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 11/29/2025 01:30

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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 (30%)

    Internet (30%)

  3. Total Blackout (17%)

    Total Blackout (17%)

  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: Bridgend, 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.

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 Treharris, Wales

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

  • 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.

  • 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

  • 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

    @jolilford @O2 Your kidding me!!! I have contacted customer services 3 or 4 times. Shocking service

  • 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.

  • 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

  • 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.

  • 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.

  • 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

  • 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 🤯

  • 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! 🤬

  • 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

  • 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

  • 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!

  • 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

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

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

  • 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.

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

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

O2 Issues Reports

Latest outage, problems and issue reports in social media:

  • hhheatherrrc hev (@hhheatherrrc) reported

    so @SkyUK has been down since 7:45 and @O2 data hasn't worked all day, what a laugh its been. NOT

  • 2E0MKH Michael Heaton-Bentley (@2E0MKH) reported

    @BTPLancs @O2 Maybe you could include this in your free message allowance instead of classing it as a premium service!

  • DaveMJo1 Dave MJ (@DaveMJo1) reported

    @O2 o2 are by far the single most abusive company I have ever had the displeasure of dealing with. We've had over a month of threats/attempts to take thousands of pounds for a phone they never supplied and admitted they didn't supply. Please, save yourselves the hassle.

  • scoey9000 Paul Scowcroft (@scoey9000) reported

    @O2 fed up with your recycle department. Packaging didn’t turn up for 8-9 days after recycle process confirmed. In the meantime they emailed me a postage label to use - I did so - however now I realise this label is untrackable - phone not arrived even though it’s 24r service

  • Chef1Wayner Chef One (@Chef1Wayner) reported

    Such an amazing day at Silverstone soured only by the ineptitude of @O2 @ee are running 5G at almost 300mbps and @VodafoneUK brought extra mobile masts to cope with the load. O2 have masts down and are working their hardest to resolve. Absolute rubbish.

  • danieldev39 Daniel Devereux (@danieldev39) reported

    @O2 disgusting service, 7months without proper service due to mast fault and no one willing to help l!

  • terrihyphenann Terri-Ann Brumby (@terrihyphenann) reported

    @O2 had two texts one saying my tariff ending but I need do nothing if I want to stay on it and the another saying you cannot process my bill and are going to disable?my account on the 19 th . Logged in my accounts can find nothing that pertains to any of this . Pls Help 🙏🐝

  • GrittyBear Gritty Gaza 🇯🇲 🇹🇹 (@GrittyBear) reported

    @O2 the connection around my area for my phone has got sooooo bad! Can someone look into this please

  • MellonieYasmina MellonieYasmina (@MellonieYasmina) reported

    Very disappointed in @O2 !! and just hanging up on customer well done. Someone needs more training!!

  • Excel_Trades ExcelTradesOfficial (@Excel_Trades) reported

    @O2 Thank you for your update, correct as I mentioned before O2 side is not updated, it would be good if O2 could query the royal mail database weekly to keep customers happy, I'm surprised customer service couldn't give that info. So do we know what date this happens so I know?