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sensors Mode-S transponder

AA75C6

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N773SK · BOMBARDIER Regional Jet CRJ-700 · operated by SKYWEST AIRLINES INC

Hex
AA75C6
Octal
52472706
Decimal
11,171,270
Country
US
Tail
N773SK
Type
CRJ7
No current signal · last broadcast Jul 26, 20:20 UTC
Flights observed
549
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 20:20 UTC

Last known position

Most recent position reported by Mode-S AA75C6.

Country allocation

The ICAO 24-bit address AA75C6 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
SKW4685 - 10 2026-06-26
SKW5661 SkyWest Airlines 7 2026-07-21
SKW5357 - 7 2026-07-20
SKW4639 - 7 2026-06-28
SKW5878 - 6 2026-07-10
SKW5851 - 6 2026-06-22
SKW5516 - 6 2026-07-05
SKW5250 SkyWest Airlines 6 2026-07-05
SKW5233 - 6 2026-07-12
SKW4709 - 6 2026-07-17
SKW6031 SkyWest Airlines 5 2026-07-25
SKW5982 - 5 2026-07-01
SKW5896 - 5 2026-07-02
SKW5869 - 5 2026-06-20
SKW5622 SkyWest Airlines 5 2026-07-21
SKW5377 SkyWest Airlines 5 2026-07-25
SKW5348 SkyWest Airlines 5 2026-07-22
SKW4781 - 5 2026-06-30
SKW4738 SkyWest Airlines 5 2026-07-24
SKW4636 - 5 2026-07-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SKW4807 SFO → BUR Jul 26, 18:55 UTCJul 26, 20:15 UTC1h 20m
2026-07-26 SKW5333 ORD → MSN Jul 26, 16:25 UTCJul 26, 17:35 UTC1h 10m
2026-07-25 SKW5377 HPN → ORD Jul 25, 21:55 UTCJul 25, 22:45 UTC50m
2026-07-25 SKW6031 DEN → SAF Jul 25, 19:50 UTCJul 25, 20:35 UTC45m
2026-07-25 SKW5791 LBB → DEN Jul 25, 17:35 UTCJul 25, 18:45 UTC1h 10m
2026-07-25 SKW6099 DSM → MKE Jul 25, 15:20 UTCJul 25, 16:05 UTC45m
2026-07-25 SKW5564 DCA → ORD Jul 25, 13:35 UTCJul 25, 14:20 UTC45m
2026-07-25 SKW5564 DCA → ORD Jul 25, 13:20 UTCJul 25, 14:19 UTC59m
2026-07-25 SKW6025 SLC → DEN Jul 25, 03:05 UTCJul 25, 03:35 UTC30m
2026-07-24 SKW5805 SNA → SFO Jul 24, 22:00 UTCJul 24, 22:30 UTC30m
2026-07-24 SKW5556 PSC → SFO Jul 24, 19:40 UTCJul 24, 20:05 UTC25m
2026-07-24 SKW5114 DEN → LBL Jul 24, 16:50 UTCJul 24, 18:00 UTC1h 10m
2026-07-24 SKW483R DEN → SUX Jul 24, 14:30 UTCJul 24, 15:25 UTC55m
2026-07-24 SKW4738 SLC → ORD Jul 24, 11:35 UTCJul 24, 12:30 UTC55m
2026-07-24 SKW700V DEN → DVL Jul 24, 02:55 UTCJul 24, 03:55 UTC1h 0m
2026-07-24 SKW700V DEN → DVL Jul 24, 02:59 UTCJul 24, 04:13 UTC1h 14m
2026-07-22 SKW5528 - Jul 22, 21:25 UTCJul 22, 22:10 UTC45m
2026-07-22 SKW5302 ORD → CVG Jul 22, 18:05 UTCJul 22, 21:30 UTC3h 25m
2026-07-22 SKW5302 ORD → CVG Jul 22, 18:00 UTCJul 22, 19:19 UTC1h 19m
2026-07-22 SKW5348 FAR → ORD Jul 22, 14:50 UTCJul 22, 16:05 UTC1h 15m
