topic Re: Changing to EE in SIM cards & Porting

Changing to EE

Morrismadhouse — Mon, 26 Jan 2026 11:04:40 GMT

I have recently changed provider from O2 to EE.
My number has now been transferred but my phone shows the O2 eSIM.

in Settings > Mobile Services I can see Primary and Mobile Data. Primary is my number but on O2 eSIM, mobile data is on EE temporary number linked to EE eSIM do I have to change this manually?

Re: Changing to EE

Chris_B — Mon, 26 Jan 2026 14:08:06 GMT

@Morrismadhouse Switch off the o2 eSIM and make sure that the EE one is working correctly. Your o2 number hasn’t yet been migrated to EE yet so only delete the o2 eSIM once your number has replaced the temporary EE number.

Re: Changing to EE

Chris_B — Mon, 26 Jan 2026 14:10:22 GMT

actually leave the o2 number switched on as you can still receive calls via that number. Your number should migrate to the EE temporary number. This takes up to 24 hours and should be completed by tomorrow.

Re: Changing to EE

bristolian — Mon, 26 Jan 2026 16:49:02 GMT

@Chris_B wrote:
This takes up to 24 hours and should be completed by tomorrow.

Quoting this timescale for a number-port is misleading and will always be wrong.

The correct timescale for a port-in is the following working day after PAC submission. If you submit a PAC after approx 5.30pm on a Bank Holiday weekend, to quote an extreme example, it won't be submitted until the following Tuesday for port-in on Wednesday. More than "upto 24 hours"!