Everything else has an Import ID associated with it. In order to get a Phone Import ID, you have to created a query, go to import and 'create an import file' - but it gives you EVERY Phone Import ID for a set of constituents. Making it part of query (much like Constituent Import ID, Address Import ID, Constituent Code Import ID etc), will be a huge help when we have to inactivate certain numbers - but vary by phone type for different constituents.