https://www.geeksforgeeks.org/reverse-phone-number-lookup/
Zlookup is a reverse phone lookup service designed for international phone numbers. It allows users to search for both landlines and mobile ...

https://www.truepeoplesearch.com/reverse-phone-lookup
Search billions of public records! Get name, address history, all phone numbers, relatives, associates, email addresses & more for free!

https://www.t-mobile.com/community/discussions/accounts-services/reverse-phone-number-lookup/68890
How do I check the information of a suspicious phone number, such as name and location?