DirectIQ allows you to filter contact lists by list name, list quality, and last modified date. First, open Contacts -> My Lists. Click the button with the filter icon located at the end of the line with the field names to see the filter line.
Select values to filter from the drop-down list for quality and last modified date and enter a value in the text box to filter by name. The contact lists are automatically updated after selecting a value from the drop-down list or after entering at least three characters into a text field.
If you click on the cross, that appears instead of the filter button, then all filters will be reset and the filter line will close.
Managing Single Contact List