If you are not satisfied with your current internet provider, you can easily switch to any of your preferred networks. At the end of your contract, connect to your new provider. From the termination to switching, they will complete all for you.
But before switching to your preferred provider, check for the network availability in your area. Confirm the new provider only after understanding your requirements and researching the prices of the plans they offer.
If you are thinking of changing your internet service provider before the expiry of your contract term, it is advisable to connect with your current ISP first. Canceling your current contract might cost you a hefty price, so discussing it beforehand can prove beneficial.