Final answer:
Once a 624th-directed block/unblock mission is completed, it's typically reported in the managing system per the overseeing authority's protocols for documentation, accountability, and oversight.
Step-by-step explanation:
The question pertains to a specific operational protocol, which suggests it is likely related to Computers and Technology, particularly within the context of information systems or network management. After the execution of a 624th-directed block/unblock mission, the completion is generally tracked and reported within the system that was used for managing and initiating the task. This could involve updating a project management tool, logging the completion in an issue tracking system, or submitting a report to a designated oversight body or command structure within the organization. It is essential to follow the specific reporting procedures that have been outlined by the overseeing authority or within the operational protocols of the organization. Detailed documentation is crucial for maintaining accountability and oversight of operational tasks.