What's the possibility of have the phone numbers and area codes seperated in the review forms. The reason I ask is many times I will try and search a provider by phone number and depending on how the reviewer enters the digits will determine if you get a hit or not. If a dialogue box was provided for the area code and another box for the number you could search for a specific 7 digit number. TER has this entry system and it works very well. Here are some of the ways I've seen numbers entered.
(512)555-1234
(512) 555-1234
512-555-1234
512 555-1234
555-1234
Each one of these requires a new search.
Thanks.
PS: This is a great site and it keeps getting better.