https://community.ee.co.uk/t5/Archived-Posts/Transferring-number-to-EE/m-p/987194#M281436 <P><a href="https://community.ee.co.uk/t5/user/viewprofilepage/user-id/1202433">@Gareth43</a>&nbsp; &nbsp;You could do both, but keep the EE sim with you as your giffgaff sim should loose signal at some point. &nbsp;It should take around 24 hours to migrate across. &nbsp;That doesn’t mean once the giffgaff sim will stop and the EE one will work straight the way. &nbsp; &nbsp;Once the process starts your giffgaff one will loose signal then it’s a case of waiting for the EE one to work. &nbsp;</P> Wed, 25 Nov 2020 14:10:52 GMT Chris_B 2020-11-25T14:10:52Z https://community.ee.co.uk/t5/Archived-Posts/Transferring-number-to-EE/m-p/987142#M281435 <P>Hello there I have just activated my sim and filled the form out to transfer my number from giffgaff to EE, now I’m just wondering should I leave my new EE sim in the phone or can I carry on using my old giffgaff one what as my number on it untill the number transfers over ??? Thanks&nbsp;</P> Wed, 25 Nov 2020 13:18:00 GMT https://community.ee.co.uk/t5/Archived-Posts/Transferring-number-to-EE/m-p/987142#M281435 Gareth43 2020-11-25T13:18:00Z https://community.ee.co.uk/t5/Archived-Posts/Transferring-number-to-EE/m-p/987194#M281436 <P><a href="https://community.ee.co.uk/t5/user/viewprofilepage/user-id/1202433">@Gareth43</a>&nbsp; &nbsp;You could do both, but keep the EE sim with you as your giffgaff sim should loose signal at some point. &nbsp;It should take around 24 hours to migrate across. &nbsp;That doesn’t mean once the giffgaff sim will stop and the EE one will work straight the way. &nbsp; &nbsp;Once the process starts your giffgaff one will loose signal then it’s a case of waiting for the EE one to work. &nbsp;</P> Wed, 25 Nov 2020 14:10:52 GMT https://community.ee.co.uk/t5/Archived-Posts/Transferring-number-to-EE/m-p/987194#M281436 Chris_B 2020-11-25T14:10:52Z