This number called my house number 4 times on 19 May 2018 without saying a words but showing tele-conversation on the television. The last time, I picked up the phone and without saying a words for about 2 minutes. Then the phone line was cut off. To me, this is harrassing.
If you have received a suspicious call or text, or if you have returned the call or text and you realize it is a scam, you can Report a Phone Call