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Openreach Damages Netomnia’s Main Fibre Optic Cable Near Bristol

Saturday, Oct 25th, 2025 (8:57 am) - Score 9,360
Netomnia-UK-Engineer-walking-on-road

Hundreds of customers on Netomnia’s (Substantial Group) alternative broadband network in the Bristol (South West England) area, which has now covered 2.8 million UK premises RFS (inc. 400,000 customers) with their full fibre (FTTP) lines, are suffering connectivity problems after Openreachtook down one of our main cables” yesterday afternoon.

According to a brief service status update, which was posted to the website of their main ISP, YouFibre: “We are currently experiencing issues in the Filton area. If you are in the area and you are experiencing issues, please rest assured that we are already working hard to resolve the issues. Thank you for your patience.”

NOTE: The Substantial Group is backed by over £1.6bn of equity and debt from investors Advencap, DigitalBridge, and Soho Square Capital etc. The group, via Netomnia, aims to cover 3 million UK premises by the end of 2025 and then 5m by the end of 2027 (inc. 1m customers by 2028). The service is currently available across parts of over 90 cities and towns.

Filton is a town about 6 miles north of Bristol on one of Netomnia’s main fibre links into the city. Details of the outage remain unclear, although Netomnia’s CEO, Jeremy Chelot, this morning stated via X that Openreach’s engineers were to blame: “Sorry Bristol, Openreach took down one of our main cables yesterday evening! We have c.500 customers impacted!

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The latest update a few minutes ago indicates that the number of customers still offline is around 200-300. ISPreview understands that the accident occurred at around 5pm yesterday, while Openreach’s engineers were working to pull a new sub duct, albeit breaking Netomnia’s duct/cable at the same time. Repairs to main fibre links can be complex and time-consuming, although Netomnia hope to have it fixed by tonight.

Sadly, such accidents, while rare, do occasionally occur when network operators need to work in close proximity to each other’s infrastructure (Netomnia runs a lot of their fibre via Openreach’s existing cable ducts and poles). Thankfully, this outage only impacts part of Netomnia’s network in the Bristol area. The operator has invested £47.7m to deploy their fibre across 159,000 premises in the area.

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Mark-Jackson
By Mark Jackson
Mark is a professional technology writer, IT consultant and computer engineer from Dorset (England), he also founded ISPreview in 1999 and enjoys analysing the latest telecoms and broadband developments. Find me on X (Twitter), Mastodon, Facebook, BlueSky, Threads.net and .
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27 Responses

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  1. Avatar photo BrightCandle says:

    I had the same thing happen locally last year. BT in doing their work on the cable had expanded their use in the under pavement area beyond the space available and hammered the cover shut cutting cityfibres cable in the process. They denied they had even been there.

    I wouldn’t just assume these incidents are accidental, they seemed to have a cavalier disregard for their competitors equipment, acted maliciously and lied about it.

    1. Avatar photo The real Witcher says:

      suspect it happens to Openreach network much more than alnets, but Openreach tend not to gob off about it. pretty unprofessional comment from Netomnia

    2. Avatar photo TheRedPen says:

      Nonsense. The damage was almost certainly done by a subcontractor, who would not consider Netomnia a ‘competitor’. They’re just another telecoms company. Someone else they might work for in the future.

  2. Avatar photo T says:

    Use your own infrastructure if you don’t want this sort of risk Jeremy. Can you imagine Clive Selley posting on social media about another fibre provider damaging Openreach network such as when Netomnia knocked out some DSLAM’s in Guildford

    1. Avatar photo Ben says:

      Agreed. Very unprofessional, its clear their aim is to damage reputation with the customers affected.

  3. Avatar photo Jason says:

    Its only pay back

  4. Avatar photo Snoo says:

    Imagine Openreach publicly sent a message out with who’s to blame every time an alt net, council or other utility damaged one of their cables.

    I’d imagine the CEO will also publicly apologise every time one of their engineers damages another competitors network from now on…..

    1. Avatar photo Dave "MW0DCM" in R.C.T. says:

      Wait till the mobile operators “Accidentally” bend an antenna or do similar… Towers cover a larger area especially on 800MHz here in the rural Valleys of South Wales…
      I can imagine it “Bryn it’s b’there” “b’where? Oh b’there!” Snap!

