I think you mean antioxidant.

Aluminum is very common for drops and for going from the meter to the breaker box. The problem was when it was used for general wiring. The connectors at wall sockets were not robust enough to handle the CTE mismatch.

Over the years better aluminum alloys and sockets have been developed. But they are not common for wiring from the panel box to the wall.

This should not be an issue on the type of connections used on a breaker box and a power meter. Those are a much more robust connection that deals with a CTE mismatch a lot better than the connections that originally were used past the breaker box.

IF your panel is rated CU/AL your fine. Inspecting the connections to make sure they are tight never hurts. Same goes for the connections at the meter head. If your worried paying an electrician to inspect your setup might be worthwhile.

On general wiring you would need sockets and switches rated CU/ALR. Since you only have aluminum on the service run that's not an issue.

I'm guessing that you have a 50 amp service? That might be a reason to upgrade.

Cable Brochure

Kevin