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sensors Mode-S transponder

A3828A

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N325SY · EMBRAER ERJ-170-200 (long wing) · operated by SKYWEST AIRLINES INC

Hex
A3828A
Octal
50701212
Decimal
10,715,786
Country
US
Tail
N325SY
Type
E75L
Broadcasting now · callsign SKW4053 · 20,625 ft
Flights observed
664
Distinct callsigns
20
Country
US
Last broadcast
2h ago

Current position

A3828A is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A3828A 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
SKW3750 SkyWest Airlines 14 2026-06-02
SKW3685 SkyWest Airlines 12 2026-06-06
SKW3692 SkyWest Airlines 11 2026-06-09
SKW4132 SkyWest Airlines 10 2026-06-02
SKW168F - 10 2026-06-28
SKW4104 - 9 2026-06-19
SKW3789 - 9 2026-06-28
SKW4153 SkyWest Airlines 8 2026-06-07
SKW4008 - 8 2026-06-25
SKW3953 - 8 2026-07-02
SKW3856 - 8 2026-07-03
SKW3832 - 8 2026-06-29
SKW3830 - 8 2026-06-28
SKW3779 - 8 2026-07-02
SKW3688 - 8 2026-06-17
SKW156H - 8 2026-06-28
SKW4062 SkyWest Airlines 7 2026-05-26
SKW3894 - 7 2026-06-15
SKW3781 SkyWest Airlines 7 2026-06-17
SKW3755 SkyWest Airlines 7 2026-06-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 SKW3747 - Jul 14, 17:20 UTCJul 14, 18:30 UTC1h 10m
2026-07-14 SKW3747 AUS → PHX Jul 14, 14:20 UTCJul 14, 16:20 UTC2h 0m
2026-07-14 SKW3734 - Jul 14, 00:10 UTCJul 14, 02:20 UTC2h 10m
2026-07-13 SKW3734 AUS → TPA Jul 13, 20:30 UTCJul 13, 23:10 UTC2h 40m
2026-07-13 SKW4121 - Jul 13, 17:55 UTCJul 13, 18:45 UTC50m
2026-07-13 SKW4177 - Jul 13, 15:50 UTCJul 13, 16:35 UTC45m
2026-07-13 SKW4146 BNA → AUS Jul 13, 12:25 UTCJul 13, 14:05 UTC1h 40m
2026-07-13 SKW4163 AUS → BNA Jul 13, 03:30 UTCJul 13, 05:10 UTC1h 40m
2026-07-13 SKW3734 TPA → AUS Jul 13, 00:01 UTCJul 13, 02:05 UTC2h 5m
2026-07-12 SKW3734 AUS → TPA Jul 12, 20:10 UTCJul 12, 22:25 UTC2h 15m
2026-07-12 SKW4121 - Jul 12, 17:55 UTCJul 12, 18:45 UTC50m
2026-07-12 SKW4177 - Jul 12, 16:01 UTCJul 12, 16:45 UTC45m
2026-07-12 SKW3950 MSP → AUS Jul 12, 12:15 UTCJul 12, 14:40 UTC2h 25m
2026-07-12 SKW3930 - Jul 12, 10:10 UTCJul 12, 10:35 UTC25m
2026-07-12 SKW3907 - Jul 12, 03:40 UTCJul 12, 04:01 UTC20m
2026-07-11 SKW3935 - Jul 11, 23:05 UTCJul 11, 23:50 UTC45m
2026-07-11 SKW3935 BIS → MSP Jul 11, 23:05 UTCJul 11, 23:49 UTC44m
2026-07-11 SKW3935 - Jul 11, 20:40 UTCJul 11, 21:35 UTC55m
2026-07-11 SKW3699 IAD → MSP Jul 11, 15:45 UTCJul 11, 18:00 UTC2h 15m
2026-07-11 SKW3699 IAD → MSP Jul 11, 15:54 UTCJul 11, 18:00 UTC2h 6m
2026-07-11 SKW3699 MSP → IAD Jul 11, 12:30 UTCJul 11, 14:30 UTC2h 0m
