It is provided a method, comprising querying a network repository function to provide a respective identifier of each of one or more network functions; selecting a selected identifier of the one or more identifiers received in response to the querying; requesting a service from the network function identified by the selected identifier, wherein each of the network functions provides the service and fulfills a condition; the condition comprises at least one of a distance condition related to a distance between the respective network function and a reference point, a performance condition related to a performance of the respective network function, a capacity condition related to a capacity of the respective network function, an operational state condition related to an operational state of the respective network function, and a reliability condition related to a reliability of the respective network function.