Users may look up a cellphone number at spydialer.com/CellOptions.aspx. The website is free as of January 2016. To use it, enter a number, and click on the Search button, or simply hit Enter.
Visitors to Spy Dialer are given three options when looking up a phone number. They may either hear a voicemail, or perform a name or a photo lookup. The name lookup provides users with a last name. Spy Dialer searches social networking sites when performing a photo lookup. If no photo can be found, the website only provides a photo of the town in which the owner of the cellphone resides.