Yes, customers have the option to upgrade or downgrade their SBC DSL plan. SBC DSL typically offers a variety of plans to suit different needs and preferences, including varying speeds and pricing. To initiate an upgrade or downgrade, customers may need to log into their account on the SBC DSL website, where they can view available plans and select the one that best meets their requirements. The process usually involves confirming the changes, and it is important to review any potential changes in pricing or terms associated with the new plan. Additionally, customers should consider whether their current package includes special promotions or discounts that might be affected by the change. For specific details regarding the options available and any related terms, it is advisable to check the current web page for the latest information.