O2

O2 Outage Report in Tongwynlais, 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 Tongwynlais, Wales

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

O2 Outage Chart in Tongwynlais, Cardiff, Wales 03/23/2026 16:55

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Most Reported Problems

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

  1. Phone (45%)

    Phone (45%)

  2. Internet (31%)

    Internet (31%)

  3. Total Blackout (18%)

    Total Blackout (18%)

  4. Wi-fi (3%)

    Wi-fi (3%)

  5. E-mail (2%)

    E-mail (2%)

  6. TV (%)

    TV (%)

Live Outage Map Near Tongwynlais, Cardiff, Wales

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

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

Community Discussion

Tips? Frustrations? Share them here. Useful comments include a description of the problem, city and postal code.

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O2 Issues Reports Near Tongwynlais, Wales

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

  • bethanjane22 Beth (@bethanjane22) reported from Cardiff, Wales

    When I renew, @virginmedia offer free AirPods with some plans and @O2 do the same! So much for customer loyalty, they just want more and more money! 🤬

  • jamcole88 🇬🇧Jamie🏴󠁧󠁢󠁷󠁬󠁳󠁿 (@jamcole88) reported from Panteg, Wales

    Currently with @EE with no/very low signal at home address! Who wants to send me sim cards so I can see what network to change to! @O2 @o2 @ThreeUKSupport @VodafoneUK @ThreeUK

  • ieuanbeal15 Ieuan-Rhys Beal (@ieuanbeal15) reported from Cardiff, Wales

    @O2 your live chat service is garbage. 15

  • Waldron_Diana Diana Waldron (@Waldron_Diana) reported from Cardiff, Wales

    @O2 can u please help. I have been trying to pay my final bill with you for ages. It’s only about £20,I don’t need harrazing letters&emails to prompt me to pay...I just need u to let me pay. I have called&been online to make payment, but you don’t seem to want to take my payment

  • paigebuckingham Paige🧚🏻‍♀️🌸 (@paigebuckingham) reported from Cardiff, Wales

    Anyone else on @O2 and get literally no signal? I’ve had my baby’s doctor and hospital ring me many occasions and can’t get through to me!

  • staceyjhubbard Stacey J Hubbard 🐧 (@staceyjhubbard) reported from Cardiff, Wales

    There is always some kind of problem with my @O2 order. Its even more frustrating seeing on here people have just walked into the store and been able to collect the phone without the relevant email saying its ready to collect. How do they know they are distributing the right

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

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

  • AdamLee2011 Adam Lee (@AdamLee2011) reported from Newport, Wales

    @O2 Already with o2 for my mobile and they are brilliant. This was for MiFi, someone recommended three but the signal is terrible. Waste of money.

  • 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 🤯

  • jamcole88 🇬🇧Jamie🏴󠁧󠁢󠁷󠁬󠁳󠁿 (@jamcole88) reported from Pontnewydd, Wales

    @SkyHelpTeam @O2 why is the network signal so poor/non existant in Cwmbran NP44

  • 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.

  • 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.

  • staceyjhubbard Stacey J Hubbard 🐧 (@staceyjhubbard) reported from Cardiff, Wales

    Also when I highlighted my issues over the phone and through the Webchat @O2 do not seem very concerned or understanding 😔

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

    Hi @O2 I’m in desperate need for someone to active my new sim (had an upgrade) as I’m unable to text or call out viseversa. My o2 isn’t solving the issue either.

  • 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’

  • BigDogWrestler Big Dog (@BigDogWrestler) reported from Newport, Wales

    @Annabanana8008 @virginmedia I feel for you, if @O2 and @virginmedia do merge, I'm leaving at the earliest opportunity. @virginmedia leave me a little cold and with no confidence as a customer.

  • BCFCOLIVERDOG Oliver City Dog (@BCFCOLIVERDOG) reported from Cardiff, Wales

    @JoeSims10 @O2 Look forward to no signal on the Portway Joe 🙃

  • peterkin1010 Peter MacCabe (@peterkin1010) reported from Barry, Wales

    @pinecone95 @O2 It's coming along slowly but surely. No sign in Barry or Cardiff yet.

  • BigDogWrestler Big Dog (@BigDogWrestler) reported from Newport, Wales

    @Annabanana8008 @virginmedia @O2 Good luck to you and don't take any sh*t, you should be fully compensated for the absolute inconvenience. We had a little problem with our provider and they where excellent, understood the issue and before we asked they compensated us.

  • JdBowns91 Jade Bowns (@JdBowns91) reported from Barry, Wales

    @O2 on the website it says to contact your customer services to change my name and other issues I want to discuss yet the only way I can get through to someone is to say I’ve had fraud occur! All I want to do is speak to someone why is it so hard. Chat is also unavailable

O2 Issues Reports

Latest outage, problems and issue reports in social media:

  • Williams_Sharon Sharon Williams (@Williams_Sharon) reported

    @MrAHarrisonCS @O2 This is dreadful customer service @O2. It is a completely unreasonable action in these circumstances, when you had been informed of travel plans.

  • vickylianne Victoria Corderoy (@vickylianne) reported

    @O2 I understand that upgrades to the network etc need to take place from time to time but we have had no service for 3 days now which is unacceptable. Why can’t there be a back up plan out in place like the use of another network provider ?

  • LailRabinder Rabinder Lail (@LailRabinder) reported

    @O2 I have sent via private message but happy to share experience with current or perspective customers. As you are good at rising prices each year but the customer service declines further where left hand doesn't know what right hand is doing. Happy to explain further on here

  • begoneheathen 🔥🏴󠁧󠁢󠁷󠁬󠁳󠁿 (@begoneheathen) reported

    @O2 Why that makes no sense? Ran out of data before the new tariff and that's never happened before.

  • daveparsonsv300 Dave (@daveparsonsv300) reported

    @O2 still not working!!!!

  • Bill66842989 Bill (@Bill66842989) reported

    @O2 and @virginmedia - you have offered me @disneyplus as part of my new package - which would be awesome but your #Virgin360 box doesn’t have the Disney App, and nor can I download it #DisneyPlus #Fail

  • nickledger76 Nick Ledger (@nickledger76) reported

    @virginmedia @O2 How about giving Volt customers free O2 data to run a mobile hotspot when Virgin broadband has gone down at home?

  • MissLauderEng Miss Lauder (@MissLauderEng) reported

    @O2 someone has fraudulently upgraded to two iphones using my account. Currently on phone to customer services but not helpful.

  • LailRabinder Rabinder Lail (@LailRabinder) reported

    @O2 what a joke of a customer services I've been lied to on numerous occasions and then still not got my replacement phone delivered to me! People be aware of the dodgy customer service you receive where the goal posts are changed!

  • zanda01 Alex Hibbert (@zanda01) reported

    @O2 I’ve tried the Thursday Thursdays code the last two weeks and it doesn’t work at all? Any help at all?