The Number Portability Administration Center/Service Management System (NPAC/SMS) is the system that supports the implementation of Local Number Portability (LNP) and is used to facilitate number porting in the United States. Some reasons a telephone number may need to be ported:
To facilitate porting, a Service Provider sends porting information, called “Subscription Version” information, to the NPAC. Service providers choose their access method based on business need.
A Subscription Version can be entered or modified via a:
Once a ported number is activated, real-time network downloads are sent from the NPAC to all Local Service Management Systems (LSMSs).
The NPAC Customer Portal is a valuable resource for all NPAC Users and PTRS Users.
From the Customer Portal, you can: