O2

O2 Outage Report in Cardiff, Wales

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The latest reports from users having issues in Cardiff come from postal codes CF24 and CF11.

O2 is the commercial brand of Telefónica UK Limited offering mobile phone and mobile internet service, including voicemail and SMS. With over 25 million customers, O2 runs 2G, 3G and 4G networks across the UK. O2 previously offered home broadband service.

Problems in the last 24 hours in Cardiff, Wales

The chart below shows the number of O2 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.

O2 Outage Chart in Cardiff, Wales 05/04/2025 00:00

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Most Reported Problems

The following are the most recent problems reported by O2 users through our website.

  1. Phone (56%)

    Phone (56%)

  2. Internet (23%)

    Internet (23%)

  3. Total Blackout (12%)

    Total Blackout (12%)

  4. E-mail (4%)

    E-mail (4%)

  5. Wi-fi (4%)

    Wi-fi (4%)

  6. TV (1%)

    TV (1%)

Live Outage Map Near Cardiff, Wales

The most recent O2 outage reports came from the following cities: Newport, Pentyrch, Cardiff, Weston-super-Mare and Pontypridd.

Loading map, please wait...
City Problem Type Report Time
United KingdomNewport Internet
United KingdomPentyrch Phone
United KingdomPentyrch Phone
United KingdomPentyrch Phone
United KingdomCardiff Phone
United KingdomCardiff TV

Community Discussion

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O2 Issues Reports Near Cardiff, Wales

Latest outage, problems and issue reports in Cardiff and nearby locations:

  • SamHallWales Sam Hall 🏴󠁧󠁢󠁷󠁬󠁳󠁿🐾🐾🌈 (@SamHallWales) reported from Cwmbran Central, Wales

    This Christmas, @O2 is donating data to those who need it. For every tweet using #O2DataPledge this Giving Tuesday, they'll donate even more data to the National Databank. Tap below to tweet your support 👇

  • Daniel_Lyddon Daniel Lyddon (@Daniel_Lyddon) reported from Cardiff, Wales

    (1/4) Not a week after I was horrifically abused by an @o2 #CustomerServices agent, and even after I settled the payment issue (ongoing problems with #O2 automated systems since last Aug/Sep) that very day, I have today received three consecutive threatening/#legal letters...

  • sarlpar Sarah (@sarlpar) reported from Henllys, Wales

    @O2 your coverage in the Cwmbran area NP44 is shocking, no end of people on O2 post about the poor signal especially around the Llanyrafon and Henllys/TyCanol area. When we ask about if there are any signal issues we’re told there’s not, Vodafone, EE and 3 work prefect. 😖

  • bigjeans68 Eugene O’Carroll (@bigjeans68) reported from Langstone, Wales

    Shocking signal today on o2 postcode NP18 1NF @O2 @mrsclart

  • Taxiboi3583 Adam Smith #BlackLivesMatter (@Taxiboi3583) reported from Beechwood, Wales

    @O2 Totally ignored my actual question, do I get a rebate on my bill if I experience technical issues?

  • cymboi MH 🏴󠁧󠁢󠁷󠁬󠁳󠁿🏳️‍🌈🇪🇺 #yescymru (@cymboi) reported from Victoria, Wales

    @O2 How is that great value for a customer, when a sim only package is £30, yet its £35 when you purchase it with a phone?

  • sarlpar Sarah (@sarlpar) reported from Henllys, Wales

    @O2 It’s been going on for months, I have friends dotted around NP44 and they all struggle making phone calls as they keep dropping out, it’s not something new it’s an ongoing issue. I’d change if I wasn’t tied in and I think you’ll find other would too if they could. So frustrating

  • Daniel_Lyddon Daniel Lyddon (@Daniel_Lyddon) reported from Cardiff, Wales

    30 mins on hold to @O2 customer services, spoke to an agent who has now put me on hold to speak to transfer me to #CustomerServices...so God knows who the hell I got through to 🙄😡 #FirstWorldProblems

  • uncriticalsimon Simon 💉💉💉🐉 (@uncriticalsimon) reported from Newport, Wales

    @jasonmackenzie @O2 OK I once had trouble with EE (not for the mobile service but when I switched to broadband), it got so bad that I decided to go back to Sky. (NB now with TalkTalk, also not great for customer service but OK if nothing goes wrong.)

  • Daniel_Lyddon Daniel Lyddon (@Daniel_Lyddon) reported from Cardiff, Wales

    (4/4) ...as being the fault of an automated system, without any recompense or any attempt to suggest that they can improve, is horrifying. I feel almost constantly threatened, intimidated, and abused by @O2 due to an issue that they caused, and they are making no attempt to fix.

  • Lea_May_ Lea French (@Lea_May_) reported from Cardiff, Wales

    @O2 don't recommend upgrading with o2. Terrible service, can't speak to anyone on the phone and waited for over a week for my delivery that was due on Monday!

