---
"@context": https://schema.org
"@type": TechArticle
"@id": https://www.twilio.com/docs/api/errors/21409#article
headline: "21409: VoiceCallerIdLookup cannot be set for this phone number"
url: https://www.twilio.com/docs/api/errors/21409
inLanguage: en
dateModified: 2025-12-18T21:40:49.000Z
author:
  "@type": Organization
  name: Twilio Developer Education Team
publisher:
  "@type": Organization
  name: Twilio
---

# 21409: VoiceCallerIdLookup cannot be set for this phone number

Log Level: ERROR

## Description

You attempted to set the VoiceCallerIdLookup for a phone number using the REST API, but the number does not support this feature.