=IF(LEFT(A2,3)="134","移動",IF(LEFT(A2,3)="135","移動",IF(LEFT(A2,3)="136","移動",IF(LEFT(A2,3)="137","移動",IF(LEFT(A2,3)="138","移動",IF(LEFT(A2,3)="139","移動",IF(LEFT(A2,3)="147","移動",IF(LEFT(A2,3)="150","移動",IF(LEFT(A2,3)="151","移動",IF(LEFT(A2,3)="152","移動",IF(LEFT(A2,3)="157","移動",IF(LEFT(A2,3)="158","移動",IF(LEFT(A2,3)="159","移動",IF(LEFT(A2,3)="182","移動",IF(LEFT(A2,3)="183","移動",IF(LEFT(A2,3)="187","移動",IF(LEFT(A2,3)="188","移動",IF(LEFT(A2,3)="130","聯通",IF(LEFT(A2,3)="131","聯通",IF(LEFT(A2,3)="132","聯通",IF(LEFT(A2,3)="155","聯通",IF(LEFT(A2,3)="156","聯通",IF(LEFT(A2,3)="185","聯通",IF(LEFT(A2,3)="186","聯通",IF(LEFT(A2,3)="145","聯通",IF(LEFT(A2,3)="133","電信",IF(LEFT(A2,3)="153","電信",IF(LEFT(A2,3)="180","電信",IF(LEFT(A2,3)="189","電信",IF(LEFT(A2,3)="181","電信",IF(LEFT(A2,3)="177","電信","")))))))))))))))))))))))))))))))
手機號在A列，該公式放在第二行，然后下拉
