Authorized Service Providers
Authorized Service Providers including those that have an Operating Company Number (OCN) issued from the National Exchange Carrier Association (NECA), hold an Operating Authority, Certificate of Public Convenience and Necessity (CPCN), Radio License or VoIP Proof of Numbering and participate in porting numbers.
Authorized Providers of Telecom-related Services (PTRS)
Authorized Providers of Telecom-related Services (PTRS) include those that route, bill or rate calls or perform network maintenance. It also includes interconnected VoIP providers not eligible to obtain numbering resources from the North American Numbering Plan Administration , non-facilities-based resellers of interconnected VoIP services that use number resources and facilities of interconnected VoIP providers or Public Switch Telephone Number resellers and Service Bureaus that perform porting work on behalf of a Service Provider.