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 12/25/2025 23:20

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Most Reported Problems

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

  1. Phone (48%)

    Phone (48%)

  2. Internet (28%)

    Internet (28%)

  3. Total Blackout (19%)

    Total Blackout (19%)

  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 😡

  • 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?

  • 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

  • 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?

  • 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:

  • Emperor_juk1234 Caledonian Man (@Emperor_juk1234) reported

    @tescomobile I cannot talk to customer services online because apparently yous are busy. I could not access a phone number also. Everytime I disconnect from WiFi, my mobile Internet automatically starts even though I turned it off in settings. Therefore I want to get it sorted.

  • NoNW10dump Stop the waste plant #FBPE (@NoNW10dump) reported

    @tescomobile Hi, I have a PaYG phone which has stopped working. Can you help please?

  • IanCooke1616 Ian (@IanCooke1616) reported

    @tescomobile It's not causing me any inconvenience but it is losing current and potential customers who live out in the countryside with little to no signal and wifi calling is essential. So your basically saying those people don't matter

  • RubyTinkerbell RubyTinkerbell (@RubyTinkerbell) reported

    @tescomobile I'm paying for a 25gb package, but your signal is non-existent & I'm never able to get online to do anything!; so I take it I can cancel my contract & go elsewhere without getting charged? I'm paying for a service, which I want to use, but you're unable to provide!

  • pseudopolisyrd Sam Vimes (@pseudopolisyrd) reported

    @tescomobile Callum, please accept my apologies, internet does work. Just bad coverage were sister lives

  • mikegrichards Mike Richards (@mikegrichards) reported

    @tescomobile Hi just joined you after leaving 3. You have retained my number but when you send one time code to sign in it goes to original number for new SIM not my number you have ported over.

  • ParsnipTart Ian Parsons (@ParsnipTart) reported

    @tescomobile Probably the worst customer service on line and telephone in the UK today!

  • molleeybroc MaryGerarda (@molleeybroc) reported

    @tescomobile network hugely acting up in Kilkenny today. Do you know what's going on?

  • ML7717 Marie (@ML7717) reported

    @tescomobile my son put a £15 pack on his phone two days ago, and for some reason the pack hasn't gone on properly and it's used it all as credit. Just had to buy another pack. Please help

  • Michaelinsussex Michael 👽 (im not human) (@Michaelinsussex) reported

    @tescomobile is seriously not impressed at the moment. I deferred a payment in October to be paid in November and wasn't informed at the time that my credit file would be impacted. Now I've got a red mark on my folder. Doesn't help when I'm trying hard to rebuild my credit.