Who called from 2026448398

Received call just now 9:50 CST March 12. I did not answer. They did not leave a message which means they do not really want to talk to me.

Got a call from this numner on my cell.  Did not answer it - I do not answer calls from numbers I don't know.  They did not leave a voicemail.  I too am on the DNC registry.  What is a Robo Call??

Robo calling is a computer program that dials phone #s in consecutive order.

Got call from 800-644-8398. Am on DNC list

Just received a call from this number on my cell.  I do not answer calls from numbers I don't know.  They did not leave a voicemail.  I too am on the DNC registry list.  Can someone please tell me what a Robo Call is?  Thanks.