About SIMs from Three.
If you already have a 3G or 4G device, like a phone, tablet or dongle that you're left with at the end of your contract, or if you bought a phone without a SIM, you can get a SIM with us. You can use a Three SIM in any unlocked 3G or 4G phone, tablet or dongle.
Note: A voice SIM should not be used and won't work in a Mobile Broadband device.
We offer 1 month rolling and 12 month contracts for phones and Mobile Broadband devices.You can get Pay Monthly and Pay As You Go SIMs. We offer plans for all different sizes of SIM and you can order a free Pay As You Go SIM card directly on our website.
If you have a phone that you didn't get from us and you want to use it with a Three SIM, you'll need to:
You might need to activate your new Three SIM to use it on our network:
- If you're new to Three, and you bought your contract from somewhere other than a Three Store or Three.co.uk, or it wasn’t activated when you received it. Find out how to activate your SIM on our network.
- If you're already on Three but you're upgrading to a different sized SIM. Find out how to activate your SIM here.
If you're using a device that you didn't get from Three, you may not have the right sized SIM for your device to work. If that’s the case and you’re a Pay Monthly customer, you can order a replacement online. If you’re a Pay As You Go customer, you can visit a Three Store or contact us to order a replacement SIM.