One eSIM for the UK and France, With a Real Phone Number
Crossing the Channel Shouldn’t Mean Changing SIMs
London and Paris are just over two hours apart by train, and plenty of trips take in both. The awkward part is the phone. The UK left the EU’s roaming rules behind, so a plan that behaves perfectly in Paris can start charging the moment you step off at St Pancras, and a UK-only eSIM stops being useful the second you reach the Gare du Nord.
The simpler answer is one eSIM that treats both countries as home ground. Europe Number’s UK plans cover the UK, France and 45 other European countries on a single install, and they come with a real French +33 phone number that stays the same wherever you are. You set it up once before you fly, and the Channel stops being a connectivity border.
TL;DR
One eSIM, both countries: the UK plans work in the UK and France, plus 45 more European countries, with no swap at the border.
A real French number included: a genuine +33 mobile line with calls and SMS, active for 30 days, the same number in London and Paris.
France eSIM with a real +33 number
Unlimited calls and SMS, data included. QR code by email — active in minutes. Official Bouygues Telecom partner.
20GB · €22,90 ›30GB · €29,90 ›60GB · €34,90 ›
★ 5.0 on Google · 12 months to activate · 3-month refund guarantee
Sized for a real trip: 30GB covers most two-country itineraries; 60GB and 120GB suit longer stays, hotspotting or heavy video use.
Set up before you leave: the QR code arrives by email, so you land connected instead of hunting for Wi-Fi.
Why the UK and France Are Harder to Cover Than They Look
Inside the EU, “roam like at home” means a French or Spanish plan generally works across the bloc at domestic rates. The EU’s roaming rules stop at its borders, though, and the UK is now outside them. Some carriers still include the UK; others charge daily fees for it.
That leaves travellers from the US, Canada and Australia with three common options, none of them great:
Home carrier roaming. Easy, but daily passes add up quickly over a week or two, and fair-use caps can throttle you halfway through the trip.
Two separate eSIMs. One for the UK, one for France. It works, but it means two purchases, two installs, two data balances to watch and a switch to remember on the train.
A local SIM on arrival. Cheap data, but you lose the first hours of the trip finding a shop, and the number changes again when you cross the Channel.
A single eSIM that covers both countries removes all of that. Europe Number’s uk esim plans with a french number do exactly this. One plan, one balance, one number from your first tap in Heathrow to your last train out of Paris.
How One eSIM Covers Both Sides of the Channel
An eSIM is a digital SIM profile your phone downloads from a QR code. Most phones released in the last few years support it, including recent iPhones, Google Pixels and Samsung Galaxy models. Your physical SIM stays in place, so your home number can still receive calls and texts if you want it to.
Europe Number’s UK plans are multi-country by design. The data works on partner networks across the UK and France, then keeps working if the itinerary grows: a day trip to Brussels on the Eurostar, a weekend in Amsterdam or a ski week in the Alps. It is the same coverage as every europe esim with number in the range, so you don’t buy anything extra or change settings when you cross a border. The phone simply connects to the strongest local network.
What the French number adds
Every UK plan with a number includes a genuine French +33 mobile line, not a forwarding app or a virtual number that disappears when you close the app. It handles calls and SMS like any local line, which matters more on a two-country trip than people expect:
Bookings on both sides. Restaurants, tour operators and hotels in Paris often want a European number, and a +33 number reads as local. London venues accept it just as happily.
Europe eSIM with a real +33 number
One eSIM across 39 European destinations. Unlimited calls and SMS, data included. QR code by email — active in minutes.
20GB · €19,90 ›30GB · €29,90 ›60GB · €40,00 ›
★ 5.0 on Google · 12 months to activate · 3-month refund guarantee
App sign-ups and codes. Ride-hailing, food delivery, ticketing and scooter apps frequently send a one-time password by SMS. A European number receives these app verification codes without roaming surcharges.
