I've been receiving multiple calls from this number (408) 703-5052 several times each day over several days. The caller never leaves a message. An online search of this number doesn't provide much information. Although, the entry for this phone number at http://whocalld.com/+14087035052 reports this is a West San Jose/Los Gatos number. The site has a 54 sec recording of a call to this number reaching a Voice Mail Box. The recording includes " Please be advised you are calling on a recorded line... You have reached the voice mail box for circulation... Thank You for your readership" Sounds like a publication. I couldn't make out the name... Probably trying to sell subscriptions...