This robot pretending to be from google calls everyday from different numbers. It's always the same pre-recorded message. We have a business line and even though we have blocked some of the numbers, everyday they change it. It's such a frustrating experience not being able to block the whole company at once. 424-201-2756, 424-201-2828, etc. The info I found so far is that it's a company called "LEVEL 3 COMMUNICATIONS, LLC -. The number is currently on switch number LSANCA54DS1." .....whatever that means.
These calls are from Google "Partners" - Google allows them to do this because they prey on unsuspecting business people and sell AdWords campaigns. They highly overrate their level of skill and are more concerned with signing up massive amounts of new customers rather than creating effective ad campaigns for you.
And the company isn't Level 3 Communications, that's their phone service provider (like CenturyLink, etc).