sensors Mode-S transponder

E07543

ICAO 24-bit transponder address · allocated to Argentina

Currently assigned to LV-GUC · BOEING 737-800

Hex
E07543
Octal
70072503
Decimal
14,710,083
Country
AR
Tail
LV-GUC
Type
B738
No current signal · last broadcast 1d ago
Flights observed
6
Distinct callsigns
6
Country
AR
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S E07543.

Country allocation

The ICAO 24-bit address E07543 falls within the block assigned to Argentina (AR) by ICAO Annex 10, Volume III. Every aircraft registered in Argentina 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
ARG1787 Aerolineas Argentinas 1 2026-04-13
ARG1786 Aerolineas Argentinas 1 2026-04-13
ARG1514 Aerolineas Argentinas 1 2026-04-13
ARG1477 - 1 2026-04-12
ARG1423 - 1 2026-04-13
ARG1419 - 1 2026-04-13

Recent flights last 6

DateFlightRouteTakeoffLandingDuration
2026-04-13 ARG1787 IGR → AEP Apr 13, 22:50 UTCApr 13, 23:30 UTC40m
2026-04-13 ARG1786 EZE → IGR Apr 13, 20:15 UTCApr 13, 21:35 UTC1h 20m
2026-04-13 ARG1419 - Apr 13, 18:10 UTCApr 13, 18:30 UTC20m
2026-04-13 ARG1514 AEP → JUJ Apr 13, 10:25 UTCApr 13, 10:50 UTC25m
2026-04-13 ARG1423 - Apr 13, 01:10 UTCApr 13, 01:30 UTC20m
2026-04-12 ARG1477 - Apr 12, 19:25 UTCApr 12, 19:55 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 LV-GUC page for operator, model, and routing details .

Mode-S E07543 frequently asked

What is Mode-S code E07543?
E07543 is an ICAO 24-bit transponder address. Allocated to Argentina. Assigned to LV-GUC.
Where is Mode-S E07543 registered?
Mode-S code E07543 is allocated to Argentina (AR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is E07543 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex E07543, octal 70072503, decimal 14,710,083.
What flights does E07543 operate?
Mode-S E07543 has broadcast 6 distinct callsigns, including ARG1787, ARG1786, ARG1514, ARG1477, ARG1423.