Tesco Mobile

Tesco Mobile Outage Report in Cardiff, Wales

Problems detected

Users are reporting problems related to: phone, total blackout and internet.

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 12/09/2025 15:00

December 09: Problems at Tesco Mobile

Tesco Mobile is having issues since 02:00 PM GMT. Are you also affected? 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 (45%)

    Phone (45%)

  2. Total Blackout (28%)

    Total Blackout (28%)

  3. Internet (23%)

    Internet (23%)

  4. E-mail (4%)

    E-mail (4%)

  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?

  • 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

  • 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

  • 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??

  • 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

  • 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?

  • 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?

  • 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 😡

Tesco Mobile Issues Reports

Latest outage, problems and issue reports in social media:

  • weirside2000 David Sink (@weirside2000) reported

    @tescomobile so first contacted you on 30th March, was assured you were aware of the problem with no contact information being shown when receiving a call, yet here we are 9th April and it’s still on going & absolutely no contact from yourselves!

  • KevinElson13 Kevin Elson (@KevinElson13) reported

    @tescomobile thanks for having a rubbish service, saving me money as i can't get my bets on 😡

  • KaniaMcKalliah 🏴󠁧󠁢󠁳󠁣󠁴󠁿𝕂𝕒𝕟𝕚𝕒 𝕄𝕔𝕂𝕒𝕝𝕝𝕚𝕒𝕙🇺🇲 (@KaniaMcKalliah) reported

    @tescomobile #tescomobile Morning guys. My Samsung Galaxy A21s is NOT charging! I have TWO good cables and plugs, etc. I have tried them all in different plugs, outlets, etc. Please help. I am on a two year plan with you all and the phone is mine. TY

  • bob76a bob76a (@bob76a) reported

    @tescomobile I cannot connect as I am getting “no signal”. Post code SP3, previously OK. Your web pages are designed to make it impossible to contact you. How do I get in touch with you, don’t tell me to use your app I want a telephone number for my landline.

  • Leicester4life Steve (@Leicester4life) reported

    @tescomobile I have just ported my phone number to Tesco mobile however my phone is telling me to sign in to the O2 network how do I resolve this issue?

  • AmyJ21xo Amy Hatton-McCarten (@AmyJ21xo) reported

    @tescomobile I can see a few others have had the same issue.. my messages work for everything else

  • JoMamajojo Jo (@JoMamajojo) reported

    @tescomobile Hi, hope you can help...My phone stopped sending and received texts/ calls and using mobile data last week. Took my phone instore - they said it was likely the sim. After doing some online chat with you they said my number would be swapped to a new sim. Followed

  • its_fundamental fundamentally its a bargain (@its_fundamental) reported

    Don’t understand what the helpful network actually is. What is helpful about the Tesco mobile network. Surely nothing to do with trolleys. #tescomobile

  • CarlMalkin6 Carl Malkin 💙 (@CarlMalkin6) reported

    @tescomobile I've done all that Liz. I've sent screenshots, talked to the chat people in India, spent 5 hours in DMs on Twitter, talked to customer services on the phone and in store. I have tried 3 different devices and 3 web browsers. Mi-Pay is broken.

  • KatrinaTulip Katrina Tulip (@KatrinaTulip) reported

    @tescomobile Today is my expected delivery day and it’s still not working