Numbers with this prefix were first introduced in 2005.While 3035003316 was originally issued with the info above, the owner of the phone number (303) 500-3316 may have transferred it through a process called porting.
Caller type: Scammer/Fraudster
Calls me many times a day - often 2-3 minutes apart! No one on on the other line, but if I call the number it has a recording to press 1 to be removed from their list - which of course they do not do. And then they call me again within 2-3 minutes. Recently I think they are also using the number 303-797-3207 with the same tactics.