Numbers with this prefix were first introduced in 2001.While 7153506512 was originally issued with the info above, the owner of the phone number (715) 350-6512 may have transferred it through a process called porting.
Caller type: Scammer/Fraudster
Tried to sound you friend: "You're harder to get a hold of than my mother (chuckles)". Identified as a law-enforcement officer calling on behalf of a police-related charity. It could've been legit, but I doubt it.