Who handles the payment processing for my sales? March 04, 2020 20:35 NumberBarn handles all billing, credit card processing, and fraud checks for all brokered sales. Related articles Can I sell any phone numbers? What is the commission fee? Find my wireless account number and PIN from my service provider What is the NumberBarn Vendor program? Step by Step Guide: Buy a new number & transfer it away Comments 0 comments Article is closed for comments.