Prepaid data for the United States, ready before you land. Install it at home, switch it on at the gate, and skip both the roaming day pass and the queue at a carrier store.
The USA plan covers USA only.
The same 10 GB in a package that keeps working past USA.
1 other country shares the package with USA. A few of them:
What's included, when it starts, and how to get connected.
Immigration takes longer here than almost anywhere else, and nothing about the airport assumes you have a working phone. Both are easier to plan around than to improvise.
If you travel under the Visa Waiver Program, apply for ESTA on the official government site at least 72 hours before departure — the fee has changed recently, so check the current amount, and ignore the agencies that charge several times more. Install your onesim eSIM over Wi-Fi and leave the line switched off.
Allow 45 to 90 minutes at the large gateways at peak times. Most visitors are photographed and fingerprinted. Have your address for the first night written down — you will be asked for it, and "a hotel" is not an answer.
Open Settings → Mobile Data, select the onesim line for mobile data, and turn data roaming on for that line only. Keep your home SIM in the phone with its data roaming off, so your own number still receives calls and texts.
Almost every major airport has a rail or bus link that costs a fraction of the taxi. JFK has the AirTrain to the subway and the LIRR; O’Hare and Midway are on the Chicago "L"; SFO and Boston are on the metro. Rideshare pick-up is usually on a different level from the taxi rank, and signed separately.
Sales tax is added at the register and varies by state and city — from nothing in Oregon and Delaware to nearly 10% in parts of California and New York. Tipping is 18–20% in a sit-down restaurant, a dollar or two a drink at a bar, and 15–20% for a taxi. A $22 plate and a $14 cocktail is a $45 dinner.
Los Angeles to San Francisco is a six-hour drive. New York to Miami is nineteen. Domestic flights are usually cheaper than the equivalent European train, and Amtrak is scenic rather than fast outside the north-east corridor.
That covers maps, rideshares, restaurant waitlists and everything else a visitor actually needs. What it does not do is receive an American SMS — so if a service insists on texting a US number, keep your own line reachable and use an authenticator app where you can.
Urban and interstate coverage is strong. National parks are a different country: Yellowstone, Big Bend and much of Utah have long stretches with no signal on any network. Download offline maps for a park before you drive into it.
Answers about data, coverage and setup for USA.
Coverage follows the local networks wherever they reach — cities, transport corridors and most rural areas. Remote mountain and island areas can have weaker signal on any carrier.
No. onesim is installed before you travel, with nothing to register when you land. Turn on the onesim line for mobile data and you are connected.
Installing the eSIM does not start the clock. Your package starts the first time the eSIM connects to a network in a country it covers, even while mobile data is off. Install at home over Wi-Fi and keep the onesim line switched off until you arrive; if your home country is covered too, the package would start the moment the line connects there.
Yes. Your account has one onesim eSIM, and you refill it with any regional package from anywhere in the world — from the website or the app. The new package is added to the eSIM already on your phone; there is nothing to install again.
