Apparatus

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sensors Mode-S transponder

A37765

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N322SY · operated by SKYWEST AIRLINES INC

Hex
A37765
Octal
50673545
Decimal
10,712,933
Country
US
Tail
N322SY
Type
E75L
No current signal · last broadcast 14m ago
Flights observed
610
Distinct callsigns
20
Country
US
Last broadcast
14m ago

Last known position

Most recent position reported by Mode-S A37765.

Country allocation

The ICAO 24-bit address A37765 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
SKW3699 - 12 2026-06-25
SKW4101 - 10 2026-07-06
SKW3813 - 10 2026-07-10
SKW3526 - 10 2026-07-10
SKW3863 SkyWest Airlines 9 2026-04-30
SKW3501 SkyWest Airlines 9 2026-06-02
SKW197F - 9 2026-06-24
SKW4005 - 8 2026-06-24
SKW3660 SkyWest Airlines 8 2026-06-04
SKW4063 - 7 2026-07-04
SKW4035 SkyWest Airlines 7 2026-06-03
SKW3989 SkyWest Airlines 7 2026-06-04
SKW3981 SkyWest Airlines 7 2026-04-29
SKW3926 SkyWest Airlines 7 2026-05-27
SKW3848 - 7 2026-07-03
SKW3823 - 7 2026-06-23
SKW3707 - 7 2026-06-30
SKW182J - 7 2026-06-24
SKW4447 SkyWest Airlines 6 2026-05-03
SKW4444 SkyWest Airlines 6 2026-07-02

