O2

O2 Outage Report in Cathays, 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 Cathays, Wales

The chart below shows the number of O2 reports we have received in the last 24 hours from users in Cathays and surrounding areas. An outage is declared when the number of reports exceeds the baseline, represented by the red line.

O2 Outage Chart in Cathays, Cardiff, Wales 02/18/2026 02:00

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Most Reported Problems

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

  1. Phone (52%)

    Phone (52%)

  2. Internet (30%)

    Internet (30%)

  3. Total Blackout (11%)

    Total Blackout (11%)

  4. E-mail (4%)

    E-mail (4%)

  5. Wi-fi (3%)

    Wi-fi (3%)

  6. TV (%)

    TV (%)

Live Outage Map Near Cathays, Cardiff, Wales

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

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

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 Cathays, Wales

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

  • 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...

  • acdavies67 anthony davies 🇾🇪🔰🏴󠁧󠁢󠁷󠁬󠁳󠁿🇺🇦 (@acdavies67) reported from Barry, Wales

    Well I've gotta be honest,never again will I take another phone contract out with @O2,wherever I go in a 50 mile radius of my home,my signal is **** and they called me last week offering me more data,more data ?,*******, i can't get anywhere near my data limit now ffs 😡😡😡😡

  • 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?

  • 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.

  • 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

  • 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!!!

  • 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?

  • CharlBalcombe Charlie Balcombe (@CharlBalcombe) reported from Cardiff, Wales

    @O2 hello! I forgot to put my UNiDAYS on when purchasing my new phone contract and I’m struggling to add it on after, is it possible you could help me with that please? :-(

  • 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" 🙄😡

  • DaiSmashie Dai Smash/DavidDoran (@DaiSmashie) reported from Cwmbran Central, Wales

    @O2 why are you offering free Samsung products when you take out a new contract then @SamsungUK won't accept the contract, emails and receipts as proof of purchase? Disgusting customer service from @SamsungUK

  • 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

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

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

  • 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?

  • davesouthphoto Dave South (@davesouthphoto) reported from Cardiff, Wales

    If I had a £1 for eveytime @O2 text me about my local mast being down. I wouldn't have to pay for my contract anymore. Wearing thin now guys.... 🙄

  • 92danielleyoung Dani 💋 (@92danielleyoung) reported from Alway, Wales

    What’s up with @O2 gone down before anyone can even get Peter Kay tickets 🤬🤬🤬🤬

  • 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

  • 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 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. 😖

O2 Issues Reports

Latest outage, problems and issue reports in social media:

  • scoobyhugh8 Hugh Toner (@scoobyhugh8) reported

    @o2 I’m getting sick of your crap service

  • andy3hilll Andy Hill (@andy3hilll) reported

    @O2 More shocking service around Northwich. Literally can’t get signal outside my house. Father in law is in hospital and can’t get in touch with my wife after having a heart attack this week and I’m currently waiting on out of hours GP for my son,just can’t rely on your service

  • ljf2003 Laura Jane (@ljf2003) reported

    @O2 why when we are trying to call you regarding a potential fraud does your 202 support line keep hanging up on us??? Three calls and all hung up. How is this helpful???? Could someone get in touch ASAP please.

  • HolliCarden Holli “gobby scientist” Carden (@HolliCarden) reported

    @virginmedia I’ve alreadycomplained about your appalling connection. It’s used up my mobile data from @O2 which I should not need to use at home as I pay for broadband. I’m yet to receive confirmation that I’ll be credited my monthly charges back for the inconvenience. Fix please

  • Aimesj Amy Jones (@Aimesj) reported

    @andy3hilll @O2 Yes I’m on O2 too and only 2 bar of signal inside.

  • scoobyhugh8 Hugh Toner (@scoobyhugh8) reported from Newcastle upon Tyne, England

    @O2 how can your service be so poor in a city centre.

  • Callum_loves_u Callum (@Callum_loves_u) reported

    @totallynotezzy @O2 O2 ****** sucks ***

  • steve5424 Stephen O'Donnell (@steve5424) reported from Glasgow, Scotland

    @apakula @O2 Perhaps I've experienced both sides of the situation as a customer and an employee dealing with such things. The network I worked for as much as there were processes to follow things were mostly left to us to decided the outcome as we were top teir complaints.

  • Jade01109327 Jade (@Jade01109327) reported

    @O2 I need help with o2 open discount please it’s not accepting my work email address

  • andyrennie Andy Rennie (@andyrennie) reported

    Stunning performance from @O2 in the Tq3 area this week…..NOT ! Apparently all fixed, but now blaming poor performance on the area being overused due to holiday makers….check my details….been with you for at least 8 ? Years !