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 01/30/2025 13:00

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Most Reported Problems

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

  1. Phone (60%)

    Phone (60%)

  2. Internet (19%)

    Internet (19%)

  3. Total Blackout (13%)

    Total Blackout (13%)

  4. Wi-fi (4%)

    Wi-fi (4%)

  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, Ballynahinch, Carrickfergus and Newtownards.

Loading map, please wait...
City Problem Type Report Time
United KingdomBelfast Phone
United KingdomBallynahinch Total Blackout
United KingdomCarrickfergus Phone
United KingdomBelfast E-mail
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 Castlereagh, Northern Ireland

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

  • 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

  • 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?

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

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

  • 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.

  • 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.

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

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

  • 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

  • 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.

  • 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.

  • 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

  • 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

  • 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

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

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

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

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

  • 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).

  • 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.

  • 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 !

  • 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👿

O2 Issues Reports

Latest outage, problems and issue reports in social media:

  • GetMeAManager Karen is Correct (@GetMeAManager) reported

    @EffeR16 @O2 But you've not provided any sort of issue. Maybe someone can help if you give a little more info.

  • toptoffee5 Vicky Jones (@toptoffee5) reported

    @bunn_debbi @O2 Deb I contacted @O2 for you and they claimed they’d contacted you. They have the worst customer service, they can treat you like this. No phone for a month and getting told lies every time you ring, not on

  • EffeR16 EffeR (@EffeR16) reported

    @GetMeAManager @O2 Please don’t comment unless it is to help. I haven’t been able to get hold of o2 through any other means. I have been trying to sort it since 8am this morning.

  • Rogred76 Rog (@Rogred76) reported

    @MarkEvansO2 @O2 the Gov have a 3 step plan to fight covid and o2 has a 3 steps plans to annoy customers it is 1. Lie 2. Excuses 3. Wait 24 hours If anyone is thinking of joining o2 think again one of the worst customer services around ABOID AVOID AVOID AVOID AVOID AVOID AVOID

  • wysiwyg100 Mr. Whizz (@wysiwyg100) reported

    @O2 your network is dreadful and your customer service is even worse

  • roisinduffyx Roisin (@roisinduffyx) reported

    @O2 would not recommend O2 to ANYONE, absolute shambles of a company and get nothing but problems from them. TERRIBLE SERVICE

  • Rogred76 Rog (@Rogred76) reported

    @MarkEvansO2 @O2 Has anyone else had a problem with o2 lying and making excuses fobbing you off all the time if so message me I have the resources to help you take this further and the more people the better and the solicitor can take this forward.

  • TinaHurst27 Little Miss Introvert (@TinaHurst27) reported

    @O2 having issues with my Internet. Can you help?

  • shonamackie 🏴󠁧󠁢󠁳󠁣󠁴󠁿 Shona Mackie 🏴󠁧󠁢󠁳󠁣󠁴󠁿 (@shonamackie) reported from Huntly, Scotland

    @theofficialKAE @O2 Don't know I've never won

  • sammylou28 Sam (@sammylou28) reported

    @O2 👋 just moved house and did all the checks online for signal strength.. yet we have awful signal even for 3G phone calls. Please can you help? RG26 4