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sensors Mode-S transponder

ADA6B9

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N979SW · BOMBARDIER Regional Jet CRJ-200 · operated by SKYWEST AIRLINES INC

Hex
ADA6B9
Octal
53323271
Decimal
11,380,409
Country
US
Tail
N979SW
Type
CRJ2
Broadcasting now · callsign SKW4695 · 10,225 ft
Flights observed
647
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:15 UTC

Current position

ADA6B9 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address ADA6B9 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
SKW5915 SkyWest Airlines 8 2026-06-05
SKW5358 SkyWest Airlines 8 2026-05-23
SKW5029 - 8 2026-06-18
SKW5448 - 7 2026-07-20
SKW5344 SkyWest Airlines 7 2026-06-05
SKW5041 - 7 2026-07-09
SKW5025 - 7 2026-07-08
SKW6073 - 6 2026-07-08
SKW5801 SkyWest Airlines 6 2026-07-21
SKW5474 - 6 2026-07-01
SKW5436 SkyWest Airlines 6 2026-07-20
SKW5321 SkyWest Airlines 6 2026-05-16
SKW5118 - 6 2026-07-08
SKW5034 - 6 2026-06-14
SKW4698 - 6 2026-06-22
SKW6077 SkyWest Airlines 5 2026-07-19
SKW6071 - 5 2026-07-08
SKW6067 SkyWest Airlines 5 2026-06-08
SKW5953 SkyWest Airlines 5 2026-06-15
SKW576U SkyWest Airlines 5 2026-06-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SKW5113 ORD → JST Jul 26, 21:15 UTCJul 26, 22:15 UTC1h 0m
2026-07-26 SKW5113 ORD → JST Jul 26, 17:55 UTCJul 26, 19:00 UTC1h 5m
2026-07-26 SKW4631 DEN → LBB Jul 26, 15:25 UTCJul 26, 16:15 UTC50m
2026-07-26 SKW4771 ORD → ICT Jul 26, 13:55 UTCJul 26, 14:35 UTC40m
2026-07-26 SKW5040 DEN → SGU Jul 26, 11:25 UTCJul 26, 12:25 UTC1h 0m
2026-07-26 SKW333U DEN → SHR Jul 26, 03:35 UTCJul 26, 04:25 UTC50m
2026-07-25 SKW5131 ORD → FOD Jul 25, 23:25 UTCJul 26, 00:55 UTC1h 30m
2026-07-25 SKW5131 ORD → FOD Jul 25, 23:35 UTCJul 26, 00:33 UTC58m
2026-07-25 SKW439H DEN → ABI Jul 25, 20:30 UTCJul 25, 21:40 UTC1h 10m
2026-07-25 SKW439H DEN → ABI Jul 25, 20:33 UTCJul 25, 21:50 UTC1h 17m
2026-07-25 SKW4675 SFO → PSP Jul 25, 18:00 UTCJul 25, 18:30 UTC30m
2026-07-25 SKW4744 ONT → SFO Jul 25, 04:45 UTCJul 25, 05:05 UTC20m
2026-07-24 SKW450H ORD → MCI Jul 24, 15:50 UTCJul 24, 17:25 UTC1h 35m
2026-07-23 SKW6076 DEN → ROW Jul 23, 21:45 UTCJul 23, 22:35 UTC50m
2026-07-23 SKW6076 DEN → ROW Jul 23, 21:53 UTCJul 23, 22:36 UTC43m
2026-07-23 SKW6075 ROW → DEN Jul 23, 18:50 UTCJul 23, 20:10 UTC1h 20m
2026-07-23 SKW484C ICT → ORD Jul 23, 16:10 UTCJul 23, 17:35 UTC1h 25m
2026-07-23 SKW5071 SUX → ORD Jul 23, 13:25 UTCJul 23, 14:35 UTC1h 10m
2026-07-22 SKW330Z ORD → SUX Jul 22, 21:40 UTCJul 22, 22:45 UTC1h 5m
2026-07-22 SKW6022 PIA → ORD Jul 22, 18:30 UTCJul 22, 19:00 UTC30m
