just called about 10 minutes ago but left no msg.
lookup on one site says belongs to bandwidth.com which supplies internet service to businesses and government.

spies?

I tried to call a 512 number using Google Voice, and I got a message saying that the person at 210-338-1105 was not available... that's great, but I didn't call that number.  I didn't try to leave a message, but it happened two times in a row.

I received a call from 210-338-1105 -- I answered with the following....

"You have reached a number that is on the "Do Not Call Registry," therefore, you are in violation.  
Effective immediately please remove this number from your list or you will be reported to the Federal Trade Commission"  

Then I hang up!  

If I didn't call them, they they don't need to call me!

They hang up on my answer machine leaving no message.

Called my very old Mom and asked for a credit card number & her bank card number!