sensors Mode-S transponder

AE54F5

ICAO 24-bit transponder address

Currently assigned to 166227 · Raytheon T-6B Texan II

Hex
AE54F5
Octal
53452365
Decimal
11,425,013
Tail
166227
Type
TEX2
No current signal · last broadcast 23h ago
Flights observed
5
Distinct callsigns
1
Country
-
Last broadcast
23h ago

Last known position

Most recent position reported by Mode-S AE54F5.

Callsign history 1 distinct

Callsign Airline Flights Last seen
SH227 - 5 2026-04-13

Recent flights last 5

DateFlightRouteTakeoffLandingDuration
2026-04-13 SH227 - Apr 13, 23:30 UTCApr 13, 23:40 UTC10m
2026-04-13 SH227 - Apr 13, 21:10 UTCApr 13, 21:45 UTC35m
2026-04-13 SH227 - Apr 13, 20:10 UTCApr 13, 20:30 UTC20m
2026-04-12 SH227 - Apr 12, 19:00 UTCApr 12, 19:15 UTC15m
2026-04-12 SH227 - Apr 12, 18:10 UTCApr 12, 18:30 UTC20m

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 166227 page for operator, model, and routing details .

Mode-S AE54F5 frequently asked

What is Mode-S code AE54F5?
AE54F5 is an ICAO 24-bit transponder address. Assigned to 166227.
Is AE54F5 broadcasting right now?
No active broadcast right now. Last signal was 23h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AE54F5, octal 53452365, decimal 11,425,013.
What flights does AE54F5 operate?
Mode-S AE54F5 has broadcast 1 distinct callsign, including SH227.