UK Dedicated number compliance

UK regulations require us to know the business behind every UK number. When you get a UK (+44) dedicated number, we’ll ask for a few business details. This helps stop spam, scams, and fraud. Mobile carriers or Sinch may use these details to confirm your business is genuine. It takes about two minutes, and you can start sending as soon as you submit them.

Have these ready:

• Your Company Registration Number (CRN), if it has one. You can look this up on Companies House if you don't know it offhand. Companies House

• If you're a sole trader, you won't have a CRN, that's expected, you can skip this and select I have no CRN when you get to the business details step.

• Your business address, website, and main phone number

• Contact details for an authorised representative at your business

• How you plan to use the number, and whether your messages will include links or phone numbers

• Adding a brand-new UK number: Go to Settings > Numbers, click Add a number, and choose a number as usual. Once you confirm and name it, you'll be taken straight into the compliance details below.

• An existing UK number needs details: Go to Settings > Numbers. Any dedicated number marked Action needed is missing its compliance details. Click Continue setup next to it.

Once your number is confirmed, you'll see a banner at the top of the screen confirming it's in your account and ready to send once you submit the details below.

Select whether you're sending for your own business or for another business you're authorised to act for.

Then provide:

• Country of registration (where the business is legally registered)

• Business type and industry

• Company Registration Number (CRN) – enter your 8-digit CRN and we'll automatically fetch your legal business name and registered address from Companies House. you're a sole trader, you do not require to enter a CRN).

• Trading name (optional, only if different from your legal name)

• Business address (auto-filled from Companies House if you have a CRN; editable if the address is different)

• Business website

• Telephone number (your business's main contact number)

This is the person who can confirm your business details if mobile carriers or Sinch need to check them.

Select whether you are the authorised representative, or you're completing this on behalf of one. Then provide their:

• First and last name

• Role at the business

• Email address

• Direct telephone number (not a shared or reception line)

Tell us what you'll use this number for:

• How will you use this number? Select one or more message types (for example, delivery and order updates, marketing and promotions).

• Will your messages include links? If yes, add one or more example links as they'll appear in your messages.

• Will your messages include a phone number people can call or text? If yes, add the number(s).

• Example messages – provide one or two examples of what your messages will actually look like.

Check everything on the Review and confirm screen. Each section (business details, authorised representative, message purpose) has an Edit link if you need to change anything.

Tick the final confirmation checkbox to confirm the details are correct and acknowledge the number's monthly fee, then submit. Your number is ready to send from as soon as you submit.

Where do I find my CRN?
Search for your company on Companies House. Your CRN is the 8-digit number on your company’s record.

I’m a sole trader. What do I enter?
Choose Sole trader / sole proprietor as your business type. Enter the name your business is registered under, and your trading name if it’s different. You don’t need a CRN.

My business isn’t registered in the UK. Can I still get a UK number?
Yes. Choose your country of registration and enter your details manually.

Can I finish later?
Yes. Select Save and close at any time. Your progress is saved, and you can pick up where you left off from the Numbers page.

Do I need to do this for every UK number?
Yes. Each UK number must be linked to the business using it. If you add more numbers for the same business, we’ll fill in the details we already have.

Will anyone call the phone numbers I give?
We only use them if mobile carriers or Sinch need to confirm your details.

If you’re not sure about any of the details we ask for, contact our support team and we’ll help you finish registration.