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 02/17/2026 01:05

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Most Reported Problems

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

  1. Phone (53%)

    Phone (53%)

  2. Internet (30%)

    Internet (30%)

  3. Total Blackout (11%)

    Total Blackout (11%)

  4. E-mail (4%)

    E-mail (4%)

  5. Wi-fi (3%)

    Wi-fi (3%)

  6. TV (%)

    TV (%)

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

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

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

  • 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

  • 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

  • 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! 🤬

  • 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.

  • 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

  • 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’

  • 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.

  • 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.

  • 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

  • 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

  • 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 🤯

  • 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.

  • 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!

  • 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

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

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

  • 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

O2 Issues Reports

Latest outage, problems and issue reports in social media:

  • TheMurphy2806 Jon Murphy #2020KWAhousechamps #stayinghomeagain (@TheMurphy2806) reported

    hey @O2 im thinging of upgrading to a phone and found it cheaper on a 3rd party website than your page. i believe it would be a new contract. I'm wondering if it is possible to cancel my old contract and take my number to the new one with you guys

  • JoMcGrath8 JoMcJo (@JoMcGrath8) reported

    @O2 Your call handler refused to put me through to that team because I didn’t know the password on the account even though I could answer all the other questions. She was rude and unhelpful despite me explaining that this had been discussed with that team already

  • linziferd Lynsey D-C (@linziferd) reported

    Ah @O2 the inevitable delivery delay of the new Samsung. For once it would be nice to have the info sooner than the day before expected delivery. It can't be brand new information for you today that you've got shipping problems? #SamsungS21

  • PhilBurkett Phil Burkett (@PhilBurkett) reported

    @O2 She did that. You suggested popping in to a local O2 discuss. (HELLO! WE'RE IN LOCKDOWN AND COULD BE MONTHS TIME WHILE STILL THIEVING FROM HER!!?) What are running here some old fairground side show where the customer can never win?

  • jtowePE JT PE (@jtowePE) reported

    Seriously @VodafoneUK 4th week of problems, now sent a formal complaint, been lied to repeatedly and today is the last straw. Strongly advise anyone considering leaving @O2 @TalkTalkGroup from an apparent better deal, they are miles better than this awful company! Don’t do it!

  • tbarker863 Tim Barker (@tbarker863) reported from Louth, England

    @O2 why do your operators but the phone down when I'm on hold🤬 if you did one more time I will end my contract

  • Jessica13917471 Jessica Humphries (@Jessica13917471) reported

    @Ofcom hi I'm experiencing terrible customer service from @O2. Not had phone signal for 2 months and just keep getting fobbed off with a mask being down. Yet at points they have even said the mask is fine when I'm having issues

  • itsstaciburns Staci Burns (@itsstaciburns) reported

    @O2 Been trying to reach someone the online chat is never working or I don’t get a response on the app

  • gsxturbor Kevin Bayliss (@gsxturbor) reported

    @Gag_N_Bone_Man @O2 Same 512gb 5th Feb why is no other provider having problems delivering on time or even early in some cases

  • scottishgirl201 G🏴󠁧󠁢󠁳󠁣󠁴󠁿🏴󠁧󠁢󠁳󠁣󠁴󠁿 (@scottishgirl201) reported

    @TheRedSoph @O2 @EE We were with o2 years ago but when moved house signal was non existanr so got ee been with them for 10 years plus no bother x