---
page_type: error
code: 18609
message: "18609: Ineligible Business Registration Authority"
level: ERROR
product: Phone Numbers
---

## Description

The provided business registration authority is not an EIN (Employer Identification Number) or DUN (Data Universal Numbering System) number.

### Possible Causes

The submitted business registration authority does not meet the eligibility requirements for the US Voice Integrity/CNAM trust product.

### Possible Solutions

Please resubmit your registration using either an EIN or a DUN number.