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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 3h ago
Flights observed
581
Distinct callsigns
20
Country
US
Last broadcast
3h 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
SKW4318 - 45 2026-06-25
SKW4308 - 39 2026-07-09
SKW4312 - 34 2026-07-08
SKW4323 - 32 2026-07-08
SKW4324 - 31 2026-07-13
SKW4246 - 29 2026-07-10
SKW4326 - 28 2026-07-12
SKW4253 - 28 2026-06-22
SKW4317 - 27 2026-07-11
SKW4230 - 27 2026-07-11
SKW4327 - 26 2026-07-09
SKW4260 - 26 2026-07-09
SKW4310 - 24 2026-07-14
SKW4322 - 23 2026-07-01
SKW4325 - 21 2026-07-14
SKW4320 - 21 2026-07-03
SKW4311 - 21 2026-07-12
SKW4234 - 21 2026-07-09
SKW4321 - 20 2026-07-08
SKW4315 SkyWest Airlines 12 2026-05-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 SKW4325 - Jul 14, 03:25 UTCJul 14, 03:45 UTC20m
2026-07-14 SKW4310 - Jul 14, 01:20 UTCJul 14, 01:40 UTC20m
2026-07-13 SKW4310 - Jul 13, 23:25 UTCJul 13, 23:45 UTC20m
2026-07-13 SKW4324 - Jul 13, 21:35 UTCJul 13, 22:05 UTC30m
2026-07-13 SKW4324 - Jul 13, 20:00 UTCJul 13, 20:20 UTC20m
2026-07-13 SKW4310 - Jul 13, 01:40 UTCJul 13, 01:55 UTC15m
2026-07-13 SKW4310 CDC → SLC Jul 13, 01:22 UTCJul 13, 01:51 UTC29m
2026-07-13 SKW4310 - Jul 13, 00:05 UTCJul 13, 00:25 UTC20m
2026-07-12 SKW4324 - Jul 12, 22:45 UTCJul 12, 23:15 UTC30m
2026-07-12 SKW4324 - Jul 12, 19:50 UTCJul 12, 20:10 UTC20m
2026-07-12 SKW4326 - Jul 12, 17:50 UTCJul 12, 18:20 UTC30m
2026-07-12 SKW4326 PIH → SLC Jul 12, 17:43 UTCJul 12, 18:18 UTC35m
2026-07-12 SKW4326 - Jul 12, 16:05 UTCJul 12, 16:25 UTC20m
2026-07-12 SKW4311 - Jul 12, 13:40 UTCJul 12, 14:05 UTC25m
2026-07-11 SKW4317 - Jul 11, 23:45 UTCJul 12, 00:05 UTC20m
2026-07-11 SKW4309 WYS → SLC Jul 11, 17:44 UTCJul 11, 18:13 UTC29m
2026-07-11 SKW4309 - Jul 11, 15:50 UTCJul 11, 16:20 UTC30m
2026-07-11 SKW4230 - Jul 11, 13:55 UTCJul 11, 14:20 UTC25m
2026-07-11 SKW4235 - Jul 11, 03:01 UTCJul 11, 03:10 UTC10m
2026-07-11 SKW4310 CDC → SLC Jul 11, 01:06 UTCJul 11, 01:53 UTC47m
2026-07-10 SKW4310 - Jul 10, 23:25 UTCJul 10, 23:45 UTC20m
2026-07-10 SKW4324 - Jul 10, 21:35 UTCJul 10, 22:05 UTC30m
2026-07-10 SKW4324 - Jul 10, 19:50 UTCJul 10, 20:15 UTC25m
2026-07-10 SKW4326 - Jul 10, 18:00 UTCJul 10, 18:25 UTC25m
2026-07-10 SKW4326 PIH → SLC Jul 10, 17:45 UTCJul 10, 18:24 UTC39m
2026-07-10 SKW4326 - Jul 10, 16:10 UTCJul 10, 16:35 UTC25m
2026-07-10 SKW4311 - Jul 10, 13:45 UTCJul 10, 14:15 UTC30m
2026-07-10 SKW4317 - Jul 10, 03:35 UTCJul 10, 04:00 UTC25m
2026-07-10 SKW4246 - Jul 10, 01:15 UTCJul 10, 01:40 UTC25m
2026-07-10 SKW4246 GJT → SLC Jul 10, 00:54 UTCJul 10, 01:40 UTC46m
2026-07-09 SKW4246 - Jul 9, 23:20 UTCJul 9, 23:35 UTC15m
2026-07-09 SKW4260 - Jul 9, 21:25 UTCJul 9, 21:55 UTC30m
2026-07-09 SKW4260 - Jul 9, 19:30 UTCJul 9, 19:50 UTC20m
2026-07-09 SKW4308 - Jul 9, 17:40 UTCJul 9, 18:20 UTC40m
2026-07-09 SKW4308 - Jul 9, 15:50 UTCJul 9, 16:20 UTC30m
2026-07-09 SKW4230 - Jul 9, 14:10 UTCJul 9, 14:35 UTC25m
2026-07-09 SKW4234 - Jul 9, 03:00 UTCJul 9, 03:15 UTC15m
2026-07-09 SKW4234 SLC → GJT Jul 9, 03:03 UTCJul 9, 03:30 UTC27m
2026-07-09 SKW4327 - Jul 9, 01:20 UTCJul 9, 01:55 UTC35m
2026-07-09 SKW4327 PIH → SLC Jul 9, 01:03 UTCJul 9, 01:53 UTC50m
2026-07-08 SKW4327 - Jul 8, 23:45 UTCJul 9, 00:05 UTC20m
2026-07-08 SKW4321 - Jul 8, 21:40 UTCJul 8, 22:25 UTC45m
2026-07-08 SKW4321 - Jul 8, 19:50 UTCJul 8, 20:25 UTC35m
2026-07-08 SKW4323 - Jul 8, 17:50 UTCJul 8, 18:20 UTC30m
2026-07-08 SKW4323 - Jul 8, 16:05 UTCJul 8, 16:25 UTC20m
2026-07-08 SKW101A - Jul 8, 12:00 UTCJul 8, 12:40 UTC40m
2026-07-08 SKW101A SGU → SLC Jul 8, 12:02 UTCJul 8, 12:33 UTC31m
2026-07-08 SKW4279 - Jul 8, 02:55 UTCJul 8, 03:25 UTC30m
2026-07-08 SKW4312 BTM → SLC Jul 8, 00:15 UTCJul 8, 01:03 UTC48m
2026-07-07 SKW4312 - Jul 7, 21:40 UTCJul 7, 22:10 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 3h 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 SKW4318, SKW4308, SKW4312, SKW4323, SKW4324.