With a massive list of numbers around the country... the possible number of groupings is limitless So, if you've been trying to find a specific telephone number that starts with a 831-623 area code exchange, you you now can. With the help of reverselookupphonedirectory.com, all you must do to get information on someone with a 831-623 is enter their complete nine digit telephone numberr into the given search box. that's all you need to get started on your search. The days of scouring for background information from multiple sources are done.