Who called from 7204529840

There 3 calls today from the same survey people: Electorate Info (at 4:28p), Surv Informed Elec (at 12:39pm), and Informed Electo. (at 8:38 am).  They came from three different phone numbers! 720-452-9840; 312-667-9781 and 469-701-0053. 3 different states.
YES definitely watch your checking account for mail orders you did not make.
They may ask if you voted. or any question that requires just a yes or no answer.

Called at 8:07 AM-CID "Electorate Info"-no mesg. number BLOCKED

Same 'Electorate Info' spoofed Caller ID as hundreds of others reporting. No message.

Could this have to do with "can you hear me" scam were they try to get people to answer yes?

My current call blocker can block 100 of these scumbag's numbers.  It's not enough.  Saw one on line that blocks 1000 numbers. Seriously considering the expense.