Thanks for that link. I dropped their coverage chart into a spreadsheet to come up with 1,184,252,000 (surely estimated) people covered by their address data -

Thanks for that link. I dropped their coverage chart into a spreadsheet to come up with 1,184,252,000 (surely estimated) people covered by their address data - not to mention covered commercial addresses, which started this thread. My point was that there is enough green on that map, and enough obvious, critical demand, to make it a pretty fundamental feature for a mapping process, not that it would work most of the time.