns
20
Country
US
Last broadcast
Jul 25, 18:20 UTC

Last known position

Most recent position reported by Mode-S A99686.

Country allocation

The ICAO 24-bit address A99686 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
SKW4318 - 51 2026-07-17
SKW4308 SkyWest Airlines 46 2026-07-24
SKW4246 SkyWest Airlines 42 2026-07-25
SKW4323 SkyWest Airlines 37 2026-07-23
SKW4312 - 37 2026-07-18
SKW4326 - 33 2026-07-18
SKW4324 - 33 2026-07-15
SKW4322 SkyWest Airlines 33 2026-07-24
SKW4260 SkyWest Airlines 33 2026-07-24
SKW4253 - 30 2026-07-16
SKW4327 SkyWest Airlines 29 2026-07-23
SKW4317 - 29 2026-07-18
SKW4230 SkyWest Airlines 28 2026-07-25
SKW4321 SkyWest Airlines 26 2026-07-23
SKW4325 SkyWest Airlines 25 2026-07-24
SKW4310 - 24 2026-07-14
SKW4320 - 23 2026-07-21
SKW4311 - 23 2026-07-18
SKW4234 SkyWest Airlines 22 2026-07-25
SKW4315 SkyWest Airlines 12 2026-05-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 SKW4309 SLC → WYS Jul 25, 17:50 UTCJul 25, 18:15 UTC25m
2026-07-25 SKW4309 SLC → WYS Jul 25, 16:10 UTCJul 25, 16:35 UTC25m
2026-07-25 SKW4230 GJT → SLC Jul 25, 14:10 UTCJul 25, 14:35 UTC25m
2026-07-25 SKW4234 SLC → GJT Jul 25, 03:05 UTCJul 25, 03:25 UTC20m
2026-07-25 SKW4246 GJT → SLC Jul 25, 01:25 UTCJul 25, 01:45 UTC20m
2026-07-24 SKW4246 GJT → SLC Jul 24, 23:25 UTCJul 24, 23:40 UTC15m
2026-07-24 SKW4260 XWA → MSP Jul 24, 21:40 UTCJul 24, 22:10 UTC30m
2026-07-24 SKW4260 XWA → MSP Jul 24, 19:35 UTCJul 24, 19:55 UTC20m
2026-07-24 SKW4308 SGU → SLC Jul 24, 17:35 UTCJul 24, 18:20 UTC45m
2026-07-24 SKW4308 SGU → SLC Jul 24, 15:45 UTCJul 24, 16:10 UTC25m
2026-07-24 SKW4322 TWF → SLC Jul 24, 12:20 UTCJul 24, 12:45 UTC25m
2026-07-24 SKW4325 SLC → TWF Jul 24, 03:35 UTCJul 24, 03:55 UTC20m
2026-07-24 SKW4246 GJT → SLC Jul 24, 01:05 UTCJul 24, 01:40 UTC35m
2026-07-24 SKW4246 GJT → SLC Jul 24, 01:08 UTCJul 24, 01:36 UTC28m
2026-07-23 SKW4246 GJT → SLC Jul 23, 23:35 UTCJul 24, 00:10 UTC35m
2026-07-23 SKW4321 PLN → DTW Jul 23, 21:45 UTCJul 23, 22:30 UTC45m
2026-07-23 SKW4321 PLN → DTW Jul 23, 21:30 UTCJul 23, 22:19 UTC49m
2026-07-23 SKW4321 PLN → DTW Jul 23, 19:35 UTCJul 23, 20:05 UTC30m
2026-07-23 SKW4323 SLC → TWF Jul 23, 17:45 UTCJul 23, 18:10 UTC25m
2026-07-23 SKW4323 SLC → TWF Jul 23, 16:05 UTCJul 23, 16:25 UTC20m
2026-07-23 SKW4322 - Jul 23, 12:20 UTCJul 23, 12:45 UTC25m
2026-07-23 SKW4322 TWF → SLC Jul 23, 12:17 UTCJul 23, 12:43 UTC26m
