Tesco Mobile

Tesco Mobile Outage Report in Cardiff, Wales

No problems detected

If you are having issues, please submit a report below.

Tesco Mobile Limited is a mobile virtual network operator in the United Kingdom using the O2 Network and has 99% network coverage in the UK.

Problems in the last 24 hours in Cardiff, Wales

The chart below shows the number of Tesco Mobile reports we have received in the last 24 hours from users in Cardiff and surrounding areas. An outage is declared when the number of reports exceeds the baseline, represented by the red line.

Tesco Mobile Outage Chart in Cardiff, Wales 01/21/2026 00:40

At the moment, we haven't detected any problems at Tesco Mobile. Are you experiencing issues or an outage? Leave a message in the comments section!

Most Reported Problems

The following are the most recent problems reported by Tesco Mobile users through our website.

  1. Phone (53%)

    Phone (53%)

  2. Internet (28%)

    Internet (28%)

  3. Total Blackout (14%)

    Total Blackout (14%)

  4. E-mail (3%)

    E-mail (3%)

  5. Wi-fi (1%)

    Wi-fi (1%)

  6. TV (%)

    TV (%)

Community Discussion

Tips? Frustrations? Share them here. Useful comments include a description of the problem, city and postal code.

Beware of "support numbers" or "recovery" accounts that might be posted below. Make sure to report and downvote those comments. Avoid posting your personal information.

Tesco Mobile Issues Reports Near Cardiff, Wales

Latest outage, problems and issue reports in Cardiff and nearby locations:

  • soozles_ Soozles (@soozles_) reported from Barry, Wales

    Seriously getting sick of the awful signal from @tescomobile 4 years I’ve been a customer and have 4 contracts with you spending &150-£160 a month and it’s getting worse everyday! Been trying to speak to someone all day (friend) and constantly getting call failed 😡

  • RachelKendall16 Rachel Kendall (@RachelKendall16) reported from Risca, Wales

    @tescomobile Hi, can you tell me if Tesco intends to support Apple Watches any time soon on a cellular level. If not why? O2 network is used on Tesco mobile…. How far apart can an iPhone be away from a watch if used and will your Apple Watch connect to all available WiFi?

  • HAndTheElements Hegsy & The Elements (@HAndTheElements) reported from Cardiff, Wales

    @tescomobile what is the escalation process regarding a faulty phone that has been lost by @Tesco? My OAP mother has been without a phone since September and promises to resolve have failed. No senior support from Pengam Green Management or in-store guidance. #disgracefulservice

  • nigelbendybus Nigel Smith (@nigelbendybus) reported from Cardiff, Wales

    Thank you so much @tescomobile for sorting out and reimbursing me for the scam texts I received yesterday. Yet again wonderful customer service from @tescomobile

  • soozles_ Soozles 🏴󠁧󠁢󠁷󠁬󠁳󠁿💙 (@soozles_) reported from Barry, Wales

    @tescomobile I can’t call or receive calls today, get call fail on them all but I’m able to text and use data without a problem. Is there a problem in the CF63 area?

  • Saeed_Ahmed02 Saeed Ahmed (@Saeed_Ahmed02) reported from Victoria, Wales

    @tescomobile needs to better support the Google Messages app. I quite like using the Google Assistant to send texts and it always comes back saying failed

  • TRHComposer Thomas Richard (@TRHComposer) reported from Cardiff, Wales

    @tescomobile my mobile data has just stopped working. Still got over 10GB available to me though. Is there a Network problem?

Tesco Mobile Issues Reports

Latest outage, problems and issue reports in social media:

  • ThatMetalNessie Ben (@ThatMetalNessie) reported

    @tescomobile Hi, is your app down? It didn't recognise my number for some weird reason so I logged out, tried to log back in again and it's saying it can't connect my number to the servers. Is this a widespread issue currently or is something weird happening with my phone?

  • Dant29890 Dan Thompson (@Dant29890) reported

    @TheSPshow @talkSPORT @tescomobile Still foolish not to tie him down to a deal, now 90m down the drain and no sell on fee.

  • barley_roger Roger Barley (@barley_roger) reported

    @tescomobile keep getting tesco error 42 when texting to enter TV competition. Never used to happen, what's going wrong?

  • brooksyman Brooksyman (@brooksyman) reported

    @tescomobile what's happening with your service? Tring to top my son's phone up won't let me. When will it be back up and running

  • MyWildestDream Jessica Rush 🎃 (@MyWildestDream) reported

    @tescomobile No phone signal all day… can someone please assist?

  • JennyNi61063834 Jenny Nichols (@JennyNi61063834) reported

    @tescomobile No he as no service at all

  • iWatchRead Nora (@iWatchRead) reported

    @tescomobile I topped up with 40£,activated my 20£ rocket pack and received a confirmation text that says so.Still,now it says I have no balance nor an activated pack to make any calls.I must top up with another 20£ to RE-activate a pack that should have been active already!That is 60£!Fix it

  • ellie_legg ellie legg (@ellie_legg) reported

    @tescomobile data isn’t working? Is there a problem with app and coverage

  • pafclee17 Lee (@pafclee17) reported

    @tescomobile any idea when the network will be back up? Been without no service since 1230

  • barley_roger Roger Barley (@barley_roger) reported

    @tescomobile Unable to log into my account at the moment says try again later. Down loaded app but says there's a glitch, not having much luck today