Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A75A2D

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N573GJ · BOMBARDIER Regional Jet CRJ-700 · operated by SKY WEST AIRLINES INC

Hex
A75A2D
Octal
51655055
Decimal
10,967,597
Country
US
Tail
N573GJ
Type
CRJ7
No current signal · last broadcast Jul 26, 20:40 UTC
Flights observed
361
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 20:40 UTC

Last known position

Most recent position reported by Mode-S A75A2D.

Country allocation

The ICAO 24-bit address A75A2D 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
SKW4776 - 7 2026-07-08
SKW5353 - 6 2026-07-09
SKW5348 - 6 2026-07-14
SKW4694 - 6 2026-07-09
SKW5669 - 5 2026-07-08
SKW5551 - 5 2026-07-15
SKW5310 - 5 2026-07-14
SKW4663 - 5 2026-07-07
SKW395Z - 5 2026-07-14
SKW5878 - 4 2026-07-14
SKW5643 - 4 2026-07-07
SKW5622 - 4 2026-07-13
SKW5293 - 4 2026-06-29
SKW4738 - 4 2026-06-30
SKW4711 SkyWest Airlines 4 2026-07-24
SKW4696 - 4 2026-07-13
SKW6007 SkyWest Airlines 3 2026-05-17
SKW594X SkyWest Airlines 3 2026-06-15
SKW5865 SkyWest Airlines 3 2026-07-20
SKW5853 SkyWest Airlines 3 2026-07-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SKW5617 PSP → SFO Jul 26, 19:20 UTCJul 26, 20:40 UTC1h 20m
2026-07-26 SKW6037 LAX → RDD Jul 26, 17:25 UTCJul 26, 18:30 UTC1h 5m
2026-07-26 SKW5466 BOI → SFO Jul 26, 15:00 UTCJul 26, 16:15 UTC1h 15m
2026-07-26 SKW5409 ORD → FAR Jul 26, 12:55 UTCJul 26, 13:50 UTC55m
2026-07-26 SKW5889 SDF → ORD Jul 26, 10:45 UTCJul 26, 11:20 UTC35m
2026-07-25 SKW751X ORD → TVC Jul 25, 23:20 UTCJul 25, 23:40 UTC20m
2026-07-25 SKW5869 SFO → PSP Jul 25, 20:40 UTCJul 25, 21:40 UTC1h 0m
2026-07-25 SKW404F ORD → COU Jul 25, 18:30 UTCJul 25, 19:20 UTC50m
2026-07-25 SKW5664 ORD → MBS Jul 25, 16:05 UTCJul 25, 16:55 UTC50m
2026-07-25 SKW5721 STL → ORD Jul 25, 14:20 UTCJul 25, 14:55 UTC35m
2026-07-25 SKW5721 STL → ORD Jul 25, 14:10 UTCJul 25, 14:51 UTC41m
2026-07-25 SKW5896 SFO → BUR Jul 25, 11:50 UTCJul 25, 12:45 UTC55m
2026-07-24 SKW4711 DAY → ORD Jul 24, 01:15 UTCJul 24, 01:40 UTC25m
2026-07-23 SKW5289 ORD → MDT Jul 23, 22:35 UTCJul 24, 00:00 UTC1h 25m
2026-07-23 SKW5573 RDM → SFO Jul 23, 19:35 UTCJul 23, 20:45 UTC1h 10m
2026-07-23 SKW5361 SLC → SFO Jul 23, 15:35 UTCJul 23, 17:05 UTC1h 30m
2026-07-23 SKW5361 SLC → SFO Jul 23, 15:21 UTCJul 23, 17:03 UTC1h 42m
2026-07-23 SKW5330 SFO → MFR Jul 23, 12:50 UTCJul 23, 14:15 UTC1h 25m
2026-07-22 SKW5606 GEG → SFO Jul 22, 22:00 UTCJul 22, 23:35 UTC1h 35m
2026-07-22 SKW5565 SUN → SFO Jul 22, 19:30 UTCJul 22, 20:40 UTC1h 10m
