Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

AE1123

ICAO 24-bit transponder address

Hex
AE1123
Octal
53410443
Decimal
11,407,651
No current signal · last broadcast 3d ago
Flights observed
3
Distinct callsigns
3
Country
-
Last broadcast
3d ago

Last known position

Most recent position reported by Mode-S AE1123.

Callsign history 3 distinct

Callsign Airline Flights Last seen
TIGER73 - 1 2026-04-15
TIGER30 - 1 2026-04-13
BEAK41 - 1 2026-04-14

Recent flights last 3

DateFlightRouteTakeoffLandingDuration
2026-04-15 TIGER73 - Apr 15, 19:40 UTCApr 15, 20:20 UTC40m
2026-04-14 BEAK41 - Apr 14, 16:05 UTCApr 14, 16:25 UTC20m
2026-04-13 TIGER30 - Apr 13, 14:25 UTCApr 13, 15:05 UTC40m

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.

Mode-S AE1123 frequently asked

What is Mode-S code AE1123?
AE1123 is an ICAO 24-bit transponder address.
Is AE1123 broadcasting right now?
No active broadcast right now. Last signal was 3d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AE1123, octal 53410443, decimal 11,407,651.
What flights does AE1123 operate?
Mode-S AE1123 has broadcast 3 distinct callsigns, including TIGER73, TIGER30, BEAK41.