Am I regulated?
Understanding the scope of UK telecoms regulation
Am I providing an electronic communications network or service?
Whether an organisation is regulated under the UK electronic communications regime depends on whether it provides an “Electronic Communications Network” (ECN) or an “Electronic Communications Service” (ECS) within the meaning of the Communications Act 2003. The distinction determines the extent to which Ofcom’s statutory framework applies, including the General Conditions of Entitlement and the security obligations introduced by the Telecommunications (Security) Act 2021.
This page outlines the governing framework, the definitional boundaries between ECN, ECS and Information Society Services (ISS), and the distinction between private and public networks to assist organisations asking “am I regulated?” under UK law.
Am I regulated?
The legal framework
The UK regime derives from the Communications Act 2003 (Act), which implemented the EU’s 2002 regulatory package and is maintained as assimilated domestic law. Ofcom is the statutory regulator responsible for carrying out the functions set out in the Act, including the setting and enforcement of regulatory conditions, dispute resolution and oversight of numbering and spectrum.
The regime is technology-neutral. It applies to fixed, fibre, mobile, satellite, wireless, subsea and virtualised infrastructure, and to services conveyed across those networks.
For reference, the statutory definitions are contained in s23 of the Act:
- Electronic Communications Service (ECS): any service consisting wholly or mainly in the conveyance of signals over ECNs, excluding services providing or exercising editorial control over content.
- Electronic Communications Network (ECN): any transmission system for the conveyance, by electrical, magnetic or electromagnetic energy, of signals of any description, together with associated apparatus and facilities.
These provisions operate alongside the Wireless Telegraphy Act 2006, which governs the licensing of radio spectrum, and the Telecommunications (Security) Act 2021, which imposes statutory security measures on public ECN and ECS providers.
Information Society Services and the ECN/ECS boundary
Many digital services operate at the boundary between regulated electronic communications services and Information Society Services (ISS). An ISS is generally a service provided at a distance, by electronic means and at the individual request of a user, where the conveyance of signals is not the substantive feature of the service.
The Court of Justice has clarified the dividing line. In Skype (C-142/18), the Court held that the SkypeOut service constituted an ECS because end-users relied on Skype for connectivity to the public switched telephone network. Transmission was the essential element of the service. In contrast, in Gmail (C-193/18), the Court concluded that Gmail was not an ECS because Google did not convey signals; transmission was delivered by users’ internet access providers and was not the principal functional characteristic of Gmail.
These decisions confirm that the assessment is functional and fact-specific. The question is whether the provider is substantively responsible for the conveyance of signals and whether users reasonably understand the service to provide connectivity. Where the transmission layer is incidental, the activity is more likely to fall within the ISS category.
The analysis also interacts with the private/public distinction. An activity that would otherwise fall outside the ECN/ECS definitions remains unregulated unless the provider also offers connectivity to non-related third parties for remuneration. As set out in Ofcom’s Definition of Relevant Activity and Turnover guidelines, any such external offering is treated as a public ECN/ECS, even where provided to a single customer.
Private and public ECNs and ECSs
The Act distinguishes between networks and services provided to the public and those used solely on a private basis. A public ECN or public ECS is one that is made available for use by members of the public. In practice, Ofcom adopts a substantive test that focuses on the relationship between the provider and the recipient of the service rather than the scale of deployment.
Ofcom’s position is set out expressly in its Definition of Relevant Activity and Turnover guidelines, which underpin its administrative charging framework. In those guidelines, Ofcom states that where an organisation provides an ECN or ECS to any non-related third party for remuneration, the activity is treated as a public ECN or ECS. This applies even where the provider serves only a single customer. The rationale is that a third party acquiring connectivity has a reasonable expectation that the statutory regulatory protections apply, and that the provider is supplying the service on a commercial basis rather than for internal use.
The same guidelines also confirm that internal communications within an undertaking, including communications between entities within the same corporate group, are generally treated as private and fall outside the scope of relevant turnover calculations. This reflects the broader policy that networks confined to internal operational needs, and not made available externally, are not “public” for the purposes of the regulatory regime.
In practical terms:
- A network or service used exclusively within an organisation (or within a group of related entities) remains private unless it is made available to unrelated third parties.
- Where connectivity is supplied to tenants, partners, affiliates outside the corporate group, customers or any non-related person for consideration, Ofcom will usually regard the network or service as public.
- The classification is technology-neutral and applies irrespective of whether the provider owns the underlying infrastructure or resells connectivity purchased from another operator.
This distinction has significant consequences for the application of the General Conditions, eligibility for numbering resources and the statutory duties imposed by the Telecommunications (Security) Act.
The General Authorisation regime
The UK operates an open authorisation regime. No licence or notification to Ofcom is required to provide an ECN or ECS (other than spectrum licensing). Organisations that choose to provide ECNs or ECSs automatically become subject to the General Conditions of Entitlement.
For more information see our guide to the General Conditions of Entitlement.
