Code:

exten => _8.,1,GotoIf($["${EXTEN:2:3}" = "416"]?10:2)
exten => _8.,2,GotoIf($["${EXTEN:2:3}" = "905"]?10:3)
exten => _8.,3,NoOp(Calling ${EXTEN} for area ${EXTEN:2:3})
exten => _8.,4,Hangup
exten => _8.,10,Set(NEWEXT=1${EXTEN:1})
exten => _8.,11,NoOp(Calling ${NEWEXT} for area ${EXTEN:2:3})
exten => _8.,12,Hangup

This code now works....