2026-07-23 SKW4327 SLC → PIH Jul 23, 03:35 UTCJul 23, 04:00 UTC25m
2026-07-23 SKW4327 SLC → PIH Jul 23, 01:10 UTCJul 23, 01:35 UTC25m
2026-07-22 SKW4327 SLC → PIH Jul 22, 23:35 UTCJul 23, 00:00 UTC25m
2026-07-22 SKW4321 - Jul 22, 21:40 UTCJul 22, 22:30 UTC50m
2026-07-22 SKW4321 SGU → SLC Jul 22, 21:33 UTCJul 22, 22:16 UTC43m
2026-07-22 SKW4321 - Jul 22, 19:50 UTCJul 22, 20:25 UTC35m
2026-07-22 SKW4323 SLC → TWF Jul 22, 17:50 UTCJul 22, 18:15 UTC25m
2026-07-22 SKW4323 SLC → TWF Jul 22, 17:40 UTCJul 22, 18:14 UTC34m
2026-07-22 SKW4323 SLC → TWF Jul 22, 16:05 UTCJul 22, 16:25 UTC20m
2026-07-22 SKW4322 - Jul 22, 12:25 UTCJul 22, 12:55 UTC30m
2026-07-22 SKW4322 TWF → SLC Jul 22, 12:20 UTCJul 22, 12:53 UTC33m
2026-07-22 SKW4325 SLC → TWF Jul 22, 04:05 UTCJul 22, 04:25 UTC20m
2026-07-21 SKW4320 - Jul 21, 19:35 UTCJul 21, 20:05 UTC30m
2026-07-21 SKW4320 - Jul 21, 17:20 UTCJul 21, 17:45 UTC25m
2026-07-21 SKW4322 - Jul 21, 12:25 UTCJul 21, 12:50 UTC25m
2026-07-21 SKW4325 SLC → TWF Jul 21, 03:40 UTCJul 21, 04:00 UTC20m
2026-07-21 SKW4246 GJT → SLC Jul 21, 01:35 UTCJul 21, 01:55 UTC20m
2026-07-20 SKW4246 GJT → SLC Jul 20, 23:15 UTCJul 20, 23:35 UTC20m
2026-07-20 SKW4260 XWA → MSP Jul 20, 21:45 UTCJul 20, 22:15 UTC30m
2026-07-20 SKW4260 XWA → MSP Jul 20, 21:35 UTCJul 20, 22:10 UTC35m
2026-07-20 SKW4260 XWA → MSP Jul 20, 19:35 UTCJul 20, 19:55 UTC20m
2026-07-20 SKW4308 - Jul 20, 17:45 UTCJul 20, 18:25 UTC40m
2026-07-20 SKW4308 - Jul 20, 15:45 UTCJul 20, 16:05 UTC20m
2026-07-20 SKW4322 - Jul 20, 12:25 UTCJul 20, 12:50 UTC25m
2026-07-20 SKW4235 SGU → SLC Jul 20, 03:30 UTCJul 20, 03:50 UTC20m
2026-07-20 SKW4246 - Jul 20, 01:25 UTCJul 20, 01:40 UTC15m
2026-07-19 SKW4246 - Jul 19, 23:15 UTCJul 19, 23:30 UTC15m
2026-07-19 SKW4260 XWA → MSP Jul 19, 21:35 UTCJul 19, 22:05 UTC30m

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 N717EV page for operator, model, and routing details .

Mode-S A99686 frequently asked

What is Mode-S code A99686?
A99686 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N717EV.
Where is Mode-S A99686 registered?
Mode-S code A99686 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 A99686 broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 18:20 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A99686, octal 52313206, decimal 11,114,118.
What flights does A99686 operate?
Mode-S A99686 has broadcast 20 distinct callsigns, including SKW4318, SKW4308, SKW4246, SKW4323, SKW4312.