Electronic Communications Networks
An organisation is likely to be providing an Electronic Communications Network where it owns, operates or manages a transmission system for the conveyance of signals, together with the associated apparatus and facilities. The statutory definition applies irrespective of the underlying technology and covers fixed, fibre, wireless, mobile, satellite, subsea and virtualised environments. These questions commonly arise for organisations assessing whether they are regulated and asking “am I regulated” for the purposes of the UK regime.
The assessment focuses on functional responsibility. Network ownership is not required. An organisation provides an ECN where it controls, manages or is responsible for the operation of the transmission system, including in virtualised or software-defined deployments where the transmission layer is orchestrated at the application level.
Activities which are classified as ECN provision typically include:
- fibre and fixed-line networks;
- mobile, macro-cell, small-cell and wireless networks, including Wi-Fi deployed for use by third parties;
- backhaul, leased-line and transport systems;
- subsea cable systems and landing-station operations;
- software-defined or virtualised networks where the provider controls the transmission path; and
- multi-site networks supplying connectivity to multiple entities.
Whether an ECN is public or private depends on availability to non-related third parties for remuneration. As set out in Ofcom’s Definition of Relevant Activity and Turnover guidelines, where connectivity or transmission capability is supplied to any external customer, the activity will generally be treated as public and therefore subject to the General Conditions and the statutory security obligations.
Electronic Communications Services
An organisation is likely to be providing an Electronic Communications Service where it offers, for remuneration, the conveyance of signals over an ECN. The definition captures services provided wholly or mainly by way of connectivity, whether at retail or wholesale level, and includes services delivered using another operator’s network infrastructure. This is central to determining the answer to the question “am I regulated” when offering connectivity-based services.
The classification turns on the substance of what is provided. Ownership of the underlying network is unnecessary. A service constitutes an ECS where the provider assumes responsibility for delivering the transmission element to the recipient. This includes circumstances where the provider resells connectivity or manages the end-to-end service on a customer’s behalf.
Examples of activities that typically constitute ECS provision include:
- broadband and internet access services;
- wholesale bandwidth, capacity or IP transit services;
- voice and messaging services, including VoIP;
- MVNOs and virtual ISP offerings;
- managed network services such as VPN, SD-WAN and SDN solutions; and
- cloud or platform services where the principal feature is connectivity rather than application functionality.
Where the transmission of signals is incidental to the primary purpose of a service, the activity is more likely to be an Information Society Service. This distinction has been clarified in judgments of the Court of Justice, including Skype (C-142/18), which confirmed that services providing connectivity to the public network are ECSs, and Gmail (C-193/18), in which the provision of email was held not to be an ECS because Google did not convey the underlying signals.
As with ECNs, the regulatory consequences depend on whether the ECS is offered privately or publicly. Under Ofcom’s charging guidelines, connectivity supplied to any non-related third party for remuneration is treated as a public ECS, irrespective of scale, and therefore becomes subject to the General Conditions and the Telecommunications (Security) Act.
Further guidance on is available in our Numbering and Code Powers pages.
Borderline and hybrid categories
Some services require detailed assessment because the classification depends on both technical functionality and user perception. The main consideration is whether the organisation provides the conveyance of signals for remuneration, either by operating the transmission layer directly or by assuming responsibility for its performance.
Examples of borderline or hybrid categories include:
- over-the-top communication platforms where the application layer sits above a third-party connectivity layer;
- co-location and data-centre services where transmission capability may be bundled with hosting or cross-connect arrangements;
- industrial or campus networks used both for internal operations and for connectivity supplied to tenants or other third parties;
- edge and virtualised environments where the transmission layer is software-defined; and
- cloud-based switching, routing or session-control platforms.
In each case, the analysis focuses on the substantive role played by the provider in the transmission path. If the decisive element of the service is the provision of connectivity, the activity is likely to constitute an ECS. If the connectivity is incidental to an application-layer service, it will more likely be treated as an ISS unless the activity falls within Ofcom’s public ECN/ECS framework because it is supplied to non-related third parties for remuneration.
This approach ensures that functionally similar services are treated consistently, irrespective of whether the underlying network infrastructure is physical, virtualised or provided through third-party arrangements.
Telecoms Security Act
The Telecommunications (Security) Act 2021 introduces statutory security duties for public ECN and ECS providers. These include governance, technical, vendor-management and incident-reporting obligations, and are supported by Ofcom inspection and enforcement powers.
More more details see our Security page.
Why regulatory status matters
The status of a network or service matters because
- Regulatory compliance: organisations within the scope of the rules must comply with the General Conditions and other statutory requirements.
- Commercial arrangements: regulatory status influences interconnection rights, access negotiations and contractual risk allocation.
- Transactions: ECN/ECS status is material to due diligence and deal structuring in infrastructure and digital-services transactions.
- Strategic opportunities: only regulated providers are eligible to apply for Code Powers and to be allocated numbers.
How Bratby Law can assist you
Bratby Law advises organisations on the application of the UK regulatory framework, including the classification of networks and services, the drafting and implementation of compliance frameworks and engagement with Ofcom. The firm also advises on interconnection, infrastructure deployment and transactions involving regulated assets.
