---
title: "Linq Zero: Is Your Blue Number Flagged? Here’s How to Check"
description: Is Your Blue Number Flagged? Here’s How to Check in linq zero
---

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May 18, 2026

# Linq Zero: Is Your Blue Number Flagged? Here’s How to Check

## Learn how to quickly determine whether your Blue number has been flagged and the steps you can take to verify its status and ensure proper functionality.

 

### **How to Know if Your Blue Number Has Been Flagged**

A user can typically tell their Blue number has been flagged by noticing a few key signs:

**1. Message Delivery Issues**  
Messages may fail to send, show as undelivered, or experience a high rate of iMessage/SMS failures.

**2. Reduced Performance**  
You might notice a sudden drop in message delivery rates or engagement compared to normal activity.

**3. Error Messages or Warnings**  
The system may display alerts or errors indicating that the number is restricted or experiencing issues.

 

### **How to Confirm**

To verify if your number has been flagged, you can:

- Use the **line health check tool** (if available)
- Reach out to **Linq Support**
- Contact your **Partner Success Manager** for a deeper review

### **How to Check if Your Blue Number Has Been Flagged**

1. **Sign in to Linq Zero![](https://help.linqapp.com/hs-fs/hubfs/image-png-Mar-30-2026-10-27-54-6655-PM.png?width=133&height=368&name=image-png-Mar-30-2026-10-27-54-6655-PM.png)**  
   Access your account by visiting: [https://zero.linqapp.com/login](https://zero.linqapp.com/login)
2. **Navigate to the API Section**  
   Once logged in, locate the left-hand menu. At the bottom of the sidebar, click on **“API.”
   
   ![](https://help.linqapp.com/hs-fs/hubfs/image-png-Mar-30-2026-10-31-47-7347-PM.png?width=204&height=269&name=image-png-Mar-30-2026-10-31-47-7347-PM.png)**
3. **Open Phone Number Settings**  
   On the right-hand side, the **API Developer Tools** will appear. From there, select the **“Phone Numbers”** option.
4. If your Blue number has been flagged, the **status will appear in red and labeled “Flagged.”
   
   Review Number Status**  
   You will see a list of your phone numbers along with the associated user and status.

   **![](https://help.linqapp.com/hs-fs/hubfs/image-png-Mar-30-2026-10-34-01-2339-PM.png?width=497&height=126&name=image-png-Mar-30-2026-10-34-01-2339-PM.png)![](https://help.linqapp.com/hs-fs/hubfs/image-png-Mar-30-2026-10-34-59-0909-PM.png?width=128&height=129&name=image-png-Mar-30-2026-10-34-59-0909-PM.png)**
   
   If your Linq Blue number is marked as flagged, please reach out to your partner success manager or contact the Linq Support team for further review and assistance.

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