Methods and systems for dynamic switching between service providers are described. The method includes receiving a service provider switch (SPS) request from a User Equipment (UE) having a subscriber identity module (SIM) associated with a primary service provider where the request is indicative of switching the SIM from the primary service provider to a secondary service provider. The method further includes authenticating the SPS request based at least on the user subscription and triggering an update of a service control point (SCP) address in a home location register (HLR) of the primary service provider based on response to the authentication. The method may further include receiving another SPS request from the UE to switch the SIM from the secondary service provider to one of a former service provider and triggering an update of SCP details in the HLR of the primary service provider.