One number to share. Give the same number to your Airbnb host in Paris and your hotel in London, and to the friends you’re meeting. Nobody has to update a contact halfway through the trip.
For banking and government services, keep using your existing home number. Banks tie security codes to the number registered to your identity, so a travel number isn’t the right tool for that job. Use Europe Number alongside your home line for everything else.
How Much Data Does a UK and France Trip Need?
Most people underestimate how much data a city trip uses. Maps run constantly, transit apps refresh in the background, and photos back up to the cloud every evening. Add a few video calls home and a week across two capitals can easily get through more than 15GB.
30GB is the size most UK-plan customers choose. It comfortably covers a one to two-week London and Paris itinerary with navigation, social media, streaming on the train and regular calls home.
60GB suits longer stays or anyone tethering a laptop to work remotely from a café in Le Marais or a co-working space in Shoreditch.
120GB is for heavy streamers, families sharing a hotspot, or trips that run the full 30 days across several countries.
All plans run for 30 days from activation, so two weeks in the UK followed by two weeks in France fits inside one plan.
Setting It Up Before You Fly
The best time to install your eSIM is at home, on Wi-Fi, a day or two before departure:
1. Buy and receive the QR code. It arrives by email straight after purchase.
2. Scan it in your phone’s settings. On iPhone, go to Settings, then Mobile Data, then Add eSIM. On Android, look under Network or Connections, then SIM manager.
3. Label the lines. Name the new line something like “Europe” so you can tell it apart from your home SIM.
4. Turn on data roaming for the Europe line when you land. Set it as your mobile data line and leave your home SIM on for calls if you need it.
When you take the Eurostar from London to Paris, there is nothing to do. The phone hands over from a UK network to a French one as the train comes out of the tunnel, and your number and data balance carry straight on. Booking onward trains in France? Here is how a +33 number helps with sncf connect tickets and delay alerts.
Who This Suits Best
First-time visitors doing the classic pairing. Five days in London, five in Paris, and a desire not to think about the phone at all.
Travellers from the US, Canada and Australia. Long-haul visitors usually land in one city, train to the other and fly home from there. One eSIM fits that shape exactly.
Students and remote workers. Anyone splitting time between the two cities gets a stable French number for apps and bookings, plus enough data to work from anywhere.
Multi-stop itineraries. If London and Paris are two stops on a longer European loop, the same plan covers Amsterdam, Barcelona, Rome and beyond. If you are still weighing up providers for a wider route, see europe esims with a phone number compared.
The Bottom Line
A London and Paris trip deserves one phone setup, not two. Europe Number’s UK plans cover both countries and 45 more on a single install, include a real French +33 number for bookings and app codes, and come in sizes that match how much you actually use. Install it before you leave, cross the Channel without touching your settings, and spend the trip on the trip. If you’re comparing options for a wider route, start with the full Europe range.
Frequently Asked Questions
Is there one eSIM that works in both the UK and France?
Yes. Europe Number’s UK plans cover the UK, France and 45 other European countries on a single eSIM, so you can travel between London and Paris without swapping SIMs or buying a second plan.
Do I get a UK phone number or a French phone number?
The plans include a real French +33 mobile number with calls and SMS. It works the same in the UK as in France, so you keep one number for the whole trip.
Will my eSIM keep working on the Eurostar between London and Paris?
Yes. The phone connects to a UK network before the tunnel and a French network after it. Your number and data balance carry on with nothing to change in your settings.
How much data do I need for a week in London and Paris?
30GB comfortably covers one to two weeks of maps, social media, streaming and video calls. Choose 60GB or 120GB for longer stays, remote work or sharing a hotspot.
Can I use the French number for app verification codes?
Yes, for one-time passwords and app verification codes from services like ride-hailing, food delivery, ticketing and booking apps. For banking and government services, keep using your home number.
When should I install the eSIM?
Install it at home on Wi-Fi a day or two before you fly. The QR code arrives by email after purchase, and the 30-day plan starts when you activate it.
