--- title: "By Selected NPA" slug: "by-selected-npa" updated: 2026-08-10T20:23:16Z published: 2026-08-10T20:23:16Z canonical: "help.idibilling.com/by-selected-npa" --- > ## Documentation Index > Fetch the complete documentation index at: https://help.idibilling.com/llms.txt > Use this file to discover all available pages before exploring further. # By Selected NPA 1. Right-click a row containing the NPA you want to base the zone on and select **Update Zone For All Rows in NpaNxx table**. On the submenu, click **By Selected Npa**. This displays the Update Zone For All Rows in NpaNxx table by Npa window.         ![](https://cdn.us.document360.io/3f7f8ade-bcb1-4ec8-af25-0c0ad8601afb/Images/Documentation/16578.bmp?sv=2026-02-06&spr=https&st=2026-11-14T10%3A58%3A34Z&se=2026-11-14T11%3A58%3A34Z&sr=c&sp=r&sig=mJjneIbUyNun6xm%2BjhnirLv3giAh5YbNqIa00N4qopY%3D) 2. Select the zone from the drop-down list. 3. Click **Update**. The zones for all entries in the NPANXX table with the selected NPA are changed.