Apparatus

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sensors Mode-S transponder

A32C1E

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N303SY · EMBRAER ERJ-170-200 (long wing) · operated by SKYWEST AIRLINES INC

Hex
A32C1E
Octal
50626036
Decimal
10,693,662
Country
US
Tail
N303SY
Type
E75L
No current signal · last broadcast 2h ago
Flights observed
650
Distinct callsigns
20
Country
US
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S A32C1E.

Country allocation

The ICAO 24-bit address A32C1E 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
SKW4125 - 12 2026-07-11
SKW3891 - 11 2026-06-30
SKW4141 - 10 2026-07-03
SKW123J - 10 2026-07-02
SKW3857 SkyWest Airlines 9 2026-05-10
SKW3820 SkyWest Airlines 9 2026-06-05
SKW3786 SkyWest Airlines 9 2026-07-05
SKW3736 SkyWest Airlines 9 2026-07-08
SKW4128 - 8 2026-06-30
SKW4062 - 8 2026-07-02
SKW3897 - 8 2026-07-09
SKW3869 SkyWest Airlines 8 2026-04-21
SKW3852 - 8 2026-06-27
SKW3832 - 8 2026-06-28
SKW3748 SkyWest Airlines 8 2026-07-10
SKW3718 - 8 2026-06-26
SKW4443 SkyWest Airlines 7 2026-06-16
SKW3855 - 7 2026-06-30
SKW3727 - 7 2026-06-24
SKW142Y - 7 2026-07-10

