ReportedCalls is hosting complaints about phone calls and text messages received by the United States Federal Commissions. ReportedCalls helps people search and identify potential spam and scam phone numbers.
800 Notes - A place to complain anonymously about a Phone calls received from Bad Company. Consumer Protection.
Truecaller - Find a person by a name or phone number worldwide for free using Truecaller.
CallApp - Free Caller ID & Call Blocker app that allows mobile users to block phone calls, identify calls, blacklist unwanted callers and much more.
USCallers - USCallers.com is a free, reverse phone lookup service for both cell and landline phone numbers.
Nomorobo - Nomorobo blocks annoying robocalls, telemarketers, and phone scams.
Reverse Lookup - This iOS App helps users identify the caller based on the phone number. If any user receives a phone call from an unknown number, they can use this App to look up information on that caller.