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 12/19/2025 08:55

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Most Reported Problems

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

  1. Phone (46%)

    Phone (46%)

  2. Internet (26%)

    Internet (26%)

  3. Total Blackout (23%)

    Total Blackout (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:

  • 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 😡

  • 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?

  • 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?

  • 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

  • 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

Tesco Mobile Issues Reports

Latest outage, problems and issue reports in social media:

  • suz_sue sue_ hope (@suz_sue) reported

    @tescomobile Have done all this before I tweeted, I went about 8 miles, was working when I left home, did not work in Dorchester as tried to use parking app and still not working at home. Still not working but have it here on a regular basis sadly when the weather isn't good.

  • RooAndrews6 Roo Andrews (@RooAndrews6) reported

    @PucatuB @tescomobile Thank you! He’s had problem after problem with them, they won’t let him out of his contact unfortunately but once this one is over it’s safe to say he will be jumping ship to a new phone company. I’m just glad I’m not with them!

  • tea_one_sugar Katie Gentry 💙 (@tea_one_sugar) reported

    @tescomobile I sent a letter of complaint a week ago, no response yet, just reminders telling me I need to top up. I have given up and bought another phone. This has gone on for nearly five months! Everyone I have spoken to online or on the phone has been lovely but I'm livid with the company

  • BiLionLeon Leon Lavender (@BiLionLeon) reported

    So in my recent email complaint I mentioned that I've been able to get a new passport using the deedpoll @tescomobile rejected, but they totally ignored that, so I've repeated my question. I'm interested to see if they give an actual answer or continue to dance around it.

  • _kkkkatieee_ 💜Katie💜 (@_kkkkatieee_) reported

    @tescomobile is the Tesco mobile website down? Not working on my laptop or phone, a few others are having this issue too.

  • teachergirl1961 Elaine Smart (@teachergirl1961) reported

    @tescomobile This morning I phoned Tesco Mobile while in John Lewis to confirm that the Apple Watch I wanted to buy was supported by Tesco mobile. The lady said yes and that it would not cost me any extra on my tariff. The lady lied, Tesco Mobile does not support the Apple Watch.

  • K_Flynny369 K.Flynnx Woman in a Mask 💙 (@K_Flynny369) reported

    @RooAndrews6 @PucatuB @tescomobile If you have evidence they are acting unreasonably, tell them you’ll be taking this up with Ofcom. At the very least it’s another complaint registered against them, which they don’t like.

  • birdsong074 birdsong (@birdsong074) reported

    @tescomobile Hi, I assume you mean logged in using desktop/laptop as opposed to the App? Can you provide me with a customer service telephone number please?

  • ThatsASecretLOL Mark Baker (@ThatsASecretLOL) reported

    @tescomobile It’s not the phone or the sim. I have one sim in an iPhone 12 Pro max and one in a Samsung Galaxy a42 5G. My wife also has an iPhone 12 Pro max with you and they are all having trouble. A call dropped 10 times on Monday when travelling from porthcawl to Barry so no it’s not us!

  • ThatsASecretLOL Mark Baker (@ThatsASecretLOL) reported

    @tescomobile Thanks for that link. I have just checked multiple post codes in the CF range from cf31 to cf71 and they all have an issue. Who can I contact for compensation due to lack of stable service