Before you start

An unlocked handset, or an eSIM-capable one
A UK address, for a contract
A UK bank account, for a contract Direct Debit

Step-by-step

1
Buy a pay-as-you-go SIM or activate an eSIM on arrival
Available from supermarkets, phone shops and online, with no identity registration required. A UK number in your first hour unlocks bank verification, appointment systems and delivery notifications.
In personWho: YouDay 1
2
Do not attempt a 24-month contract in your first weeks
Contracts run a credit check and require a UK bank account and address. With no UK credit file you will be declined or asked for a large deposit. Rolling one-month SIM-only plans have no credit check and are excellent value.
OnlineWho: You
3
Use a rolling SIM-only plan rather than a handset contract
SIM-only plans with generous data cost a fraction of a bundled handset contract, have no minimum term, and can be switched monthly. Buying a handset outright and taking a SIM-only plan is almost always cheaper than a two-year bundle.
OnlineWho: You
4
Keep your number when you switch
Text PAC to 65075 and you receive a porting authorisation code by return, valid for 30 days. Switching networks while keeping your number takes one working day by law. Never cancel first.
Mobile appWho: You
5
Sort home broadband early and check for altnets
UK installation typically takes one to three weeks and may need an engineer visit. Bristol has more independent fibre network competition than most English cities, so several addresses have a genuine choice of infrastructure rather than only of reseller. Check your exact postcode against more than one provider before signing.
OnlineWho: You
6
Expect patchy signal in the gorge and the valleys
Bristol's topography is unusually severe for an English city, and the Avon Gorge, the harbourside cuttings and the steeper valley streets create genuine coverage shadows. Signal in Clifton Village and signal at the bottom of the gorge are different propositions on some networks.
OnlineWho: You

Documents you’ll need

Nothing at all for pay-as-you-go
UK address and bank details, for a contract
Passport, occasionally requested for a contract

Things most newcomers don’t know

The UK has no SIM registration, unlike most of Europe.

Germany, Spain and France all require identity verification to activate a SIM. The UK requires nothing for pay-as-you-go — you can buy one in a supermarket and use it in the car park. For a newcomer this removes one of the most common first-week frustrations elsewhere.

Source: Ofcom

Text PAC to 65075 — switching keeps your number in one working day.

Ofcom rules require networks to issue a porting authorisation code by text on request and to complete the switch within one working day. You never cancel the old service first. Most people do not know the shortcode and stay on a bad tariff for years.

Source: Ofcom — switching mobile provider

Bristol's hills create real coverage shadows within the city.

Most English cities are flat enough that urban coverage is uniform. Bristol is not — the Avon Gorge is a 75-metre limestone canyon and the city climbs steeply out of the harbour in several directions. Signal that is fine in Clifton can be poor three minutes downhill. If you can, test the network at the actual address before committing to a plan.

Source: Ofcom — mobile coverage checker

Rolling SIM-only plans are dramatically better value than handset contracts.

A two-year bundled handset contract typically costs far more in total than buying the phone outright and taking a rolling SIM-only plan, and it locks you in with no credit-check advantage. For a newcomer with no UK credit file, the SIM-only route also avoids being declined outright.

Source: community-reported

Common mistakes to avoid

Signing a 24-month handset contract in your first weeks and being declined or overcharged.
Cancelling your old service before requesting a PAC code, and losing the number.
Choosing a network without testing signal at the actual address in a hilly city.
Taking the first broadband offer without checking which altnets serve the postcode.
Not knowing that pay-as-you-go requires no identity check at all.

Some of this may be out of date. Spotted something inaccurate? Help us keep it right for the next newcomer.