Yesterday, I received a call from 775-562-0198. It was a spanish speaking recording. So I hung-up. I went to the site whocalledme.com and did a search on the above number. I soon discover that a number of people have received calls from this number and some of them informed that this is a scam to charge money to your phone. If I would have pressed a key on my phone, I would have got automatically charged.
So I went to the website, reverse phone lookup and discovered that the service provider was Pac-West Telecomm.