O2

O2 Outage Report in Tongwynlais, Cardiff, 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 Tongwynlais, Wales

The chart below shows the number of O2 reports we have received in the last 24 hours from users in Tongwynlais and surrounding areas. An outage is declared when the number of reports exceeds the baseline, represented by the red line.

O2 Outage Chart in Tongwynlais, Cardiff, Wales 08/19/2025 08:40

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Most Reported Problems

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

  1. Phone (52%)

    Phone (52%)

  2. Internet (25%)

    Internet (25%)

  3. Total Blackout (15%)

    Total Blackout (15%)

  4. E-mail (4%)

    E-mail (4%)

  5. Wi-fi (3%)

    Wi-fi (3%)

  6. TV (1%)

    TV (1%)

Live Outage Map Near Tongwynlais, Cardiff, Wales

The most recent O2 outage reports came from the following cities: Blackwood, Cardiff, Cwmbran Central and Newport.

Loading map, please wait...
City Problem Type Report Time
United KingdomBlackwood Total Blackout
United KingdomCardiff Phone
United KingdomNewport Internet
United KingdomCardiff Phone
United KingdomCardiff Phone
United KingdomCardiff Internet

Community Discussion

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O2 Issues Reports Near Tongwynlais, Wales

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

  • LisaEdwards78 LisaEdwards78 (@LisaEdwards78) reported from Barry, Wales

    @O2 Hi there I have had a highly Sophisticated national insurance scam call from a number registered to your network. There was an automated message purporting to be from the national crime agency. Please can you investigate this number 07850058296

  • BristolOli Bristol Oli (@BristolOli) reported from Cardiff, Wales

    @BS3Rob @O2 @WBA Been horrendous for weeks - Can’t complete a call without having to call back numerous times - BS3 probably the worst of them all but M4 corridor from Cardiff to Bristol is a close second

  • PattersonLela1 Lela Patterson (@PattersonLela1) reported from Barry, Wales

    @O2 I didn’t receive an alert and neither did my family. It’s a fantastic idea, though! Are all Network operators doing this? :)

  • ChrisEddy_7 Eddy 🏴󠁧󠁢󠁷󠁬󠁳󠁿 (@ChrisEddy_7) reported from Cardiff, Wales

    It’s come to something when you can get 4 bars of 4G signal walking between Benidorm and Albir in Spain but can’t even get 3 bars of 3G signal in Cwmbran South Wales 👀 @o2

  • BristolOli Bristol Oli (@BristolOli) reported from Cardiff, Wales

    @BS3Rob @O2 Glad it wasn’t just me - No signal anywhere near the ground

  • nopantsuk 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?

  • meribelman Peter Williams (@meribelman) reported from Penarth, Wales

    @virginmedia I would happily self serve online, via a browser or app, as you incessantly encourage me to do, but when the page says “oops something went wrong, we’re unable to change your package online”, its very frustrating. @O2 will help you soon!

  • themarkhawkins Mark Hawkins (@themarkhawkins) reported from Barry, Wales

    @viv_wilson @O2 I am in CF62 area, I haven't been able to get more than one bar for years, forget 3/4g Only keep it as I get a good signal in work.

  • gareth_thmpsn Gareth Thompson (@gareth_thmpsn) reported from Cardiff, Wales

    @O2 There’s delay then there’s rude. Been 92 working days or 128 days since I complained. @o2 are making it deliberately difficult to contact.

  • PattersonLela1 Lela Patterson (@PattersonLela1) reported from Barry, Wales

    Hi @O2. If you received a notification that a sound was played from my phone, please don’t worry. I was just testing out the Find My app on my iPhone, as I’ve never used it before, so I just wanted to check it out and see how it worked. Thank you and sorry. :)

  • cymboi MH 🏴󠁧󠁢󠁷󠁬󠁳󠁿🏳️‍🌈🇪🇺 #yescymru (@cymboi) reported from Newport, Wales

    @virginmedia @O2 Why is your Hotspot so poor? Never connects!

