With a wide range of telephone numbers in North America... the potential number of combonations is unmeasurable So, if you have been trying to find a certain number with a 530-639 area code exchange, you can. Thanks to reverselookupphonedirectory.com, all you have to do to get information on anyone with a 530-639 is type in the full nine digit numberr into the provided search area. That is all you need to begin your search. The days of looking for background information from multiple sources are over.