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 BT7 and BT1.

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 05/04/2025 10:00

May 04: Problems at O2

O2 is having issues since 09:00 AM 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 (56%)

    Phone (56%)

  2. Internet (23%)

    Internet (23%)

  3. Total Blackout (12%)

    Total Blackout (12%)

  4. E-mail (4%)

    E-mail (4%)

  5. Wi-fi (4%)

    Wi-fi (4%)

  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 and Antrim.

Loading map, please wait...
City Problem Type Report Time
United KingdomBelfast Phone
United KingdomBelfast Phone
United KingdomBelfast Phone
United KingdomBelfast Wi-fi
United KingdomBelfast Total Blackout
United KingdomBelfast Wi-fi

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:

  • 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.

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

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

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

    @DPDgroup_news @O2 your service is a joke

  • billyjatkins billy (@billyjatkins) reported from Belfast, Northern Ireland

    @seanp280 @O2 Where are you in Belfast? I live beside city hospital and I get full bars all over the city, 5G too! Only when I venture into the depths of County Down does it deteriorate lol

  • 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 !

  • 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!

  • 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

  • salexander835 Stuart A (@salexander835) reported from Holywood, Northern Ireland

    @O2 I can't get logged into my account through the app or via the Web. Is there an issue?

  • 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👿

  • 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...

  • McGuinnessKevin Kevin McGuinness (@McGuinnessKevin) reported from Belfast, Northern Ireland

    @o2 any chance you can sort out the masts in Belfast.. really slow connections and dropped connections, I’m even with o2 (was with you when it was BT Cellnet) I’m with sky who use your network but I know of o2 customers having the same issues. #o2network

  • 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?

  • 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

  • catherine271076 Catherine Dwyer (@catherine271076) reported from Jordanstown, Northern Ireland

    @O2 I need to escalate a complaint re. a member of staff who refuses to to 1) process my upgrade and 2) who has just terminated my call. Who can I talk to? Your staff say it’s not possible to talk to a manager.

  • 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

  • IanRobinson Ian Robinson (@IanRobinson) reported from Stormont, Northern Ireland

    @chriswb @O2 No. Plus it says No Service where the O2 logo should be. I might try the SIM in my O2 iPhone.

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

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

  • gareth_thmpsn Gareth Thompson (@gareth_thmpsn) reported from Belfast, Northern Ireland

    @O2 you guys got a number to your payments team? I need to speak to someone. Automated IVR is poor.

  • 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

    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 👇

O2 Issues Reports

Latest outage, problems and issue reports in social media:

  • PettmanCarl Carl Pettman (@PettmanCarl) reported

    @O2 if you don’t want honest answers to your surveys don’t send them, then have someone waste my time on the phone asking why I scored you down. FFS!

  • kpincott76 Kirsty (@kpincott76) reported

    @O2 can someone help please I need to change my address and the app keeps sending me round in circles

  • mkms0618 Mkms0618@gmail.com (@mkms0618) reported

    @O2 @Qzauuu Get use to it,they won't give you any real solutions to fix it

  • youcanpass James Taylor (@youcanpass) reported

    @O2 I've pressed the bubbles in the sky thinking I'd need to book it but it's saying I have an hour to redeem! I'm coming on the 24th May and wanted to book. Can you cancel my redeeming so I can use it when we're there?

  • MLWEFC MLW (@MLWEFC) reported

    @O2 I was charged double my normal device plan last month. Paid it up to save any confusion but was told would be reflected on plan, it hasn't been. I've rung up 3 times and still no help. I want calling back today please. I want my money back. You've been a disgrace sorting this

  • tallis_lisa Lisa Tallis (@tallis_lisa) reported

    @O2 priority drinks not working in cafe Nero - advised to contact you?

  • londontoboston London to Boston (@londontoboston) reported

    @O2 hello the o2 priority cafe Nero app was not valid for the pistachio latte even though it’s in the terms and conditions - I wasn’t able to redeem - please help

  • StephieLodge Steph Lodge 🎭 (@StephieLodge) reported

    @O2 so you “can’t” investigate an unusual data usage on my account. I never use my data (24gb) but it’s not an error that I’ve apparently used 34.84gb in 5 hours overnight whilst sleeping?!? 🤔 Is that physically possible? Loyal customer for over 15 years lost in one day.

  • AlimentaryLON Alimentary London (@AlimentaryLON) reported

    @O2 removing weekly Nero coffee and replacing it with a monthly is not quite up there with P&O corporate fail but as I always purchased at least a croissant or a piece of cake when I got my freebie it seems like a backward move for both @_CaffeNero_

  • hannahivvy Hannah Apps (@hannahivvy) reported

    I’m still devastated @O2 and @_CaffeNero_ have changed the priority offer to once a month AND the link never seems to work