NPANXX not found

Error Description

The NPANXX (npa) provided in a location (loc) is not valid.

Example

{  "err": [    {      "code": -14,      "msg": "NPANXX not found."    }  ]}

How to Resolve

Validate that the NPANXX field (npa) on all locations (bill, from, to, or loc) is a valid NPANXX.