Tools

NAS User Guides

NANPA provides various guides to assist users with the NANP Administration System (NAS). These guides address the NAS user registration process, the submission of resources applications (e.g., CO codes, CICs, 5YY NXX codes, etc.) and associated functions and the NANP Notification System (NNS).

NAS User Registration Guide

NAS Central Office Code User Guide

NAS Other NANP Resources User Guide

NAS NRUF On-Line User Guide

NAS NNS User Guide