---
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"@type": TechArticle
"@id": https://www.twilio.com/docs/api/errors/21239#article
headline: "21239: Maximum Credential Lists Reached"
url: https://www.twilio.com/docs/api/errors/21239
inLanguage: en
dateModified: 2026-03-11T18:38:39.000Z
author:
  "@type": Organization
  name: Twilio Developer Education Team
publisher:
  "@type": Organization
  name: Twilio
---

# 21239: Maximum Credential Lists Reached

Log Type: APPLICATION

Log Level: ERROR

## Description

An account cannot have more than 100 IP Access Control Lists.

### Possible causes

* An account cannot have more than 100 IP Access Control Lists.

### Possible solutions

* Delete an existing IP Access Control List if you must create more.