thurlowvance
Independent · United Kingdom networks · nothing for sale
Advice line020 3807 7759 This number is for guidance and information only. We sell nothing, arrange nothing and act for no network. Ring it if any part of these notes leaves you unsure.
Topic notes

The market

Four companies own the masts and everybody else rents from them — the single fact that explains most of the confusion in British mobile.

Written July 2026 · no prices published · nothing for sale

Read this first

How we are placed. thurlowvance is an independent information service for mobile customers in the United Kingdom. We are not a mobile network. We have no affiliation with, endorsement from, appointment by or connection to Three, EE, O2, Vodafone, Sky Mobile, Tesco Mobile or any other provider, and no commercial arrangement with any of them. We do not sell, supply, arrange or broker SIM cards, contracts, handsets or services of any kind, and we take no commission from anybody. Everything here is general information; a provider's own current terms always take precedence.
Note 01

The four owners

OwnerWhere it came from
EEBuilt in 2010 by merging Orange and T-Mobile; launched Britain's first 4G in 2012; owned by BT Group
O2Began as BT Cellnet; renamed in 2002; half of Virgin Media O2 since 2021
ThreeOpened in 2003 as the data-first newcomer; half of VodafoneThree since June 2025
VodafoneAmong the oldest in the market; the other half of that 2025 merger
Note 02

Why there are a dozen brands

Companies without masts buy capacity wholesale and resell identical radio waves under their own name. That is the entire arrangement, and understanding it removes most of the confusion in this market.

OwnerBrands renting its signal
EE1pMobile
O2Tesco Mobile, giffgaff, Sky Mobile
ThreeSMARTY, iD Mobile
VodafoneVOXI, Lebara

Coverage questions belong to whoever owns the masts. Complaints belong to whoever sends the bill. Getting those two the wrong way round wastes an enormous amount of people's time.

Note 03

The generations, and why they still matter

  1. 3G has gone — two networks switched it off during 2024, one during 2025.
  2. Voice calls now travel over 4G, so 4G Calling must be enabled on every handset.
  3. Where a phone cannot support that, it has reached the end of its life on any UK network.
  4. 5G is widely deployed but mostly leans on 4G underneath.
  5. Standalone 5G runs on its own modern core — faster where live, still the smallest layer.
Note 04

The June 2025 merger

June 2025 combined two of the four owners into the largest operator in Britain by customer numbers, with substantial money committed to merging the two mast estates.

For customers the practical consequence is that coverage at any given address is less settled than usual. An address that failed a year ago may pass now — which makes an annual re-check genuinely worth doing.

Worth knowingThe merger also produced a persistent scam claiming plans must be 'migrated'. No such process exists on either brand. Anything genuinely contractual arrives in writing.

Still unsure after reading these notes?

Ring us and we will go through it with you. Nothing is offered for sale at any point.

020 3807 7759This number is for guidance and information only. We sell nothing, arrange nothing and act for no network. Ring it if any part of these notes leaves you unsure.
How we are placed. thurlowvance is an independent information service for mobile customers in the United Kingdom. We are not a mobile network. We have no affiliation with, endorsement from, appointment by or connection to Three, EE, O2, Vodafone, Sky Mobile, Tesco Mobile or any other provider, and no commercial arrangement with any of them. We do not sell, supply, arrange or broker SIM cards, contracts, handsets or services of any kind, and we take no commission from anybody. Everything here is general information; a provider's own current terms always take precedence.

Ring us if these notes do not cover it

We hold no arrangement with any network, take no commission and sell nothing at all. If your question is not answered here, telephone and ask.

020 3807 7759Guidance and information only. We sell nothing and act for no network.

How we are placed. thurlowvance is an independent information service for mobile customers in the United Kingdom. We are not a mobile network. We have no affiliation with, endorsement from, appointment by or connection to Three, EE, O2, Vodafone, Sky Mobile, Tesco Mobile or any other provider, and no commercial arrangement with any of them. We do not sell, supply, arrange or broker SIM cards, contracts, handsets or services of any kind, and we take no commission from anybody. Everything here is general information; a provider's own current terms always take precedence.

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