Can we keep our toll-free number when switching to Allstream service? Yes, you may keep your toll free number when switching to Allstream service. You will be asked to identify your toll-free number when you set up your service with Allstream. Tagged: movingphone numbertoll free Was this article helpful? Yes No Related Articles Moving your service Transferring services to a new provider (Porting) Adding an authorized user to your account W-9 Forms How do I login to my account? How do I request to receive a phone book?