Searching for someone on Instagram is really a headache. Among millions of people, you have to choose anyone. However, Instagram allows you to search for someone in two ways. The first is to search by username and the second one is to search from their numbers. Almost everyone knows about the first one but some used to ask how to search Instagram by phone number. To search Instagram by phone number open your account and in the suggestions click on “See All” next to discover people. There you will see your contacts on Instagram.