Yes, Home. You're just a few clicks away from locating your customers via their phone numbers. You can either search for a customer's phone number directly in the search bar located in the upper right of your QuickBooks Online dashboard, or navigate to All Apps, select Customer Hub, and click Customers. From there, you can also use the search bar to find a specific number associated with your customers.
I'll also share these articles in case you'd like to update your customers' information or create sales transactions once you've located them:
Feel free to reply to this post if you need further assistance.