On the site, you are able to enter a 10-digit phone number and it will look for through “billions of records” to give you information like names related to the number, as well as the location in the number. I just tried using spydialer for two cell phone numbers https://spy-dialer-phone-lookup87664.blogdanica.com/32376130/the-2-minute-rule-for-number-lookup-spy-dialer