O2

O2 Outage Report in Dundonald, Northern Ireland

No problems detected

If you are having issues, please submit a report below.

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 Dundonald, Northern Ireland

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

O2 Outage Chart in Dundonald, Northern Ireland 01/31/2026 22:50

At the moment, we haven't detected any problems at O2. Are you experiencing issues or an outage? 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 (51%)

    Phone (51%)

  2. Internet (30%)

    Internet (30%)

  3. Total Blackout (12%)

    Total Blackout (12%)

  4. E-mail (3%)

    E-mail (3%)

  5. Wi-fi (3%)

    Wi-fi (3%)

  6. TV (%)

    TV (%)

Live Outage Map Near Dundonald, Northern Ireland

The most recent O2 outage reports came from the following cities: Belfast and Kilroot.

Loading map, please wait...
City Problem Type Report Time
United KingdomBelfast Phone
United KingdomBelfast Internet
United KingdomBelfast Phone
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 Dundonald, Northern Ireland

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

  • Jay_McB Jason Brown (@Jay_McB) reported from Newtownabbey, Northern Ireland

    @virginmedia come on I have 4 Sims with VM. Even put something together online. Will @virgin customers be getting any rewards or paybacks like @O2 had to do when they kept getting network problems 😜

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

    @O2 AirPods and 🎅 is looking after them! Again fantastic service.

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

    Great customer service @O2. Placed an online order at 6.30pm last night and arrived 4.45pm in Belfast.

  • apallan ANN P V ALLAN (@apallan) reported from Belfast, Northern Ireland

    @Girlzmum Very poor service from @O2 especially to a front line worker in the NHS #NHS who needs her phone.

  • 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

    @TalkTalk No the @TalkTalk number was 03451720088 And @O2 give me 03451720091 The email number was 03451720032 No success at all very bad customer service so far !!!

  • StephenScarth Stephen Scarth (@StephenScarth) reported from Bangor, Northern Ireland

    @O2 Hi having problems making and receiving phone calls on a IPhone SE #O2

  • kkanecelt kierankane (@kkanecelt) reported from Belfast, Northern Ireland

    @o2 is the worst shittiest network I've ever been on in my life

  • columcoyle Colum Coyle (@columcoyle) reported from Castlereagh, Northern Ireland

    @angelcosta78 @DPDgroup_news @O2 @AppleSupport I’ve sent a complaint to O2 asking for a refund of the three days I’m missing out on my device plan. They’ve already charged me!

  • AskkeithInfo askkeith.info (@AskkeithInfo) reported from Castlereagh, Northern Ireland

    @O2 Reece in your forestside store was a legend I ran through door cut off from world and all sorted for phone and lap top in 12 mins a credit to public service he’ll be snapped up by someone soon give him a pay rise and pat on back

  • 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

  • EmGymMum Em (@EmGymMum) reported from Belfast, Northern Ireland

    @O2 @KLogan1977 Update: So @O2 asked me to DM details of the issue. I sent it hours ago, yet still no response. I wonder if there is an intention to help or it is an illusion of good customer service. Nor have I got promised call back after 22 hours from the CS phoneline. Not good!!

  • 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?

  • BrendanB2 Brendan Bonner (@BrendanB2) reported from Belfast, Northern Ireland

    @O2 I wouldn’t recommend anyone buying online and redeeming your phone. Go to the store, you can’t trust any of the online and virtual services. Was a handling getting phone set up, getting help and they only give you 50% of the value they say (no matter how good your phone is).

  • UberGeekFanboy Fanboy (@UberGeekFanboy) reported from Belfast, Northern Ireland

    @O2 trying to phone through to return a phone and keep getting cut off? Wtf.

  • leannereid1988 leane reid (@leannereid1988) reported from Castlereagh, Northern Ireland

    @O2 in o2 shop in newtownards the 3 fellas in the shop couldn't have bin any nicer and very helpful even when the problem was my own fault! Saved me a trip to Samsung! Def need a pay rise!! Thank you =)

  • SWAshleigh Ashleigh Shaw (@SWAshleigh) reported from Ballygowan, Northern Ireland

    How do I make a complaint with @O2

  • 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.

  • columcoyle Colum Coyle (@columcoyle) reported from Castlereagh, Northern Ireland

    @angelcosta78 @DPDgroup_news @O2 @AppleSupport Just checked and its now saying the same for me! Apparently it takes a full 26 hours to get from Birmingham to Down 🙄

  • thebaldfather Hugh Pollock (@thebaldfather) reported from Belfast, Northern Ireland

    @O2 I am amazed by the lack of support from your network. Trying for a week now to get help and your help and advice is pathetic when you eventually answer.

O2 Issues Reports

Latest outage, problems and issue reports in social media:

  • NWmidlander North-West Midlander (@NWmidlander) reported

    @jodielouiseart @O2 Can't wait for my contract to end, one of the worst signals I've ever had

  • GoldShyGuy1 Part Time MKT Drifter (@GoldShyGuy1) reported

    @O2 I don’t dispute the need for investment, however the tariff model could’ve been revamped any time over the last few years given the challenges people have faced financially. Another case of our costs go up and we’ll shovel on to the customer. Flexible tariffs are the future.

  • Trancer92019641 Trancer (@Trancer92019641) reported

    @O2 screw you with your price increase for s **** service and worse customer service! Lucky my contract ends in April then I'm off not sticking around with a bunch of thieves tra

  • richdstew Rich Stewart 🔰 (@richdstew) reported

    Has @O2 gone down?

  • DerekWa51216247 Derek Watson (@DerekWa51216247) reported

    @O2 *************** with the increase, definitely won’t be renewing…….**** service as well not worth how much you are charging……piss takers

  • ScubaJeff904 ScubaJeff (@ScubaJeff904) reported

    @O2 are you EVER gonna help? Your stupid support bot just sends me in circles, I ring up to be put on hold then call terminated, no replies on here, too bad I haven't got the money to pay off my contract or I'd be definitely leaving @O2 behind for good!!

  • SiinghAaron MoonBugatti (@SiinghAaron) reported

    @hayleymichellex @O2 It’s so stupid

  • Stevekingspurs1 Stevekingspurs1 (@Stevekingspurs1) reported

    @medieval_rat @EnglandRugby @O2 Bad.. but he plays for us Saturday now

  • Art_I_Fish Arthur Fish 🇬🇧🇺🇦 (@Art_I_Fish) reported

    @KatAdams83 @O2 Yes it's a bit of a bugger. My Virginmedia is going up 9 quid too. They're also adopting the RPI+interest rate crap soon as well.

  • misslhomer Lorraine Fletcher (@misslhomer) reported

    Hey @O2 for a phone company you are remarkably hard to speak to. Can I have a phone number for customer services please as I have gone round and round in circles on your app etc