operating on a serving cell of a first network type;

receiving a neighbor list;

modifying the neighbor list based on a preferred list to generate a modified neighbor list, by:

retrieving a first set of preferred list entries from a first subscriber module, the first subscriber module being a subscriber module for the first network type; and

retrieving a second set of preferred list entries from a second subscriber module, the second subscriber module being a subscriber module for the second network type, wherein the modified neighbor list comprises the union of the intersection of the neighbor list and the first set of preferred list entries and the intersection of the neighbor list and the second set of preferred list entries; and

taking cell measurements of cells of a first network type and cells of a second network type based on the modified neighbor list,

wherein the first network type is a global system for mobile communication network type, and

wherein the second network type is a code division multiple access network type,

wherein the method further comprises:

sending the cell measurements based on the modified neighbor list to the serving cell,

receiving an optimized neighbor list after sending the cell measurements based on the modified neighbor list to the serving cell; and

taking cell measurements of cells of a first network type and cells of a second network type based on the optimized neighbor list.