This is what I know in my neck of the woods (rural Ontario Canada), MV is distributed at 44KV Delta (sometimes in pairs, it is not uncommon to see six 44KV lines along major routes), that go directly to large industry, or substations down to 4-7 KV Wye (4KV for urban, 7KV for rural), either single, 3, or sometomes even 2/3 phases.
