sensors Mode-S transponder

AE1FEA

ICAO 24-bit transponder address

Currently assigned to 11-72219 · Airbus Helicopters UH-72A Lakota

Hex
AE1FEA
Octal
53417752
Decimal
11,411,434
Tail
11-72219
Type
EC45
No current signal · last broadcast 4d ago
Flights observed
4
Distinct callsigns
2
Country
-
Last broadcast
4d ago

Last known position

Most recent position reported by Mode-S AE1FEA.

Callsign history 2 distinct

Callsign Airline Flights Last seen
SAVER19 - 3 2026-04-14
MESSY13 - 1 2026-04-13

Recent flights last 4

DateFlightRouteTakeoffLandingDuration
2026-04-14 SAVER19 - Apr 14, 20:00 UTCApr 14, 20:35 UTC35m
2026-04-14 SAVER19 - Apr 14, 18:55 UTCApr 14, 19:25 UTC30m
2026-04-14 SAVER19 - Apr 14, 18:30 UTCApr 14, 18:45 UTC15m
2026-04-13 MESSY13 - Apr 13, 12:20 UTCApr 13, 12:45 UTC25m

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 11-72219 page for operator, model, and routing details .

Mode-S AE1FEA frequently asked

What is Mode-S code AE1FEA?
AE1FEA is an ICAO 24-bit transponder address. Assigned to 11-72219.
Is AE1FEA broadcasting right now?
No active broadcast right now. Last signal was 4d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AE1FEA, octal 53417752, decimal 11,411,434.
What flights does AE1FEA operate?
Mode-S AE1FEA has broadcast 2 distinct callsigns, including SAVER19, MESSY13.