Who uses which masts?

There are four radio networks in the UK. Every value SIM you have heard of rides one of them. Check the host’s coverage map — not the brand’s logo — for Frome or anywhere else.

Checked September 2026.

If EE covers your street, BT Mobile, Plusnet Mobile and 1p Mobile usually do too. If Three is thin on the lane to Nunney, Smarty will be thin as well. That is the whole trick.

Travel eSIMs — Ubigi, Airalo, Holafly, Nomad, Saily, GigSky, Maya Mobile, Firsty — are different. They buy radio from local partners in each country. They do not sit on one UK host, and they do not replace a Frome home number.

EE

Often the safest rural and indoor bet. 5G is widely mapped.

O2

Virgin Media O2 radio. Priority extras stay on the O2 brand.

Vodafone

Own 5G in many towns. International brands often sit here.

Three

Data-friendly plans. Check rural pockets carefully.

Questions

The short version.

Does a cheaper brand have worse signal?

Not because it is cheaper. Signal follows the host. A cheap EE SIM and an EE contract use the same masts.

Do I get the host’s extras?

No. O2 Priority, Vodafone extras and EE extras stay with those brands. The MVNO sells the radio, not the club.

How do I check Frome?

Use the official EE, O2, Vodafone and Three checkers with a BA11 postcode. We list them on the Frome page.