O2

O2 Outage Report in Welwyn, Hertfordshire, England

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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 Welwyn, England

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

O2 Outage Chart in Welwyn, Hertfordshire, England 11/20/2025 02:35

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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 (16%)

    Total Blackout (16%)

  4. Wi-fi (3%)

    Wi-fi (3%)

  5. E-mail (3%)

    E-mail (3%)

  6. TV (1%)

    TV (1%)

Live Outage Map Near Welwyn, Hertfordshire, England

The most recent O2 outage reports came from the following cities: Hemel Hempstead and Stevenage.

Loading map, please wait...
City Problem Type Report Time
United KingdomHemel Hempstead Phone
United KingdomStevenage Phone
United KingdomLuton Internet
United KingdomLuton Internet
United KingdomLuton Phone
United KingdomStevenage Phone

Community Discussion

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O2 Issues Reports Near Welwyn, England

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

  • a1_nos A1NOS (@a1_nos) reported from Hemel Hempstead, England

    Hey @O2 showing again why you really are market leaders in Customer Service. Big shout out to Lauren. 👌👌👌

  • HilaryRWriter Hilary Robertson (@HilaryRWriter) reported from Hitchin, England

    @O2 Yes. I’m trying to cancel my mobile broadband and cannot do it on myO2. The ‘help’ keeps sending me round in circles

  • philter66 Phil Turner (@philter66) reported from Hatfield, England

    @O2 simply dreadful customer experience tonight -felt really let down

  • ian_slade2 Ian Slade (@ian_slade2) reported from London Colney, England

    @O2 is the data network down? Zero mobile data connectivity all day. Plenty left on the plan

  • johndpmc none of your business (@johndpmc) reported from Luton, England

    @O2 words fail me with how shockingly bad you are Your service is appalling, doing a sim swap on my behalf without telling me or having the new sim in my possession!So now no phone or contact to anyone unless in WiFi, wanna hope I have no accidents when I’m outside!! #theworst

  • CalvinLaurenson Calvin Laurenson (@CalvinLaurenson) reported from London Colney, England

    @O2 is your London 4g network having issues? I have multiple o2 devices that aren't connecting

  • torgo Daniel Appelquist (@torgo) reported from London Colney, England

    Do you know what? Mobile operators get a lot of scorn, but I have spoken to some really lovely @o2 customer service reps over the last few days who have been very helpful sorting out all my contract and SIM issues. So 👏.

  • lovepbx Pauline (@lovepbx) reported from Waltham Abbey, England

    @O2 can someone from customer services contact me ... I need urgent help ... Thanks

  • ashley_leggett Ashley Leggett (@ashley_leggett) reported from London Colney, England

    @O2 full 4G signal in Chelsea and can’t even load a PDF attachment or Instagram post. Absolute shambles. Same over in white city. Same in London Bridge. Got better service last week 2000M up a mountain in Austria

  • JoshBates Josh (@JoshBates) reported from London Colney, England

    @O2 Hi, can you please help me add Spend Cap to my Pay Monthly account? Don’t seem to be able to do this from web site which is a little frustrating to say the least x

  • JanGoodeve Cllr Jan Goodeve (@JanGoodeve) reported from Hertfordshire, England

    @traceylsteve @O2 @GreggsOfficial I had the same issue in the #Hertford store, the app just said to try again later so ended up paying.

  • garywebbTHFC Gary Webb (@garywebbTHFC) reported from St. Stephen, England

    1/2 BEWARE everyone considering switching to @O2 They offer to port your existing number from your previous provider, which is really important to many, but FAIL miserably, when you call customer services multiple times, they promise a 4 hour resolution, this never happens..cont

  • Palouisea UnhappyHoopla (@Palouisea) reported from Shenley, England

    @VOXI_UK I have been on a staycation this week I am appalled at how poor your reception is in many parts of South East. Going back to @O2 as sim only!! Very frustrating 😕 missed many important phone calls. Pm me to discuss

  • lordshaun_ Lord Shaun O’Brien 🇺🇦 (@lordshaun_) reported from London Colney, England

    The customer service of @O2 is truly one of the worst I’ve ever come across. They tell me to call, but I can’t because they’ve cut off my phone. The number goes through to a bot. Quelle surprise! I paid the bill, as always, and yet here we are. Been on the chat thing for four hrs

  • Mattoco Matt O'Connor (@Mattoco) reported from St Albans, England

    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 👇

  • lordshaun_ Lord Shaun O’Brien (@lordshaun_) reported from St Albans, England

    @O2 customer services truly are as much use as an ashtray on a motorbike.

