---
page_type: error
code: 22151
message: "22151: Port In Error - Number with carrier restrictions"
level: ERROR
product: Phone Numbers
---

## 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.