Personal Business Coverage checker Store locator Log in Register View basket Shop Support Blog 5G SupportSwitching Switching Switching to Three from another provider You can switch to us online, any time. Save all the "new phone, who dis?" texts and bring your number with you. Or, ditch it altogether and start fresh with us. We'll even handle the break-up with your old network. Switch to Three Leave Three for another provider Leaving us doesn't have to be painful. You can do everything you need to easily, whether online, through a text message or on the phone. We've got all the info you need to know about leaving Three for another provider. Leave Three < Back to Support Coverage and network status Explore Three Mobile Phones. Broadband. Tablets. Top-up. SIM Only deals. Pay As You Go. Three+ Three App. Popular phones Samsung Galaxy S21. Samsung Galaxy S21 Plus. Samsung Galaxy S21 Ultra. Samsung Galaxy Z Series. iPhone 13. iPhone 13 mini. iPhone 13 Pro. iPhone 13 Pro Max. Popular products iPhone. Samsung. Honor. Huawei. Oppo. OnePlus. Xiaomi. Google Pixel. Our company About us. Terms & Conditions. Social Commitment. Business. Code of practice. Wholesale. Modern Slavery Statement. Corporate. Gender Pay Gap Report. Careers. Accessibility. Contact us. Vulnerable Customer Policy. Media Centre. Privacy & Safety. Price Guide. Delivery Information. SMARTY Sitemap. Hutchison 3G UK Ltd | Registered address: Great Brighams Mead, 1 Vastern Road, Reading, Berkshire RG1 8DJ | Registered in England & Wales | Registered company number: 03885486 | Authorised and regulated by the Financial Conduct Authority (registration number: 738979) © Hutchison 3G UK Limited 2002 - Present. Feedback