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 12/20/2025 12:15

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Most Reported Problems

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

  1. Phone (47%)

    Phone (47%)

  2. Internet (26%)

    Internet (26%)

  3. Total Blackout (22%)

    Total Blackout (22%)

  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:

  • 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

  • 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

  • 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

    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 😡

  • 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?

Tesco Mobile Issues Reports

Latest outage, problems and issue reports in social media:

  • westaerialphoto Phillip West (@westaerialphoto) reported

    @Mrs_A_Campbell @tescomobile @SamsungMobile It wouldn't surprise me if this was a Samsung fault. My wife had the A50 when it first came out and it was nothing but trouble. Wifi kept dropping out, glitchy camera etc. In the end I just bought a Huawei phone sim free. Samsung are aware of some serious software issues but....

  • CaptainJames37 James Andrews (@CaptainJames37) reported

    @tescomobile Yes it’s obviously lost in transit and they have been in contact with Tesco mobile regularly, including today. It’s just very, very frustrating for them. If not resolved soon will have to take the complaint further

  • Hathor32563459 Hathor (@Hathor32563459) reported

    @tescomobile funny how there are 'high call volumes' when there is a problem, but never when they want to sell, or after money. Sickening.

  • cartoon_heart__ clare•👽📻 (@cartoon_heart__) reported

    @tescomobile Hey! How come you don’t have WiFi calling? Any plans of getting this on your network sometime soon?

  • andywilks86 andy (@andywilks86) reported

    Why’s the signal so terrible in the LA12 8NB area @tescomobile

  • LilacNannie LilacNannie (@LilacNannie) reported

    @O2 And that’s why no one should get a #Tescomobile on #o2 network - you don’t take responsibility for your failure. Take note people...

  • pmummy2 Paula C (@pmummy2) reported

    @tescomobile I’ve only been with you for a week. Already had a scam call about my NI number, and just had a scam text about a parcel!! Never had this problem with other providers 😡😡🤯🤬🤬

  • Jess_Simpson645 Jessica Simpson 🇬🇧🇬🇧🇬🇧 (@Jess_Simpson645) reported

    @tescomobile @O2 not sure which of you might be able to help me but I'm being absolutely bombarded with unwanted spam calls from O20 numbers. As quick as I block them they pop up again with a different number. Latest one 020 3768 9411

  • Mrs_A_Campbell Mrs Alison Campbell (@Mrs_A_Campbell) reported

    @tescomobile why is it since my phone got updated with new version of @SamsungMobile and it went to version 11 or something my phone has been horrible, slow, my WiFi keeps loosing signal even in same room as router. And keeps freezing. Is there anyway to undo the update

  • dafa_ho_jao_ ครђคг♓...LQ💚. (@dafa_ho_jao_) reported

    @tescomobile Need Help😭😭