Reverse Lookup funktioniert nicht

Reverse Lookup is a FREE reverse phone lookup app for iOS devices that retrieves all available information, including the name, associated with a phone number.  Reverse Lookup will query the latest phone directory and retrieve information associated with that phone number.  Hopefully, you will find this phone number information finder tool useful.  To use this app, you have to enter a valid 10-digit phone number, then lookup that number.  Currently, it works for cell, landline, toll-free, and fax phone numbers from the United States and Canada.  This app also ensures that it has the most recent and reliable data for that particular number before displaying the result.  This app is a handy tool to identify unknown callers.  Please help grow this app by sharing it with your friends and family.