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 SKW4446 - Jul 14, 03:05 UTCJul 14, 03:50 UTC45m
2026-07-13 SKW4105 EUG → SLC Jul 13, 23:55 UTCJul 14, 01:40 UTC1h 45m
2026-07-13 SKW4105 SLC → EUG Jul 13, 21:15 UTCJul 13, 23:00 UTC1h 45m
2026-07-13 SKW4084 ABQ → SLC Jul 13, 18:50 UTCJul 13, 20:00 UTC1h 10m
2026-07-13 SKW4084 - Jul 13, 16:15 UTCJul 13, 17:30 UTC1h 15m
2026-07-13 SKW4061 OAK → SLC Jul 13, 13:05 UTCJul 13, 14:35 UTC1h 30m
2026-07-13 SKW3797 SLC → OAK Jul 13, 05:15 UTCJul 13, 06:45 UTC1h 30m
2026-07-13 SKW3797 SLC → OAK Jul 13, 05:04 UTCJul 13, 06:38 UTC1h 34m
2026-07-13 SKW3676 SLC → SLC Jul 13, 00:01 UTCJul 13, 02:50 UTC2h 50m
2026-07-12 SKW4155 EUG → SLC Jul 12, 21:00 UTCJul 12, 22:50 UTC1h 50m
2026-07-12 SKW4149 SEA → EUG Jul 12, 18:40 UTCJul 12, 19:40 UTC1h 0m
2026-07-12 SKW3781 MFR → SEA Jul 12, 13:20 UTCJul 12, 14:15 UTC55m
2026-07-12 SKW3954 SEA → MFR Jul 12, 05:01 UTCJul 12, 06:10 UTC1h 10m
2026-07-12 SKW3954 SEA → MFR Jul 12, 04:48 UTCJul 12, 06:09 UTC1h 21m
2026-07-12 SKW3887 - Jul 12, 02:55 UTCJul 12, 03:25 UTC30m
2026-07-12 SKW132K SEA → YVR Jul 12, 00:50 UTCJul 12, 01:20 UTC30m
2026-07-11 SKW4125 SMF → SEA Jul 11, 20:10 UTCJul 11, 21:40 UTC1h 30m
2026-07-11 SKW4125 SMF → SEA Jul 11, 20:11 UTCJul 11, 21:35 UTC1h 24m
2026-07-11 SKW4125 SEA → SMF Jul 11, 17:20 UTCJul 11, 18:55 UTC1h 35m
2026-07-11 SKW3816 ONT → SEA Jul 11, 13:25 UTCJul 11, 15:35 UTC2h 10m
2026-07-11 SKW3816 ONT → SEA Jul 11, 13:29 UTCJul 11, 15:22 UTC1h 53m
2026-07-11 SKW3884 - Jul 11, 03:15 UTCJul 11, 05:35 UTC2h 20m
2026-07-10 SKW142Y YVR → SEA Jul 10, 22:51 UTCJul 10, 23:29 UTC38m
2026-07-10 SKW142Y YVR → SEA Jul 10, 23:00 UTCJul 10, 23:30 UTC30m
2026-07-10 SKW3748 SJC → SEA Jul 10, 20:47 UTCJul 10, 21:18 UTC31m
2026-07-10 SKW3748 SJC → SEA Jul 10, 20:55 UTCJul 10, 21:30 UTC35m
2026-07-10 SKW3818 SEA → PDX Jul 10, 18:25 UTCJul 10, 18:55 UTC30m
2026-07-10 SKW3818 SEA → PDX Jul 10, 16:45 UTCJul 10, 17:15 UTC30m
2026-07-10 SKW3816 - Jul 10, 13:25 UTCJul 10, 15:40 UTC2h 15m
2026-07-10 SKW3884 - Jul 10, 03:10 UTCJul 10, 05:20 UTC2h 10m
2026-07-10 SKW3884 SEA → ONT Jul 10, 03:13 UTCJul 10, 05:15 UTC2h 2m
2026-07-09 SKW142Y YVR → SEA Jul 9, 22:50 UTCJul 9, 23:15 UTC25m
2026-07-09 SKW3748 SJC → SEA Jul 9, 21:20 UTCJul 9, 21:30 UTC10m
2026-07-09 SKW3748 SJC → SEA Jul 9, 20:49 UTCJul 9, 21:44 UTC55m
2026-07-09 SKW3818 SEA → PDX Jul 9, 18:25 UTCJul 9, 19:00 UTC35m
2026-07-09 SKW3818 SEA → PDX Jul 9, 17:05 UTCJul 9, 17:35 UTC30m
2026-07-09 SKW3987 YVR → SEA Jul 9, 14:33 UTCJul 9, 15:11 UTC38m
2026-07-09 SKW3987 YVR → SEA Jul 9, 14:45 UTCJul 9, 15:25 UTC40m
2026-07-09 SKW162Z SEA → YVR Jul 9, 05:05 UTCJul 9, 05:45 UTC40m
2026-07-09 SKW3897 SJC → SEA Jul 9, 01:13 UTCJul 9, 02:55 UTC1h 42m
2026-07-09 SKW3897 SJC → SEA Jul 9, 01:10 UTCJul 9, 03:00 UTC1h 50m
2026-07-08 SKW3897 SEA → SJC Jul 8, 22:05 UTCJul 8, 23:50 UTC1h 45m
2026-07-08 SKW3736 SJC → SEA Jul 8, 18:40 UTCJul 8, 20:30 UTC1h 50m
2026-07-08 SKW3736 SJC → SEA Jul 8, 15:55 UTCJul 8, 17:45 UTC1h 50m
2026-07-08 SKW118R - Jul 8, 12:55 UTCJul 8, 14:05 UTC1h 10m
2026-07-08 SKW4148 - Jul 8, 04:15 UTCJul 8, 04:30 UTC15m
2026-07-08 SKW4148 - Jul 8, 03:00 UTCJul 8, 03:45 UTC45m
2026-07-08 SKW4148 LAX → BOI Jul 8, 03:06 UTCJul 8, 04:26 UTC1h 20m
2026-07-07 SKW3799 - Jul 7, 23:25 UTCJul 8, 01:40 UTC2h 15m
2026-07-07 SKW3794 - Jul 7, 20:15 UTCJul 7, 22:20 UTC2h 5m

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 N303SY page for operator, model, and routing details .

Mode-S A32C1E frequently asked

What is Mode-S code A32C1E?
A32C1E is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N303SY.
Where is Mode-S A32C1E registered?
Mode-S code A32C1E 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 A32C1E broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A32C1E, octal 50626036, decimal 10,693,662.
What flights does A32C1E operate?
Mode-S A32C1E has broadcast 20 distinct callsigns, including SKW4125, SKW3891, SKW4141, SKW123J, SKW3857.