Three has apologized after thousands of people reported being unable to make phone calls on the UK mobile network.
Downdetector, which tracks website outages, showed on Thursday that more than 10,000 people had reported problems with Three in the UK.
There have also been several thousand reports from users of Smarty and ID Mobile – small mobile phone companies that use the Three network.
“We are aware of an issue affecting a small percentage of voice services, our team is working hard to resolve this issue as quickly as possible,” Three said in a post on X.
“We are truly sorry for any inconvenience caused.”
The company said people were still able to use mobile data services and make 999 calls during the outage.
Three’s support team told customers it did not have “a time frame” for resolving this issue, but that the company was “working hard to resolve this issue as quickly as possible.”
Three has around 10.5 million customers across the UK, according to its website, but it is unclear how many of them are affected by the outages.
It is unclear whether customers will be able to claim compensation for the outage, although according to telecommunications regulator Ofcom’s website it “may be appropriate” for providers to offer refunds “while repairs are in progress”.
It comes a month after the UK regulator gave the green light for Three to merge with former rival Vodafone in a £16.5 billion deal.
The same day, a major outage affected the artificial intelligence tool ChatGPT.
