Tesco Mobile

Tesco Mobile Outage Report in Cardiff, Wales

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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 12/27/2025 14:05

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Most Reported Problems

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

  1. Phone (49%)

    Phone (49%)

  2. Internet (28%)

    Internet (28%)

  3. Total Blackout (18%)

    Total Blackout (18%)

  4. E-mail (3%)

    E-mail (3%)

  5. Wi-fi (1%)

    Wi-fi (1%)

  6. TV (1%)

    TV (1%)

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:

  • 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?

  • 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

  • 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

  • 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 😡

  • mind4sportpsych Dr Karen Howells (@mind4sportpsych) reported from Cardiff, Wales

    @tescomobile I have not had a signal for 3 days now. I’ve been told that there is maintenance work being done on a local mast, but even when I move 30 mins away from home then I still don’t have a signal. What is happening??

  • 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?

  • 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?

  • 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

Tesco Mobile Issues Reports

Latest outage, problems and issue reports in social media:

  • MarkWL20 Mark Walker🏴󠁧󠁢󠁥󠁮󠁧󠁿🇬🇧 (@MarkWL20) reported

    @tescomobile as a loyal customer of yours I look forward to seeing your adverts on GB news #DontFundGBNews

  • GrahamLeakey Giddystone (@GrahamLeakey) reported

    Dear @tescomobile I have been a loyal customer for over 5 years. I believe in fair and balanced news in the UK. If you place advertisements with GB News, then I will change providers at the earliest opportunity. #DontFundGBNews

  • wordsrscalpels TJ Rajasekar (@wordsrscalpels) reported

    @DossyBrando @StopFundingHate @tescomobile #Tesco please don’t be blackmailed by these ignorant tweets. Advertise freely on GB news to reach whoever could be your potential new customer.

  • MildManThomps Nick Thompson (@MildManThomps) reported

    @tescomobile hello, if a phone was locked to O2, will a Tesco Mobile SIM work on it given you use O2’s network or will it need to be unlocked still? Thanks!

  • Eyespeeled3 Eyespeeled (@Eyespeeled3) reported

    @ceeforina @tescomobile Tesco uses the O2 network so you might wish to consider whether you'd use Tesco, O2, Giff Gaff, Sky or Lyca if O2 advertised. Similar with other networks with who uses who. It can be tricky taking a principled stance.

  • MikeR_yan Mike Ryan (@MikeR_yan) reported

    Hi @tescomobile is there a problem with mobile data in limerick?

  • davetenbob68 tenbob (@davetenbob68) reported

    @tescomobile I've been a customer with you for years, but if you advertise on GBNews I will find a new provider. #StopFundingHate

  • SATysonLtd S A Tyson Ltd (@SATysonLtd) reported

    @tescomobile CEO email address or a live address from a senior cs manager as I'm about to contact the ombudsman and ICO regarding failure to report a possible data breach and poor service that appears to breach Consumer Act 2015

  • MinicamMotors MinicamMotors (@MinicamMotors) reported

    Hi @Tescomobile, I’ve been a loyal customer of yours for many years. Please don't advertise with GB News channel or I will take my custom elsewhere. Thank you #DontFundGBNews

  • SATysonLtd S A Tyson Ltd (@SATysonLtd) reported

    @tescomobile perhaps keeping a case email address open until the customer is satisfied would help solve complaints quicker, especially after losing the phone sent for repair and promises to call back just don't happen...