    2. Avatar photo Lister says:

      Yeah.. we can’t have network operators being transparent about who caused the damage to their networks.. that would be terrible [end sarcasm]. I for one would welcome operators doing that as naming and shaming has a tendency to collectively reduce bad practice.

    3. Avatar photo Ben says:

      Lister, then you would be put off most companies

  5. Avatar photo Meadmodj says:

    Certainly unprofessional.

    Damage can occur at anytime people are working. Ideally networks are installed and only maintenance visits are needed and with fibre that should be seldom.

    Engineers will have been careful but with the lack of quality by subcontractors I have personally seen it is a difficult issue and Openreach have a lot of copper to remove going forward and the Altnets using PIA are not making that easy.

    I am sure Openreach are experiencing multiple damage issues daily to their fibre and copper.

  6. Avatar photo FibreBubble says:

    Let he who has no sins cast the first rope burn.

    Very unprofessional behaviour from the CEO.

    1. Avatar photo Sam says:

      Apologizing to the customers is a good move

      The customer is king

      Staying silent is what is unprofessional and not caring at all

  7. Avatar photo Rib says:

    All this stuff about “being professional”. I’d much rather companies and CEOs be transparent and reveal the root cause of issues (whether caused by themselves, others, or acts of god), it’s much less frustrating than being kept in the dark for god knows how long. This goes the other way too, if Netomnia were to damage Openreach’s infrastructure I would want them to disclose that as well, their loss if they decide not to.

    1. Avatar photo Ben says:

      Then Ofcom would gun for Openreach damaging Altnets reputation. Any other professional company doesnt highlight the failures in such a manner. Although it would be nice for it to be a level playing field and for Openreach to highlight the damages caused by Netomnia to their dslams recently.

    2. Avatar photo Ben says:

      Ofcom wouldnt have a go at Netomnia for purposely aiming to damage reputation. But if Openreach did this then it would be WW3 and all the AltNets would kick off, thats why they dont.

  8. Avatar photo Mike says:

    AltNets was an insane vision that should never have occured. The UK would be better off with a single government owned, privately run, telecoms infrastructure provider. Having sometime 3 or 4 different fibre optic companies piggy backing off of 1 companies infrastructure is madness. All utility companies damage altnets cables because they are poorly installed and hard to locate predig. On the other hand I know for a fact that the altnets have damaged a lot of utilities in the cavalier way they installed their infrastructure.

    The government created a wild west of telecommunications infrastructure and we are simply reap what’s been sown.

    1. Avatar photo Winston Smith says:

      Nexfibre are owned by the same parent company as Virgin Media and in effect building new network for VM. They are in no real sense an altnet.

    2. Avatar photo MikeP says:

      Yeah, coz Post Office Telecomms/BT/Openreach never damaged their own outside plant. Never stole a pair to provide service.

      Oh, no.

      Never, ever.

  9. Avatar photo Jason B says:

    Just saying, you upset the fibre masters, who put you all on the C table you pay the price of time, always pay your man, especially if he knows your network.

  10. Avatar photo Neil Howard says:

    Having worked in the network for the last 29 years I can tell you categorically that the alt nets will do ANYTHING to get their cables into already overcrowded underground conduits, even if it means taking existing working cables out!! Openreach will arrive at a fault caused by these alt nets and instead of ripping out the recently installed cables to put their own cables back in, they have to work another way out at their expense!!

    1. Avatar photo Big Luigi says:

      Too true brother – seen it a hundred times, if not thousands…. Turn up to a fault – oh – brand new pink fibre optic cables installed in our network – no room for these existing black cables that have been here for years serving existing customers…. let’s just rip em out, cut them back, get ours in and get the hell out of here before someone realises what we’ve done – because we get paid for the job – not the consequences…. that’s someone else’s problem….

  11. Avatar photo Mick says:

    It’s ok for over service providers to cut , rope burn and stamp all over openreach network . Not a thing is said . But when openreach does it it’s all over the Google news .

  12. Avatar photo James says:

    About time we have clarity from Netomnia on issues, the amount of times I see issues and nothing gets said about it

  13. Avatar photo Rhys says:

    Jobs never go well that start at 5pm on a friday!

  14. Avatar photo Jon Motson says:

    Where’s the resiliency? And before anyone says anything, CotyFovre ensure resiliency at every FEX…

  15. Avatar photo Jon Motson says:

    CityFibre ensures resiliency to each of their FEXs, including one leg, using PIA in many cases. So what happened here?

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