O2

O2 Outage Report in Belfast, Northern Ireland

Some problems detected

Users are reporting problems related to: phone, internet and total blackout.

The latest reports from users having issues in Belfast come from postal codes BT5, BT2, BT6 and BT16.

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 10/19/2025 12:05

October 19: Problems at O2

O2 is having issues since 12:20 PM GMT. Are you also affected? Leave a message in the comments section!

Most Reported Problems

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

  1. Phone (53%)

    Phone (53%)

  2. Internet (27%)

    Internet (27%)

  3. Total Blackout (13%)

    Total Blackout (13%)

  4. Wi-fi (3%)

    Wi-fi (3%)

  5. E-mail (2%)

    E-mail (2%)

  6. TV (1%)

    TV (1%)

Live Outage Map Near Belfast, Northern Ireland

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

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

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

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

  • 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...

  • 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?

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

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

  • 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!

  • 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👿

  • 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

  • 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?

  • 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

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

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

  • 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 👇

  • 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 Newtownards, Northern Ireland

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

  • 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

  • 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

  • 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 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 !

  • 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

  • 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.

O2 Issues Reports

Latest outage, problems and issue reports in social media:

  • CurvyBabyGirl12 Letitia C (@CurvyBabyGirl12) reported

    @O2 NOT HAPPY called today to get code for new watch & tariff. Now I'm off the network. No calls & text in or out. Sim not requested. At no point was I told this is going to happen. Tried to go through security but cant receive text as I'm not on the network duhh system flawed!!!

  • LewisBate Lewis Bate (@LewisBate) reported

    @O2 @TheO2 i’ve received disgusting service from o2 over the past few months regarding a bereavement issue. I’ve made multiple complaints and was told on Wednesday that I would get a call back from a manager within 48 hours. No surprise that I still haven’t had one 3 days later.

  • PobertR pobertr.ethanol (@PobertR) reported

    @O2 Is your network down, because I'm having issues on 3, 4 and 5G

  • precyshun Mason 🏳️‍⚧️ (@precyshun) reported

    @O2 please can you sort out the terrible signal I go across the country no matter where I am please? Instead of sending me messages saying you’re doing upgrades all the time….the upgrades don’t appear to be helping so please sort it out 👍

  • cakeyriddell Katie Riddell (@cakeyriddell) reported

    @O2 hey! Why won’t you match a deal found online with you as the same network? Seems weird! Customer service being really unhelpful and would prefer not to leave for another network (if possible)

  • matthewdevine7 matthew devine (@matthewdevine7) reported

    @O2 Can you sort your **** mobile internet and signal connection please, It’s been awful for ages now, Tell me why I should carry on my contract with you as you’re not carrying out your part of the deal, 💩

  • 14obrien141 Peterborough (@14obrien141) reported

    @O2 still no signal on my phone for over two days now this is a joke

  • ripper2010 Lee James Israel (@ripper2010) reported

    @O2 hey o2, I’ve arrived in Saville this evening and cannot get any mobile signal/connection. It just says it cannot find it. My bf @iain7777 has same phone and contract and it’s fine. Any ideas? Thanks.

  • LivvyCowan Livvy Cowan (@LivvyCowan) reported

    @O2 Wifi - so POS, card terminal, store radio (internet) & loyalty card scanner have no broadband access. Router is on but PPP light is off. Customer O2 access is also off

  • charlievevents Charlie Vanstone (@charlievevents) reported

    I am so fed up with @O2 when I have 5G coverage all up and down the country yet nothing works. 5G is a joke, no faster or reliable than 4G