A virtual number is a telephone number that will ring your phone when someone calls it. Since most phone providers give the domestic US as a local call, this is not as important unless you are getting an Alaskan number, or an international number. All callers will ring your cellular phone, and you would not be able to display your virtual number when calling them back. So therefore, your caller will know two numbers, the virtual number, and the main number. All virtual numbers will range from $5 – $10.