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O2

O2 service status in Cardiff, Wales

Why is my O2 service not working?

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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.

Full Outage Map

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, Wales and surrounding areas. An outage is declared when the number of reports exceeds the baseline, represented by the red line.

At the moment, we haven't detected any problems at O2. Are you experiencing issues or an outage? Leave a message in the comments section!

Most Reported Problems

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

  • 40% Phone (40%)
  • 32% Internet (32%)
  • 21% Total Blackout (21%)
  • 3% Wi-fi (3%)
  • 2% E-mail (2%)
  • 0% TV (0%)

Live Outage Map Near Cardiff, Wales

The most recent O2 outage reports came from the following cities: Cathays.

CityProblem TypeReport Time
Newport Internet 2 months ago
Cardiff Phone 2 months ago
Cardiff Phone 2 months ago
Newport Phone 4 months ago
Porth Phone 5 months ago
Newport Phone 6 months ago

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.

O2 Issues Reports Near Cardiff, Wales

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

  • Bubwal
    Ade (@Bubwal) reported from Cardiff, Wales

    @RobBruceK @ThreeUK @O2 @EE @VodafoneUK No awful. Just spent 5 days with no data/calls due ti Insufficient bandwidth. My family and friends who were with O2/BT/Vodaphone had no problems. Worst ever. So regret leaving previous provider last month. Their coverage checker is inaccurate too

  • HywelButcher
    Hywel Butcher (@HywelButcher) reported from Cardiff, Wales

    Top tip - don’t join @O2 - incompetent and useless! First no 4G, now no signal or data at all 🤯

  • Statto1927
    Simon Hiscocks (@Statto1927) reported from Barry, Wales

    @O2 2/2 it’s like someone deliberately switches off the internet on match days, but I’m sure that doesn’t happpen.....😉 Signal is perfectly fine there usually, & if it’s vol7me of people, why are other able to connect seems like an O2 thing as my son & daughter also have problems..

  • jamieriddell
    Jamie Riddell (@jamieriddell) reported from Cardiff, Wales

    Hey @O2 who can I talk to about unlocking a phone. I've paid up and out of contact. Online form says no because of too many attempts ( no idea what my customer service code was) but I have all my account details.

  • LisardoVivas
    Lisardo Vivas (@LisardoVivas) reported from Cardiff, Wales

    @O2 @tig1985 I’m in cardiff with same issue

  • BradChanner
    Brad Channer (@BradChanner) reported from Cardiff, Wales

    @teamIPSE Without a doubt! And phone signal! It is appalling how bad the signal is in parts of the UK outside of London! I am 4 minutes from the Cardiff city centre with no signal! #howareyoumeanttorunabusiness @o2networks @O2 @giffgaff

  • StephenADwyer
    The Dwyer Identify (F) (@StephenADwyer) reported from Caerleon, Wales

    @O2 No signal for two , now on the third day , all your help lines etc are busy , no support or help , not the best customer service but you will still take my money , not impressed at all

  • callumcrowley
    Callum Crowley (@callumcrowley) reported from Liswerry, Wales

    @O2 customer service are an absolute joke - can’t wait to change my provider #pathetic

  • pwilliamsevents
    Paul Williams Events (@pwilliamsevents) reported from Tongwynlais, Wales

    Totally disappointed with @O2 customer service. A number transfer from a consumer account to business took 8 days when I was told it would take 24 hours. 3 phone calls to customer service and still not 100% sorted. #totallycrapexperience

  • ThisIsDanGuy
    Dan Guy (@ThisIsDanGuy) reported from Cardiff, Wales

    @O2 sucks that reduced the number of cafe Nero codes 😡

  • Statto1927
    Simon Hiscocks (@Statto1927) reported from Barry, Wales

    @O2 It’s CF11 8AZ. ardiff City Stadium. My point is that I can hardly get any connectiveity with a 4G signal showing. Someone sat next to me with EE can connect. Granted it’s a sports stadium but this was 60m before kick off with barley anyone in there. Happens every match 1/2

  • pwilliamsevents
    Paul Williams Events (@pwilliamsevents) reported from Tongwynlais, Wales

    @jolilford @O2 Your kidding me!!! I have contacted customer services 3 or 4 times. Shocking service

  • CJLittlemore
    Callum James Littlemore 🔶 (@CJLittlemore) reported from Cardiff, Wales

    @O2 I woke up this morning to find I’ve been totally cut off. I can’t make calls, send texts or use my mobile data. All of this is kinda important for my work as I’m self employed - I can’t call your customer service line to see what the issue is. Can you look into it please.

