Create a central office code

---
title: Create a central office code
description: Created topic for STRY55294083 - DOC1071773Create a central office code to allocate it to an area code of a country by using the Telecommunications Network Inventory application.
locale: en-US
canonical_url: https://www.servicenow.com/docs/r/australia/telecom-network-inventory/telecommunications-network-inventory/create\_a\_central\_office\_code.html
release: australia
product: Telecommunications Network Inventory
classification: telecommunications-network-inventory
topic_type: task
last_updated: "2026-09-10"
reading_time_minutes: 1
breadcrumb: [Create the components of a telephone number, Configure, Telecommunications Network Inventory]
---

# Create a central office code

Create a central office code to allocate it to an area code of a country by using the Telecommunications Network Inventory application.

## Before you begin

Role required: sn\_ni\_core.inventory\_admin

## About this task

You can create, review, update, or delete a central office code. You can also view the details of an area code or allocate a central office code to an area code of a country by using the Telecommunications Network Inventory application.

## Procedure

1.  Navigate to **Workspaces** > **Network Inventory Workspace**.

2.  Select the list icon \(\[Omitted image "ni-workspace-list-icon.png"\] Alt text: List icon.\), and then go to **Administration** > **Central office code**.

3.  Select **New**

4.  On the **Details** tab, on the form, fill in the fields as follows.

<table id="table_hp5_1mn_hcc"><thead><tr><th>

 

</th><th>

 

</th></tr></thead><tbody><tr><td>

Area Code

</td><td>

Code that identifies a geographic region within a country or territory. It’s usually the first three digits of a telephone number. The purpose of the area code is to route telephone calls to destinations that are based on the location of the recipient.For example, in the phone number \(123\) 456-7890, "123" represents the area code.

</td></tr><tr><td>

Central Office Code

</td><td>

Central office code that is also referred to as NXX. The NXX portion of a telephone number provides information about the central office or local exchange that belongs to a particular geographic area. Each central office code is related to a geographic location or service provider within the area code.

 For example, in the phone number \(123\) 456-7890, "456" represents the central office code.

</td></tr></tbody>
</table>5.  Add the attachments, such as the graphics or documents, by selecting the attachment icon \(\[Omitted image "attachments-icon.png"\] Alt text: Attachment icon.\) in the right panel.

6.  Select **Save**.

    A central office code and an area code are added in the list view of the central office code.

7.  If you want to delete a central office code, navigate to that code, select the options icon \(\[Omitted image "options-icon.png"\] Alt text: Options icon.\), select **Delete**, and select **OK** when you see the confirmation window.


## What to do next

Create a country code. For information, see [Create a country code](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/telecom-network-inventory/telecommunications-network-inventory/create_a_country_code.md).

**Parent Topic:**[Create the components of a telephone number](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/telecom-network-inventory/telecommunications-network-inventory/create_components_of_a_telephone_number.md)