O2

O2 Outage Report in Cardiff, Wales

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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 05/25/2025 05:20

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Most Reported Problems

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

  1. Phone (53%)

    Phone (53%)

  2. Internet (25%)

    Internet (25%)

  3. Total Blackout (12%)

    Total Blackout (12%)

  4. Wi-fi (4%)

    Wi-fi (4%)

  5. E-mail (4%)

    E-mail (4%)

  6. TV (1%)

    TV (1%)

Live Outage Map Near Cardiff, Wales

The most recent O2 outage reports came from the following cities: Pontyclun, Newport, Pentyrch and Cardiff.

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

Community Discussion

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O2 Issues Reports Near Cardiff, Wales

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

  • themarkhawkins Mark Hawkins (@themarkhawkins) reported from Barry, Wales

    @viv_wilson @O2 I am in CF62 area, I haven't been able to get more than one bar for years, forget 3/4g Only keep it as I get a good signal in work.

  • gareth_thmpsn Gareth Thompson (@gareth_thmpsn) reported from Cardiff, Wales

    @O2 guys is there a backlog in complaints? I responded to a complaint on the 06/10/20 no reply, 20/11/20 no reply. I’ve now sent a further email today and I’ve no faith in it being responded to. Original complaint was 04/09/20.

  • gareth_thmpsn Gareth Thompson (@gareth_thmpsn) reported from Cardiff, Wales

    What is the point of complaining to @o2? Complaint sent 06/09 multiple times chased up formally 20/11 no reply now 06/0/21. Told someone looking at as a priority still nothing @MarkEvansO2

  • flowersshanice S H A N I C E (@flowersshanice) reported from Cardiff, Wales

    @O2 @Gropinvillain In all these years I’ve been with @O2 I’ve never ever had nothing for bro g a loyal customer, maybe it’s time I cha he networks after my contract is finished!!

  • Hayeley Hayley (@Hayeley) reported from Cwmbran Central, Wales

    @O2 is there an option to setup a direct debit without making a phone call? It used to be set up but for some reason didn't change when I used the Switch service to move banks and I'm fed up of being told I'm behind on a payment. Can I do it via the app? Thanks

  • STJonesx S T Jones (@STJonesx) reported from Alway, Wales

    Hi @O2 as you’re aware I’ve been on no service now for over 3 weeks, any updates yet or? Or do I just continue to pay £60 a month for a phone I can’t use unless I leave my house ?? If someone with a brain cell can get in contact that would be fab 👍🏻

  • PattersonLela1 Lela Patterson (@PattersonLela1) reported from Barry, Wales

    Hi @O2. If you received a notification that a sound was played from my phone, please don’t worry. I was just testing out the Find My app on my iPhone, as I’ve never used it before, so I just wanted to check it out and see how it worked. Thank you and sorry. :)

  • BristolOli Bristol Oli (@BristolOli) reported from Cardiff, Wales

    @BS3Rob @O2 @WBA Been horrendous for weeks - Can’t complete a call without having to call back numerous times - BS3 probably the worst of them all but M4 corridor from Cardiff to Bristol is a close second

  • STJonesx S T Jones (@STJonesx) reported from Alway, Wales

    When you’ve not been able to make any calls or texts whilst at home for the last 2 weeks as your phone is constantly on no service! 😡😡 take your time resolving this issue @O2 !!!!!!!!!!!!!

  • nopantsuk Nick Thorogood (@nopantsuk) reported from Llanharan, Wales

    @O2 my number should be ported to you today that I requested yesterday morning. I’ve had no confirmation texts or emails though and number still on old network. Any ideas?

