All Pay Monthly Add-ons have a one month minimum term if bought when you connect to the Three network.There's no rollover to the next month for any Add-ons. Your first month's Add-on charge and allowance (where applicable) may be pro-rated.

With our Essential Internet plans there are options to purchase add-ons that last for 30 days and automatically drop off from your account. You also can purchase the the All-you-can-eat data add-on for the remainder of your contract, but cancelling this early will incur an early termination fee. 

Add Landline

Add Landline provides  2000 voice minutes for all calls made from the UK to any standard UK landline (01, 02, 03). Calls to Isle of Man and Channel Islands numbers are excluded.

Add Landline 1000

Add Landline gives you  1000 voice minutes for all calls made from the UK to any standard UK landline (01, 02, 03). Calls to Isle of Man and Channel Islands numbers are excluded.

Add International Saver

Add International Saver provides 3000 minutes of calls per month to stated destinations. Calls made to these destinations while roaming abroad, and from the UK to any other international destinations, are excluded from the Add-on allowance. Video and fax calls are excluded.

Add Internet 10

Add Internet 10 provides 10MB of Internet allowance and unlimited Email on Three, Three's email service. Internet access for phone browsing only, your data usage does not include using your phone as a modem. Once the add-on data is used data will be charged as per your current price plan.

Add Internet and Email

Add Internet and Email gives you a 2GB internet allowance, so you can send and receive emails and browse the web from your Three handset. You can also use your handset as a modem to connect to a PC or other device. If you exceed your 2GB monthly allowance you'll still be able to continue browsing but will be charged at the standard internet rate on your current price plan.

Add Internet Max

Add Internet Max gives you a 2GB internet allowance, so you can send and receive emails and browse the web from your Three handset. You can also use your handset as a modem to connect to a PC or other device. If you exceed your 2GB monthly allowance you'll still be able to continue browsing but will be charged at the standard internet rate on your current price plan.

Add BlackBerry

Add BlackBerry provides connectivity to BlackBerry email and messaging services including BBM.

Add BlackBerry Internet and Email

Add BlackBerry provides 2GB of Internet allowance and connectivity to BlackBerry email and messaging services including BBM. Your data usage does not include using your phone as a modem.

Add text 75

Add text 75 provides the respective amount of text messages.These texts are person to person texts to standard, UK mainland, numbers beginning 07. Each text message can accommodate 160 characters. Some handsets allow for more. These will be divided and sent in numerous messages (depending upon length)

Add text 200

Add text 200 provides the respective amount of text messages.These texts are person to person texts to standard, UK mainland, numbers beginning 07. Each text message can accommodate 160 characters. Some handsets allow for more. These will be divided and sent in numerous messages (depending upon length)

Add text 500

Add text 500 provides the respective amount of text messages.These texts are person to person texts to standard, UK mainland, numbers beginning 07. Each text message can accommodate 160 characters. Some handsets allow for more. These will be divided and sent in numerous messages (depending upon length)

X Series Silver

X-Series Silver give you 1GB of Internet allowance, 5000 minutes of Skype to Skype calls and 10,000 Windows Live messages. X-Series services are for your personal use only and do not include using your mobile as a modem with your PC or laptop.

Add TV Channels

Access to all TV On Demand shows e.g. Lost, Friends, Desperate Housewives etc.  The TV Add-on is only suitable for mobiles that support live streaming.  TV content can only be viewed when in the UK and whilst in 3G coverage.

Add 250MB

Add 250MB gives you a 250MB internet allowance that lasts for 30 days so you can send and receive emails and browse the web from your Three handset

Add All-you-can-eat data

Add All-you-can data eat gives you all the internet use you need when you're in the UK. With all-you-can-eat data there is no restriction or fair use policy on the amount of data you can use. All-you-can-eat data on our Ultimate Internet plans or our All-you-can-eat data add-ons do not support tethering. This means you can use your smartphone as you like - so you can download apps, browse the web, look at maps and check your emails as often as you like without worrying about going over your data allowance. You can purchase an add-on for the remainder of your contract, or if you are on one of our new Essential Internet Plans (available from 8th March) you can purchase one that lasts for 30 days.