Index: src/wp-admin/includes/class-wp-ms-sites-list-table.php
===================================================================
--- src/wp-admin/includes/class-wp-ms-sites-list-table.php	(revision 37892)
+++ src/wp-admin/includes/class-wp-ms-sites-list-table.php	(working copy)
@@ -165,6 +165,15 @@
 			$this->items = array_slice( $_sites, 0, $per_page );
 		}
 
+		/**
+		 * Filters the arguments for the site query in the sites list table.
+		 *
+		 * @since 4.6.0
+		 *
+		 * @param array $args An array of get_sites() arguments.
+		 */
+		$args = apply_filters( 'ms_sites_list_table_query_args', $args );
+
 		$total_sites = get_sites( array_merge( $args, array(
 			'count' => true,
 			'offset' => 0,