If a 10-digit number of (212) 867-5309 was dialed, the 7-digit pattern would match and the first 7 digits of the call 212-8675 would be attempted. The easy fix to the previous challenge in major ...

In many parts of the US, it has long been possible to make local calls with just the seven-digit phone number; the three-digit area code was implicit for calls between numbers using the same area code ...