2026-07-22 SKW5733 HRL → DEN Jul 22, 16:45 UTCJul 22, 17:10 UTC25m
2026-07-22 SKW5910 LNK → ORD Jul 22, 12:30 UTCJul 22, 13:45 UTC1h 15m
2026-07-22 SKW5314 XNA → ORD Jul 22, 01:50 UTCJul 22, 03:05 UTC1h 15m
2026-07-22 SKW5314 XNA → ORD Jul 22, 01:31 UTCJul 22, 02:55 UTC1h 24m
2026-07-21 SKW4808 MFR → SFO Jul 21, 23:30 UTCJul 22, 00:05 UTC35m
2026-07-21 SKW4808 MFR → SFO Jul 21, 23:21 UTCJul 21, 23:46 UTC25m
2026-07-21 SKW394J ORD → PIA Jul 21, 22:10 UTCJul 21, 22:40 UTC30m
2026-07-21 SKW5807 PIA → ORD Jul 21, 15:50 UTCJul 21, 16:30 UTC40m
2026-07-21 SKW5949 SFO → SBP Jul 21, 14:15 UTCJul 21, 14:40 UTC25m
2026-07-21 SKW5949 SFO → SBP Jul 21, 14:19 UTCJul 21, 14:36 UTC17m
2026-07-21 SKW5801 ORD → MEM Jul 21, 11:30 UTCJul 21, 12:15 UTC45m
2026-07-21 SKW5801 ORD → MEM Jul 21, 11:22 UTCJul 21, 12:36 UTC1h 14m
2026-07-21 SKW4784 - Jul 21, 00:00 UTCJul 21, 01:05 UTC1h 5m
2026-07-20 SKW5436 TYS → ORD Jul 20, 21:00 UTCJul 20, 21:30 UTC30m
2026-07-20 SKW5436 TYS → ORD Jul 20, 21:00 UTCJul 20, 21:09 UTC9m
2026-07-20 SKW393H ORD → CAK Jul 20, 19:35 UTCJul 20, 20:00 UTC25m
2026-07-20 SKW5448 - Jul 20, 15:35 UTCJul 20, 17:15 UTC1h 40m
2026-07-20 SKW4789 - Jul 20, 03:00 UTCJul 20, 04:30 UTC1h 30m
2026-07-19 SKW5064 DEC → ORD Jul 19, 23:50 UTCJul 20, 00:30 UTC40m
2026-07-19 SKW5064 DEC → ORD Jul 19, 22:15 UTCJul 19, 22:50 UTC35m
2026-07-19 SKW6077 DVL → DEN Jul 19, 19:45 UTCJul 19, 20:35 UTC50m
2026-07-19 SKW546J - Jul 19, 17:25 UTCJul 19, 18:05 UTC40m
2026-07-19 SKW5981 - Jul 19, 15:10 UTCJul 19, 15:55 UTC45m
2026-07-18 SKW4630 BFL → SFO Jul 18, 22:35 UTCJul 18, 22:55 UTC20m
2026-07-18 SKW4630 BFL → SFO Jul 18, 22:27 UTCJul 18, 23:12 UTC45m
2026-07-18 SKW4752 ORD → ROA Jul 18, 19:55 UTCJul 18, 21:15 UTC1h 20m
2026-07-18 SKW519Y - Jul 18, 16:45 UTCJul 18, 17:40 UTC55m
2026-07-17 SKW4673 - Jul 17, 20:35 UTCJul 17, 22:55 UTC2h 20m
2026-07-17 SKW5205 - Jul 17, 18:00 UTCJul 17, 19:35 UTC1h 35m
2026-07-17 SKW5205 ORD → ALB Jul 17, 18:01 UTCJul 17, 19:29 UTC1h 28m

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 N979SW page for operator, model, and routing details .

Mode-S ADA6B9 frequently asked

What is Mode-S code ADA6B9?
ADA6B9 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N979SW.
Where is Mode-S ADA6B9 registered?
Mode-S code ADA6B9 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 ADA6B9 broadcasting right now?
Yes. Mode-S ADA6B9 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ADA6B9, octal 53323271, decimal 11,380,409.
What flights does ADA6B9 operate?
Mode-S ADA6B9 has broadcast 20 distinct callsigns, including SKW5915, SKW5358, SKW5029, SKW5448, SKW5344.