Apparatus

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sensors Mode-S transponder

AC85EE

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N906EV · BOMBARDIER Regional Jet CRJ-200 · operated by SKYWEST AIRLINES INC

Hex
AC85EE
Octal
53102756
Decimal
11,306,478
Country
US
Tail
N906EV
Type
CRJ2
No current signal · last broadcast Jul 26, 20:40 UTC
Flights observed
594
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 20:40 UTC

Last known position

Most recent position reported by Mode-S AC85EE.

Country allocation

The ICAO 24-bit address AC85EE 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
SKW4674 SkyWest Airlines 8 2026-05-29
SKW5915 SkyWest Airlines 7 2026-07-26
SKW5344 SkyWest Airlines 7 2026-07-26
SKW5742 SkyWest Airlines 6 2026-05-29
SKW5617 SkyWest Airlines 6 2026-06-16
SKW5128 - 6 2026-07-12
SKW4718 - 6 2026-07-17
SKW4670 - 6 2026-06-17
SKW6059 - 5 2026-07-15
SKW5891 SkyWest Airlines 5 2026-05-13
SKW5813 SkyWest Airlines 5 2026-07-22
SKW5708 SkyWest Airlines 5 2026-05-19
SKW5249 SkyWest Airlines 5 2026-06-16
SKW5135 SkyWest Airlines 5 2026-07-26
SKW5072 SkyWest Airlines 5 2026-05-07
SKW5016 - 5 2026-07-02
SKW6058 SkyWest Airlines 4 2026-06-12
SKW6009 - 4 2026-06-16
SKW5926 SkyWest Airlines 4 2026-06-12
SKW5669 SkyWest Airlines 4 2026-05-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SKW5915 ORD → BNA Jul 26, 20:00 UTCJul 26, 20:40 UTC40m
2026-07-26 SKW5344 ORD → MSN Jul 26, 18:30 UTCJul 26, 19:10 UTC40m
2026-07-26 SKW5344 ORD → MSN Jul 26, 18:23 UTCJul 26, 19:08 UTC45m
2026-07-26 SKW5526 SFO → PHX Jul 26, 15:25 UTCJul 26, 16:35 UTC1h 10m
2026-07-26 SKW5375 ORD → MSN Jul 26, 13:05 UTCJul 26, 14:10 UTC1h 5m
2026-07-26 SKW5121 EAU → ORD Jul 26, 10:00 UTCJul 26, 10:55 UTC55m
2026-07-26 SKW5124 SUX → ORD Jul 26, 03:35 UTCJul 26, 04:20 UTC45m
2026-07-26 SKW5124 SUX → ORD Jul 26, 03:28 UTCJul 26, 04:22 UTC54m
2026-07-26 SKW5135 MCW → ORD Jul 26, 00:15 UTCJul 26, 01:05 UTC50m
2026-07-26 SKW5135 MCW → ORD Jul 26, 00:24 UTCJul 26, 00:50 UTC26m
2026-07-25 SKW6079 IAH → PAH Jul 25, 22:30 UTCJul 25, 23:25 UTC55m
2026-07-25 SKW5783 ORD → MSN Jul 25, 19:40 UTCJul 25, 20:05 UTC25m
2026-07-25 SKW4645 EUG → SFO Jul 25, 16:00 UTCJul 25, 16:25 UTC25m
2026-07-23 SKW6092 SFO → ROW Jul 23, 22:50 UTCJul 23, 23:55 UTC1h 5m
2026-07-22 SKW476T ORD → CAK Jul 22, 23:35 UTCJul 23, 00:30 UTC55m
2026-07-22 SKW6075 ROW → DEN Jul 22, 18:55 UTCJul 22, 20:15 UTC1h 20m
2026-07-22 SKW484C - Jul 22, 16:20 UTCJul 22, 17:50 UTC1h 30m
2026-07-22 SKW5272 LAX → SFO Jul 22, 13:40 UTCJul 22, 14:25 UTC45m
2026-07-22 SKW5272 LAX → SFO Jul 22, 13:39 UTCJul 22, 14:05 UTC26m
