Constant calls from a group of numbers dialed randomly to annoy and waste minutes.  They never leave messages.
Also, 779-235-1089, 956-341-0583 786-749-0662,585-326-3258,781-243-8522, 862-208-6066, 504-517-1070.

Another scam. I called and didn't say anything. The automated system instructed me to press 1 to place me on the Do Not Call list three times every 20 seconds before hanging up.

Another in a string of 'no message' robocallers trying to circumvent the do not fall registry by tricking you into calling them.

two calls on my cell phone.  no ID and no message

I get two or three of these a day. Is there anyway to stop robocalls?!