sensors Mode-S transponder

A369E7

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N319SY · operated by SKYWEST AIRLINES INC

Hex
A369E7
Octal
50664747
Decimal
10,709,479
Country
US
Tail
N319SY
Type
E75L
No current signal · last broadcast 23h ago
Flights observed
11
Distinct callsigns
6
Country
US
Last broadcast
23h ago

Last known position

Most recent position reported by Mode-S A369E7.

Country allocation

The ICAO 24-bit address A369E7 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 6 distinct

Callsign Airline Flights Last seen
SKW3694 - 4 2026-04-13
SKW4054 - 3 2026-04-13
SKW3932 - 1 2026-04-12
SKW3840 - 1 2026-04-13
SKW3776 - 1 2026-04-13
SKW3502 - 1 2026-04-13

Recent flights last 11

DateFlightRouteTakeoffLandingDuration
2026-04-13 SKW3776 - Apr 13, 22:35 UTCApr 13, 23:45 UTC1h 10m
2026-04-13 SKW3694 - Apr 13, 19:50 UTCApr 13, 21:30 UTC1h 40m
2026-04-13 SKW3694 - Apr 13, 19:05 UTCApr 13, 20:10 UTC1h 5m
2026-04-13 SKW3694 - Apr 13, 16:15 UTCApr 13, 17:50 UTC1h 35m
2026-04-13 SKW3694 - Apr 13, 16:05 UTCApr 13, 16:15 UTC10m
2026-04-13 SKW3502 - Apr 13, 13:20 UTCApr 13, 14:35 UTC1h 15m
2026-04-13 SKW4054 - Apr 13, 04:20 UTCApr 13, 05:15 UTC55m
2026-04-13 SKW4054 - Apr 13, 03:55 UTCApr 13, 05:15 UTC1h 20m
2026-04-13 SKW4054 - Apr 13, 03:39 UTCApr 13, 05:10 UTC1h 31m
2026-04-13 SKW3840 - Apr 13, 00:20 UTCApr 13, 02:35 UTC2h 15m
2026-04-12 SKW3932 ABQ → SLC Apr 12, 18:40 UTCApr 12, 20:00 UTC1h 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 N319SY page for operator, model, and routing details .

Mode-S A369E7 frequently asked

What is Mode-S code A369E7?
A369E7 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N319SY.
Where is Mode-S A369E7 registered?
Mode-S code A369E7 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 A369E7 broadcasting right now?
No active broadcast right now. Last signal was 23h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A369E7, octal 50664747, decimal 10,709,479.
What flights does A369E7 operate?
Mode-S A369E7 has broadcast 6 distinct callsigns, including SKW3694, SKW4054, SKW3932, SKW3840, SKW3776.