---
"@context": https://schema.org
"@type": TechArticle
"@id": https://www.twilio.com/docs/api/errors/21470#article
headline: "21470: Invalid AccountSid"
url: https://www.twilio.com/docs/api/errors/21470
inLanguage: en
dateModified: 2025-12-18T21:40:49.000Z
author:
  "@type": Organization
  name: Twilio Developer Education Team
publisher:
  "@type": Organization
  name: Twilio
---

# 21470: Invalid AccountSid

Log Level: ERROR

## Description

The AccountSid you specified was not a valid AccountSid identifier. AccountSid's are 34 character strings that represent the Twilio Account . For example, AC44CE4123947237834573457345347567.