O2

O2 Outage Report in Derry, 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 Derry, Northern Ireland

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

O2 Outage Chart in Derry, Northern Ireland 02/07/2026 23:05

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Most Reported Problems

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

  1. Phone (52%)

    Phone (52%)

  2. Internet (29%)

    Internet (29%)

  3. Total Blackout (12%)

    Total Blackout (12%)

  4. E-mail (3%)

    E-mail (3%)

  5. Wi-fi (3%)

    Wi-fi (3%)

  6. TV (%)

    TV (%)

Community Discussion

Tips? Frustrations? Share them here. Useful comments include a description of the problem, city and postal code.

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O2 Issues Reports Near Derry, Northern Ireland

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

  • dartduignan180 sean duignan (@dartduignan180) reported from Culmore, Northern Ireland

    @virginmedia @O2 But not your customer service when it comes to cancelling an order

  • oharama Marian O'Hara (@oharama) reported from Derry, Northern Ireland

    @O2 Poor customer experience in-store today. Disappointed to say the least.

  • KieranKelly1988 Kieran Kelly (@KieranKelly1988) reported from Derry, Northern Ireland

    Quite shoddy of @O2 to refuse me a contract as a new resident of Northern Ireland when my driving licence is in the Republic of Ireland and not offer an alternative verification or reply to my email of complaint from 6 days ago.

O2 Issues Reports

Latest outage, problems and issue reports in social media:

  • Emily__Jackson Emily Jackson (@Emily__Jackson) reported

    Haven’t been able to have a single uninterrupted phone call since I moved because of TERRIBLE signal. @O2 please help! 😩😩

  • UK_Biz_Finance UK Business Finance (@UK_Biz_Finance) reported

    @O2 My son has lost his phone, hes received a SIM but not the phone he ordered as he has to confirm a link by email. He cant confirm the link as he needs his phone for his email as they send a text for log in!! No one seems to have a solution can someone help?

  • JoeTannorella Joe Tannorella (@JoeTannorella) reported

    Hi @EE. My calls have been dropping quite frequently since switching from @O2 in January (never had a problem before). Are there any known issues in the Cardiff area? Had both vaccine jabs now (Pfizer) and am really hoping this isn’t causing the issue. Thanks.

  • cookie31a Cullen Cook (@cookie31a) reported

    @O2 good morning There is a mast that's not been working near my workplace in Cardiff  CF14 7ZB Its been down for most of the week, is there any news on when it will be fixed as I need my phone when I'm in work, at the moment I have No signal.

  • CBrackenArtist Catherine Bracken (@CBrackenArtist) reported

    @O2 HI there, I've been trying to get in touch regarding my O2 mobile. As I'm getting dozens of calls from mobile numbers and text off mobile numbers pretending to be businesses. I get around 4 or 5 a day which is worrying. Please can you help. Thanks.

  • MissKMteacher Miss KM (@MissKMteacher) reported

    @niamhskinner @O2 Yes me too!!!! O2 say no known errors! Very annoying!

  • samanthaxobrown Samantha Brown (@samanthaxobrown) reported

    Anyone else have shocking signal with @O2 in Linwood?! 1 bar all the time 2 at a push if I’m having a lucky day, can’t phone out or take incoming calls cause the signal is that crap! Pay £49 a month for a phone that I can’t even use! So frustrating!!

  • MissKMteacher Miss KM (@MissKMteacher) reported

    @O2 4G being playing up for weeks now. Some days my internet won’t load at all on 4G other days it’s fine! Been told no known issues. Never had a problem before and been with you 15 years!

  • ashscoff91 AshleyScoffin (@ashscoff91) reported

    @O2 Problem at @GreggsOfficial end, but I have activated my code and it’s now it’s expired 😔😔😔

  • DanDanikov Danikov (@DanDanikov) reported

    @SeanWrightSec @O2 @HyperopticCS never did me wrong, I miss them