NumberRecords.com offers a free service that allows people to post phone numbers that harassed, scammed or bullied them in any way in an aim to warn others.

Helping people identify the names behind anonymous, unwanted calls, PhoneNumbersInfo.com is a new reverse phone number lookup system that provides comprehensive information and phone number reporting.

ReverseTheNumber.com is the newest website to offer reverse phone lookup service in North America, while allowing individuals to post or find existing complaints about a particular phone number.