Who called from 9044353421

Phone rang once and hung up.  No message.

9:32 am call to my cell (which is on the National Do Not Call List... as is my other number) may have forwarded from my VOIP home phone.

Unwanted call, my # is reg on Do Not Call

Phone rings once then disconnects usually later in the evening

This number calls my cell but doesnt leave a message.  No idea what they call for.