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 01/09/2026 04:25

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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 (27%)

    Internet (27%)

  3. Total Blackout (16%)

    Total Blackout (16%)

  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:

  • 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 😡

  • 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?

  • 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?

  • 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

  • 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??

  • 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

  • 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?

Tesco Mobile Issues Reports

Latest outage, problems and issue reports in social media:

  • archuk123 David Archer (@archuk123) reported

    @tescomobile I know. And I’m saying that it’s a con. I should be allowed to continue the other agreement separately. Yes I know it’s in the small print. Thank you for the reply (over a month since I originally posted). Tesco? Never again.

  • sairh1972 sarah kendrick (@sairh1972) reported

    @tescomobile discussed in your service ordered 2 sim only deals paid £14 upfront on the 11th of April called up on the 13th of April to cancel as u don’t do Wi-Fi calling was told the refund would go back into my account after 2 weeks but nothing !!!

  • StevenWilks990 Steven Wilks 🇺🇦 (@StevenWilks990) reported

    @tescomobile Hi Liz, checked that service map and I should be getting 4G. I put my phone directly next to another tesco mobile phone, and that one has one bar of service as well as H+, but I have nothing on both of those fronts. Help. Thanks!

  • SherlockRichard Richard_Sherlock (@SherlockRichard) reported from Llanelli, Wales

    @tescomobile I've had no service for 16 hours now im fuming 😤

  • 3r1n0 erin (@3r1n0) reported

    @tescomobile hi would you be able to help me with a query I have?

  • Diane_Ihirwe Diane (@Diane_Ihirwe) reported

    @tescomobile charging me over €150 for data I used (in 1 day) of despair is horrible. After years of being a loyal customer, they can keep that nbre bse I can't afford to pay 150 and it's extremely inconsiderate to not make allowances for these things. I would 100 not recommend!

  • SketchMM Sketch Kanczuk Socialist no longer Labour member. (@SketchMM) reported

    @tescomobile @WhichUK ....What about the calls dropping out due to lack of network, when on the phone to my sick daughter, or when calling the doctor etc? Told a manager would call me and they did not. Had £19.45 left on my account which wont be paid back to me. Just glad to be rid of you!

  • MichaelAyres92 Michael Ayres 🇺🇦💙💛 (@MichaelAyres92) reported

    @tescomobile I bought a £10 10GB sim at your store to check signal where I am, I want to sign up for a sim only contracted online (unlimited data), can that be done to the sim card I just bought or will I have to wait for a new one to be delivered?

  • Stephanie_Jane_ Stephanie Jane (@Stephanie_Jane_) reported

    @tescomobile @NeilNWLondon I have completed fault finding exercises most days, I am sure you can appreciate the frustration of being asked to do the same thing each day with no promising outcome. I am reasonable and hace followed these each time and no one seems to know the cause of the issue.

  • wannnabeeArcher Sarah Treeby (@wannnabeeArcher) reported

    @tescomobile it’s bad enough being a victim of crime but then to be left without a phone for over a week and fobbed off that the sim will be with me in 3 days no 5 no soon. When someone is made vulnerable how about using next day delivery? Unhappy customer right here!