# Registered Mobile Number (RMN)

> Registered Mobile Number (RMN) means the mobile number a client has officially registered via multiple possible communication methods to access a specific

**Term:** Registered Mobile Number (RMN)  
**Last updated:** 2026-07-07

## Definition

### Definition 1

In practice, the registered mobile number links a person's phone to their account on a website or app. When someone logs in, changes a plan, or authorizes a payment, the service sends a call or text with a code to the RMN, and access is granted only when that code is entered. Because the number is tied to the subscriber's identity, it often carries the same weight as a signature for time-sensitive confirmations. Many providers pair the RMN with a registered email so notices can reach the account holder through more than one channel.

### Definition 2

For example, a customer opening a business account might register a mobile number during sign-up. From then on, the provider treats that number as the default route for security codes and account alerts. If the subscriber wants to change the registered mobile number, most services require a defined verification step, such as confirming the old number or answering support prompts, before the new number takes effect. Providers usually let account holders view or update their RMN from a settings or profile page, and offer help through a support center if the registered number is lost or no longer in use.

## Context

### Relevant circumstances

- When authentication or notices depend on a customer's registered mobile number, such as a bank sending a one-time passcode to confirm a transfer. Where two-factor authentication ties access rights to a specific RMN, so only the person holding that phone can log in. When updates to the registered number need a defined verification process, often handled through the provider's website, app settings, or support team. Where a subscriber changes phones or providers and needs to update the number on record so calls, texts, and account alerts still reach them.

### Relevant sectors

- Legal Services
- Business Services
- Commercial Contracts

## Relevant contract types

- [Remote Access and Mobile Computing Policy](https://www.genieai.co/en-us/template-type/remote-access-and-mobile-computing-policy)
- [Service Agreement](https://www.genieai.co/en-us/template-type/service-agreement)
- [Sale Agreement](https://www.genieai.co/en-us/template-type/sale-agreement)

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