O2

O2 Outage Report in Belfast, Northern Ireland

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The latest reports from users having issues in Belfast come from postal codes BT9.

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 Belfast, Northern Ireland

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

O2 Outage Chart in Belfast, Northern Ireland 11/08/2025 18:10

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Most Reported Problems

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

  1. Phone (46%)

    Phone (46%)

  2. Internet (30%)

    Internet (30%)

  3. Total Blackout (16%)

    Total Blackout (16%)

  4. Wi-fi (4%)

    Wi-fi (4%)

  5. E-mail (3%)

    E-mail (3%)

  6. TV (1%)

    TV (1%)

Live Outage Map Near Belfast, Northern Ireland

The most recent O2 outage reports came from the following cities: Carrickfergus, Belfast, Lisburn and Antrim.

Loading map, please wait...
City Problem Type Report Time
United KingdomCarrickfergus Phone
United KingdomBelfast Phone
United KingdomBelfast Internet
United KingdomLisburn Phone
United KingdomCarrickfergus Total Blackout
United KingdomBelfast 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 Belfast, Northern Ireland

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

  • Watsonmydear Christine #StaySafe #SaveLives Watson 💙 (@Watsonmydear) reported from Belfast, Northern Ireland

    💡 check your Tesco clubcard account - vouchers for restaurants, Denby dining sets & more - I’ve enjoyed 3 course meals for 2 for like £1.13! 💡 check your topcashback account could be £££ for a M&S voucher for example 💡 If @O2 customer make sure you download free priority app

  • paulmcerlane www.paulmcerlane.net (@paulmcerlane) reported from Crumlin, Northern Ireland

    @O2 are there network issues in N.Ireland??

  • timjacko09 timjacko09 (@timjacko09) reported from Ballygowan, Northern Ireland

    @O2 I’m having problems sorting out the “extra” that came with my recent upgrade. Today is day 28, I need to choose today. Please help asap!

  • DAVIDBUZZ2904 DAVIDBUZZ2904 (@DAVIDBUZZ2904) reported from Lisburn, Northern Ireland

    @O2 Hi my gran is an elderly customer of 02 and keeps getting calls from 02 and has said many times not to ring her again and you keep doing so I want an explanation !

  • roryg2009 Rory Gallagher (@roryg2009) reported from Belfast, Northern Ireland

    @o2 I resorted to emailing the CEO today @LutzSchueler because no one will help me with refunding me for an order I cancelled and didn't receive...

  • PcConlon P Conlon PC (@PcConlon) reported from Belfast, Northern Ireland

    @DPDgroup_news @O2 your service is a joke

  • DAVIDBUZZ2904 DAVIDBUZZ2904 (@DAVIDBUZZ2904) reported from Lisburn, Northern Ireland

    @O2 Hi I’ve switched my gran switched from pay as you go to pay monthly and her phone number still hasn’t switched can someone help

  • liznangel3 Liz Cullinane (@liznangel3) reported from Balmoral, Northern Ireland

    @EmmandJDeSouza Burnfoot, Donegal house in Derry UK Workshop Donegal, Irl @O2 flicking from roaming to home constantly, useless turning it off roaming I'd never get any work done👿

  • TheRealJackieJ Jackie Johnston (@TheRealJackieJ) reported from Belfast, Northern Ireland

    @O2 Hi. Can someone help me please? Tried ringing but losing the will with the wait times. Basically placed 3 orders yesterday. 2 have been despatched but 1 hasnt - ms-221212349. Can someone check whats happening?

  • RunRosyRyanRun Bacon From Heaven (@RunRosyRyanRun) reported from Belfast, Northern Ireland

    @O2 I won an instant prize from Greggs but no voucher appeared, can you help?

  • TheRealJackieJ Jackie Johnston (@TheRealJackieJ) reported from Castlereagh, Northern Ireland

    @O2 Thanks. How do we unsubscribe from this ****? We pay for 5 contracts and do not wish to receive these messages particularly on children’s phones.

  • JeremyAdamsNI Jeremy Adams (@JeremyAdamsNI) reported from Belfast, Northern Ireland

    Kudos to @O2 for customer service today. Recommend going via app ‘Start a Conversation’ section.

  • padraigmc1988 padraig mc crory (@padraigmc1988) reported from Belfast, Northern Ireland

    Is it just me or has @O2 phone signal went to the absolute dogs?

