---
"@context": https://schema.org
"@type": TechArticle
"@id": https://www.twilio.com/docs/api/errors/21236#article
headline: "21236: IP Access Control List Dependencies Violation"
url: https://www.twilio.com/docs/api/errors/21236
inLanguage: en
dateModified: 2026-03-11T18:38:39.000Z
author:
  "@type": Organization
  name: Twilio Developer Education Team
publisher:
  "@type": Organization
  name: Twilio
---

# 21236: IP Access Control List Dependencies Violation

Log Type: APPLICATION

Log Level: ERROR

## Description

You cannot delete an IP Access Control List that is still mapped to a SIP Domain.

### Possible causes

* Your IP Access Control List is still mapped to a SIP Domain.

### Possible solutions

* Remove the IP Access Control list from your SIP Domain before trying to delete it.