Apparatus

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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
Broadcasting now · callsign SKW6013 · 3,350 ft
Flights observed
619
Distinct callsigns
20
Country
US
Last broadcast
1h ago

Current position

AC9850 is currently broadcasting. Map zoomed to live position.

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 - 11 2026-07-11
SKW5227 - 8 2026-06-30
SKW5020 - 8 2026-07-11
SKW4771 - 8 2026-07-06
SKW5817 - 7 2026-06-29
SKW5080 - 7 2026-07-08
SKW4631 - 7 2026-07-06
SKW5927 SkyWest Airlines 6 2026-06-05
SKW5861 - 6 2026-07-10
SKW583X - 6 2026-07-06
SKW5588 - 6 2026-06-21
SKW5246 SkyWest Airlines 6 2026-05-24
SKW5224 - 6 2026-07-02
SKW5130 - 6 2026-07-02
SKW5113 - 6 2026-07-07
SKW5079 - 6 2026-07-10
SKW5070 SkyWest Airlines 6 2026-06-19
SKW5040 - 6 2026-06-23
SKW5039 - 6 2026-06-27
SKW556L SkyWest Airlines 5 2026-06-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 SKW359M - Jul 14, 02:55 UTCJul 14, 03:55 UTC1h 0m
2026-07-14 SKW4681 - Jul 14, 00:05 UTCJul 14, 00:40 UTC35m
2026-07-14 SKW4681 GRB → ORD Jul 14, 00:04 UTCJul 14, 00:33 UTC29m
2026-07-13 SKW5907 - Jul 13, 21:10 UTCJul 13, 21:45 UTC35m
2026-07-13 SKW5526 - Jul 13, 16:25 UTCJul 13, 17:25 UTC1h 0m
2026-07-13 SKW5375 - Jul 13, 14:35 UTCJul 13, 15:40 UTC1h 5m
2026-07-13 SKW4670 - Jul 13, 12:10 UTCJul 13, 13:15 UTC1h 5m
2026-07-13 SKW359M - Jul 13, 03:50 UTCJul 13, 04:55 UTC1h 5m
2026-07-13 SKW5064 - Jul 13, 02:30 UTCJul 13, 02:35 UTC5m
2026-07-13 SKW5064 - Jul 13, 01:55 UTCJul 13, 02:35 UTC40m
2026-07-13 SKW5064 DEC → ORD Jul 13, 01:52 UTCJul 13, 02:15 UTC23m
2026-07-13 SKW5064 - Jul 13, 00:50 UTCJul 13, 01:20 UTC30m
2026-07-12 SKW4633 - Jul 12, 22:55 UTCJul 12, 23:35 UTC40m
2026-07-12 SKW5633 ORD → ATW Jul 12, 21:12 UTCJul 12, 21:20 UTC8m
2026-07-12 SKW5633 - Jul 12, 20:50 UTCJul 12, 21:25 UTC35m
2026-07-12 SKW6073 - Jul 12, 18:30 UTCJul 12, 19:45 UTC1h 15m
2026-07-12 SKW6071 - Jul 12, 17:10 UTCJul 12, 17:40 UTC30m
2026-07-12 SKW6070 - Jul 12, 14:35 UTCJul 12, 15:05 UTC30m
2026-07-11 SKW6074 - Jul 11, 22:10 UTCJul 11, 23:15 UTC1h 5m
2026-07-11 SKW5017 - Jul 11, 19:20 UTCJul 11, 20:25 UTC1h 5m
2026-07-11 SKW465C - Jul 11, 17:10 UTCJul 11, 17:55 UTC45m
2026-07-11 SKW5020 - Jul 11, 14:00 UTCJul 11, 15:15 UTC1h 15m
2026-07-11 SKW5020 JLN → ORD Jul 11, 14:07 UTCJul 11, 14:59 UTC52m
2026-07-11 SKW325H DEN → JLN Jul 11, 03:25 UTCJul 11, 04:50 UTC1h 25m
2026-07-11 SKW5078 - Jul 11, 01:40 UTCJul 11, 02:10 UTC30m
2026-07-11 SKW5078 BFF → DEN Jul 11, 01:38 UTCJul 11, 02:03 UTC25m
2026-07-10 SKW577P - Jul 10, 23:15 UTCJul 10, 23:35 UTC20m
2026-07-10 SKW5056 - Jul 10, 20:35 UTCJul 10, 21:35 UTC1h 0m
2026-07-10 SKW5079 - Jul 10, 18:25 UTCJul 10, 19:10 UTC45m
2026-07-10 SKW5079 DEN → SHR Jul 10, 18:35 UTCJul 10, 19:09 UTC34m
2026-07-10 SKW5072 - Jul 10, 16:25 UTCJul 10, 17:10 UTC45m
2026-07-10 SKW5072 - Jul 10, 14:30 UTCJul 10, 14:50 UTC20m
2026-07-10 SKW4697 COS → DEN Jul 10, 11:45 UTCJul 10, 12:10 UTC25m
2026-07-10 SKW5861 DEN → COS Jul 10, 00:20 UTCJul 10, 00:40 UTC20m
2026-07-10 SKW5861 DEN → COS Jul 10, 00:17 UTCJul 10, 00:44 UTC27m
2026-07-09 SKW5742 - Jul 9, 19:00 UTCJul 9, 19:40 UTC40m
2026-07-09 SKW4674 - Jul 9, 16:35 UTCJul 9, 17:05 UTC30m
2026-07-09 SKW5085 - Jul 9, 14:35 UTCJul 9, 15:05 UTC30m
2026-07-09 SKW359C - Jul 9, 04:25 UTCJul 9, 04:45 UTC20m
2026-07-09 SKW5019 - Jul 9, 01:45 UTCJul 9, 02:00 UTC15m
2026-07-08 SKW5019 - Jul 8, 23:55 UTCJul 9, 02:00 UTC2h 5m
2026-07-08 SKW5019 ATY → DEN Jul 8, 23:41 UTCJul 9, 01:26 UTC1h 45m
2026-07-08 SKW527Y - Jul 8, 20:40 UTCJul 8, 21:45 UTC1h 5m
2026-07-08 SKW5111 - Jul 8, 16:55 UTCJul 8, 18:25 UTC1h 30m
2026-07-08 SKW5111 JMS → DEN Jul 8, 16:45 UTCJul 8, 18:19 UTC1h 34m
2026-07-08 SKW5080 DEN → JMS Jul 8, 14:09 UTCJul 8, 15:12 UTC1h 3m
2026-07-08 SKW5080 - Jul 8, 14:05 UTCJul 8, 15:15 UTC1h 10m
2026-07-08 SKW5085 - Jul 8, 11:40 UTCJul 8, 12:25 UTC45m
2026-07-08 SKW5085 LAR → DEN Jul 8, 11:45 UTCJul 8, 12:13 UTC28m
2026-07-08 SKW592J - Jul 8, 00:50 UTCJul 8, 01:05 UTC15m

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?
Yes. Mode-S AC9850 is currently airborne.
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, SKW5227, SKW5020, SKW4771, SKW5817.