> ## Documentation Index
> Fetch the complete documentation index at: https://docs.fluents.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Do Not Call (DNC) List

> How to manage phone numbers that should not be called by outbound campaigns in Fluents.ai.

The **Do Not Call (DNC) List** helps you manage phone numbers that should **not** be called by your outbound agents and campaigns.

When a number is on the DNC list for an environment:

* Outbound calls to that number are **skipped**
* Inbound calls from that number are still **allowed** (if they choose to call you)

The DNC list is **per environment** (for example, sandbox vs. production). Each environment has its own independent list.

***

## Video: DNC List Overview

<iframe className="w-full aspect-video rounded-xl" src="https://www.youtube.com/embed/mCGzYjoN864" title="Do Not Call (DNC) List Overview" frameBorder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowFullScreen />

***

## DNC List page overview

Go to **DNC List** in the left sidebar.

You’ll see:

* A **search bar** to look up phone numbers
* A **Created By** filter with:
  * **User** – numbers added manually by your team
  * **Fluents** – numbers automatically added based on call behavior
  * **All** – both sources
* A table with:
  * **Phone Number** – in E.164 format (for example, `+14151234567`)
  * **Created By** – `User` or `Fluents`
  * **Date Added** – when the number was added
  * **Reason** – optional note explaining why it was added

On the top-right, click **New** to add a number to the DNC list.

You can also click **Export CSV** to download the current DNC list.

***

## How numbers get on the DNC list

Numbers can be added in two ways:

1. **Automatically by Fluents (during calls and campaigns)**
2. **Manually by users in the DNC List page**

### 1) Automatic DNC from calls and campaigns

Fluents can detect opt-out phrases such as:\
“Please don’t call me again” (and similar requests).

When this is detected (based on campaign/agent settings):

* The contact’s phone number is **automatically added** to the DNC list
* The entry shows:
  * **Created By:** `Fluents`
  * **Reason:** `User requested to not be called`

Any future **outbound** attempts to that number in this environment will be skipped.

### 2) Manual DNC entries (by users)

You can also add numbers manually, for example:

* To honor an external DNC list you maintain
* To add numbers that requested removal through another channel (email, web form, etc.)
* To proactively block numbers you know you should not call

***

## Add a number to the DNC list

To add a number manually:

1. Go to **DNC List**.
2. Click **New** (top-right).
3. In the **Add DNC Number** dialog:
   * **Phone Number** – enter the number in **E.164 format**, e.g. `+14151234567`
   * **Reason (Optional)** – add a note (for example, “Requested removal via email”)
4. Click **Add DNC Number**.

The new entry will appear in the table with:

* **Created By:** `User`
* Your optional **Reason**
* The **Date Added**

From now on, outbound campaigns in this environment will skip this number.

***

## Edit or remove a DNC entry

Sometimes you may need to correct a number or remove it from the list.

For each row in the DNC table, the actions menu (three dots) lets you:

* **Edit** – update the phone number or reason
* **Delete** – remove the number from the DNC list

Use **Delete** only when you’re sure it’s appropriate to call this number again (for example, if a contact explicitly asks to resume calls).

***

## Search and filter the DNC list

Use the tools on the DNC page to find entries quickly:

* **Search phone numbers** – type part or all of a number
* **Created By** filter:
  * **User** – show only numbers added manually
  * **Fluents** – show only numbers added automatically
  * **All** – show every entry

This helps you review which opt-outs came from live conversations vs. internal processes.

***

## How the DNC list affects campaigns

When a campaign or outbound agent attempts to call a number that’s on the DNC list:

* The call is **not placed**
* The contact is treated as **skipped due to DNC**

Inbound calls are **not blocked** by the DNC list. If someone chooses to call you, Fluents will still allow the call through.

***

## Best practices

* **Use E.164 format consistently**\
  Always include the country code (e.g., `+1` for the US) to ensure matching works reliably.

* **Honor opt-outs promptly**\
  If someone opts out via email, chat, or support, add them to the DNC list as soon as possible.

* **Review automatic entries**\
  Filter by **Created By: Fluents** periodically to monitor opt-outs detected during calls.

* **Keep environments in mind**\
  The DNC list is **per environment**, so make sure you update the environment that runs live campaigns.

***

## Where to go next

* Learn how outbound campaigns use numbers and contacts in **[Campaigns Feature Guide](/product/features/campaigns)**.
* See how phone numbers and providers are configured in **[Numbers](/product/features/numbers)** and **[Providers](/product/features/providers)**.
* Review how calls are logged and inspected in **[Call History (Core Concept)](../concepts/call-history)**.