sensors Mode-S transponder

A7DEA2

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N606MF · CIRRUS SR-22 · operated by ADMIRAL AVIATION HOLDINGS LP

Hex
A7DEA2
Octal
51757242
Decimal
11,001,506
Country
US
Tail
N606MF
Type
SR22
No current signal · last broadcast 17h ago
Flights observed
5
Distinct callsigns
3
Country
US
Last broadcast
17h ago

Last known position

Most recent position reported by Mode-S A7DEA2.

Country allocation

The ICAO 24-bit address A7DEA2 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 3 distinct

Callsign Airline Flights Last seen
AXO302 - 3 2026-04-13
AXO930 - 1 2026-04-13
AXO606 - 1 2026-04-14

Recent flights last 5

DateFlightRouteTakeoffLandingDuration
2026-04-14 AXO606 - Apr 14, 05:15 UTCApr 14, 06:00 UTC45m
2026-04-13 AXO930 - Apr 13, 23:25 UTCApr 13, 23:45 UTC20m
2026-04-13 AXO302 - Apr 13, 21:55 UTCApr 13, 22:55 UTC1h 0m
2026-04-13 AXO302 - Apr 13, 19:45 UTCApr 13, 20:10 UTC25m
2026-04-13 AXO302 - Apr 13, 17:10 UTCApr 13, 17:45 UTC35m

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 N606MF page for operator, model, and routing details .

Mode-S A7DEA2 frequently asked

What is Mode-S code A7DEA2?
A7DEA2 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N606MF.
Where is Mode-S A7DEA2 registered?
Mode-S code A7DEA2 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 A7DEA2 broadcasting right now?
No active broadcast right now. Last signal was 17h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A7DEA2, octal 51757242, decimal 11,001,506.
What flights does A7DEA2 operate?
Mode-S A7DEA2 has broadcast 3 distinct callsigns, including AXO302, AXO930, AXO606.