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 11/27/2025 14:40

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Most Reported Problems

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

  1. Phone (48%)

    Phone (48%)

  2. Internet (30%)

    Internet (30%)

  3. Total Blackout (16%)

    Total Blackout (16%)

  4. Wi-fi (3%)

    Wi-fi (3%)

  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: Porth and Abertillery.

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

  • 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

  • gwelfor57 Mark Elliott🏴󠁧󠁢󠁷󠁬󠁳󠁿🇪🇺 (@gwelfor57) reported from Cardiff, Wales

    @O2 am assisting my disabled brother. catch 22. No passport or driving licence unable to prove his identity. obtained a PAC. told est. £406.49 of termination charges! He wanted to reduce his monthly cost but O2 shop said no. Been customer for years. Help please.

  • 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

  • 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.

  • 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!

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

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

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

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

  • 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.

  • 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 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.

  • 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 😔

  • 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

  • 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.

  • 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

  • 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’

  • 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! 🤬

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

    @O2 your live chat service is garbage. 15

O2 Issues Reports

Latest outage, problems and issue reports in social media:

  • nmhrbrtsn Niamh (@nmhrbrtsn) reported

    @O2 I ordered a new phone and contract this afternoon and now on my current hand set I’ve had NO service for hours and I cannot ge through to any customer service reps? Will I get my service back? Need this phone to function tomorrow before new one arrives!

  • hanhansoth Hannah 💙 (@hanhansoth) reported

    @O2 I am currently unable to send or receive calls or texts. Because of this I am unable to make a My O2 account to request help from you. Can you message me please?

  • AnnabelKKelly Annabel Evans Kelly (@AnnabelKKelly) reported

    @O2 .@o2 you continue to charge me for Disney every month when a) I didn’t sign up for it and b) there is no obvious way to cancel it online. Please cancel and refund the money you are STEALING from me every month.

  • ALICE43 Alice 💙 (@ALICE43) reported

    @O2 new phone, transferred sim. 6 days later still no working phone, no return call from CS, abrupt rude lady on phone no help, O2 colleagues tried to help but not much knowledge. Big up Ahmed Clifton O2, only one to apologise & really try but still no phone. Appalling Service.

  • k_ravenhill Ashleigh K👑 (@k_ravenhill) reported

    @O2 not taking my 5th call to report fraud seriously … been waiting for a call back for 2 months now and I’m still getting threatening letters … sort your **** out!

  • yilank yilank™ (@yilank) reported

    @O2 (3) Unfortunately, we did not know that this was the case and it was our first service purchase from"O2". From now on, stop getting service, nd when you see the "O2" text,stay away from this company.We made a big mistake by getting service from"O2",so don't make the same mistake.

  • its_torchic Lily Mac (@its_torchic) reported

    @O2 how can you cancel a contract? 202 is permanently busy I’ve waited for hours over the past month. 5 times I’ve tried waiting for over an hour. There must be another option??

  • AlisonKMurray Alison 💙 🇪🇺 🕷️#Maskateer #CleanEnergy (@AlisonKMurray) reported

    @O2 I've been trying to get the sorted for months and today, I had two different help chats open on different platforms and had to log into a Thurs only to find out that there are no people to actually fix anything.

  • jessprescott jess evans (@jessprescott) reported

    @O2 I am having real trouble with getting my phone unlocked from O2 so I can use a different sim. I've spoken to Customer service several times as well as Samsung. No one will help! I need the phone unlocking ASAP. The PUK didn't work and now its locked.

  • yilank yilank™ (@yilank) reported

    @O2 note; We just called again O2 next and we were mocked again. they are telling us the sentences we made up to make fun of us. jesus, How bad company.