Before calling a recycling company, I suggest contacting an ITAD company first. Some recycling companies may charge a fee to pick up. But many guys may not realize that even old IT equipment still have resell value, even if they are over ten years old without asking you never know.
What is an ITAD company, and how to choose one? Check this post: how to choose an ITAD provider.
Personally, I sold some switches and test equipment to a local company. If you are in Florida, you may check this sell network equipment link.