  • rich_t1977 Rich!! (@rich_t1977) reported from Weston-super-Mare, England

    @O2 Poor customer service again!!! Can’t get hold of anyone and just going round in circles on there so called, help, pages!!!

  • tweetkattweet Kathryn (@tweetkattweet) reported from Weston-super-Mare, England

    @O2 hi, I’ve been waiting for a SIM card to be delivered for over a week, tried speaking to your support people who wanted the code they’d sent to the phone which I couldn’t give them as I don’t have the phone! So frustrating

  • cymboi MH 🏴󠁧󠁢󠁷󠁬󠁳󠁿🏳️‍🌈🇪🇺 #yescymru (@cymboi) reported from Newport, Wales

    @virginmedia @O2 Why is your Hotspot so poor? Never connects!

  • Daniel_Lyddon Daniel Lyddon (@Daniel_Lyddon) reported from Cardiff, Wales

    If it wasn't for all the free benefits I got with @O2 Priority, I'd ditch them. Their #CustomerService is abysmal. It's like being in some weird kind of abusive relationship: "we'll treat you like **** but give you lots of free stuff so you'll want to stay with us" 🙄😡

  • BigDogWrestler Super Blue Eye Dog (@BigDogWrestler) reported from Cardiff, Wales

    How can @O2 sponsor the World's most popular concert venue as in @TheO2 but can't give me a decent signal for 50% of my day?

  • Daniel_Lyddon Daniel Lyddon (@Daniel_Lyddon) reported from Cardiff, Wales

    (2/4) ...from @o2 dated TWO DAYS after the issue was, I was told, cleared up. A call to #O2 #AccessForYou this afternoon shows the issue is cleared up and the letters are auto-generated because payments can take up to 48hrs to register with O2...

  • BigDogWrestler 🌈 Champ (@BigDogWrestler) reported from Cwmbran Central, Wales

    @O2 why is my signal often very poor and I mean often and very very poor?

  • ChrisEddy_7 Eddy 🏴󠁧󠁢󠁷󠁬󠁳󠁿 (@ChrisEddy_7) reported from Cardiff, Wales

    It’s come to something when you can get 4 bars of 4G signal walking between Benidorm and Albir in Spain but can’t even get 3 bars of 3G signal in Cwmbran South Wales 👀 @o2

  • divyaparikh_ Divya (@divyaparikh_) reported from Cardiff, Wales

    @O2 Thanks for all the help @O2! Just got a call saying matter has been resolved.

O2 Issues Reports

Latest outage, problems and issue reports in social media:

  • laughjosephine j (@laughjosephine) reported

    @meeshymoomin @O2 @Virgin I’m not even in contract but because I live in eco housing it’s all we can have. They’ve charged me for tv phone and internet for five years yet I do t have tv or phone, the line doesn’t even work. now the internets down it’s taken two days to get an engineer that’s hasn’t arrive

  • cookywook Richard Cook (@cookywook) reported

    @O2 I mean the ones on the tube. My steps are: 1. Connect the Virgin Wifi hotspot on the platform 2. Tap login with o2 3. Put in my phone number It says I’m not registered and you’ll send me a text. I don’t know where to register, and I’ve never got a text.

  • pabritcho blowfish (@pabritcho) reported

    @O2 please, get better your services in Manchester, it’s never working as good as it could be 😭

  • MartinH63295825 Martin Hardy (@MartinH63295825) reported

    @O2 @SamsungMobile Worst customer service in the world. Tried (called 7x) to cancel sim within 14 days on my partners account (i upg instead), charged 25, told it was canceled, now have a final bill of £395.00, telling us to cancel DD which results in missed payments. WHAT THE HELL IS GOING ON?

  • LilChilliSaka 🅾🅷🅷 🆃🅾 🅱🅴 🅰 🅶🅾🅾🅽🅴🆁 (@LilChilliSaka) reported

    @O2 hi I have been a customer for 17 years and I have been trying to get an upgrade but you a refusing until I pay £355.00 off my currant device one of you’re advisor admitted that you can wavie the cost when this option is available so why can’t you wavie off?

  • OliviaPopa Olivia Popa (@OliviaPopa) reported

    @O2 @SamsungMobile You should sort out the fraudsters that use your network and shops to scam people. How can such a big company not even have a fraud department phone number to talk to customers🤬😡🤬

  • confuzzeled1989 Jess Crosby (@confuzzeled1989) reported

    I have never felt so upset and sick after a phone call with a customer services department. 4 weeks I have been trying to resolve a mistake @O2 have admitted was theirs. Now a rude customer services person. #O2dobetter #Awfulcustomer

  • LifeofThaqib The Life Of Thaqib (@LifeofThaqib) reported

    Is it me or has the @O2 network been rubbish within the last two weeks..!

  • craigbartleyof1 @craigbartleyofficial (@craigbartleyof1) reported

    And she has had 10 threatening letters about a phone that she doesn’t have and never has had. Shocking behaviour @O2

  • lauelis93 lauren (@lauelis93) reported

    @O2 cannot make outgoing calls. Help?