O2

O2 Outage Report in Treharris, Merthyr Tydfil County Borough, 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 Treharris, Wales

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

O2 Outage Chart in Treharris, Merthyr Tydfil County Borough, Wales 12/29/2025 05:50

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Most Reported Problems

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

  1. Phone (47%)

    Phone (47%)

  2. Internet (32%)

    Internet (32%)

  3. Total Blackout (14%)

    Total Blackout (14%)

  4. E-mail (4%)

    E-mail (4%)

  5. Wi-fi (3%)

    Wi-fi (3%)

  6. TV (1%)

    TV (1%)

Live Outage Map Near Treharris, Merthyr Tydfil County Borough, Wales

The most recent O2 outage reports came from the following cities: Bridgend and Porth.

Loading map, please wait...
City Problem Type Report Time
United KingdomBridgend Phone
United KingdomBridgend Phone
United KingdomPorth Phone
United KingdomAbertillery Phone
United KingdomCardiff Phone
United KingdomBlackwood Total Blackout

Community Discussion

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O2 Issues Reports Near Treharris, Wales

Latest outage, problems and issue reports in Treharris 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

  • fgethearies FGE ⚡️ (@fgethearies) reported from Cardiff, Wales

    Anyone else on @O2 ? My signal keeps cutting in and out 😩

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

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

  • 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!

  • 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! 🤬

  • 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

  • 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

  • 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’

  • TweetterRoss Ross Maisey (@TweetterRoss) reported from Church Village, Wales

    @O2 Struggling with no or little service at home at the moment and it’s becoming very frustrating. I checked the service checker and they comes back as ok. My phone says 1 bar but that doesn’t allow me to use the internet.

  • 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 😔

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

    @O2 your live chat service is garbage. 15

  • 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

  • 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

  • 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.

  • 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.

  • 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.

  • 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 🤯

  • 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

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

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

O2 Issues Reports

Latest outage, problems and issue reports in social media:

  • mamfymou |¥| /\ |¥| |= #Johnsonoutnow (@mamfymou) reported

    @LutzSchueler @O2 Still a terrible service though…shame.

  • MsMoneyPenny777 Penny Manchester (@MsMoneyPenny777) reported

    @O2. Why is there never any signal in or outside Boots? The Lady Diana Shopping Centre 15 Staveleigh Mall Ashton-under-Lyne OL6 7JL. Also there's no data signal in the ashton o2 store. 😡

  • ChisomoYM Chisomo Y Mwale (@ChisomoYM) reported

    @O2 what’s going on with your network, my signal has been extremely poor for 3 days straight now?

  • PaulaJHowarth Paula Howarth (@PaulaJHowarth) reported

    @o2 @virginmedia just cut me off because I said your customer service is so poor, and I didn’t even say it angrily even though I should be because you have lied!

  • speelingmstake Freya (@speelingmstake) reported

    @O2 so you never ported my number, im trying to sort this out with someone on the my02 app chat but I can barely raise a reply out of them and what they are saying is nonsense. This is a terrible start to a new contract.

  • lukescarif beth 🌟 (@lukescarif) reported

    @O2 a phone mast near my house has been not working since sunday night and i can’t get on to do my online learning for school because they need to text me a code when i log in. when is it getting fixed

  • HelsBels2525 Helen Bristow (@HelsBels2525) reported

    If I have another pushy call from @O2 and their operative trying to sell me upgrades as a "valued O2 customer", they might lose said valued customer. If I say, I want to go away to think about it, I don't have to tell you why I "don't want to save money today".

  • RMackaness 🌶B.S♥Make-A-Mess (@RMackaness) reported

    @O2 having issur with 'Volt' I'm a virgin media and customer of you but I'm not eligible? Both bills are in my name. I'm due an upgrade but it depends on if this actually works?

  • bizl i'm bizl (@bizl) reported

    @O2 "Sorry to bring bad news, your order is out of stock. But we're on the case. We're doing everything we can to deliver your order as soon as possible". Is this the best you PR person could write? How about ur ERP system? yea the one that confirmed stock at time of purchase?

  • FootballKel Kelly H (@FootballKel) reported

    @O2 is anyone actually going to deal with this problem??????