You may use Radaris' free reverse phone number lookup tool to find out who phoned you by entering a phone number. This way, you will get some info that will connect you to the person you want. If you don't have much information about the concerned person, you can just search their family members on Radaris.
Even if someone hasn't resided at a specific address in years or if the phone number you have is no longer active, that information should still be linked to one or more persons. Simply input a complete address into the appropriate search sections for our Reverse Address Lookup. The data doesn't have to be recent for our search to be effective. You may search for such contact information on Radaris to find the person or individuals who are affiliated with it. Perhaps you just have an address instead of a name. If it does not, contact Radaris customer service for assistance. In that case, you can try different possible combinations of the name that you think are possible. Suppose you are searching for your childhood buddy, and you know his name but not the real complete name.