Three SIM Activation.

Received your new SIM? Just complete the form below to activate it.

Please fill in the information below.

Important If you have data on your old sim card that's important, please take a back up before you ask us to swap to your new sim. Once we've activated your new sim, the old sim card will be deactivated and you won't be able to retrieve any data from it.

For more information please visit the Device Help section at www.three.ie/support.
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