By Selected LATA

Right-click a row containing the LATA you want to base the zone on and select Update Zone For All Rows in NpaNxx table. On the submenu, click By Selected Lata. This displays the Update Zone For All Rows in NpaNxx table by Lata window.

Select the zone from the drop-down list.

Click Update. The zones for all entries in the NPANXX table with the selected LATA are changed.