Preferably, {TAIL ~ each network identifier} is retrieved based on a Mobile Country Code , {HEAD ~ a Mobile Network Code} , and a Location Area Code  
Preferably , { TAIL ~ each network identifier } is retrieved based on a Mobile Country Code , { HEAD ~ a Mobile Network Code } , and a Location Area Code
OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH