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sensors Mode-S transponder

AC9850

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N910SW · BOMBARDIER Regional Jet CRJ-200 · operated by SKYWEST AIRLINES INC

Hex
AC9850
Octal
53114120
Decimal
11,311,184
Country
US
Tail
N910SW
Type
CRJ2
No current signal · last broadcast Jul 26, 22:00 UTC
Flights observed
703
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:00 UTC

Last known position

Most recent position reported by Mode-S AC9850.

Country allocation

The ICAO 24-bit address AC9850 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
SKW5078 - 12 2026-07-18
SKW5020 - 9 2026-07-15
SKW5227 - 8 2026-06-30
SKW5224 SkyWest Airlines 8 2026-07-25
SKW5113 - 8 2026-07-18
SKW5081 - 8 2026-07-16
SKW4771 - 8 2026-07-06
SKW5952 SkyWest Airlines 7 2026-07-25
SKW5817 - 7 2026-06-29
SKW5080 - 7 2026-07-08
SKW5079 - 7 2026-07-22
SKW5056 SkyWest Airlines 7 2026-07-23
SKW5040 SkyWest Airlines 7 2026-07-23
SKW5039 - 7 2026-07-15
SKW5023 SkyWest Airlines 7 2026-07-22
SKW4631 - 7 2026-07-06
SKW5927 SkyWest Airlines 6 2026-06-05
SKW5861 - 6 2026-07-10
SKW583X - 6 2026-07-06
SKW577P SkyWest Airlines 6 2026-07-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SKW5117 LAX → SGU Jul 26, 21:25 UTCJul 26, 22:00 UTC35m
2026-07-26 SKW469W SGU → LAX Jul 26, 18:50 UTCJul 26, 19:45 UTC55m
2026-07-26 SKW6061 HYS → DEN Jul 26, 14:55 UTCJul 26, 16:10 UTC1h 15m
2026-07-26 SKW5054 SGU → DEN Jul 26, 11:30 UTCJul 26, 12:40 UTC1h 10m
2026-07-25 SKW5077 SUX → ORD Jul 25, 23:45 UTCJul 26, 00:35 UTC50m
2026-07-25 SKW5077 SUX → ORD Jul 25, 23:45 UTCJul 26, 00:57 UTC1h 12m
2026-07-25 SKW5952 DRO → DEN Jul 25, 21:45 UTCJul 25, 22:35 UTC50m
2026-07-25 SKW5952 DRO → DEN Jul 25, 21:44 UTCJul 25, 22:25 UTC41m
2026-07-25 SKW5224 DEN → DRO Jul 25, 19:40 UTCJul 25, 20:05 UTC25m
2026-07-25 SKW6007 ORD → DCA Jul 25, 16:55 UTCJul 25, 18:15 UTC1h 20m
2026-07-25 SKW6007 ORD → DCA Jul 25, 16:49 UTCJul 25, 18:09 UTC1h 20m
2026-07-25 SKW5252 FAT → LAX Jul 25, 01:20 UTCJul 25, 02:35 UTC1h 15m
2026-07-24 SKW4743 ICT → ORD Jul 24, 22:45 UTCJul 24, 23:20 UTC35m
2026-07-24 SKW4743 ICT → ORD Jul 24, 22:33 UTCJul 24, 23:14 UTC41m
2026-07-24 SKW5233 SFO → BUR Jul 24, 20:20 UTCJul 24, 21:05 UTC45m
2026-07-24 SKW5245 DTW → ORD Jul 24, 17:20 UTCJul 24, 18:10 UTC50m
2026-07-24 SKW5743 STS → SFO Jul 24, 15:56 UTCJul 24, 16:28 UTC32m
2026-07-24 SKW5743 STS → SFO Jul 24, 15:50 UTCJul 24, 16:30 UTC40m
2026-07-24 SKW5564 DCA → ORD Jul 24, 13:40 UTCJul 24, 14:30 UTC50m
2026-07-24 SKW6025 SLC → DEN Jul 24, 03:30 UTCJul 24, 04:15 UTC45m
