This provider is no longer actively trading. Likely wireless. No CH, no TP. WISP. [FLAGGED_MISSING_CH] | [ARCHIVED] 2026-04-21: Website DNS error; small WISP; no distinct CH match; likely defunct.
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Extreme Internet

Extreme Internet is a UK alternative network provider delivering broadband services to UK - London.

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About Extreme Internet

This profile is built from our broadband market dataset and the sources linked on this page. We do not repeat unchecked marketing claims; numbers and dates match fields on file or linked evidence.

Extreme Internet is a UK alternative network (altnet) operator. The company delivers fixed wireless services across London. Headquartered in Kingston upon Thames, UK with a team in the 1-10 employee range. Extreme Internet is NCSC Cyber Essentials certified. As part of the UK altnet movement, it offers consumers a genuine alternative to the traditional Openreach-based market.

Key details

ADR schemeCommunications Ombudsman
Parent companyIndependent

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Technologies on file

These labels come from our directory data for this provider. Short explanations below describe the technology terms in general; they are not a statement about availability at your address.

  • Fixed wireless

Coverage

UK - London

This provider is archived in our directory. Find an alternative active provider.

If something goes wrong

Here is where Extreme Internet sits within the UK consumer protection framework.

Regulator
Ofcom. Sets the General Conditions that Extreme Internet must follow.
Complaints
Communications Ombudsman. The Communications Ombudsman is a free, Ofcom-approved dispute resolution scheme. After eight weeks with an unresolved complaint, you can escalate for an independent decision.
Switching
Complies with One Touch Switch. Your new provider handles the switch.
Security
Cyber Essentials: Yes (typical for B2B telecoms)

Questions and answers

Straight answers from our directory fields for Extreme Internet. If you need live pricing or availability, use the postcode tool or the provider link above.

What coverage note is on file for Extreme Internet?
Our dataset records: UK - London
Is Extreme Internet in the BroadbandSwitch postcode comparison tool?
No. This provider is not currently among those we return in the postcode comparison tool. You can still compare other providers we list.
What does verification status mean on this profile?
This profile's verification status in our directory is recorded as: archived. That reflects our internal checks against the sources linked on this page, not a government endorsement.
Does this directory flag Extreme Internet as Ofcom-registered?
Yes. We record this provider as Ofcom-registered (General Conditions of entitlement). For complaints or disputes, follow the dispute route and Ofcom guidance that apply to your situation.
Which dispute resolution scheme does this directory list for Extreme Internet?
Communications Ombudsman. The Communications Ombudsman is a free, Ofcom-approved dispute resolution scheme. After eight weeks with an unresolved complaint, you can escalate for an independent decision.
Does this directory record One Touch Switch for Extreme Internet?
Our dataset records One Touch Switch as: Yes (Ofcom-mandated compliance).
What is the BroadbandSwitch verification score?
It is an internal score from 1 to 10 based on how thoroughly we have checked Companies House, regulator and trade-body fields, and independent review data where available. It is not a measure of customer satisfaction.