Apparatus

Try JFK, AAL1290, BAW, or N225AN.

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 7h ago
Flights observed
262
Distinct callsigns
20
Country
US
Last broadcast
7h ago

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
SKW4253 SkyWest Airlines 26 2026-05-26
SKW4308 SkyWest Airlines 22 2026-05-29
SKW4318 SkyWest Airlines 19 2026-05-20
SKW4312 SkyWest Airlines 17 2026-05-27
SKW4260 SkyWest Airlines 15 2026-05-28
SKW4322 SkyWest Airlines 13 2026-05-19
SKW4317 SkyWest Airlines 13 2026-05-29
SKW4230 SkyWest Airlines 13 2026-05-24
SKW4323 SkyWest Airlines 12 2026-05-28
SKW4315 SkyWest Airlines 12 2026-05-15
SKW4311 SkyWest Airlines 12 2026-05-29
SKW4325 SkyWest Airlines 11 2026-05-19
SKW4246 SkyWest Airlines 11 2026-05-27
SKW4327 SkyWest Airlines 10 2026-05-29
SKW4263 SkyWest Airlines 9 2026-05-25
SKW4234 SkyWest Airlines 9 2026-05-24
SKW4237 SkyWest Airlines 8 2026-05-26
SKW4324 SkyWest Airlines 7 2026-05-29
SKW4310 SkyWest Airlines 6 2026-05-17
SKW4326 SkyWest Airlines 5 2026-05-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 SKW4324 SLC → TWF May 29, 19:50 UTCMay 29, 20:05 UTC15m
2026-05-29 SKW4308 SGU → SLC May 29, 17:35 UTCMay 29, 18:10 UTC35m
2026-05-29 SKW4308 SGU → SLC May 29, 15:45 UTCMay 29, 16:05 UTC20m
2026-05-29 SKW4311 EKO → SLC May 29, 13:40 UTCMay 29, 14:10 UTC30m
2026-05-29 SKW4317 SLC → EKO May 29, 03:35 UTCMay 29, 03:55 UTC20m
2026-05-29 SKW4327 SLC → PIH May 29, 01:25 UTCMay 29, 02:00 UTC35m
2026-05-28 SKW4327 SLC → PIH May 28, 23:30 UTCMay 28, 23:50 UTC20m
2026-05-28 SKW4260 XWA → MSP May 28, 21:40 UTCMay 28, 22:10 UTC30m
2026-05-28 SKW4260 XWA → MSP May 28, 19:35 UTCMay 28, 19:55 UTC20m
2026-05-28 SKW4323 SLC → TWF May 28, 17:45 UTCMay 28, 18:10 UTC25m
2026-05-28 SKW4323 SLC → TWF May 28, 16:00 UTCMay 28, 16:15 UTC15m
2026-05-28 SKW4311 EKO → SLC May 28, 13:30 UTCMay 28, 14:05 UTC35m
2026-05-28 SKW4311 EKO → SLC May 28, 13:29 UTCMay 28, 13:59 UTC30m
2026-05-28 SKW4317 SLC → EKO May 28, 03:45 UTCMay 28, 04:00 UTC15m
2026-05-28 SKW4317 SLC → EKO May 28, 03:40 UTCMay 28, 04:09 UTC29m
2026-05-28 SKW4327 SLC → PIH May 28, 01:00 UTCMay 28, 01:25 UTC25m
2026-05-27 SKW4327 SLC → PIH May 27, 23:35 UTCMay 27, 23:55 UTC20m
2026-05-27 SKW4312 SLC → BTM May 27, 19:45 UTCMay 27, 22:40 UTC2h 55m
2026-05-27 SKW4323 SLC → TWF May 27, 17:45 UTCMay 27, 18:10 UTC25m
2026-05-27 SKW4323 SLC → TWF May 27, 16:10 UTCMay 27, 16:30 UTC20m
2026-05-27 SKW4311 EKO → SLC May 27, 13:45 UTCMay 27, 14:10 UTC25m
2026-05-27 SKW4317 SLC → EKO May 27, 03:39 UTCMay 27, 03:59 UTC20m
2026-05-27 SKW4246 GJT → SLC May 27, 01:14 UTCMay 27, 01:54 UTC40m
2026-05-26 SKW4246 GJT → SLC May 26, 23:25 UTCMay 27, 00:10 UTC45m
2026-05-26 SKW4253 SLC → SGU May 26, 19:50 UTCMay 26, 20:45 UTC55m
2026-05-26 SKW4253 SLC → SGU May 26, 17:39 UTCMay 26, 17:59 UTC20m
2026-05-26 SKW4237 PLN → DTW May 26, 15:14 UTCMay 26, 16:00 UTC45m
2026-05-26 SKW4237 PLN → DTW May 26, 15:02 UTCMay 26, 15:56 UTC54m
2026-05-25 SKW4263 SLC → SGU May 25, 23:35 UTCMay 25, 23:54 UTC20m
2026-05-25 SKW4312 SLC → BTM May 25, 19:30 UTCMay 25, 22:34 UTC3h 5m
2026-05-25 SKW4237 PLN → DTW May 25, 15:05 UTCMay 25, 15:50 UTC45m
2026-05-24 SKW4263 SLC → SGU May 24, 23:35 UTCMay 24, 23:46 UTC11m
2026-05-24 SKW4312 SLC → BTM May 24, 19:30 UTCMay 24, 20:00 UTC30m
2026-05-24 SKW4323 SLC → TWF May 24, 17:45 UTCMay 24, 18:15 UTC30m
2026-05-24 SKW4323 SLC → TWF May 24, 16:00 UTCMay 24, 16:20 UTC20m
2026-05-24 SKW4230 GJT → SLC May 24, 13:45 UTCMay 24, 14:25 UTC40m
2026-05-24 SKW4230 GJT → SLC May 24, 13:54 UTCMay 24, 14:24 UTC30m
2026-05-24 SKW4234 SLC → GJT May 24, 03:30 UTCMay 24, 04:00 UTC30m
2026-05-24 SKW4234 SLC → GJT May 24, 03:31 UTCMay 24, 04:01 UTC30m
2026-05-24 SKW4613 ATL → DTW May 24, 02:05 UTCMay 24, 02:40 UTC35m
2026-05-22 SKW4263 SLC → SGU May 22, 23:30 UTCMay 23, 00:10 UTC40m
2026-05-22 SKW4312 SLC → BTM May 22, 19:30 UTCMay 22, 22:20 UTC2h 50m
2026-05-22 SKW4308 SGU → SLC May 22, 18:00 UTCMay 22, 18:40 UTC40m
2026-05-22 SKW4308 SGU → SLC May 22, 15:45 UTCMay 22, 16:05 UTC20m
2026-05-21 SKW4320 SLC → WYS May 21, 23:35 UTCMay 22, 00:05 UTC30m
2026-05-21 SKW4320 SLC → WYS May 21, 17:25 UTCMay 21, 17:50 UTC25m
2026-05-21 SKW4237 PLN → DTW May 21, 15:10 UTCMay 21, 15:45 UTC35m
2026-05-20 SKW4263 SLC → SGU May 20, 23:45 UTCMay 21, 00:00 UTC15m
2026-05-20 SKW4312 SLC → BTM May 20, 19:30 UTCMay 20, 22:15 UTC2h 45m
2026-05-20 SKW4318 CDC → SLC May 20, 15:55 UTCMay 20, 16:20 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 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 7h ago.
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 SKW4253, SKW4308, SKW4318, SKW4312, SKW4260.