https://www.zabasearch.com/reverse-phone-lookup/
Zabasearch is one of the best Reverse Phone Number Lookup(s) because it's 100% free* to search. No credit card or registration is required.

https://www.in.gov/core/mobile/find-person.html
You are also able to do a reverse phone search using the last four digits of a phone number.

https://indiana.phonenumbers.org/
Indiana does not consider using phone lookup searches as illegal even though it has no specific laws discussing the legality of reverse phone number services.