2026-07-22 SKW5575 - Jul 22, 16:25 UTCJul 22, 17:30 UTC1h 5m
2026-07-22 SKW5341 ACV → LAX Jul 22, 14:30 UTCJul 22, 15:00 UTC30m
2026-07-22 SKW5840 PHX → IAH Jul 22, 11:40 UTCJul 22, 12:30 UTC50m
2026-07-21 SKW5640 ORD → TVC Jul 21, 23:40 UTCJul 22, 00:15 UTC35m
2026-07-21 SKW5336 FAT → SFO Jul 21, 00:25 UTCJul 21, 02:10 UTC1h 45m
2026-07-20 SKW4742 ELP → ORD Jul 20, 22:25 UTCJul 20, 23:30 UTC1h 5m
2026-07-20 SKW4742 ELP → ORD Jul 20, 22:30 UTCJul 20, 23:30 UTC1h 0m
2026-07-20 SKW5853 LGA → ORD Jul 20, 13:15 UTCJul 20, 14:50 UTC1h 35m
2026-07-20 SKW5767 DAY → ORD Jul 20, 03:04 UTCJul 20, 04:13 UTC1h 9m
2026-07-20 SKW5767 DAY → ORD Jul 20, 03:10 UTCJul 20, 04:20 UTC1h 10m
2026-07-20 SKW5865 BNA → ORD Jul 20, 00:05 UTCJul 20, 00:35 UTC30m
2026-07-20 SKW5865 BNA → ORD Jul 20, 00:04 UTCJul 20, 00:30 UTC26m
2026-07-19 SKW5505 - Jul 19, 21:00 UTCJul 19, 21:20 UTC20m
2026-07-19 SKW5617 PSP → SFO Jul 19, 18:15 UTCJul 19, 19:35 UTC1h 20m
2026-07-19 SKW6037 LAX → RDD Jul 19, 16:15 UTCJul 19, 17:20 UTC1h 5m
2026-07-19 SKW5853 LGA → ORD Jul 19, 12:45 UTCJul 19, 14:05 UTC1h 20m
2026-07-18 SKW5689 - Jul 18, 22:40 UTCJul 18, 23:55 UTC1h 15m
2026-07-18 SKW5603 - Jul 18, 19:05 UTCJul 18, 20:10 UTC1h 5m
2026-07-18 SKW5467 - Jul 18, 16:35 UTCJul 18, 17:25 UTC50m
2026-07-18 SKW5609 - Jul 18, 13:30 UTCJul 18, 14:20 UTC50m
2026-07-18 SKW378M ORD → COU Jul 18, 04:25 UTCJul 18, 05:10 UTC45m
2026-07-18 SKW4723 - Jul 18, 02:29 UTCJul 18, 03:10 UTC41m
2026-07-18 SKW4781 - Jul 18, 00:35 UTCJul 18, 01:10 UTC35m
2026-07-17 SKW5603 - Jul 17, 21:39 UTCJul 17, 23:10 UTC1h 30m
2026-07-17 SKW5467 - Jul 17, 17:09 UTCJul 17, 18:00 UTC50m
2026-07-17 SKW5609 - Jul 17, 13:20 UTCJul 17, 14:20 UTC1h 0m
2026-07-17 SKW378M - Jul 17, 03:50 UTCJul 17, 04:35 UTC45m
2026-07-17 SKW5653 - Jul 17, 00:45 UTCJul 17, 01:25 UTC40m
2026-07-16 SKW5555 - Jul 16, 23:35 UTCJul 16, 23:55 UTC20m
2026-07-16 SKW5436 TYS → ORD Jul 16, 21:05 UTCJul 16, 21:50 UTC45m

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 N573GJ page for operator, model, and routing details .

Mode-S A75A2D frequently asked

What is Mode-S code A75A2D?
A75A2D is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N573GJ.
Where is Mode-S A75A2D registered?
Mode-S code A75A2D 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 A75A2D broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A75A2D, octal 51655055, decimal 10,967,597.
What flights does A75A2D operate?
Mode-S A75A2D has broadcast 20 distinct callsigns, including SKW4776, SKW5353, SKW5348, SKW4694, SKW5669.