Autofilter Phone Number

I am building a contact database in excel. I am using a userform to search, by autofilter, through several thousand contacts by any one of 7 criteria(account name, postal code,, account number, etc.). The only criteria that I cannot get to work is the phone number.

The numbers are entered in a ten digit string and the cells are formatted as phone numbers. i.e: 8005551212 = (800) 555-1212. When I run the search by the 10 digit number, the autofilter hides all results.