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 01/12/2025 22:20

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Most Reported Problems

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

  1. Phone (60%)

    Phone (60%)

  2. Internet (20%)

    Internet (20%)

  3. Total Blackout (14%)

    Total Blackout (14%)

  4. Wi-fi (4%)

    Wi-fi (4%)

  5. E-mail (2%)

    E-mail (2%)

  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: Cardiff, Pontypridd and Caerphilly.

Loading map, please wait...
City Problem Type Report Time
United KingdomCardiff Phone
United KingdomCardiff Total Blackout
United KingdomPontypridd Total Blackout
United KingdomCaerphilly E-mail
United KingdomTonypandy Phone
United KingdomPontypridd Phone

Community Discussion

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O2 Issues Reports Near Treharris, Wales

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

  • 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’

  • 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

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

    @O2 your live chat service is garbage. 15

  • 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.

  • 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

  • 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.

  • 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

  • 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!

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

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

  • 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.

  • 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

  • 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

  • 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.

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

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

  • 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

  • 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 🤯

  • 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

O2 Issues Reports

Latest outage, problems and issue reports in social media:

  • 77clinty Clinton®™ (@77clinty) reported

    @O2 Could you advise of your formal complaints procedure, please? Your 'customer service' is somewhat lacking

  • AncientThoth Dean Thomas Crawford (@AncientThoth) reported

    On Tuesday 7th March 2023 I took out a Sim only plan with the mobile network @o2. 14 day cooling off period. Changed my mind on Saturday 11th March 2022 . Phones @o2 and the advisor over the phone said no problem and he would disconnect the sim and close the account . Just…

  • AmbarHamid Ambar Hamid (@AmbarHamid) reported

    @O2 I could not access any internet at gatwick airport and super slow internet every where else even on 5G. This is almost like living in a 3rd world. My worst nightmare!

  • AncientThoth Dean Thomas Crawford (@AncientThoth) reported

    On Tuesday 7th March 2023 I took out a Sim only plan with the mobile network @o2. 14 day cooling off period. Changed my mind on Saturday 11th March 2022 . Phones @o2 and the advisor over the phone said no problem and he would disconnect the sim and close the account . Just…

  • RyanHunterRadio Ryan Hunter (@RyanHunterRadio) reported

    @O2 @virginmedia Hi! I have been experiencing issues with O2 Priority via using my Virgin Media account. I simply cannot log in to Priority at all, I have tried iOS, Android and on the website too. Can you please pass this onto the relevant team? Thank you.

  • Codamtten Christian (@Codamtten) reported

    Currently in Los Angeles - Unable to make calls to anyone and internet is down @O2 What do I do?

  • join4te Jay (@join4te) reported

    @O2 Day 135 of 365 on trying to get O2 to fix their phone customer service. 1) If you ring and ask for an e-sim for an Apple Watch then good luck with that. Staff seem very untrained. 2) Calls disconnect too much when speaking on 202. 3) The whole IVR system feels dated.

  • kathpay Kath Pay (@kathpay) reported

    @O2 @O2 Can you please get back to me on this urgent issue? I don't have an O2 account but I'm being chased for overdue money for an account that I never opened. I reported this over a month ago and still have not heard anything back from anyone in O2

  • ogden41 Chris Ogden (@ogden41) reported

    @O2 thirsty Thursday rewards are not working. Tills in the pub are not recognising the codes.

  • james_jevons James Jevons (@james_jevons) reported

    @O2 I've had no signal or data for the last week I'm my area! I know there's works going on buty phone is just a brick at the moment!