O2 outages and service status in Mountain Ash, Wales
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Full Outage Map
- O2 generated 0 outage signals in the last 24 hours around Mountain Ash, including 0 direct reports.
- The most common problems reported in this area mention Total Blackout.
- Total Blackout (100%)
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 Mountain Ash, Wales
The chart below shows the number of O2 reports we have received in the last 24 hours from users in Mountain Ash, Wales and surrounding areas. An outage is declared when the number of reports exceeds the baseline, represented by the red line.
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Live Outage Map Near Mountain Ash, Wales
The most recent O2 outage reports came from the following cities: New Tredegar, and Treharris.
| City | Problem Type | Report Time |
|---|---|---|
 New Tredegar
|
Total Blackout | 23 days ago |
|
Treharris
|
Phone | 2 months ago |
Community Discussion
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O2 Issues Reports Near Mountain Ash, Wales
Latest outage, problems and issue reports in Mountain Ash and nearby locations:
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Stuart Maclean (@stuomac88) reported from Abertillery, Wales@O2 supposed to have had a bill credit applied to my account due to mast issues. Can you check this for me as still not showing on my o2?
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Paul Williams Events (@pwilliamsevents) reported from Tongwynlais, WalesTotally 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
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Shaunalj (@Shaunalj93) reported from Ferndale, WalesI need some help @O2. I was told I can get o2 open as I have a @bluelightcard but when I’m trying to register it online it is not accepting my device.
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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’
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master.vapour (@MartynWilliams6) reported from Maesteg, Wales@tescomobile I do enjoy your network, even being part of the @O2 family
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Garry Dauncey (@daunce4thstreet) reported from Pontypridd, WalesNever 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.
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KD Hansford (@kdhanz) reported from Mountain Ash, Wales@EE I'm fed up of your network in aberdare. It hasn't worked tidy for months and I have two contracts with you. Please sort it out or I'm leaving to @VodafoneUK or @O2
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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.
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Nick Thorogood (@nopantsuk) reported from Llanharan, Wales@O2 my number should be ported to you today that I requested yesterday morning. I’ve had no confirmation texts or emails though and number still on old network. Any ideas?
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👑Immy👑 (@ImogensMind) reported from Blackwood, Wales@O2 my friends phone network has completely gone down all day, they can’t call anyone including yourselves. Please suggest what they should do?
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Paul Williams Events (@pwilliamsevents) reported from Tongwynlais, Wales@jolilford @O2 Your kidding me!!! I have contacted customer services 3 or 4 times. Shocking service
O2 Issues Reports
Latest outage, problems and issue reports in social media:
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Dave (@_DaveCross_) reportedDear @O2 - your CS chat function is as hopeless as my 4/5G reception…And having your rep close it without resolving my issue is a tad suboptimal. Coverage for Leics/Northants is abysmal Even without a crystal ball, I can see @EE in my future
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Richard Giles (@Gilly2028) reported@O2 I’ve recently moved from Sky Mobile to O2, I can’t believe O2 actually charge you for sending MMS messages in 2026, 87p a message. Bear in mind Sky piggy back off of O2, I’ve never been charged for MMS.😳 😮 Have I made a big mistake moving to O2?
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The Smooth Booth 🏳️🌈👓❤️ (@TheSmoothBooth) reported@JaneEyreAtHeart @O2 Had the same issue? Received a text saying 80% of data used. Same message a week later and 36 hours after that no data. O2 are denying there’s any issue but I know of other people who are losing data overnight when it’s not been used.
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Josephine (Josie) Tapper (@TapperJosephine) reported@O2 almost a month without data inside my home due to a mast issue. It’s been down at least 6 months out of the last 12. Your coverage is also non-existent in Exeter. It’s 2026 for goodness sake.
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Lauren. (@LaurenDenny2) reported@O2 my phone number was disconnected on Thursday and was reassured numerous times it would be reconnected within 24 hours. 3 days later and it still isn’t reconnected. I’ve been advised to call 202. How when the network is still disconnected?! Very disappointing service!!!
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wendy devyea 🌸 (@Wendy_jDarling) reported@O2 please see DMs as this is urgent .a customer service agent has accidently disabled my sim
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Teresa Bourne (@TeresaBourne) reported@O2 for months now will have been dealing with VMO2 tech support as I am unable to access my o2 account. Security code gets sent to some unknown phone no which is not mine then it asks me to enter account recovery words which I don't have.
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✞ ⛥ ElectroFox ⛥ ✞ (@TheElectroFox) reported@Joff_L @O2 They also see fit to charge existing customers upfront costs when trying to upgrade and dont budge on any of it, forcing you to customise your tariff and making it down to £10 as the lowest amount, which then raises the overall cost and then has you dropping down a tariff later.
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Lucia (@LadyLucia05) reported@O2 tried to sort out a new phone S25FE at me local store, CS was useless tried to make a complaint got nowhere, walked into @SamsungUK liverpool one, spoke to Matthew walked out with S26, time to change my mobile provider aswell I think
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Nadia (@NarniaB6) reported@O2 After being with you for years I think the time has come to move network. I’m not one for me ripped off and made to look a mug with your prices 🤬