O2

O2 Outage Report in Dublin, Leinster

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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 Dublin, Leinster

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

O2 Outage Chart in Dublin, Leinster 12/23/2025 12:15

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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 (32%)

    Internet (32%)

  3. Total Blackout (14%)

    Total Blackout (14%)

  4. E-mail (4%)

    E-mail (4%)

  5. Wi-fi (3%)

    Wi-fi (3%)

  6. TV (1%)

    TV (1%)

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 Dublin, Leinster

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

  • skbarrone Sarah Barron (@skbarrone) reported from Fingal County, Leinster

    @O2 Thanks. Problem started in London but same in Dublin. Everything works fine on Wi-Fi.

  • farellmichael Michael Farrell (@farellmichael) reported from Dublin City, Leinster

    @O2 hi. My friend’s UK mob stolen in Dublin. Need to cancel/freeze fone account. Help!!

  • Amarpatel128 Amar Patel (@Amarpatel128) reported from Dublin City, Leinster

    @O2 @pchavda Having to reply from a colleagues phone. Reported this morning at 9 o clock. Still service-less. Bet you’re still charging full rental though.

O2 Issues Reports

Latest outage, problems and issue reports in social media:

  • steph_ransome Steph Ransome (she/her) (@steph_ransome) reported

    @O2 I am aghast at the terrible customer service I’ve had from you this week, & am considering now switching networks after 20+ years. You cancel my order, tell me I did it, refuse to send a replacement and then refuse to finalise the cancellation so I can order a replacement??

  • steph_ransome Steph Ransome (she/her) (@steph_ransome) reported

    @O2 I try not to go full public Twitter meltdown usually but this is a joke and your customer service team are not able to tell me anything other than “wait” but wait until when? I’ve been waiting? For two days? Wait for what?

  • emmabee80 Emma Bracey (@emmabee80) reported

    @O2 I’ve got the code now but it’s not working as it should

  • Beacons_Walker Colin D. (@Beacons_Walker) reported

    He lives 300 miles away from me and I’m not looking forward to the different depts I will have to deal with in @virginmedia , the time on hold, then the same with @O2 just because they thought they could pull a fast one. Can’t wait to hear the recording as part of complaint.

  • rubel__r Rubel (@rubel__r) reported

    My Friday the 13th: Requested esim via @O2 app. Physical sim disconnected, and session timed out, before the esim profile was ready. Now I see the esim is ready, but can't get it as they are sending me 2FA to the number that is already disconnected. What a bad system design

  • bvanegghen 𝓑𝓸𝓫𝓫𝔂 𝓸𝓵𝓭 𝓑𝓸𝔂 🍺 🇬🇧 (@bvanegghen) reported

    @O2 Sort your signal out, it’s crap.

  • GaryElsey Gary Elsey 🏴󠁧󠁢󠁷󠁬󠁳󠁿 (@GaryElsey) reported

    @O2 why is the signal in SA4 6 postcode gone so bad over the last 3 months you can’t make calls anymore. You turned the power to the masts off? It’s ridiculous having to use WhatsApp to speak to people

  • NStupps Niki 🦼💕🇺🇦 🏴‍☠️ (@NStupps) reported

    @O2 I have had no mobile signal since this morning! I can’t receive or make calls, texts aren’t working and there’s been communication from O2 to say what’s going on. The O2 service checker says there’s a mast not working properly. I NEED my phone as a life line, I’m worried

  • barliemow Charlie Percy (@barliemow) reported

    @tescomobile No thanks, been down that road before. I will now only correspond by email. Again in the 4 days I’ve been with @O2 they’re customer service has out shone your so called customer service by a thousand times.

  • missleeny Miss Leeny (@missleeny) reported

    @O2 Not really - I've been told the bereavement team are the only ones who can help and they aren't available on a Saturday so I have to call back for a 4th time on Monday!