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 01/27/2026 19:40

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Most Reported Problems

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

  1. Phone (49%)

    Phone (49%)

  2. Internet (31%)

    Internet (31%)

  3. Total Blackout (13%)

    Total Blackout (13%)

  4. E-mail (4%)

    E-mail (4%)

  5. Wi-fi (3%)

    Wi-fi (3%)

  6. TV (%)

    TV (%)

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:

  • 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!!

  • Jordan_D Jordan Downey (@Jordan_D) reported from Dublin City, Leinster

    @BradyHaran @O2 One time I disabled Airplane mode while flying over Canada, I somehow managed to get some cell service and realized that when I received a text message saying my bill was reaching 80€

  • sarahbennetto Sarah Bennetto: a comedian of sorts. (@sarahbennetto) reported from Fingal County, Leinster

    @O2 hi guys. My phone stopped working in Europe (since I added an Aussie E-sim). No one in your O2 UK shops can help. I even deleted the E-sim. But still: no roaming. O2 said I should wait until I’m in Europe for work again and call you (I can’t; that’s the point!). Help me, pls?

  • 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.

  • 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:

  • Jessica_Bragan jessB (@Jessica_Bragan) reported

    Phone is on emergency calls only for the past 2 days, followed all points to try and nothing has worked, also no known service down with @TheO2 in my area of NG22 9SG - HELP?! @O2

  • _ChadTv Chad The Hypebeast (@_ChadTv) reported

    @O2 Fam my phone number is not working

  • JimR123 Jim (@JimR123) reported

    @O2 Why when I UPGRADE my phone do you give me less options for data plans than if I was a NEW customer?

  • Nicolanoodle Nicola Fish 💙 (@Nicolanoodle) reported

    @O2 I’m abroad and my data roaming isn’t working. And it’s a 30 minute wait on the phone. Help

  • kristinag95x Kristina (@kristinag95x) reported

    @O2 hi I just upgraded my phone yesterday through live chat. I was told I would have to text my unidays code when I received my phone to 61202 but it’s saying it’s an invalid code. Also I swapped over sims just there and now neither my new phone or previous phone have signal?

  • LukeBradford Luke Bradford (@LukeBradford) reported

    @O2 @Apple Managed to get back to the basket, adblock appears to have been an issue getting the page to fully load but I've managed to complete everything till the agreement page when something appears to have gone wrong. Will have to try later tonight now.

  • KenPDale76 Ken (@KenPDale76) reported

    @O2 4.5 hours on the phone, still not answered. We want to cancel our direct debit as out of contract and moving provider. Please assist?

  • JJbothwell JJ Bothwell (@JJbothwell) reported

    @O2 when will the mast be back up and running for BN41 area? Very weak signal since Monday. Photos/videos on socials don’t load and only 1 bar of signal always. I’m rinsing my data

  • andyrennie Andy Rennie (@andyrennie) reported

    .@o2 your service is crap in TQ3 AGAIN

  • meljodmor11 Mm♡ (@meljodmor11) reported

    @O2 is there a problem with your service? My signal is weak … 2 bars and everything is slow… constantly happening nowadays