You have 3 options to return your equipment: Visit your local UPS Store, and have them pack it up for you. Return equipment to your local Comcast Service Center or Xfinity Store Mail your equipment back using their prepaid envelope that came with the device, or ask to be sent return boxes.How do I Return my Verizon equipment?
Traditionally there are 3 ways to return Verizon equipment. Probably the easiest is to simply take it into a Verizon Experience Store if there is one within reasonable driving distance and hand it in across the counter. You also at least used to be able to simply drop the equipment off at any UPS store, and they would ship it back to Verizon.