---
"@context": https://schema.org
"@type": TechArticle
"@id": https://www.twilio.com/docs/api/errors/22123#article
headline: "22123: Unable to Initiate Verification Call"
url: https://www.twilio.com/docs/api/errors/22123
inLanguage: en
dateModified: 2026-06-08T12:04:59.000Z
author:
  "@type": Organization
  name: Twilio Developer Education Team
publisher:
  "@type": Organization
  name: Twilio
---

# 22123: Unable to Initiate Verification Call

Log Level: ERROR

## Description

This error occurs when Twilio cannot start the ownership verification call for a Hosted Number Order. When you use `phone-call` verification, the person who answers the number being hosted must listen to a security token before the order can move to `verified`.

### Possible causes

* The phone number cannot be reached for the verification call.
* Your account is not allowed to place a call to the number you are trying to verify.
* The destination number has been blocked.
* The phone number is invalid or was submitted in an invalid format.
* The number is not eligible for Hosted Numbers. Hosted Numbers support US and Canada landline and toll-free numbers. Mobile numbers are not supported.

### Possible solutions

* Verify that the phone number is correct and submit it in `E.164` format when you create the Hosted Number Order.
* Confirm that the number is a supported Hosted Numbers destination and can answer a voice call. Hosted Numbers support US and Canada landline and toll-free numbers.
* Make sure the end user can answer the verification call and listen to the security token.
* Review your account permissions and any destination blocking that could prevent the verification call from being placed.
* Check the Hosted Number Order status and failure reason in Console or through the API. If the order moves to `action-required`, use the failure reason to diagnose the issue.
* Avoid repeated retries without fixing the underlying issue. Hosted Number Orders allow up to three verification attempts before moving to `action-required`.
* If the problem continues, contact Hosted Numbers Support at HostedSMS@twilio.com and include the Hosted Number Order SID.

#### Additional resources

* [Hosted Number Order Resource](/docs/phone-numbers/hosted-numbers/hosted-numbers-api/hosted-number-order-resource)
* [Hosted Numbers FAQ](/docs/phone-numbers/hosted-numbers)
* [Porting and Hosting Numbers](/docs/numbers-and-senders/port-host)