sensors Mode-S transponder

A75359

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N571NN · BOMBARDIER Regional Jet CRJ-900 · operated by AMERICAN AIRLINES INC

Hex
A75359
Octal
51651531
Decimal
10,965,849
Country
US
Tail
N571NN
Type
CRJ9
No current signal · last broadcast 14h ago
Flights observed
9
Distinct callsigns
7
Country
US
Last broadcast
14h ago

Last known position

Most recent position reported by Mode-S A75359.

Country allocation

The ICAO 24-bit address A75359 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 7 distinct

Callsign Airline Flights Last seen
JIA5452 - 2 2026-04-13
JIA5088 - 2 2026-04-13
JIA5553 - 1 2026-04-13
JIA5383 - 1 2026-04-12
JIA5369 PSA Airlines 1 2026-04-13
JIA5311 - 1 2026-04-14
JIA5121 - 1 2026-04-13

Recent flights last 9

DateFlightRouteTakeoffLandingDuration
2026-04-14 JIA5311 - Apr 14, 10:24 UTCApr 14, 11:21 UTC57m
2026-04-13 JIA5369 DCA → BGR Apr 13, 22:45 UTCApr 13, 23:10 UTC25m
2026-04-13 JIA5553 - Apr 13, 20:32 UTCApr 13, 21:56 UTC1h 24m
2026-04-13 JIA5121 - Apr 13, 16:55 UTCApr 13, 19:04 UTC2h 9m
2026-04-13 JIA5452 - Apr 13, 15:50 UTCApr 13, 16:00 UTC10m
2026-04-13 JIA5452 - Apr 13, 13:30 UTCApr 13, 16:00 UTC2h 30m
2026-04-13 JIA5088 - Apr 13, 11:32 UTCApr 13, 12:14 UTC42m
2026-04-13 JIA5088 - Apr 13, 11:13 UTCApr 13, 11:54 UTC41m
2026-04-12 JIA5383 - Apr 12, 17:30 UTCApr 12, 18:50 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 N571NN page for operator, model, and routing details .

Mode-S A75359 frequently asked

What is Mode-S code A75359?
A75359 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N571NN.
Where is Mode-S A75359 registered?
Mode-S code A75359 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 A75359 broadcasting right now?
No active broadcast right now. Last signal was 14h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A75359, octal 51651531, decimal 10,965,849.
What flights does A75359 operate?
Mode-S A75359 has broadcast 7 distinct callsigns, including JIA5452, JIA5088, JIA5553, JIA5383, JIA5369.