Your data is expensive, and your phone number is the problem.

Your data works. Maps load, messages come through, everything looks fine.

Then you try to order dinner and the delivery app wants to send a code to your phone before it will take the order. Or the rideshare app asks to verify your number before it will let you book a car. Or you have something sent to the hotel and the courier cannot reach you to say they are downstairs.

That is the gap most travel eSIMs leave open, because most of them sell data and nothing else.

What your own carrier charges to come along

Verizon's TravelPass runs $12 a day outside Mexico and Canada. AT&T's International Day Pass is $10 per line, per day. Two weeks in Europe on Verizon comes to $168 for one phone. For a family of four, the same trip is $672.

Skip the day pass and the pay as you go rates take over. Verizon publishes international data at $2.05 per megabyte. That is not a misprint. One gigabyte at that rate is more than two thousand dollars. Calls run $1.79 a minute across 130 countries and $2.99 a minute in another 80. Texts you send cost 50 cents each.

Almost nobody chooses those rates on purpose. They forget to switch something off, or they assume the plan covers it, and they find out when the statement arrives.

The airport kiosk is not a rescue

The counter past baggage claim knows exactly when you are standing in front of it. You have just landed, you are tired, you have no service, and you want the problem gone. That is the worst possible moment to compare prices.

Airport SIM stands routinely sell the same plan for several times what a carrier store in town charges. Beyond simple markup, travellers report packages that quietly deliver a fraction of the advertised data, "unlimited" plans that turn out to be throttled after a day or two, validity periods that expire early, and cards that never register on the network at all. By the time any of that surfaces, you are three cities away and the receipt is worthless.

Even an honest kiosk costs you the same forty minutes: find the counter, show your passport, wait, swap the tray, hope it works.

You keep your own number

This is the part people get wrong about eSIM, and it is the reason a lot of travellers never try one.

You are not replacing your phone service. Every recent iPhone and Android flagship runs a physical SIM and an eSIM at the same time, or two eSIMs at once. Your home number stays active and reachable. The travel line sits next to it and carries your data and your local calls.

Your family can still ring your usual number. Your work messages still arrive. Nothing gets cancelled, nothing gets forwarded, and nothing needs undoing when you get back.

A real number, not an internet one

Most travel plans that do offer a number hand you a VoIP line. It looks like a phone number and it works for ordinary calls, so the difference seems academic until it is not.

Carriers publish the line type behind every number, and fraud systems read it. Plenty of rideshare apps, food delivery services, courier companies and ordinary account signups refuse to send verification codes to VoIP lines, because that is where a lot of fraud comes from. Sometimes you get a clear error. More often nothing happens at all: you tap "send code", the spinner turns, and no message ever comes. There is nothing to troubleshoot because the message was never sent.

Our plans carry a carrier issued French mobile number, the same kind of line a resident in Paris would have. It receives calls and texts in every country the plan covers, not only in France. When the delivery app sends a code, it arrives. When the driver calls to ask which entrance you are at, the phone rings.

Buy it now, start it when you land

The plan clock does not begin when you pay. It begins the first time your phone connects to a network in a country the plan covers.

So you can buy weeks ahead, install it on the sofa at home where the wifi is good and you have time to read the screen, and forget about it. Nothing counts down while it sits there. You land, the phone finds a network, and the plan starts then.

That also removes the part of the trip most people quietly dread. You walk off the plane already connected, with maps and messages working before you reach passport control.

Installing it

Buy the plan and a QR code arrives by email. On an iPhone, open the camera, point it at the code, and tap the prompt. On Android, it lives under network settings. Either way it takes a couple of minutes and no tools, no tray pin, no shop, and no passport photocopy.

Do it before you fly, while you are somewhere with steady wifi.

What we are not going to pretend

An eSIM installs once. The QR code works a single time, on one phone. If you scan it and then decide to use a different handset, that code is spent. Install it on the phone you are actually taking.

The number is French, and it will look French to anyone who sees it. Calls and texts reach you anywhere the plan covers, but a friend saving your contact will see a +33 number.

And if all you need is data, you do not need a number at all. Our data only plans are cheaper, and we would rather sell you the right one than the expensive one. However, our plans with a phone number are still cheaper than data-only plans from other providers.

What it costs

Holiday Europe 20GB is $20.51. That covers 31 days across 42 countries with 20GB of data, 30 minutes of calls, 200 texts, and a real phone number. 31 days. It's just easier for us to just make all of our plans 31 days, but we do have small 7 day data-only plans and a really big 90-day Europe plan.

Holiday World is $31.31, with 20GB and a number that works across 248 destinations.

Two weeks of Verizon TravelPass for one phone is $168. The same fortnight on a LineCast plan with a working number is a fraction of that, and it starts when you land.