Many utilities drop a 220V service because the meters are set to operate at 220V, mostly.  A link in back of the meter can be opened so it operates on 120V only, but if not marked, a person can install one on a 220V service and only half the usage gets measured, so, most utilities ignore the 120V service and wire everything 220V to the meter.

You are right on another post below.  In depth discussion of electricity without proper backgrounding can lead those less knowledgable into utter chaos and likelyhood of doing something wrong unintentionally.  That is why I try not to dig to deep into the subject on here as I do not know other posters qualifications.

Hey it is Memorial Day.  Let's all chill with a beverage of our choice and enjoy the weather.