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 01/18/2026 12:25

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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 (28%)

    Internet (28%)

  3. Total Blackout (15%)

    Total Blackout (15%)

  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:

  • 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

  • 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?

  • 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 😡

  • 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

Tesco Mobile Issues Reports

Latest outage, problems and issue reports in social media:

  • cymraesydwi Cymraesydwi 🏴󠁧󠁢󠁷󠁬󠁳󠁿 🇺🇦 💜🤍💚 (@cymraesydwi) reported

    @philburns @tescomobile Thanks Phil. There are no known issues where my son is according to the postcode checker Tesco just sent me. He's in the middle of Cardiff to should have no issues using data. I've zero confidence as Tesco have left me unable to use my phone outside my house since 6th Dec.

  • revpeek Alan Peek (@revpeek) reported

    @tescomobile Your MMI code to increase call ring time is still not working after 3 months! My phone goes to voicemail after just 5 seconds and it is SO annoying for clients!

  • cymraesydwi Cymraesydwi 🏴󠁧󠁢󠁷󠁬󠁳󠁿 🇺🇦 💜🤍💚 (@cymraesydwi) reported

    @philburns @tescomobile Yup! I'm repeatedly being told there's no update, we understand your frustration and there's no timeframe for my issue to be fixed. Ace!

  • philburns Phil Burns 💭 🏴󠁧󠁢󠁷󠁬󠁳󠁿 🏴󠁧󠁢󠁷󠁬󠁳󠁿 (@philburns) reported

    @cymraesydwi @tescomobile Also, my daughter is in Cardiff now, on same network, and I can see where she is, so something is working!

  • revpeek Alan Peek (@revpeek) reported

    @CliffSinc @tescomobile I am having the same problem and fault message despite using correct MMI code! My phone stops ringing after 5 seconds. Tesco mobile staff on App simply fob off by saying 'its a software issue' and it's awaiting resolution. Been saying that for 3 months since I first complained

  • cymraesydwi Cymraesydwi 🏴󠁧󠁢󠁷󠁬󠁳󠁿 🇺🇦 💜🤍💚 (@cymraesydwi) reported

    @tescomobile is quite honestly the worst company I have ever had the misfortune to deal with.

  • leahpgrant MrsG 🏴‍☠️ (@leahpgrant) reported

    @tescomobile just a small tip please change your courier as @DPDgroup_news are absolutely shocking, terrible customer service too!!! Still waiting on our delivery!

  • originalbagstar Bagstar (@originalbagstar) reported

    @tescomobile my disabled partner has been having trouble with her phone for last two weeks due to SIM card saying not registered on network. Phoned 5 times and spent 2 hours in shop. Currently no phone, terrible customer service

  • NickHackett2 Nicholas (@NickHackett2) reported

    @tescomobile can you get 02 to fix there mast as it’s been playing up since August in SA7 area @Ofcom they literally lots of people who are are complaining about it on Facebook group. Calls cut out, data not always working and didn’t leave a miss call to my dad phone today.

  • Aikonsteve CityBoy (@Aikonsteve) reported

    @GrannyGloom @tescomobile … companies don’t want bad publicity appearing on the court pages of local paper, not good for sales!