A new article sheds light on how easy or hard it is to find someone’s cell phone number online. This is because cell phone numbers are protected by privacy laws and are not published in any public phone books.

There is no cell phone number book that publishes people’s cell phone numbers or make cell phone numbers available to the public to lookup cell phone numbers free.

The largest private cell phone number directory is at the Cell Phone Registry. This cell phone directory was once restricted to law enforcement and licensed investigators. Only recently has the National Registry of Cellular Phone Numbers starting giving people access to cell phone records regardless of their status.