This number just keeps calling all through the day. They don't leave a voicemail and no one says anything for a while after you answer. When they finally get through you can clearly hear they're in a call center. This number is also a variation of another number that has been blocked. They claim to be a few different companies then an attorney with a few meaningless threats before admitting to be a debt collection company just find who they're looking for.
The lady identified herself as Erica Lopez. of TNS opinion research firm. She said they were doing a nationwide survey of the "investing habits of cel phone users." I informed her that the number was on the Do Not Call list, and she replied that since she wasn't trying to sell me anything, the DNC list did not apply. I told her never to call me again, and hung up.
I received the call today and a lady identified herself as being from some sort of survey company, wanting to survey consumers. The signal wasn't very clear so I didn't get much info other than that.