Any number that begins with (858) 373-xxxx are associated with Marcus & Millichap. They use weird extensions like 3236 or 3286 (as seen in my (858) 373-3286 post). They are scammers claiming to be a real estate firm and they are harassers since they call multiple times a day asking for weird names. They claim to be a real estate firm, in which they should be mailed out postcards rather than harassing people in the middle of the day.