  • Daniel_Lyddon Daniel Lyddon (@Daniel_Lyddon) reported from Cardiff, Wales

    (1/3) Sad to say that @O2 are now trying to charge me for a service never used, when I cancelled a mis-sold contract within the 14-day cooling-off period. Almost two months later they're now saying they're going to charge me a late payment fee, plus the bill...

  • gareth_thmpsn Gareth Thompson (@gareth_thmpsn) reported from Cardiff, Wales

    @O2 guys is there a backlog in complaints? I responded to a complaint on the 06/10/20 no reply, 20/11/20 no reply. I’ve now sent a further email today and I’ve no faith in it being responded to. Original complaint was 04/09/20.

  • DennerSusan susan denner (@DennerSusan) reported from Cardiff, Wales

    @O2 Customer service shocking! No service on phone since 24th May, SIX calls made to your call centre to resolve issue - now being told to wait for

  • Garethbird85 gareth bird (@Garethbird85) reported from Newport, Wales

    @O2 can someone from customer service contact me please

  • Hayeley Hayley (@Hayeley) reported from Cwmbran Central, Wales

    @O2 is there an option to setup a direct debit without making a phone call? It used to be set up but for some reason didn't change when I used the Switch service to move banks and I'm fed up of being told I'm behind on a payment. Can I do it via the app? Thanks

  • flowersshanice S H A N I C E (@flowersshanice) reported from Cardiff, Wales

    @O2 @Gropinvillain In all these years I’ve been with @O2 I’ve never ever had nothing for bro g a loyal customer, maybe it’s time I cha he networks after my contract is finished!!

  • Daniel_Lyddon Daniel Lyddon (@Daniel_Lyddon) reported from Cardiff, Wales

    This weather properly has me over a barrel. Mistreatment by @O2 properly has me feeling down. My #CovidVaccine pain is bad. Some days the demons are just too much to battle...but today is not one of those days. Rest, relax, refocus. #MentalHealthMatters #BipolarDisorder

  • ImogensMind 👑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?

  • gareth_thmpsn Gareth Thompson (@gareth_thmpsn) reported from Cardiff, Wales

    What is the point of complaining to @o2? Complaint sent 06/09 multiple times chased up formally 20/11 no reply now 06/0/21. Told someone looking at as a priority still nothing @MarkEvansO2

O2 Issues Reports

Latest outage, problems and issue reports in social media:

  • Hughsie28 Dave (@Hughsie28) reported

    @Dave7438501904 @wrexham @O2 I find on the industrial estate and round town and north part that EE is great, been with O2 before but I think their mast was on the police tower before it went down

  • Dave7438501904 Dave74 (@Dave7438501904) reported

    Best mobile phone network to go with in @wrexham please? @O2 signal been non existent for the last 6 months! Out of contract now so looking to change.

  • Herding_Cats14 Michael (@Herding_Cats14) reported

    @O2 Hello O2. I recently upgraded my contract with an iPhone 13 Pro Max, which came with a new sim card. I have noticed that since installing the new sim card, my signal strength has dropped from 4 to 2 bars. I live very close to a cell tower... 1/2

  • KerryJo98846780 Kerry (@KerryJo98846780) reported

    @O2 trying to use the Disney + offer on Priority but wont let me sign in 🙈 but I’m already on the app.

  • KateRenton Mrs R (@KateRenton) reported

    @leonagraham @easyJet Wouldn’t mind but my @O2 phone network won’t work either. Rather a disappointment really.

  • Katfishpool Kate Fishpool (@Katfishpool) reported

    @O2 I’ve bought a ticket for HIIT WITH Joe at the o2, but haven’t received an email or confirmation… not sure who to contact. Please help!

  • metronome_6 M6 (@metronome_6) reported

    @O2 can I get help on this

  • bmay Brendan May 🇺🇦 (@bmay) reported

    Given up. Absolutely useless service, @O2

  • AllThingsMaths Maryse #Antiracist (@AllThingsMaths) reported

    @audproctor77 @EE @O2 3½ more days? That's awful.

  • CharlesRoskilly Charles Roskilly (@CharlesRoskilly) reported

    @O2 Hi o2, As I said in my previous tweet to you, yes, I have tried restarting my phone. Still no signal this morning. What shall I do?