  • misswotless1 Miss Wotless (@misswotless1) reported from London Colney, England

    Remind me never to frequent the @O2 store on Oxford Street again - so rude and unhelpful, telling the customer before me not to come back

  • garywebbTHFC Gary Webb (@garywebbTHFC) reported from St. Stephen, England

    2/2 @O2 promise to call you back, but as yet nothing, they promise to escalate to a manager, but surprise they don’t call you back either, their Twitter also ignores your serious concerns.Think seriously before choosing @o2 if there’s an issue THEY don’t seem to care! @VMO2News

  • MarkstanYoutube Mark Stanford (@MarkstanYoutube) reported from Luton, England

    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 👇

  • ShanWilson_ Shan Wilson (@ShanWilson_) reported from Hemel Hempstead, England

    @O2 @mtsavor I cannot call 202 or any other number that is supposed to be “o2” as I don’t know who I’m talking to. I’ve been hung up on twice when I’m explaining what’s happened. I need to cancel the iPhone contract or change the address with an actual o2 staff member!

O2 Issues Reports

Latest outage, problems and issue reports in social media:

  • doomdvys ʟᴀᴜʀᴀ (@doomdvys) reported

    @O2 got a new payg sim, put it in and topped up but sim still not working

  • AdamGrif1 Adam Griffiths (@AdamGrif1) reported from Penycae, Wales

    @wxmsmith @O2 Yeah. Was on Tesco mobile for years which uses O2’s network. Would constantly have 4G but it’d rarely work/load anything. Swapped to EE and no issues now 👍🏼

  • JamieBPage Jamie Page (@JamieBPage) reported

    3 mths constant letters from @O2 for an their error. 3 X 45 min calls to Customer Service during Feb/Mar telling me it's dealt and will close down with 24hours. Still getting letters. At what point do I start harassment proceedings. #ofcom

  • the_waites_ The Waites (@the_waites_) reported

    Well was getting excited about my new phone arriving today (next day delivery) but both @O2 or @dhlexpressuk didn’t not tell me that Saturday is not included in the next day delivery. Yes I know I am impatient customer but this should have been explained when ordering

  • coolnavnit Navnit Punj (@coolnavnit) reported

    @FredSmi22494411 @O2 Yeah, regretting my decision to port in to @O2. Worst customer service!

  • chiefdougster Jon 🏴󠁧󠁢󠁷󠁬󠁳󠁿🇺🇦 (@chiefdougster) reported

    @wxmsmith @O2 O2 at the Racecourse and Plas Coch is practically non-existent even on non-match days. Also very poor at the Industrial Estate too.

  • Danford2013 John McCarthy (@Danford2013) reported from Whickham, England

    @O2 I was spammed. Then defrauded. Went to O2 shop and reported issue. Told Fraud Dept would contact within 2 days. Three further calls to O2 (2O2) and one month later still no Fraud contact and no resolution. Today notice to take another payment. @O2 any chance of sorting?

  • AllurinAssassin AllurinAssassin (@AllurinAssassin) reported

    @O2 can someone please explain why I had a whole week and a half of no network because of you guys fixing stuff to then again having no network! I have a mother in hospital that I need to call daily! Im in Chesterfield and I want answers but seem to not get any?! Disgraceful!

  • SimSpeaks Simeon 🤙🏾 (@SimSpeaks) reported

    @its_me_agx @O2 I’m with them and I get a signal everywhere apart from in my house

  • jonadevitt 🏴󠁧󠁢󠁷󠁬󠁳󠁿 Jona Devitt 🏴󠁧󠁢󠁷󠁬󠁳󠁿 (@jonadevitt) reported

    @RichWXM @wxmsmith @O2 My word signal pre match abs half time is non existent. Usually get a flurry of notifications 10 mins in!