Apparatus

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sensors Mode-S transponder

AD854A

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N970SW · BOMBARDIER Regional Jet CRJ-200 · operated by SKYWEST AIRLINES INC

Hex
AD854A
Octal
53302512
Decimal
11,371,850
Country
US
Tail
N970SW
Type
CRJ2
Transponder active on ground
Flights observed
136
Distinct callsigns
20
Country
US
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S AD854A.

Country allocation

The ICAO 24-bit address AD854A 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
SKW5335 SkyWest Airlines 4 2026-05-29
SKW5048 SkyWest Airlines 4 2026-05-23
SKW5436 SkyWest Airlines 3 2026-05-27
SKW5043 SkyWest Airlines 3 2026-05-23
SKW4752 SkyWest Airlines 3 2026-05-22
SKW458U SkyWest Airlines 3 2026-05-22
SKW6081 SkyWest Airlines 2 2026-05-12
SKW5907 SkyWest Airlines 2 2026-05-21
SKW5882 SkyWest Airlines 2 2026-05-19
SKW5872 SkyWest Airlines 2 2026-05-18
SKW5861 SkyWest Airlines 2 2026-06-02
SKW5675 SkyWest Airlines 2 2026-05-28
SKW5668 SkyWest Airlines 2 2026-05-29
SKW5651 SkyWest Airlines 2 2026-05-22
SKW5614 SkyWest Airlines 2 2026-05-31
SKW5584 SkyWest Airlines 2 2026-05-20
SKW5568 SkyWest Airlines 2 2026-05-15
SKW5483 SkyWest Airlines 2 2026-05-17
SKW5474 SkyWest Airlines 2 2026-05-15
SKW5473 SkyWest Airlines 2 2026-05-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-03 SKW5592 RDD → SFO Jun 3, 03:55 UTCJun 3, 04:30 UTC35m
2026-06-03 SKW6018 ORD → OKC Jun 3, 02:00 UTCJun 3, 02:35 UTC35m
2026-06-03 SKW5737 SLC → SFO Jun 3, 00:20 UTCJun 3, 00:50 UTC30m
2026-06-02 SKW5199 PSP → SFO Jun 2, 21:00 UTCJun 2, 22:55 UTC1h 55m
2026-06-02 SKW5861 DEN → COS Jun 2, 00:25 UTCJun 2, 00:45 UTC20m
2026-06-02 SKW5861 DEN → COS Jun 2, 00:16 UTCJun 2, 00:41 UTC25m
2026-06-01 SKW5093 RKS → DEN Jun 1, 22:30 UTCJun 1, 23:00 UTC30m
2026-06-01 SKW5093 RKS → DEN Jun 1, 22:00 UTCJun 1, 23:16 UTC1h 16m
2026-06-01 SKW5051 ORD → LAF Jun 1, 03:25 UTCJun 1, 03:45 UTC20m
2026-06-01 SKW5101 PRC → LAX Jun 1, 00:35 UTCJun 1, 01:00 UTC25m
2026-06-01 SKW5101 PRC → LAX Jun 1, 00:30 UTCJun 1, 00:53 UTC23m
2026-05-31 SKW592J DEN → LBL May 31, 22:45 UTCMay 31, 23:10 UTC25m
2026-05-31 SKW4647 CHO → ORD May 31, 20:20 UTCMay 31, 21:00 UTC40m
2026-05-31 SKW5614 OKC → IAH May 31, 19:10 UTCMay 31, 19:30 UTC20m
2026-05-31 SKW5614 OKC → IAH May 31, 19:15 UTCMay 31, 19:29 UTC14m
2026-05-31 SKW5105 ORD → MCW May 31, 16:30 UTCMay 31, 17:10 UTC40m
2026-05-31 SKW442L DEN → DDC May 31, 14:21 UTCMay 31, 14:58 UTC37m
2026-05-31 SKW442L DEN → DDC May 31, 14:20 UTCMay 31, 14:45 UTC25m
2026-05-31 SKW5036 CYS → DEN May 31, 11:55 UTCMay 31, 12:15 UTC20m
2026-05-31 SKW5036 CYS → DEN May 31, 12:03 UTCMay 31, 12:12 UTC9m
