Two 120 volt wires and a grounded neutral wire feed the meter through the weather head. The utility company is responsible for power to the meter and the homeowner takes it from there.
The service from the utility company to the meter is always live unless they come and turn it off. If there appears to be a problem on their side of the meter, don’t hesitate to call them to repair the problem. They have special equipment for just such repairs. Never attempt to work on their side of the meter, ever!