Here is the full list of O2 statements since the outage was first reported "at lunch time" on Wednesday 11 July, with the latest, issued this morning, Thursday, 12 July.

Thursday, 12 July - 11:00

"Following the previous update that our 2G network service has now been restored, our 3G service has been restoring gradually.We expect full service to return this afternoon. In the meantime customers who were affected should still be able to make and receive calls (and may wish to try switching their mobile phones off and on as service returns). We are sorry again for the inconvenience this has caused some customers. We continue to deploy all possible resources, and will do so until full service is restored."

Thursday, 12 July - 08:00

"We can confirm that our 2G network service has now been restored. Customers who were affected should now be able to make and receive calls.Our 3G service is starting to restore and customers should expect to see a gradual return of data services as the day progresses.Customers affected may wish to try switching their mobile phones off and on as service returns.We are sorry again for the inconvenience this has caused some customers and can provide reassurance that we continue to deploy all possible resources, and will do so until full service is restored."

Thursday, 12 July - 05:40am

"We're continuing to drive the recovery of this issue with our support teams and vendors. We're working to restore service as quickly as possible. Unfortunately we're unable to confirm any timescales for service restoration at this time. We'll let you know as soon as we can. We apologise once again for any inconvenience this incident is causing."

Thursday, 12 July - 03:25

"We're still working with our support teams and vendors trying to restore service as quickly as possible. We apologise for any inconvenience caused while this recovery work is in progress. We'll provide further updates as soon as we can."

Thursday, 12 July - 01:00

"We can confirm that the problem with our mobile service is due to a fault with one of our network systems, which has meant some mobile phone numbers are not registering correctly on our network. As a result, some customers are having difficulty making or receiving calls, sending texts or using data. We, and our central supplier, have deployed all possible resources and are working through the night to restore service as soon as possible. We apologise again to customers affected and will provide further updates as soon as we can."

Wednesday, 11 July - 23:00

"Our engineers and vendors are continuing to deal with the problem as a priority and we hope to restore full service as soon as possible."

O2 Outtage

Wednesday, 11 July - 19:00

"We continue to manage the problem on our network that is affecting some of our customers. Customers may still be having difficulty making and receiving calls, sending texts or using data.We are sorry for any inconvenience. Our engineers are dealing with the problem as a priority and we hope to restore full service as soon as possible."

Wednesday, 11 July - 16:45

"We're currently seeing a problem on our network affecting some of our customers. As a result, you may have difficulty making or receiving calls, sending texts or using data. Our engineers are dealing with the problem as a priority and we hope to restore full service as soon as possible."