How to request a long code in Klaviyo

How to request a long code in Klaviyo

Estimated 3 minute read

Updated Oct 22, 2026, 12:00 AM EST

Table of contents

You will learn
Before you begin
Best practices
Request a long code in Klaviyo
Outcome
Additional resources

To request a long code, you must:

Be an Owner, Admin, or Manager.
Have a paid SMS plan.
Have SMS set up in your account.

You will learn

Find out how to request or register a long code so that you can start sending SMS.

Long codes are available for the following countries:

Australia
Austria
Belgium
Denmark
Finland
Germany
Hungary
Ireland
Italy
Norway
Poland
Portugal
Spain
Sweden
The Netherlands
United Kingdom

Not sure which number type is best for you? Check out this article that compares the different SMS number types and their advantages.

Before you begin

Some countries have requirements when applying for a long code. Click on the subsection below that applies to your country to view the requirements.

Australia

Australia requires that every business requesting a long code provide certain information. You’ll need to show proof of your business’s:

Name
ID number (i.e., Australian business number)
Business address

A commercial registry (or equivalent documentation) can be used as proof of all of the above.


Required information	Accepted documents
Business name	Commercial registry (or equivalent documentation)
Business address	- Commercial registry or equivalent showing address
Australian business number	Commercial registry (or equivalent documentation)

Belgium

To register a Belgian long code (LC), the business must have a registered business address in Belgium. Only businesses with a Belgian address are eligible to obtain a Belgian LC.

Belgium requires the following information to register a long code:


Required information	Supporting documents
Business name	Commercial registry (or equivalent documentation)
Business address	- Commercial registry or equivalent showing address - Utility bill - Tax notice - Rent receipt - Title deed
Business registration number	Commercial registry (or equivalent documentation).
Personal email address for a point of contact	Provide an email address that meets the following criteria: - Use an individual's personal contact email and not a generic support, help, or customer service address. - Avoid Google, Yahoo, or any other non-business-related email address where possible. - Use a business domain and ensure the domain aligns with the company name information being submitted (e.g., if the domain differs from the company name, this is likely to be rejected).

Finland

Finland requires your business address. You do not need to upload supporting documents.

Germany

To register a German long code (LC), the business must have a registered business address in Germany. Only businesses with a German address are eligible to obtain a German LC.

Germany requires the following information to register a long code:


Required information	Supporting documents
Point of contact	- First name - Last name - Email address
Business name	Commercial registry (or equivalent)
Business registration number	Commercial registry (or equivalent)
Business website	Valid website address
Business address	Commercial registry (or equivalent)

Ireland

Ireland requires that every business requesting a long code provide certain information. You’ll need to show proof of your business’s:

Name
Business registration
Business address in Ireland

Submit proof of business registration from an authorized government authority that includes your business name and address in Ireland. Examples include:

IE Company Registration Office proof of business registration
UK Companies House certificate of incorporation

Italy

To obtain a long code in Italy, every business must provide:

Business name
VAT number
Business address
Proof of business address


Required information	Accepted documents
Business address	Any address
Proof of address	- Business registration document showing your business address - Utility bill - Tax notice - Rent receipt - Title deed

Best practices

If you’re replacing an existing sending number, let your SMS recipients know about the change before requesting a long code. For details, check out this article on how to alert your subscribers about a change in number.

Long code requests have different approval times depending on the country. For Australia, Belgium, Germany, Ireland, and Italy, allow 1–3 business days for your documents to be reviewed. In countries that do not require documents, the long code is available immediately after a successful request.

Once your request has been approved, your long code will be automatically assigned to your account. For most countries, your long code will be the default sending number for all messages for the corresponding country.

Request a long code in Klaviyo

If you send to multiple countries, each country must have a separate long code, so you must repeat this process per country.

Navigate to Settings > Text message.
Select Sender information.

Either:
Select Add country (if you don't see your country listed), then search for that country in the resulting modal.
In the line with the flag for your country, click the 3 vertical dots on the right-hand side and click Edit.
In the modal, choose Long code.
This is the only option for Belgium.

Click Next.
If prompted, enter your business information. If documents are required, make sure the details match them. Select Next.
If prompted to upload documents, choose a Document type and upload the supporting documents required for your country. At least 1 document must include your full business address.
Select Confirm to submit your documents.
Check the confirmation message to make sure your request was submitted.

Outcome

If your long code request requires documentation, allow 1–3 business days for review. Your long code becomes available after approval. If no documents are required, it is available immediately after a successful request. Once available, you can start adding it to your sign-up forms, website, or email banners.

Additional resources

Understanding SMS sending numbers

Learn about the SMS sending numbers for every country that Klaviyo can send to, including what each number type can do. - Understanding SMS sending numbers

Learn about the SMS sending numbers for every country that Klaviyo can send to, including what each number type can do. - How to tell subscribers about a change in phone number

Learn how to properly inform subscribers when you switch your phone number. - How to collect SMS consent with a tap-to-text form

Learn how to set up a tap-to-text sign-up form to collect phone numbers from new prospects. With tap-to-text, site visitors can click a button in your sign-up form to automatically open their text messaging app where Klaviyo has added a message. They only need to send the message to subscribe.

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