Numbers with this prefix were first introduced in 1998.While 6305971675 was originally issued with the info above, the owner of the phone number (630) 597-1675 may have transferred it through a process called porting.
Caller type: Unknown
I answered this one (Identified as from Wheaton, IL), thinking it might be a business contact I'd just had a text msg from earlier today. They asked if I was my husband by his first name (hopefully I don't sound like a dude! lol). When I said no, they said they were looking for Mr. and Mrs. [our last name]. When I asked who was calling, they hung up. Weird :P