Post a New Question


posted by .

Beginning in 1995, three digit area codes could begin with any number except 0 or 1. The middle and last number were not limited. How many area codes became available. I know the answer is 640 but I don't know how to explain that answer.


    NEVERMIND, I used common sense

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

More Related Questions

Post a New Question