2026-05-30 SKW5035 JST → ORD May 30, 21:00 UTCMay 30, 21:30 UTC30m
2026-05-30 SKW5046 IAD → JST May 30, 18:45 UTCMay 30, 19:20 UTC35m
2026-05-30 SKW440U SFO → SBP May 30, 14:25 UTCMay 30, 17:50 UTC3h 25m
2026-05-30 SKW5015 BFF → DEN May 30, 00:05 UTCMay 30, 00:45 UTC40m
2026-05-29 SKW429Z JLN → DEN May 29, 20:35 UTCMay 29, 22:45 UTC2h 10m
2026-05-29 SKW429Z JLN → DEN May 29, 20:34 UTCMay 29, 22:34 UTC2h 0m
2026-05-29 SKW5335 PNS → DEN May 29, 18:20 UTCMay 29, 19:35 UTC1h 15m
2026-05-29 SKW5335 PNS → DEN May 29, 16:40 UTCMay 29, 16:55 UTC15m
2026-05-29 SKW5335 PNS → DEN May 29, 16:15 UTCMay 29, 16:55 UTC40m
2026-05-29 SKW5335 PNS → DEN May 29, 15:56 UTCMay 29, 16:23 UTC27m
2026-05-29 SKW5668 ORD → DCA May 29, 13:10 UTCMay 29, 13:30 UTC20m
2026-05-29 SKW5668 ORD → DCA May 29, 13:11 UTCMay 29, 13:33 UTC22m
2026-05-28 SKW5675 SFO → RDD May 28, 21:10 UTCMay 28, 22:00 UTC50m
2026-05-28 SKW5675 SFO → RDD May 28, 20:59 UTCMay 28, 21:22 UTC23m
2026-05-28 SKW376K ORD → SLN May 28, 19:55 UTCMay 28, 20:15 UTC20m
2026-05-28 SKW4740 GTF → DEN May 28, 17:15 UTCMay 28, 18:00 UTC45m
2026-05-28 SKW4740 GTF → DEN May 28, 17:19 UTCMay 28, 17:26 UTC7m
2026-05-28 SKW5679 CHO → ORD May 28, 15:40 UTCMay 28, 15:55 UTC15m
2026-05-28 SKW4788 GEG → SFO May 28, 12:10 UTCMay 28, 13:20 UTC1h 10m
2026-05-27 SKW457T ORD → SAV May 27, 23:40 UTCMay 28, 00:35 UTC55m
2026-05-27 SKW5436 TYS → ORD May 27, 21:30 UTCMay 27, 21:40 UTC10m
2026-05-27 SKW5436 TYS → ORD May 27, 20:55 UTCMay 27, 21:40 UTC45m
2026-05-27 SKW5436 TYS → ORD May 27, 21:00 UTCMay 27, 21:11 UTC11m
2026-05-27 SKW421V ORD → FWA May 27, 19:30 UTCMay 27, 19:50 UTC20m
2026-05-27 SKW5473 SNA → SFO May 27, 15:40 UTCMay 27, 17:10 UTC1h 30m
2026-05-27 SKW5547 SFO → ABQ May 27, 02:59 UTCMay 27, 04:09 UTC1h 10m
2026-05-26 SKW6077 DVL → DEN May 26, 23:49 UTCMay 27, 00:25 UTC35m
2026-05-26 SKW5032 SLN → ORD May 26, 21:49 UTCMay 26, 22:20 UTC30m
2026-05-26 SKW5017 DEC → ORD May 26, 19:10 UTCMay 26, 20:20 UTC1h 10m
2026-05-26 SKW5017 DEC → ORD May 26, 19:22 UTCMay 26, 19:54 UTC32m

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 N970SW page for operator, model, and routing details .

Mode-S AD854A frequently asked

What is Mode-S code AD854A?
AD854A is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N970SW.
Where is Mode-S AD854A registered?
Mode-S code AD854A 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 AD854A broadcasting right now?
Mode-S AD854A is currently broadcasting from the ground.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AD854A, octal 53302512, decimal 11,371,850.
What flights does AD854A operate?
Mode-S AD854A has broadcast 20 distinct callsigns, including SKW5335, SKW5048, SKW5436, SKW5043, SKW4752.