---
title: "What terms are used in number porting?"
slug: "what-terms-are-used-in-number-porting"
description: "Number porting glossary defining common terms and abbreviations used when transferring telephone numbers between operators and providers."
tags: ["Number Porting", "Glossary"]
updated: 2026-10-12T13:34:28Z
published: 2026-10-12T13:34:28Z
canonical: "help.8x8.com/what-terms-are-used-in-number-porting"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://help.8x8.com/llms.txt
> Use this file to discover all available pages before exploring further.

# What terms are used in number porting?

## Number porting glossary

This article lists definitions of abbreviations and phrases which are commonly used when porting telephone numbers. Transferring numbers requires communication with third-party operators and providers who may use industry terminology. Use this guide to help understand the terms you may be unfamiliar with.

## Applies to

- Number Porting

## Terms & Definitions

| Term | Definition |
| --- | --- |
| AMER | North, Central and South America. |
| APAC | Asia-Pacific. |
| BAN | Billing Account Number. |
| BTN | Billing Telephone Number; the main number on your account when porting USA numbers. |
| CRD | Customer Requested Date; the preferred port date you submit when placing your request. |
| CSR | Customer Service Record; a file issued by your current provider which lists the data needed to port away. |
| CVP | Código de Validação da Portabilidade; a code which can be required when porting Portuguese numbers. |
| EMEA | Europe, the Middle East, and Africa. |
| FOC | Firm Order Commitment; when a port request has been fully accepted & scheduled with the current operator. |
| GCP | Gaining Communications Provider. |
| LCP | Losing Communications Provider. |
| LNP | Local Number Portability. |
| LOA | Letter of Authorization / Letter of Authority. |
| MBN | Main Billing Number; essential information when porting UK geographic numbers. |
| NOC | Network Operations Centre. |
| PC | Project Coordinator. |
| PM | Project Manager. |
| Porting Number | A telephone number which you are transferring to 8x8. |
| RIO | Relevé d'Identité Opérateur; a code which can be required when porting French numbers. |
| Temporary Number | A telephone number on your 8×8 account which will be replaced by the porting number. These are usually new numbers claimed from 8×8, which can be used to set up and test users or services in advance of a port completing. |
| UAN | Universal Account Number; an account reference which is required when porting Republic of Ireland numbers. |
| VCC | Virtual Contact Center. |

## Related

- [Global Number Porting Information for 8x8 Users](/global-number-porting-information-for-8x8-users.md)