O2

O2 Outage Report in Castlereagh, Northern Ireland

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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 Castlereagh, Northern Ireland

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

O2 Outage Chart in Castlereagh, Northern Ireland 11/29/2025 04:20

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Most Reported Problems

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

  1. Phone (47%)

    Phone (47%)

  2. Internet (30%)

    Internet (30%)

  3. Total Blackout (17%)

    Total Blackout (17%)

  4. Wi-fi (3%)

    Wi-fi (3%)

  5. E-mail (2%)

    E-mail (2%)

  6. TV (1%)

    TV (1%)

Live Outage Map Near Castlereagh, Northern Ireland

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

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

Community Discussion

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O2 Issues Reports Near Castlereagh, Northern Ireland

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

  • cimota Matt Johnston (@cimota) reported from Lisburn, Northern Ireland

    @O2 Which was apparent from my first tweet. I’m not asking for you to intervene. I was asking when are you going to develop some principles and stop selling your customers details to bad players like @Aerial_Direct

  • 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!!

  • 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 🙄

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

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

  • 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!

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

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

  • 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 😜

  • cimota Matt Johnston (@cimota) reported from Lisburn, Northern Ireland

    @Aerial_Direct @O2 I’ve been onto your customer services. They refused to tell me how much it would cost to buy out this awful contract. Threatened termination fees from @o2. A retentions team will be in contact. 🙄 My family member *thought* she was with @o2 - misdirection from you of course. 🤮

  • Utter_Dil_Emma Mad Madame Em (@Utter_Dil_Emma) reported from Belfast, Northern Ireland

    I assume my bus home crashed and I died because hell is surely dealing with @O2 customer service chat for a ******* hour and a half.

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

    How do I make a complaint with @O2

  • cimota Matt Johnston (@cimota) reported from Lisburn, Northern Ireland

    @O2 2) They’ve endured under this contract for 30 months (exploited by salesmen) and it finally ends in April so they’ve asked me to help them. I went into our local O2 store and they told me it was a 33 month contract, wasn’t actually with them and there would be a termination fee

  • cimota Matt Johnston (@cimota) reported from Lisburn, Northern Ireland

    @Aerial_Direct @O2 I’ve spoken to Naomi on your team already. That’s was a useless ten minutes. Refused to tell me details of how to cancel - just threatened temrination fees. Offered renewal. Honestly she would have had to have offered a unicorn in a colour of my choice to get a renewal.

  • Deadandgone70 Joel Ferguson (@Deadandgone70) reported from Newtownards, Northern Ireland

    Glad I’m leaving @O2. Trying to recycle my phone and according to CEX, TescoMobile and Game the small mark on my phone wouldn’t be a problem. But send my phone off and they say they’d give 50% of the value. Jokers like. Even in store they said it wouldn’t be a problem

  • 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 !!!

  • 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.

  • 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 =)

  • cimota Matt Johnston (@cimota) reported from Knockmore, Northern Ireland

    @O2 But thanks for your valiant “how can we help” which you know and I know was “customer service theatre”. 🎭 It really gives the impression you care one iota about customer service and privacy. 👌 Which is, of course, nonsense. But good play 👏

  • 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

  • cimota Matt Johnston (@cimota) reported from Lisburn, Northern Ireland

    @Aerial_Direct @O2 You play fast and loose with customer records and exploit trust. Shame on @o2 for a blatant breach of customer goodwill.

  • 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).

O2 Issues Reports

Latest outage, problems and issue reports in social media:

  • percyblakeneybt Percival Blakeney Bt (@percyblakeneybt) reported

    @O2 looks like your app isn’t working. Trying to login to change tariff. Not getting in on iPhone, iPad or laptop.

  • jayshah4455 Jay Shah (@jayshah4455) reported from Swindon, England

    @O2 @TheO2 my phone number was barred when i was out of uk,when i came back and contacted o2,they says number has gone,what should i do to get my number back? kindly help asap

  • Raveenix1 Raveenix (@Raveenix1) reported

    @O2 still no fix for the H+ issue in Burton - on - Trent..... Are you sure it's actually being looked at? It's taken a ridiculous amount of time now, very disappointed

  • AndrewS01250914 Andrew Scott (@AndrewS01250914) reported

    @O2 They've removed it, and will add it again in 24 hours. So I'll see how that goes. One wee quick thing (won't explain mums issue) is the provisioning different for an iPhone? My O2 account has an iPhone on it which my sister has. Her account has an Xperia which I have. 🙄

  • zephyr681 Sarah (@zephyr681) reported

    @O2 is 7726 not working today?

  • METASOUTHDUB 🔌 (@METASOUTHDUB) reported

    @O2 is there currently issues with o2 network in DT4, Weymouth? No 4g whatsoever

  • SherriBonke - YT: SherriBonke 💓 (@SherriBonke) reported

    - @O2 when are you going to improve your signal in Peckham please??? Because it’s been so crap for like 3 years and it never used to be like this.

  • GruffapGymru Gruff (@GruffapGymru) reported

    I wonder if @O2 actually repair masts anymore, or if they're just content to send out continual reminders to people that the mast is broken and a timsecale for the next applogy message to arrive.....

  • MertDuy MertDuy (@MertDuy) reported

    @O2 I have been charged more money for my monthly payment when it’s usually £15 can you help

  • Matthew_Delong Ⓜⓐⓣⓣⓗⓔⓦ Ⓓⓔⓛⓞⓝⓖ (@Matthew_Delong) reported

    @O2 Thats ok no problem.