Top-up

Then get even better value by converting to an Add-on

No need to register, just have your card or voucher ready
Show me other ways to Top-up


How to Top-up your phone

Top-up in a nutshell

1. Add credit with a Top-up
2. Use our standard 321 tariff
3. Or get better value by converting to an All-in-One Add-on

Phone Top-up in more detail

All-in-One-Add-on example

£10 All-in-One Add-on         1GB data         3000 minutes         3000 texts

£10 Top-up using standard 321 tariff         330MB data         110 minutes         165 texts

See all our All-in-one Add-ons

Add-ons expire after 30 days. Unconverted credit has no expiry, but you must make a call, send a text or use some data, once every 6 months to keep the account active.

Top-up now

Then remember to convert your credit to an All-in-One Add-on to get better value.


Phone Top-up in more detail

Step 1.

Add credit with a Top-up using a card or a voucher. You can do this in the Three App, using a card or with a voucher.

Step 2.

You can use our standard tariff - Pay As You Go 321, which costs 3p a minute, 2p a text and 1p per MB of data.

Step 3.

Get much better value by converting your credit into an All-in-one-Add-on, which expires after 30 days. This also includes Go Roam Around the World, which lets you use your allowances in 71 destinations around the world.


All our All-in-One Add-ons

Go Roam Around the World - use your allowances in 71 destinations around the world. Add-ons expire after 30 days - just Top-up again and choose a new Add-on to continue getting great value.

£10 All-in-One Add-on

1GB data         3000 minutes         3000 texts

Lasts for 30 days.

£15 All-in-One Add-on

5GB data         3000 minutes       3000 texts

Lasts for 30 days.

£20 All-in-One Add-on

12GB data       3000 minutes       3000 texts

Lasts for 30 days.

£25 All-in-One Add-on

30GB data       3000 minutes       3000 texts

Lasts for 30 days.

£35 All-in-One Add-on

Unlimited data    3000 minutes       3000 texts

Lasts for 30 days.

Top-up now

Then remember to convert your credit to an All-in-One Add-on to get better value.


How to Top-up your mobile broadband

Top-up in a nutshell

1. Add credit with a Top-up
2. Use our standard 321 tariff
3. Or get better value by converting to an All-in-One Add-on

Mobile broadband Top-up in more detail

Add-on example

£15 Add-on                                                 3GB data

£15 Top-up using standard tariff                 1.5GB data

Add-ons expire after 30 days. Unconverted credit has no expiry, but you must make a call, send a text or use some data, once every 6 months to keep the account active.

Top-up now

Then remember to convert your credit to an All-in-One Add-on to get better value.


Mobile broadband Top-up in more detail

Step 1.

Add credit with a Top-up using a card or a voucher. You can do this in the Three App, using a card or with a voucher.

Step 2.

You can use our standard tariff - which costs 1p per MB of data.

Step 3.

Get much better value by converting your credit into an All-in-one-Add-on, which expires after 30 days. This also includes Go Roam Around the World, which lets you use your allowances in 71 destinations around the world.

All our All-in-One mobile broadband Add-ons

Go Roam Around the World - use your allowances in 71 destinations around the world. Add-ons expire after 30 days - just Top-up again and choose a new Add-on to continue getting great value.

£10 data Add-on                    1GB data

Lasts for 30 days

£15 data Add-on                    3GB data

Lasts for 30 days

£25 data Add-on                    7GB data

Lasts for 30 days

£2.99 data Add-on                500MB data

Lasts for 30 days

Top-up now

Then remember to convert your credit to an All-in-One Add-on to get better value.


Other ways to Top-up

Running out of

credit sucks

Choose from our 1 & 12 month SIM plans and take control of your spending.

How Add-ons work

Add-ons give you more for your money, but unlike credit, most are valid for 30 days.

Learn more about add-ons

Control your spend

Keep track of your credit, allowances and top-up in My3, so you'll always be in control.

Login or register for My3.

Find out your number

If you want to top-up online you'll need to know your phone or Mobile Broadband number before you begin.

How do I find out my number?