sensors Mode-S transponder

A75AC7

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N573NN · BOMBARDIER Regional Jet CRJ-900 · operated by AMERICAN AIRLINES INC

Hex
A75AC7
Octal
51655307
Decimal
10,967,751
Country
US
Tail
N573NN
Type
CRJ9
No current signal · last broadcast 12h ago
Flights observed
12
Distinct callsigns
6
Country
US
Last broadcast
12h ago

Last known position

Most recent position reported by Mode-S A75AC7.

Country allocation

The ICAO 24-bit address A75AC7 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
JIA5336 PSA Airlines 5 2026-04-13
JIA5470 - 2 2026-04-13
JIA5108 PSA Airlines 2 2026-04-12
JIA5596 - 1 2026-04-13
JIA5530 - 1 2026-04-13
JIA5485 PSA Airlines 1 2026-04-14

Recent flights last 12

DateFlightRouteTakeoffLandingDuration
2026-04-14 JIA5485 CHS → PHL Apr 14, 10:18 UTCApr 14, 11:38 UTC1h 20m
2026-04-13 JIA5596 - Apr 13, 21:40 UTCApr 13, 22:45 UTC1h 5m
2026-04-13 JIA5336 CLT → IAD Apr 13, 19:50 UTCApr 13, 20:25 UTC35m
2026-04-13 JIA5336 CLT → IAD Apr 13, 18:20 UTCApr 13, 20:08 UTC1h 48m
2026-04-13 JIA5336 CLT → IAD Apr 13, 18:28 UTCApr 13, 20:24 UTC1h 56m
2026-04-13 JIA5336 CLT → IAD Apr 13, 16:15 UTCApr 13, 17:45 UTC1h 30m
2026-04-13 JIA5336 CLT → IAD Apr 13, 16:05 UTCApr 13, 16:15 UTC10m
2026-04-13 JIA5470 - Apr 13, 13:50 UTCApr 13, 14:20 UTC30m
2026-04-13 JIA5470 - Apr 13, 12:56 UTCApr 13, 13:34 UTC38m
2026-04-13 JIA5530 - Apr 13, 01:15 UTCApr 13, 02:35 UTC1h 20m
2026-04-12 JIA5108 CLE → PHL Apr 12, 23:55 UTCApr 13, 00:00 UTC5m
2026-04-12 JIA5108 CLE → PHL Apr 12, 18:45 UTCApr 12, 20:15 UTC1h 30m

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 N573NN page for operator, model, and routing details .

Mode-S A75AC7 frequently asked

What is Mode-S code A75AC7?
A75AC7 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N573NN.
Where is Mode-S A75AC7 registered?
Mode-S code A75AC7 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 A75AC7 broadcasting right now?
No active broadcast right now. Last signal was 12h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A75AC7, octal 51655307, decimal 10,967,751.
What flights does A75AC7 operate?
Mode-S A75AC7 has broadcast 6 distinct callsigns, including JIA5336, JIA5470, JIA5108, JIA5596, JIA5530.