Related Services
- Why Bratby Law? UK Telecoms Lawyers and AI Lawyers for Regulated Markets
- Services
- Telecoms Regulation Overview
- Transactions
- Co-counsel
- Fractional General Counsel
- Interconnection and Access
- General Conditions
- Security
- Code Powers
- Numbering
- Licence Fees
Request a regulatory assessment
Independent directory rankings
Our specialist expertise is recognised in major independent legal directories:
- Chambers & Partners: Rob Bratby is ranked in the UK Guide 2026 in the “Telecommunications” category: Chambers
- The Legal 500: Rob Bratby is listed as a “Leading Partner – Telecoms” in London (TMT – IT & Telecoms): The Legal 500
- Lexology: Rob Bratby is featured on Lexology’s expert profiles (Global Elite Thought Leader): Lexology
How does UK law determine whether a service is an Electronic Communications Service?
A service is an Electronic Communications Service where it consists wholly or mainly in the conveyance of signals over an Electronic Communications Network. The assessment is functional and depends on the provider’s substantive role in the transmission path, the technical configuration and how end-users understand the service.
What factors indicate that a service is an Information Society Service rather than an Electronic Communications Service?
A service is more likely to be an Information Society Service where the transmission of signals is incidental to its primary purpose and is delivered by a third-party network operator. This applies to most email platforms, content services and SaaS offerings unless the service provider materially controls the conveyance element.
What does the Skype (C-142/18) judgment say about the classification of SkypeOut?
In Skype (C-142/18), the Court of Justice held that SkypeOut was an Electronic Communications Service because users relied on Skype to deliver calls to the public switched telephone network. The Court focused on the substantive responsibility assumed by Skype for the transmission element.
What does the Gmail (C-193/18) judgment say about whether email services are ECS or ISS?
In Gmail (C-193/18), the Court of Justice held that Gmail was not an Electronic Communications Service because Google did not convey signals and the essential transmission component was performed by users’ internet access providers. The Court considered both functionality and the user’s perception of the service.
How does the distinction between private and public networks affect regulatory status?
A network or service is treated as public where it is made available to any non-related third party for remuneration. Ofcom’s Definition of Relevant Activity and Turnover guidelines confirm that public status does not depend on the scale of deployment or the number of customers. Internal-only networks remain private unless external users are served.
Does a provider need to own the physical network in order to be an ECS provider?
No. Ownership is not required. A provider may be an ECS provider where it resells or otherwise makes available connectivity supplied by another operator, provided it is responsible for the transmission element offered to its customers.
What obligations apply to organisations providing a public ECN or ECS?
Public ECN and ECS providers must comply with Ofcom’s General Conditions of Entitlement, which cover network functioning, numbering, switching, transparency, consumer information and complaints handling. They must also comply with the statutory security duties under the Telecommunications (Security) Act 2021.
Are over-the-top communication platforms regulated as ECS providers?
Over-the-top platforms are assessed according to their functional characteristics. They may fall outside the ECS definition where they rely entirely on third-party internet access providers for connectivity. They are more likely to constitute ECS where the provider assumes responsibility for delivering connectivity, uses numbering resources or interfaces directly with the public network.
How does the use of numbering resources influence whether a service is an ECS?
The use or allocation of public telephone numbers is a strong indicator that a service is an ECS. Numbers are issued only to providers subject to the General Conditions, so services using numbers are generally treated as public ECS offerings.
Can cloud-based or virtualised networking environments fall within the definition of an ECN?
Yes. The statutory definition is technology-neutral. Virtualised or software-defined environments may constitute an ECN where the operator controls or manages the transmission system or associated facilities.
When does a managed service become an Electronic Communications Service?
A managed service becomes an ECS where its principal characteristic is the conveyance of signals. This includes managed VPN, SD-WAN and similar offerings where the provider is responsible for end-to-end connectivity rather than merely delivering an application-layer function.
How are hybrid or multi-layer services assessed when determining ECS status?
Hybrid services are assessed according to their principal characteristic. If connectivity is decisive, the service is likely to be an ECS. If the application layer dominates and the transmission element is incidental, the service is more likely to be an ISS.
Does providing connectivity to tenants or affiliates make a network a public ECN?
In most cases, yes. Where connectivity is offered to non-related third parties for remuneration, Ofcom generally treats the network as public, irrespective of the number of customers. Internal-only corporate networks usually remain private unless external access is provided.
Does the supply of connectivity to a single customer make a network or service public?
Yes. Ofcom’s Definition of Relevant Activity and Turnover guidelines confirm that connectivity supplied to any non-related third party for remuneration is treated as a public ECN or ECS, even where the provider serves only one external customer. The distinction turns on the nature of the relationship, not the scale of the deployment.
Why does remuneration matter when deciding whether a network or service is public or private?
Remuneration indicates that connectivity is being supplied on a commercial basis to an external party, which brings the activity within Ofcom’s definition of public provision. The concept is used in both the Act and Ofcom’s charging guidelines. Internal, non-commercial communication within an undertaking does not constitute public provision.
