Who called from 3055872004

I get calls from these people every day, often 2 or 3 times a day!  I thought the Do Not Call list was supposed to take care of this!

They call me all the time, it got to the point where I was speaking to them in different language's :(

Caller ID shows GCS. This number calls me everyday, and leaves no voice message.

This number calls several times a day and never leaves a message also getting the same thing from 714 number.....

Caller ID shows "GCS" They also call from 813-441-0718 and 203-713-2668. They call from one of these numbers 3 or more calls everyday, they never leave a message. I am old with arthritis and It's is a real pain to have to get up only to see their number come up.