2026-07-21 SKW5622 SFO → MSP Jul 21, 23:50 UTCJul 22, 00:50 UTC1h 0m
2026-07-21 SKW5377 - Jul 21, 21:55 UTCJul 21, 22:35 UTC40m
2026-07-21 SKW6031 - Jul 21, 19:45 UTCJul 21, 20:30 UTC45m
2026-07-21 SKW5661 PHL → ORD Jul 21, 16:35 UTCJul 21, 17:30 UTC55m
2026-07-21 SKW5661 PHL → ORD Jul 21, 16:37 UTCJul 21, 17:18 UTC41m
2026-07-21 SKW4731 DEN → SAF Jul 21, 14:45 UTCJul 21, 15:25 UTC40m
2026-07-21 SKW5239 - Jul 21, 11:05 UTCJul 21, 12:45 UTC1h 40m
2026-07-21 SKW5964 DEN → FAR Jul 21, 03:10 UTCJul 21, 04:35 UTC1h 25m
2026-07-20 SKW5695 MFR → SFO Jul 20, 23:46 UTCJul 21, 01:00 UTC1h 14m
2026-07-20 SKW5357 DEN → DEN Jul 20, 20:05 UTCJul 21, 01:05 UTC4h 59m
2026-07-20 SKW5576 ORD → LNK Jul 20, 16:10 UTCJul 20, 16:40 UTC30m
2026-07-20 SKW5576 ORD → LNK Jul 20, 16:04 UTCJul 20, 16:35 UTC31m
2026-07-20 SKW420W - Jul 20, 14:10 UTCJul 20, 14:35 UTC25m
2026-07-20 SKW5063 ORD → CMX Jul 20, 12:25 UTCJul 20, 12:45 UTC20m
2026-07-20 SKW583X DEN → CYS Jul 20, 03:25 UTCJul 20, 03:45 UTC20m
2026-07-20 SKW5661 PHL → ORD Jul 20, 01:00 UTCJul 20, 01:50 UTC50m
2026-07-19 SKW5209 - Jul 19, 23:10 UTCJul 19, 23:45 UTC35m
2026-07-19 SKW6063 MCW → ORD Jul 19, 20:29 UTCJul 19, 21:43 UTC1h 14m
2026-07-19 SKW6063 MCW → ORD Jul 19, 18:10 UTCJul 19, 21:45 UTC3h 35m
2026-07-19 SKW5551 - Jul 19, 00:15 UTCJul 19, 01:10 UTC55m
2026-07-18 SKW395Z DEN → IDA Jul 18, 21:45 UTCJul 18, 22:35 UTC50m
2026-07-18 SKW5229 MOT → DEN Jul 18, 18:37 UTCJul 18, 19:44 UTC1h 7m
2026-07-18 SKW5235 DEN → DEN Jul 18, 15:55 UTCJul 18, 19:45 UTC3h 50m
2026-07-18 SKW5367 - Jul 18, 01:20 UTCJul 18, 14:00 UTC12h 41m
2026-07-17 SKW5431 LNK → DEN Jul 17, 22:15 UTCJul 17, 23:20 UTC1h 5m
2026-07-17 SKW5431 LNK → DEN Jul 17, 22:19 UTCJul 17, 23:14 UTC55m
2026-07-17 SKW5827 PSP → SFO Jul 17, 20:10 UTCJul 17, 21:05 UTC55m
2026-07-17 SKW4709 - Jul 17, 17:40 UTCJul 17, 18:25 UTC45m
2026-07-17 SKW4704 - Jul 17, 15:49 UTCJul 17, 16:24 UTC35m
2026-07-17 SKW4696 - Jul 17, 13:25 UTCJul 17, 13:50 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 N773SK page for operator, model, and routing details .

Mode-S AA75C6 frequently asked

What is Mode-S code AA75C6?
AA75C6 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N773SK.
Where is Mode-S AA75C6 registered?
Mode-S code AA75C6 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 AA75C6 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:20 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AA75C6, octal 52472706, decimal 11,171,270.
What flights does AA75C6 operate?
Mode-S AA75C6 has broadcast 20 distinct callsigns, including SKW4685, SKW5661, SKW5357, SKW4639, SKW5878.