sensors Mode-S transponder

A622B0

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N495AE · BELL 407 · operated by AIR EVAC EMS INC

Hex
A622B0
Octal
51421260
Decimal
10,887,856
Country
US
Tail
N495AE
Type
B407
No current signal · last broadcast 20h ago
Flights observed
5
Distinct callsigns
1
Country
US
Last broadcast
20h ago

Last known position

Most recent position reported by Mode-S A622B0.

Country allocation

The ICAO 24-bit address A622B0 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
N495AE - 5 2026-04-14

Recent flights last 5

DateFlightRouteTakeoffLandingDuration
2026-04-14 N495AE - Apr 14, 07:45 UTCApr 14, 07:55 UTC10m
2026-04-13 N495AE - Apr 13, 23:00 UTCApr 13, 23:35 UTC35m
2026-04-13 N495AE - Apr 13, 22:20 UTCApr 13, 22:30 UTC10m
2026-04-13 N495AE - Apr 13, 21:25 UTCApr 13, 21:45 UTC20m
2026-04-13 N495AE - Apr 13, 02:15 UTCApr 13, 02:25 UTC10m

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 N495AE page for operator, model, and routing details .

Mode-S A622B0 frequently asked

What is Mode-S code A622B0?
A622B0 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N495AE.
Where is Mode-S A622B0 registered?
Mode-S code A622B0 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 A622B0 broadcasting right now?
No active broadcast right now. Last signal was 20h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A622B0, octal 51421260, decimal 10,887,856.
What flights does A622B0 operate?
Mode-S A622B0 has broadcast 1 distinct callsign, including N495AE.