---
"@context": https://schema.org
"@type": TechArticle
"@id": https://www.twilio.com/docs/api/errors/32021#article
headline: "32021: SHAKEN/STIR call verification failed"
url: https://www.twilio.com/docs/api/errors/32021
inLanguage: en
dateModified: 2026-07-07T09:58:12.000Z
author:
  "@type": Organization
  name: Twilio Developer Education Team
publisher:
  "@type": Organization
  name: Twilio
---

# 32021: SHAKEN/STIR call verification failed

Log Type: CARRIER

Log Level: WARNING

## Description

Twilio cannot verify incoming SHAKEN PASSporT from carrier

### Possible causes

See the error message for details

### Possible solutions

No action required. Incoming call to your Twilio number can still be established without STIR(Secure Telephone Identity Revisited) status.