sensors Mode-S transponder

A593BE

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N459CA · operated by CIVIL AIR PATROL

Hex
A593BE
Octal
51311676
Decimal
10,851,262
Country
US
Tail
N459CA
Type
C172
Broadcasting now · callsign CAP2745 · 2,900 ft
Flights observed
6
Distinct callsigns
1
Country
US
Last broadcast
1d ago

Current position

A593BE is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A593BE 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 1 distinct

Callsign Airline Flights Last seen
CAP2745 - 6 2026-04-13

Recent flights last 6

DateFlightRouteTakeoffLandingDuration
2026-04-13 CAP2745 - Apr 13, 19:50 UTCApr 13, 19:55 UTC5m
2026-04-13 CAP2745 VGT → VGT Apr 13, 18:55 UTCApr 13, 19:55 UTC1h 0m
2026-04-13 CAP2745 - Apr 13, 16:15 UTCApr 13, 16:25 UTC10m
2026-04-13 CAP2745 - Apr 13, 15:50 UTCApr 13, 16:25 UTC35m
2026-04-13 CAP2745 - Apr 13, 15:40 UTCApr 13, 16:15 UTC35m
2026-04-13 CAP2745 - Apr 13, 14:25 UTCApr 13, 14:55 UTC30m

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 N459CA page for operator, model, and routing details .

Mode-S A593BE frequently asked

What is Mode-S code A593BE?
A593BE is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N459CA.
Where is Mode-S A593BE registered?
Mode-S code A593BE 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 A593BE broadcasting right now?
Yes. Mode-S A593BE is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A593BE, octal 51311676, decimal 10,851,262.
What flights does A593BE operate?
Mode-S A593BE has broadcast 1 distinct callsign, including CAP2745.