sensors Mode-S transponder

AAC6E6

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N794AE · AIRBUS HELICOPTERS EC-135/635 · operated by AIR EVAC EMS INC

Hex
AAC6E6
Octal
52543346
Decimal
11,192,038
Country
US
Tail
N794AE
Type
EC35
No current signal · last broadcast 1d ago
Flights observed
2
Distinct callsigns
1
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S AAC6E6.

Country allocation

The ICAO 24-bit address AAC6E6 falls within the block assigned to United States (US) by ICAO Annex 10, Volume III. Every aircraft registered in United States receives a permanent address from this block at the time of registration; the address stays with the airframe even if the aircraft is re-registered to a different operator within the country.

Callsign history 1 distinct

Callsign Airline Flights Last seen
N794AE - 2 2026-04-13

Recent flights last 2

DateFlightRouteTakeoffLandingDuration
2026-04-13 N794AE - Apr 13, 22:00 UTCApr 13, 23:05 UTC1h 5m
2026-04-13 N794AE SUS → SUS Apr 13, 01:20 UTCApr 13, 03:00 UTC1h 40m

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 N794AE page for operator, model, and routing details .

Mode-S AAC6E6 frequently asked

What is Mode-S code AAC6E6?
AAC6E6 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N794AE.
Where is Mode-S AAC6E6 registered?
Mode-S code AAC6E6 is allocated to United States (US). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is AAC6E6 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 AAC6E6, octal 52543346, decimal 11,192,038.
What flights does AAC6E6 operate?
Mode-S AAC6E6 has broadcast 1 distinct callsign, including N794AE.