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 SKW3759 - Jul 14, 01:50 UTCJul 14, 02:50 UTC1h 0m
2026-07-13 SKW3822 SJC → LAX Jul 13, 23:35 UTCJul 14, 00:35 UTC1h 0m
2026-07-13 SKW3822 - Jul 13, 21:40 UTCJul 13, 22:25 UTC45m
2026-07-13 SKW3951 - Jul 13, 19:50 UTCJul 13, 20:45 UTC55m
2026-07-13 SKW3951 - Jul 13, 17:45 UTCJul 13, 18:50 UTC1h 5m
2026-07-13 SKW3696 - Jul 13, 13:45 UTCJul 13, 16:15 UTC2h 30m
2026-07-13 SKW3576 - Jul 13, 04:35 UTCJul 13, 06:30 UTC1h 55m
2026-07-13 SKW3712 SMF → LAX Jul 13, 02:15 UTCJul 13, 03:25 UTC1h 10m
2026-07-12 SKW3712 - Jul 12, 23:45 UTCJul 13, 00:45 UTC1h 0m
2026-07-12 SKW3812 - Jul 12, 21:30 UTCJul 12, 22:35 UTC1h 5m
2026-07-12 SKW3812 SMF → LAX Jul 12, 21:24 UTCJul 12, 22:33 UTC1h 9m
2026-07-12 SKW134F - Jul 12, 19:15 UTCJul 12, 20:15 UTC1h 0m
2026-07-12 SKW4451 SJC → LAX Jul 12, 17:01 UTCJul 12, 18:01 UTC1h 0m
2026-07-12 SKW4026 SLC → SJC Jul 12, 14:01 UTCJul 12, 15:30 UTC1h 30m
2026-07-12 SKW3820 ABQ → SLC Jul 12, 00:30 UTCJul 12, 01:45 UTC1h 15m
2026-07-12 SKW3820 ABQ → SLC Jul 12, 00:32 UTCJul 12, 01:50 UTC1h 18m
2026-07-11 SKW3820 SLC → ABQ Jul 11, 22:01 UTCJul 11, 23:20 UTC1h 20m
2026-07-11 SKW3833 - Jul 11, 19:30 UTCJul 11, 20:50 UTC1h 20m
2026-07-11 SKW3833 - Jul 11, 17:10 UTCJul 11, 18:25 UTC1h 15m
2026-07-11 SKW4029 - Jul 11, 13:40 UTCJul 11, 15:50 UTC2h 10m
2026-07-11 SKW4029 OKC → SLC Jul 11, 13:47 UTCJul 11, 15:45 UTC1h 58m
2026-07-10 SKW3791 MSP → OKC Jul 10, 23:30 UTCJul 11, 01:05 UTC1h 35m
2026-07-10 SKW3526 YWG → MSP Jul 10, 21:05 UTCJul 10, 22:10 UTC1h 5m
2026-07-10 SKW3526 YWG → MSP Jul 10, 21:13 UTCJul 10, 22:05 UTC52m
2026-07-10 SKW192E MSP → YWG Jul 10, 18:45 UTCJul 10, 19:50 UTC1h 5m
2026-07-10 SKW3813 AUS → MSP Jul 10, 15:10 UTCJul 10, 17:25 UTC2h 15m
2026-07-10 SKW4015 - Jul 10, 11:50 UTCJul 10, 14:20 UTC2h 30m
2026-07-10 SKW3731 AUS → IND Jul 10, 00:25 UTCJul 10, 02:45 UTC2h 20m
2026-07-09 SKW4053 - Jul 9, 22:40 UTCJul 9, 23:30 UTC50m
2026-07-09 SKW4053 - Jul 9, 20:15 UTCJul 9, 21:05 UTC50m
2026-07-09 SKW3747 PHX → AUS Jul 9, 17:05 UTCJul 9, 19:10 UTC2h 5m
2026-07-09 SKW3747 AUS → PHX Jul 9, 13:35 UTCJul 9, 15:30 UTC1h 55m
2026-07-09 SKW3577 - Jul 9, 00:55 UTCJul 9, 02:15 UTC1h 20m
2026-07-08 SKW3577 - Jul 8, 22:50 UTCJul 9, 00:20 UTC1h 30m
2026-07-08 SKW3772 - Jul 8, 18:45 UTCJul 8, 20:55 UTC2h 10m
2026-07-08 SKW107K - Jul 8, 15:30 UTCJul 8, 17:45 UTC2h 15m
2026-07-08 SKW4146 BNA → AUS Jul 8, 12:25 UTCJul 8, 14:15 UTC1h 50m
2026-07-08 SKW4163 AUS → BNA Jul 8, 00:10 UTCJul 8, 01:50 UTC1h 40m
2026-07-08 SKW4163 AUS → BNA Jul 8, 00:08 UTCJul 8, 01:50 UTC1h 42m
2026-07-07 SKW4028 - Jul 7, 18:10 UTCJul 7, 20:35 UTC2h 25m
2026-07-07 SKW4028 AUS → CMH Jul 7, 14:45 UTCJul 7, 17:10 UTC2h 25m
2026-07-07 SKW4088 - Jul 7, 12:05 UTCJul 7, 13:30 UTC1h 25m
2026-07-07 SKW3952 - Jul 7, 02:20 UTCJul 7, 04:00 UTC1h 40m
2026-07-06 SKW4027 IND → AUS Jul 6, 22:50 UTCJul 7, 01:20 UTC2h 30m
2026-07-06 SKW4027 IND → AUS Jul 6, 22:43 UTCJul 7, 01:15 UTC2h 32m
2026-07-06 SKW4027 AUS → IND Jul 6, 19:10 UTCJul 6, 21:40 UTC2h 30m
2026-07-06 SKW4101 - Jul 6, 15:45 UTCJul 6, 18:00 UTC2h 15m
2026-07-06 SKW4101 AUS → IND Jul 6, 12:25 UTCJul 6, 14:30 UTC2h 5m
2026-07-05 SKW3772 - Jul 5, 22:50 UTCJul 6, 01:05 UTC2h 15m
2026-07-05 SKW107K - Jul 5, 19:25 UTCJul 5, 21:45 UTC2h 20m

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 N322SY page for operator, model, and routing details .

Mode-S A37765 frequently asked

What is Mode-S code A37765?
A37765 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N322SY.
Where is Mode-S A37765 registered?
Mode-S code A37765 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 A37765 broadcasting right now?
No active broadcast right now. Last signal was 14m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A37765, octal 50673545, decimal 10,712,933.
What flights does A37765 operate?
Mode-S A37765 has broadcast 20 distinct callsigns, including SKW3699, SKW4101, SKW3813, SKW3526, SKW3863.