sensors Mode-S transponder

AE5A7D

ICAO 24-bit transponder address

Currently assigned to 15-72401 · Airbus Helicopters UH-72A Lakota

Hex
AE5A7D
Octal
53455175
Decimal
11,426,429
Tail
15-72401
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 AE5A7D.

Callsign history 2 distinct

Callsign Airline Flights Last seen
SAVER07 - 2 2026-04-13
MESSY16 - 2 2026-04-14

Recent flights last 4

DateFlightRouteTakeoffLandingDuration
2026-04-14 MESSY16 - Apr 14, 15:05 UTCApr 14, 15:40 UTC35m
2026-04-14 MESSY16 - Apr 14, 12:55 UTCApr 14, 13:55 UTC1h 0m
2026-04-13 SAVER07 - Apr 13, 19:55 UTCApr 13, 20:10 UTC15m
2026-04-13 SAVER07 - Apr 13, 18:15 UTCApr 13, 19:10 UTC55m

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 15-72401 page for operator, model, and routing details .

Mode-S AE5A7D frequently asked

What is Mode-S code AE5A7D?
AE5A7D is an ICAO 24-bit transponder address. Assigned to 15-72401.
Is AE5A7D 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 AE5A7D, octal 53455175, decimal 11,426,429.
What flights does AE5A7D operate?
Mode-S AE5A7D has broadcast 2 distinct callsigns, including SAVER07, MESSY16.