---
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"@type": TechArticle
"@id": https://www.twilio.com/docs/api/errors/22151#article
headline: "22151: Port In Error - Number with carrier restrictions"
url: https://www.twilio.com/docs/api/errors/22151
inLanguage: en
dateModified: 2026-03-11T18:38:39.000Z
author:
  "@type": Organization
  name: Twilio Developer Education Team
publisher:
  "@type": Organization
  name: Twilio
---

# 22151: Port In Error - Number with carrier restrictions

Log Type: CARRIER

Log Level: ERROR

## Description

Phone number has carrier restrictions with the losing carrier that must be resolved before porting the phone number.

### Possible causes

A carrier may place a restriction on a phone number to prevent porting for many reasons, common ones include service freezes to prevent unauthorized transfers or billing problems.

### Possible solutions

Contact the phone number's current carrier and resolve any outstanding issues that is preventing them from approving the port.