  • gavinlew
    Gavin Lewandowski (@gavinlew) reported from Butetown Community, Wales

    @ee need to kick a few cells around the Cardiff arena tonight very poor 4g coverage had to switch to your neighbours at @o2 for connectivity

  • daunce4thstreet
    Garry Dauncey (@daunce4thstreet) reported from Pontypridd, Wales

    Never use @O2 recycle! sent them a phone that was in perfect condition & now they say the phone is damaged and are offering peanuts for it. If it’s damaged blame the flimsy packaging you send.

  • andrewhillandCo
    andrew hill (@andrewhillandCo) reported from Abercynon, Wales

    @O2 @JohnnyMercerUK bit late that isn’t it - I think he has just a few followers who may have seen this and your ‘standard good customer response’

  • Rhian1975
    Rhian Langham (@Rhian1975) reported from Cardiff, Wales

    @O2 shocking attitude of customer service rep. Please get in touch.

  • Welsh_PA
    Mark Edwards (@Welsh_PA) reported from Cardiff, Wales

    @PA_Stacey Oh yes @O2 love to go OTT on bill notification. It’s a shame they don’t put more emphasis on sorting out their weak/phantom 4G signal 📡 #priorities

  • BradChanner
    Brad Channer (@BradChanner) reported from Cardiff, Wales

    @O2 This has always been an issue. We are with giffgaff whom I believe use your signal. I have tried everything. I have even bought a booster, but the reception coming into the booster isn’t enough to even make the booster work. Very frustrating. I have to sit in a window 4 reception

  • gingio
    Shane (@gingio) reported from Cardiff, Wales

    @jgfoxy @O2 @ThreeUK Good choice! I love being with 3 and find my signal is much better than that on my work phone which is o2.

O2 Issues Reports

Latest outage, problems and issue reports in social media:

  • LateefSaka
    Lateef (@LateefSaka) reported

    3 days since I signed up to @O2 and I’ve already had to call customer services like 4 times… please what network is good in the U.K. these days? Cost isn’t an issue.

  • LydiaLe39318294
    Lydia Lewis (@LydiaLe39318294) reported

    @O2 pls sort out your network, it's the second time within a couple of weeks where my 3g isn't working, can't make or receive phone calls when out and about, very frustrating 😡 if I needed to ring someone in an emergency such as friends or family, it would be useless

  • ladymunter
    ʍʊռ†ΣЯ (@ladymunter) reported

    Wtf is the point of having a supposed #O2Priority queue @O2AcademyGla when you CLOSE it and force everyone to join one massive snaking queue, @O2?! Between this and your Priority app crashing all the time, it’s just not worth it!! 🤬

  • MikeHuntTheMunt
    Mike Hunt (@MikeHuntTheMunt) reported

    @EnglandRugby @owen_faz @O2 That’s why he’s slow, can’t tackle and can’t keep up with play. Useless against Scotland and Finn Russell beat him in every department and the mighty 100+ cap useless captain got lured in every time to make mistake after mistake to give away tries.

  • WAHill
    Warren A. Hill (@WAHill) reported

    @EnglandRugby @owen_faz @O2 The poor form on the field is being reflected in the poor form in the gym. If your technique is incorrect you can cause injury to yourself!

  • hammykb
    KHam (@hammykb) reported

    @O2 Your network and lack of customer service is appalling. I advised you 1 week after joining 02 I had poor network. Fobbed off with “mast issues” and now you are holding me to pay for a service you cannot provide!!

  • eyeshoot
    Sarah Franklin (@eyeshoot) reported

    @O2 my iPhone isn’t working on mobile data in Spain, I have everything switched on, please help!

  • Tregolwyn
    Paul Roberts (@Tregolwyn) reported

    @O2 @eyeshoot Sorry to hijack your thread but I’ve had same problem. You need Settings-Mobile Data- Mobile Data Settings - scroll down to Reset button. Unfortunately, as I found out it may not resolve the issue but it’s worth trying. Good luck

  • RonnyMillburn
    Ronny Millburn (@RonnyMillburn) reported

    @EnglandRugby @owen_faz @O2 Clearly theres a load of people here who havent a clue about what theyve just seen. 3 reps at 60kg db chest press is a good lift. May have been a 1 rep max set and he went for it. 95% of people reading this probably couldnt lift a 60kg off the rack never mind press it

  • davegilsenan
    Dave Gilsenan (@davegilsenan) reported

    @O2 I cant fix your network, only you can. No signal at home, or all the way to my local major town, in the town, on the train to London. I have asked for you to cancel my contract but was told that I need to pay the full value until the end even though you cant provide the service