Called my cell around 5:30 in the afternoon. This is a local number, although it is probably spoofed. Another local number (same area and prefix) called earlier today. Like this one they hung up w/o leaving a message. Probably the same clowns.
This guy from 972 253 2858 made blank call. I called back. He did not respond. Looking at the number of complaints on the internet, I am sure this is tip of the iceberg. I reported this matter. From now on, he may be under surveillance.