  • Watsonmydear Christine #StaySafe #SaveLives Watson 💙 (@Watsonmydear) reported from Belfast, Northern Ireland

    This Christmas, @O2 is donating data to those who need it. For every tweet using #O2DataPledge this Giving Tuesday, they'll donate even more data to the National Databank. Tap below to tweet your support 👇

  • DAVIDBUZZ2904 DAVIDBUZZ2904 (@DAVIDBUZZ2904) reported from Lisburn, Northern Ireland

    @O2 @druwakely I’ve never got an @O2 treat they charged an elderly customer my gran over £200 on pay as you go for a month

  • internetsense Philip I Wilson (@internetsense) reported from Belfast, Northern Ireland

    @LauraJ2803 @SarahSherry1 @O2 This is criminal activity I was charged £2 per day by #Three Which is bad enough Truth is like petrol/oil/electric/tv you can't change as they're all at it!

  • GeorgeCowan Britishgamerni 🇬🇧🏳️‍🌈 (@GeorgeCowan) reported from Whitehead, Northern Ireland

    @Jewkneeor @O2 @VodafoneUK Honestly terrible service here I think it’ll be EE or 3 from the look of it when I go to change provider at the end of my contract

  • GeorgeCowan Britishgamerni 🇬🇧🏳️‍🌈 (@GeorgeCowan) reported from Newtownards, Northern Ireland

    @O2 Yeah that doesn’t give any way to report an issue or anything not helpful

  • GarethAJMiller Gareth (@GarethAJMiller) reported from Belfast, Northern Ireland

    @O2 how can I get in touch about my last bill? Recently left o2 so not letting me start a live chat as I can’t login

  • ScottD_DJMS Scott Dixon (@ScottD_DJMS) reported from Belfast, Northern Ireland

    @O2 @virginmedia still unable to sign in to the Priority app using virgin. Any advice or update please?

O2 Issues Reports

Latest outage, problems and issue reports in social media:

  • jaerobinson2702 Jae Robinson #CeasefireInGazaNow (@jaerobinson2702) reported

    @O2 Customer services are now infering that I am stupid to understand how watching RPDR used my data. Defrauded me and tried to push me into a annual contract. I am disabled and need my service been a customer over 12 years. Nice way to treat me. #Fraud #TradingStandards

  • GemSwanz Gem Swanson© (@GemSwanz) reported

    @O2 Why have it in there if you can’t use it? Why can you communicate to messages via insta and not here? Joining forces with VM appears to have been a poor move. Crap signal and palmed off when trying to contact. Sounds exactly like VM. Very annoying.

  • KevinBeckley7 Kevin Beckley (@KevinBeckley7) reported

    @O2 someone please help me I am struggling with your call centre, I cannot set my02 on via phone, PC or the app. Every time a verification is sent, it is sent to a number which hasn't been used in years. No one seems to be able to remove it from my account at all. HELP!!

  • haylesinnvrlnd Hayley (@haylesinnvrlnd) reported

    What the hell has happened to @O2 ?! Trying to upgrade for over a week, having spoken to 7 different people, I’ve not spoken to anyone who knows what the hell they’re doing! It used to be so simple! After over 20 years with them. Time to change! Terrible customer care.

  • chrisday2016 Chris Day (@chrisday2016) reported

    @O2 why is it so hard to speak to a human being instead of a machine? You guys are restricting my service due to an unplayed bill yet all I kept getting when calling is a machine!! Can a human please help.

  • ToddyBevis Todd Bevis 💀 (@ToddyBevis) reported

    @O2 why did I never get my discount for galaxy buds when I pre ordered my z flip 7?

  • RussPurdie Russ Purdie (@RussPurdie) reported

    @O2 how do I get a phone purchased from O2 unlocked ?? I have tried several times but still locked on the O2 network despite being all paid for 3 years ago - do I need to go to @TradeStandards ??

  • Benn_Sanderson Benn Sanderson (@Benn_Sanderson) reported

    @O2 All I can get is the AI and it doesn’t help much

  • billysmith45 billy smith (@billysmith45) reported

    @O2 why can you still not enable my @Apple watch on voice and data?? This is nearly two months now 😡😡 tech support no support 😩😩

  • GemSwanz Gem Swanson© (@GemSwanz) reported

    Why has my O2 signal been so poor for the last couple of months? It’s killing me? Been with you for ages and never had issues but I am struggling to get a signal when it’s showing 5G? @O2