With the increasing prevalence of robocalls and spam, it has become more important than ever to be able to identify unknown numbers before answering. There are a few different ways to do this, but one of the most effective is to use a reverse phone lookup service. These services allow you to enter an unknown number and get back information about who owns it, where they are located, and whether or not they have been reported as spam.
There are a number of different reverse phone lookup services available, both free and paid. Some of the most popular free services include: