Can we search someone on Instagram by phone number?
You can find people on Instagram by their phone number. But the search will be successful only if the person's account is connected with the number. Besides, be ready to sync your page with the list of your contacts. It means you can be found in the same way.
How do I find an account by phone number?
Just go to Google and type in “reverse number lookup” or “reverse phone lookup”. Click on one of the websites in the search results. Enter the phone number. You may even find their Facebook account this way!