---
"@context": https://schema.org
"@type": TechArticle
"@id": https://www.twilio.com/docs/api/errors/11009#article
headline: "11009: CNAM registration rejected: display name does not meet requirements"
url: https://www.twilio.com/docs/api/errors/11009
inLanguage: en
dateModified: 2026-04-09T10:48:29.000Z
author:
  "@type": Organization
  name: Twilio Developer Education Team
publisher:
  "@type": Organization
  name: Twilio
---

# 11009: CNAM registration rejected: display name does not meet requirements

Log Type: TWILIO

Log Level: ERROR

## Description

The display name you submitted does not meet one or more CNAM display name requirements.

### Possible causes

* Display name does not start with a letter.
* Display name contains characters that are not permitted (only letters, numbers, spaces, periods, or commas are allowed).
* Display name is too generic and does not accurately reflect the business (for example "City" or "State").
* Display name is already in use by another registration.

### Possible solutions

Update the display name to meet the following requirements:

* Must be 15 characters or fewer, start with a letter, and contain only letters, numbers, spaces, periods, or commas.
* Ensure the name is unique and accurately reflects your registered business, then resubmit for verification.

#### Additional resources

* [Brand your calls using CNAM](/docs/voice/brand-your-calls-using-cnam)
* [Getting Started with CNAM Caller ID](https://help.twilio.com/articles/360051670533-Getting-Started-with-CNAM-Caller-ID)