i am getting pretty much all these calls along with everyone else...my mom and people i work with are as well. it just seems to be tmobile as far as i kno but then again i just asked people with tmobile phones if they were getting them....i searched numbers on reverse look up got names, went to a house and everything. not sure what it is but here is a website about telemarketers which idk is true but all the numbers are listed under 215 area code....??   http://www.timezonesforpcs.com/phonelookup.html