2026-07-24 SKW6025 SLC → DEN Jul 24, 03:13 UTCJul 24, 04:26 UTC1h 13m
2026-07-23 SKW5474 SJC → DEN Jul 23, 21:40 UTCJul 23, 22:35 UTC55m
2026-07-23 SKW4797 LAX → EUG Jul 23, 19:45 UTCJul 23, 20:30 UTC45m
2026-07-23 SKW4797 LAX → EUG Jul 23, 19:45 UTCJul 23, 20:49 UTC1h 4m
2026-07-23 SKW5072 BFF → DEN Jul 23, 16:50 UTCJul 23, 17:25 UTC35m
2026-07-23 SKW5072 BFF → DEN Jul 23, 14:35 UTCJul 23, 14:55 UTC20m
2026-07-23 SKW5040 DEN → SGU Jul 23, 11:30 UTCJul 23, 12:20 UTC50m
2026-07-23 SKW6067 PIB → IAH Jul 23, 02:55 UTCJul 23, 03:45 UTC50m
2026-07-23 SKW5056 ORD → EAU Jul 23, 01:05 UTCJul 23, 01:35 UTC30m
2026-07-22 SKW5056 ORD → EAU Jul 22, 22:40 UTCJul 22, 22:55 UTC15m
2026-07-22 SKW5056 ORD → EAU Jul 22, 22:05 UTCJul 22, 22:55 UTC50m
2026-07-22 SKW5056 ORD → EAU Jul 22, 21:05 UTCJul 22, 22:21 UTC1h 16m
2026-07-22 SKW5079 - Jul 22, 19:15 UTCJul 22, 20:05 UTC50m
2026-07-22 SKW4690 - Jul 22, 15:40 UTCJul 22, 16:15 UTC35m
2026-07-22 SKW510A - Jul 22, 14:05 UTCJul 22, 14:40 UTC35m
2026-07-22 SKW5829 SFO → RDM Jul 22, 11:15 UTCJul 22, 12:30 UTC1h 15m
2026-07-22 SKW5829 SFO → RDM Jul 22, 11:17 UTCJul 22, 12:20 UTC1h 3m
2026-07-22 SKW5257 DTW → IAH Jul 22, 03:30 UTCJul 22, 04:45 UTC1h 15m
2026-07-22 SKW5023 CMX → ORD Jul 22, 01:35 UTCJul 22, 02:15 UTC40m
2026-07-22 SKW5023 CMX → ORD Jul 22, 01:35 UTCJul 22, 02:06 UTC31m
2026-07-22 SKW5090 JMS → DEN Jul 22, 00:00 UTCJul 22, 00:30 UTC30m
2026-07-21 SKW5952 - Jul 21, 21:50 UTCJul 21, 22:40 UTC50m
2026-07-21 SKW5224 DEN → DRO Jul 21, 19:45 UTCJul 21, 20:10 UTC25m
2026-07-21 SKW5028 SUX → ORD Jul 21, 17:05 UTCJul 21, 17:45 UTC40m
2026-07-21 SKW5028 SUX → ORD Jul 21, 15:59 UTCJul 21, 17:48 UTC1h 49m
2026-07-21 SKW645V DEN → YQR Jul 21, 01:30 UTCJul 21, 02:10 UTC40m
2026-07-20 SKW4743 AMA → DEN Jul 20, 22:31 UTCJul 20, 23:26 UTC55m
2026-07-20 SKW5233 SFO → BUR Jul 20, 20:35 UTCJul 20, 21:05 UTC30m
2026-07-20 SKW382H DEN → DEN Jul 20, 02:45 UTCJul 20, 17:45 UTC15h 0m
2026-07-19 SKW5098 DEN → DEN Jul 19, 20:50 UTCJul 20, 00:55 UTC4h 5m

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 N910SW page for operator, model, and routing details .

Mode-S AC9850 frequently asked

What is Mode-S code AC9850?
AC9850 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N910SW.
Where is Mode-S AC9850 registered?
Mode-S code AC9850 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 AC9850 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AC9850, octal 53114120, decimal 11,311,184.
What flights does AC9850 operate?
Mode-S AC9850 has broadcast 20 distinct callsigns, including SKW5078, SKW5020, SKW5227, SKW5224, SKW5113.