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 01/16/2026 02:05

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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 (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:

  • 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

  • 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

    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 😡

Tesco Mobile Issues Reports

Latest outage, problems and issue reports in social media:

  • johnpilks John Pilkington PT (@johnpilks) reported

    Utterly appalling service from @tescomobile Asked for replacement SIMs over a week ago. Service on both original numbers cut off on Monday. One replacement arrived on Wednesday. Other has been lost or not issued. Put on hold for 15 minutes, then cut off. 😡🤬😡🤬😡🤬

  • krazeenaz Nasir Miah (@krazeenaz) reported

    @tescomobile Does this number belong to your network then

  • Shesco73 Sheila (@Shesco73) reported

    @tescomobile I’ve had no connection for hours is there a problem 👀

  • OlatunjiKwabena Kwabena Olatunji (@OlatunjiKwabena) reported

    @tescomobile Yes I did that on my old phone with the sim inside. What do I do now my current sim is still inside the old phone. When I lose signal on that phone, do I put the new 5G sim into the new one?

  • sarahpsyc Dr Sarah 💙 (@sarahpsyc) reported

    @tescomobile @EE could learn from @tescomobile ...whilst for me, hiking my contract (quite a bit this time I might add) isn’t a huge issue - for others right now it’s a cost they probably can’t afford

  • mum_of_three_ Katie (@mum_of_three_) reported

    @tescomobile hi, I paid an early upgrade fee by card to upgrade a phone on my account but I have been invoiced for this month and the the upgrade fee has been added on to the bill. Can someone help me with this please

  • brian_wilshaw Brian Wilshaw (@brian_wilshaw) reported

    @tescomobile After a few years of great service very disappointed with our sim upgrade. Website told us next day delivery, sims didn't arrive, customer services replaced the lost in transit sims now both my wife and my mobiles have been disconnected and we haven't received sims.

  • OlatunjiKwabena Kwabena Olatunji (@OlatunjiKwabena) reported

    @tescomobile hi I just got my new phone. My current sim is still inside the old phone. I sent the code swap also to the number it said to wait until I get no signal. Do I move it to the new one ? Or do I keep it inside the old phone? The new phone is 5G sim.

  • ClaireAFC2020 Claire 🌜🌞 (@ClaireAFC2020) reported

    @tescomobile @ThreeUK should be sorry for the absolute con of unlimited internet however, phone only works on wifi! The signal is shocking

  • Toni_2810 toni jackson (@Toni_2810) reported

    @tescomobile You’ve made me pay a whole year for a phone I don’t even have or use because the handset contract was different to the tariff? When I asked last year for support basically was told to go away & pay it for another year.. disgusting service ..