2026-07-22 SKW5595 SFO → OTH Jul 22, 11:30 UTCJul 22, 11:50 UTC20m
2026-07-22 SKW5595 SFO → OTH Jul 22, 11:19 UTCJul 22, 12:04 UTC45m
2026-07-22 SLW5957 - Jul 22, 03:00 UTCJul 22, 03:25 UTC25m
2026-07-22 SKW5813 SJC → DEN Jul 22, 01:45 UTCJul 22, 02:05 UTC20m
2026-07-22 SKW5813 SJC → DEN Jul 22, 01:33 UTCJul 22, 02:08 UTC35m
2026-07-21 SKW4633 BOI → LAX Jul 21, 22:40 UTCJul 21, 23:30 UTC50m
2026-07-21 SKW5633 - Jul 21, 21:10 UTCJul 21, 21:50 UTC40m
2026-07-21 SKW5915 ORD → BNA Jul 21, 19:05 UTCJul 21, 19:55 UTC50m
2026-07-21 SKW5344 - Jul 21, 17:00 UTCJul 21, 18:00 UTC1h 0m
2026-07-21 SKW5344 ORD → MBS Jul 21, 16:43 UTCJul 21, 17:46 UTC1h 3m
2026-07-21 SKW5402 MKE → ORD Jul 21, 14:00 UTCJul 21, 14:25 UTC25m
2026-07-21 SKW5402 MKE → ORD Jul 21, 14:07 UTCJul 21, 14:16 UTC9m
2026-07-21 SKW5581 ORD → BNA Jul 21, 12:15 UTCJul 21, 12:35 UTC20m
2026-07-19 SKW4808 MFR → SFO Jul 19, 23:45 UTCJul 20, 00:15 UTC30m
2026-07-19 SKW394J ORD → PIA Jul 19, 21:05 UTCJul 19, 21:35 UTC30m
2026-07-19 SKW5915 ORD → BNA Jul 19, 18:10 UTCJul 19, 19:15 UTC1h 5m
2026-07-19 SKW5915 ORD → BNA Jul 19, 18:15 UTCJul 19, 19:08 UTC53m
2026-07-19 SKW5344 - Jul 19, 16:35 UTCJul 19, 17:05 UTC30m
2026-07-19 SKW5997 - Jul 19, 14:50 UTCJul 19, 15:15 UTC25m
2026-07-19 SKW578A ORD → MLI Jul 19, 02:59 UTCJul 19, 03:10 UTC11m
2026-07-19 SKW578A - Jul 19, 02:45 UTCJul 19, 03:10 UTC25m
2026-07-18 SKW5213 CAK → ORD Jul 18, 14:05 UTCJul 18, 15:05 UTC1h 0m
2026-07-18 SKW476T ORD → CAK Jul 18, 01:39 UTCJul 18, 02:45 UTC1h 5m
2026-07-17 SKW4718 LNK → ORD Jul 17, 22:40 UTCJul 18, 00:10 UTC1h 30m
2026-07-17 SKW5244 - Jul 17, 19:09 UTCJul 17, 20:35 UTC1h 25m
2026-07-17 SKW5448 FAR → ORD Jul 17, 15:19 UTCJul 17, 16:30 UTC1h 11m
2026-07-17 SKW5448 - Jul 17, 15:00 UTCJul 17, 16:49 UTC1h 50m
2026-07-17 SKW4789 - Jul 17, 03:10 UTCJul 17, 04:39 UTC1h 30m
2026-07-17 SKW4681 - Jul 17, 00:14 UTCJul 17, 01:15 UTC1h 0m
2026-07-17 SKW4681 GRB → ORD Jul 17, 00:04 UTCJul 17, 00:47 UTC43m
2026-07-16 SKW5907 - Jul 16, 21:35 UTCJul 16, 22:10 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 N906EV page for operator, model, and routing details .

Mode-S AC85EE frequently asked

What is Mode-S code AC85EE?
AC85EE is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N906EV.
Where is Mode-S AC85EE registered?
Mode-S code AC85EE 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 AC85EE broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AC85EE, octal 53102756, decimal 11,306,478.
What flights does AC85EE operate?
Mode-S AC85EE has broadcast 20 distinct callsigns, including SKW4674, SKW5915, SKW5344, SKW5742, SKW5617.