Received call on my wireless landline on 05/26/17 @ 8:23PM.  The call originated from the Washington, D.C. Area.  No further details about this phone number. I speculate that it may be political in nature.

Copy that. Same thing about the same time. Call to Colorado, no connection. almost certainly political.

Called about 7:30 pm no message left.

Called my landline. I never pick up without hearing a known person at the other end. After my answering machine kicked in there was no message. I have seen this number appear many times. Strong bet that it is spam, possibly political fund raising.

This number called my landline on 5/28/17 ar 1:47 pm pacific time.  My answer machine picked up, but no message was lift.  After reading the other messages about this number, I also suspect spam.  I blocked any further calls.