Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

AE7803

ICAO 24-bit transponder address

Currently assigned to 21-30802

Hex
AE7803
Octal
53474003
Decimal
11,433,987
Tail
21-30802
Type
H500
No current signal · last broadcast 1d ago
Flights observed
2
Distinct callsigns
1
Country
-
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S AE7803.

Callsign history 1 distinct

Callsign Airline Flights Last seen
CARNY38 - 2 2026-04-13

Recent flights last 2

DateFlightRouteTakeoffLandingDuration
2026-04-13 CARNY38 HOP → HOP Apr 13, 16:40 UTCApr 13, 17:10 UTC30m
2026-04-13 CARNY38 HOP → HOP Apr 13, 15:05 UTCApr 13, 15:35 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 21-30802 page for operator, model, and routing details .

Mode-S AE7803 frequently asked

What is Mode-S code AE7803?
AE7803 is an ICAO 24-bit transponder address. Assigned to 21-30802.
Is AE7803 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 AE7803, octal 53474003, decimal 11,433,987.
What flights does AE7803 operate?
Mode-S AE7803 has broadcast 1 distinct callsign, including CARNY38.