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 01/15/2026 08:50

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Most Reported Problems

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

  1. Phone (49%)

    Phone (49%)

  2. Internet (30%)

    Internet (30%)

  3. Total Blackout (14%)

    Total Blackout (14%)

  4. E-mail (4%)

    E-mail (4%)

  5. Wi-fi (3%)

    Wi-fi (3%)

  6. TV (%)

    TV (%)

Live Outage Map Near Welwyn, Hertfordshire, England

The most recent O2 outage reports came from the following cities: Buntingford, St Albans, Hemel Hempstead, Welwyn Garden City, Hertford and Waltham Cross.

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City Problem Type Report Time
United KingdomBuntingford Total Blackout
United KingdomBuntingford Internet
United KingdomSt Albans Phone
United KingdomHemel Hempstead Phone
United KingdomWelwyn Garden City E-mail
United KingdomSt Albans Phone

Community Discussion

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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 Welwyn, England

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

  • 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

  • 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

    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

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

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

  • 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!

  • 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

  • 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

  • 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. 👌👌👌

  • fierce_unicorn 🦄 (@fierce_unicorn) reported from Enfield Lock, England

    @O2 merlin pass code is not working, can you help?

  • Atanvarne ㄥ乇乂丨乇 (@Atanvarne) reported from Broxbourne District, England

    @O2 That’s it. They thought that 7am was a decent time to call a customer, even without knowing that I work shifts and was working late last night. 9am I’d have considered acceptable. I wouldn’t have liked it but 9am is REASONABLE. 7am is absolutely NOT.

  • 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

  • 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

  • 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 👏.

  • 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.

  • 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

  • davidluxton99 David Luxton (@davidluxton99) reported from London Colney, England

    Disappointing poor customer service from @dhlexpressuk who inform me of my parcel delivery at 10.40 this morning then send another message to inform me it will now be 6 days later! #DHL not fit for purpose as a #courier for @O2 as I will now cancel the order

O2 Issues Reports

Latest outage, problems and issue reports in social media:

  • LadyDaveO Lady Dave (@LadyDaveO) reported

    @O2 Hi, my phone stopped being able to call/text after a message saying sim not provisioned. Upgraded device thru O2 last week but when phone arrived it didnt include new sim, which is now in post. Can u help get current phone working again until new one is up and running? Thanks

  • joelipo Joseph Lipson (@joelipo) reported

    @O2 Must be an o2 staff member. Can’t see the urgency to resolve a customers matter who has absolutely no service and seems their account has been terminated by o2

  • kylemorenogray Kyle Moreno-Gray (@kylemorenogray) reported

    Please @O2 respond to my Dm/ emails/ phone calls. This is ridiculous. Someone help me get to the bottom of what is going on with my order

  • GabbiEzekiel_ Gabrielle Ezekiel (@GabbiEzekiel_) reported

    @O2 That it’s 24-48 WORKING hours for a call back from operations manager which will be between 23/09-27/09 Customer advisor also refused to put us through to a manager despite being put straight through last week and was hung up on during follow up call by o2 for feedback #o2

  • superstaryas7 yas ➐ (@superstaryas7) reported

    @MilyCurle @O2 Yes. It hasn't been working properly since Thursday and I received a text this morning to say they'll update me in 5 days or sooner. A complete joke. Defo will be after compensation when it's fixed as I'm paying for a service that isn't being provided #O2issue

  • drwormau Andrew F (@drwormau) reported

    Trying to sort out a problem with my less than 1 day old @O2 account, not off to a good start. The online chat is awful and I can’t find a phone number to speak to a real human. Have I made a mistake changing to them?

  • sculptorini Steven Hunter🏴󠁧󠁢󠁳󠁣󠁴󠁿 (@sculptorini) reported

    @O2 signal in #eltham dreadful recently. Anyone else having these problems. #se9 @ElthamMatters @ThisisEltham

  • chiefmackers Paul McClure (@chiefmackers) reported

    I was actually changing to @O2 because of the package with Virgin. I’ve had an unlimited o2 SIM sittin in an envelope since June. But since @ThreeUK have never let me down I can’t leave now. Will cancel o2 at first chance or I’ll pay for 2 contracts if I have to til o2 expires.

  • BriteEyedViolet Erica Susan Jones (@BriteEyedViolet) reported

    Hi @O2 a man called to tell me you want to give me 20% off my bill because you’ve lost a load of customers. He then called me back and got angry when I put the phone down. Is there a way I can report the scam? Because I’ll be very worried if that’s the approach your staff take!

  • blondeboyrhys Rhys 💥 (@blondeboyrhys) reported

    Was just told by an advisor in @O2 market st that 4G has been turned off in MCR to accommodate 5G ?? So, why are we being sold 4G if you can’t provide the service? @O2