With a wide range of phone numbers in North America... the number of sequences is limitless So, if you've been looking for a certain phone number with a 818-678 area code exchange, you can. With the assistance of reverselookupphonedirectory.com, all you have to do to get information on someone with a 818-678 is enter the full nine digit phone numberr into the available search area. that's all you need to get started on your search. The days of scouring for background information from several sources are gone.