Match 10-digit phone number that mostly complies with NANP Modern Plan.
https://en.wikipedia.org/wiki/North_American_Numbering_Plan
Simple explanation:
Digit 1: must be between 2-9 Digit 2: must be between 0-8 Digit 3: any digit, but not the same as digit 2 Digit 4: must be between 2-9 Digit 5: any digit Digit 6: any digit, but must not be 1 if digit 5 is 1 Digits 7-10: any digit
What is missing: does not exclude matches for 555-0100 through 555-0199