What Is an MVNO (Mobile Virtual Network Operator)?

What is an MVNO?

The UK's mobile services run on three core networks: EE, O2, and VodafoneThree (formed by the merger of Vodafone and Three in June 2025). These networks own and maintain the physical infrastructure, including masts, spectrum licences, and core network equipment.

An MVNO purchases wholesale access to one of these networks and resells mobile services to its own customers. Because the MVNO uses the same underlying infrastructure, its customers receive the same coverage and signal quality as they would if they were on the parent network directly.

MVNOs set their own retail prices independently. Because they do not bear the cost of building or maintaining a network, they can often offer lower prices than the parent network for equivalent coverage.

UK MVNOs and which network they use

Here are the main MVNOs listed on SIM Only Finder, along with the network each one runs on:

EE network: 1pMobile, Grade Mobile, Lycamobile, Mozillion, Spusu, Talk Home

O2 network: Giffgaff, Sky Mobile, Tesco Mobile

VodafoneThree network: Asda Mobile, Honest Mobile, iD Mobile, Smarty, Talkmobile, Voxi

Vodafone network: Lebara

You can browse all networks on SIM Only Finder to compare current deals.

How does an MVNO differ from a mobile network operator?

A mobile network operator owns and manages its own end-to-end infrastructure. In the UK, EE, O2, and VodafoneThree each own their own spectrum licences, masts, and core network equipment. They are responsible for coverage, capacity, and network maintenance.

An MVNO does not own a radio network. It buys access to a network operator's spectrum and infrastructure at wholesale rates and handles its own branding, billing, customer service, and sales. Some MVNOs also operate their own core network, while others rely entirely on the parent network's systems.

The practical difference for customers is minimal on coverage. An MVNO customer gets the same signal as a direct customer of the parent network. The differences show up in pricing, plan structures, customer service, and any additional features the MVNO does or does not include.

Advantages of using an MVNO

The main advantage is price. Because MVNOs do not carry the cost of building or maintaining a network, they are often able to offer cheaper monthly plans than the parent network for the same coverage. This is particularly noticeable on SIM-only deals, where the absence of a handset already reduces costs significantly.

MVNOs also tend to offer more flexible contract options. Many run entirely on 30-day rolling plans with no long-term commitment, making it straightforward to switch if your needs change. Several MVNOs have also committed to no annual price rises, which is less common among the main network operators.

The trade-off is that certain benefits tied to the parent network are not available through an MVNO. O2 Priority rewards, EE's included subscriptions, and other network-specific perks are generally only available if you are a direct customer of that network.

Do MVNOs offer the same coverage as the parent network?

Yes. An MVNO customer connects to the same masts and uses the same spectrum as a direct customer of the parent network. If EE has strong signal in your area, any MVNO running on EE will have the same signal. Coverage is determined by the underlying network, not the MVNO.

One exception worth noting: some MVNOs do not yet have access to the full combined VodafoneThree network following the merger. Access to the merged infrastructure is being rolled out gradually, so check with individual networks if this is relevant to you.

FAQs

Is an MVNO less reliable than a main network?

Not in terms of coverage or signal. Both use the same underlying infrastructure. Differences may appear in customer service response times or specific plan features, but the network connection itself is equivalent.

Can I keep my number when switching to an MVNO?

Yes. Text PAC to 65075 to get a free PAC code from your current provider. Give it to your new MVNO when you sign up and your number transfers automatically, usually within one working day.

Are MVNO plans subject to annual price rises?

It varies. Several MVNOs, including spusu and Lycamobile, have committed to no annual price rises. Others apply fixed increases each April. See our guide to SIM-only mid-contract price rises for a full breakdown.