Truecaller is a mobile and desktop app with over million users worldwide. Users can filter, block and report spam phone numbers with just a few clicks. Visit the Truecaller website and enter the phone number in the designated field. Click Search, and then sign in with your Google or Microsoft account. Another option is to install the app on your mobile phone for easier access. There are a number of online databases similar to White Pages.
I lost my cell phone and can’t remember which company provides my service. How can I figure it out?
Depending on your preferences, you can try Search Bug, Text Magic and other services. Users can do a business phone number lookup for free.