If the Numbering Plan Area (NPA) is known, you can directly enter the valid value in the corresponding field and select the “Retrieve” button on the NPA to CCS Network Mapping (NCN) page.
Disclaimer: Any images in this article are intended to be used as a guide for educational purposes only and they may differ slightly from the Production Environment.
For more information on the NCN page's fields, their descriptions and their valid values, please click here.