2026-07-11 SKW3914 - Jul 11, 10:20 UTCJul 11, 11:10 UTC50m
2026-07-11 SKW3834 - Jul 11, 03:55 UTCJul 11, 04:50 UTC55m
2026-07-10 SKW3686 - Jul 10, 22:40 UTCJul 10, 23:05 UTC25m
2026-07-10 SKW3686 - Jul 10, 21:05 UTCJul 10, 21:30 UTC25m
2026-07-10 SKW157E YWG → MSP Jul 10, 18:00 UTCJul 10, 19:00 UTC1h 0m
2026-07-10 SKW197F MSP → YWG Jul 10, 15:30 UTCJul 10, 16:35 UTC1h 5m
2026-07-10 SKW4458 - Jul 10, 13:15 UTCJul 10, 14:10 UTC55m
2026-07-10 SKW4468 MSP → MKE Jul 10, 01:45 UTCJul 10, 02:24 UTC39m
2026-07-10 SKW4468 - Jul 10, 01:40 UTCJul 10, 02:30 UTC50m
2026-07-09 SKW3935 - Jul 9, 23:05 UTCJul 9, 23:55 UTC50m
2026-07-09 SKW3935 BIS → MSP Jul 9, 23:05 UTCJul 9, 23:50 UTC45m
2026-07-09 SKW3935 - Jul 9, 20:40 UTCJul 9, 21:35 UTC55m
2026-07-09 SKW3561 BOI → SEA Jul 9, 16:10 UTCJul 9, 16:50 UTC40m
2026-07-09 SKW3561 BOI → SEA Jul 9, 14:25 UTCJul 9, 15:00 UTC35m
2026-07-09 SKW3996 IAD → MSP Jul 9, 10:10 UTCJul 9, 12:25 UTC2h 15m
2026-07-09 SKW3996 IAD → MSP Jul 9, 10:13 UTCJul 9, 12:20 UTC2h 7m
2026-07-09 SKW4129 MSP → IAD Jul 9, 01:30 UTCJul 9, 03:40 UTC2h 10m
2026-07-08 SKW3526 YWG → MSP Jul 8, 21:20 UTCJul 8, 22:30 UTC1h 10m
2026-07-08 SKW192E MSP → YWG Jul 8, 19:00 UTCJul 8, 19:50 UTC50m
2026-07-08 SKW192E MSP → YWG Jul 8, 18:50 UTCJul 8, 19:55 UTC1h 5m
2026-07-08 SKW3561 BOI → SEA Jul 8, 16:00 UTCJul 8, 16:40 UTC40m
2026-07-08 SKW3561 BOI → SEA Jul 8, 14:20 UTCJul 8, 15:05 UTC45m
2026-07-08 SKW3996 IAD → MSP Jul 8, 10:10 UTCJul 8, 12:15 UTC2h 5m
2026-07-08 SKW4129 MSP → IAD Jul 8, 01:05 UTCJul 8, 03:15 UTC2h 10m
2026-07-07 SKW3526 YWG → MSP Jul 7, 21:10 UTCJul 7, 22:10 UTC1h 0m
2026-07-07 SKW192E MSP → YWG Jul 7, 18:55 UTCJul 7, 20:00 UTC1h 5m
2026-07-07 SKW3813 AUS → MSP Jul 7, 14:55 UTCJul 7, 17:30 UTC2h 35m
2026-07-07 SKW4015 - Jul 7, 11:35 UTCJul 7, 13:50 UTC2h 15m
2026-07-07 SKW4015 IND → AUS Jul 7, 11:37 UTCJul 7, 13:49 UTC2h 12m

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 N325SY page for operator, model, and routing details .

Mode-S A3828A frequently asked

What is Mode-S code A3828A?
A3828A is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N325SY.
Where is Mode-S A3828A registered?
Mode-S code A3828A 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 A3828A broadcasting right now?
Yes. Mode-S A3828A is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A3828A, octal 50701212, decimal 10,715,786.
What flights does A3828A operate?
Mode-S A3828A has broadcast 20 distinct callsigns, including SKW3750, SKW3685, SKW3692, SKW4132, SKW168F.