They also use 404 736 3780.  No matter what- absolutely do not answer any call you receive from either of these numbers. You will get upwards of three calls per day everyday.  So far I am going on about 6 weeks.

this is an insurance company calling to sell a policy

they just called my number.  Did answer, don;t know who it is. They call about every 2 days. Never leave a message.

short noise in back round and weird sound from caller. no message

I don't pick up unknown numbers, but have had repeated calls ftom this number and never any messages left so figured telemarketing.