  • PattersonLela1 Lela Patterson (@PattersonLela1) reported from Barry, Wales

    @O2 I didn’t receive an alert and neither did my family. It’s a fantastic idea, though! Are all Network operators doing this? :)

  • STJonesx S T Jones (@STJonesx) reported from Alway, Wales

    3rd week of no signal and @O2 in absolute NO rush to fix the issue. Can’t wait to cancel my contract this week 🥳

  • LisaEdwards78 LisaEdwards78 (@LisaEdwards78) reported from Barry, Wales

    @O2 Hi there I have had a highly Sophisticated national insurance scam call from a number registered to your network. There was an automated message purporting to be from the national crime agency. Please can you investigate this number 07850058296

  • BristolOli Bristol Oli (@BristolOli) reported from Cardiff, Wales

    @BS3Rob @O2 Glad it wasn’t just me - No signal anywhere near the ground

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

    (1/3) Sad to say that @O2 are now trying to charge me for a service never used, when I cancelled a mis-sold contract within the 14-day cooling-off period. Almost two months later they're now saying they're going to charge me a late payment fee, plus the bill...

  • gareth_thmpsn Gareth Thompson (@gareth_thmpsn) reported from Cardiff, Wales

    @O2 There’s delay then there’s rude. Been 92 working days or 128 days since I complained. @o2 are making it deliberately difficult to contact.

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

    This weather properly has me over a barrel. Mistreatment by @O2 properly has me feeling down. My #CovidVaccine pain is bad. Some days the demons are just too much to battle...but today is not one of those days. Rest, relax, refocus. #MentalHealthMatters #BipolarDisorder

  • DennerSusan susan denner (@DennerSusan) reported from Cardiff, Wales

    @O2 Customer service shocking! No service on phone since 24th May, SIX calls made to your call centre to resolve issue - now being told to wait for

  • Garethbird85 gareth bird (@Garethbird85) reported from Newport, Wales

    @O2 can someone from customer service contact me please

  • meribelman Peter Williams (@meribelman) reported from Penarth, Wales

    @virginmedia I would happily self serve online, via a browser or app, as you incessantly encourage me to do, but when the page says “oops something went wrong, we’re unable to change your package online”, its very frustrating. @O2 will help you soon!

O2 Issues Reports

Latest outage, problems and issue reports in social media:

  • sophietimms Sophie Timms (@sophietimms) reported

    @O2 I swapped to your service a couple of months ago- but I rarely have enough signal to make/receive calls, I can’t ever text/ call android phones and w wifi on underground I can’t iMessage. Is there a chance my contract didn’t switch over properly? I don’t know what to do!

  • tricia_ann_h Tricia Hounslow 💋 (@tricia_ann_h) reported

    @o2 I have just taken out a new contract online and the phone is coming today. The tariff has been updated in my o2 account but doesn’t show the £7 airtime discount shown in the offer I took out. I haven’t had an email with the new contract. Can you help please.

  • JonnyBarber27 Jonny Barber (@JonnyBarber27) reported

    @O2 I have no service on the old or new sim

  • TobyDickinson Toby Dickinson (@TobyDickinson) reported

    Hi @O2, you’ve sent me 4 texts in the past fortnight telling me our local mast is broken (which we already knew). Any chance you could fix it please? @LeedsNews

  • monnotfound mon ♡ˢ quackity (@monnotfound) reported

    @O2 @HallyuPopFest could someone with o2 help me sign up? 🥺

  • _Mac95_ Mac✌🏼 (@_Mac95_) reported

    @O2 have got the be the worst network/company ever yeno the robbin *****

  • sheepburd Liza McDermid (@sheepburd) reported

    @O2 is there an issue with your payment system? Tried twice to pay bill online, called and agent tried twice. None have been successful but I am able to use the card to purchase elsewhere? I do not want a late fee on my bill. Thanks

  • BertieMeds BMeds (@BertieMeds) reported

    @O2 can you help me understand why I've been charged over £40 for one day data use while abroad instead of the standard O2 Travel cost ?

  • kaffachino kat (@kaffachino) reported

    @O2 Hiya, the side button on my iphone has broken, i’ve had it on contract with you for over a year. is it possible to get the fixed? and approx how much would it cost?

  • EllisLauraLee ¯\_(ツ)_/¯ (@EllisLauraLee) reported

    What’s going on with @O2 service. Have just dropped from 4G to 3G coverage in central London.