Increase in spam in the workplace

Anyone else getting bombarded lately? I am in IT and it has been ridiculous lately. Not product based spam, but service based. In the last couple of weeks they are calling me at my desk. IT sourcing companies, schools looking for intern opportunities, data warehouse companies, etc.. I must get 3-4 calls and 10 emails a day. I think LinkedIn is behind it, but I don't use my phone number or work email, although email is pretty easy to figure out. Anyone?