eSIM-Now.com
日本語
アメリカ合衆国のeSIMを数分で入手
メールで即時配信。QRコードを1つスキャンするだけで、アメリカ合衆国に着いた瞬間にオンライン。店舗もSIM交換もローミング料金も不要です。
- 即時配信 — 数分で使える
- 低価格、隠れた手数料なし
- 返金保証
- 電話番号はそのまま — SIM交換不要
最終更新: 2026-10-08
Short answer
Yes, as a tourist you can get a prepaid eSIM for the USA that runs for a week, a month, three months or six months. You pay once, get a QR code by email within minutes, and use the Verizon and AT&T networks. No contract, no store visit, no US address.
- Instant: buy and install before you fly, online the moment you land
- Prepaid: pay once, nothing renews automatically
- Big networks: Verizon and AT&T, 5G where available, otherwise 4G
- Any length of stay: up to a month, 20 GB for 90 days, or 50 GB for 180 days
- Top-ups anytime when the data runs low
Which plan for how long?
| Your trip | Plan | Where to find it |
|---|---|---|
| 1–2 weeks | 1–10 GB | USA plans page |
| 1 month | 5–50 GB (30 days) | USA plans page |
| Up to 3 months | 20 GB / 90 days | Buy the 90-day plan |
| Up to 6 months | 50 GB / 180 days | Buy the 180-day plan |
The country page shows the 1–50 GB plans with current prices and validity. The 90-day and 180-day plans are not listed there, so use the direct links above. If you run low on data before the end of your stay, top up instead of buying a new eSIM.
One month in the US? A 30-day plan with 10 or 20 GB suits most visitors who have Wi-Fi at the hotel. If you navigate, stream or use a hotspot all day, go for 50 GB.
Prepaid eSIM vs a US carrier prepaid plan
T-Mobile, AT&T, Verizon and their prepaid brands all sell prepaid plans that tourists can use. The main differences are what you get and how you set it up:
| eSIM-Now prepaid eSIM | US carrier prepaid plan | |
|---|---|---|
| Setup | Online before you fly, QR code by email | In a store after you land, or online through the carrier's app |
| US phone number | No, data only | Yes, with US calls and texts |
| Billing | Pay once per package | Usually monthly, and some plans renew automatically unless you cancel |
| Length | 7 days to 180 days | Mostly monthly, a few carriers have short tourist plans |
| Networks | Verizon and AT&T | The carrier you choose |
| Long stays | Fine for weeks to several months | Usually cheaper if you stay for a long time |
Where the carrier plan wins: you get a US number, which helps if you need to receive texts from US banks, landlords or ride apps that only accept US numbers, or call US businesses a lot. Over many months it is usually cheaper too.
Where the prepaid eSIM wins: no store visit after a long flight, no account, no monthly billing to cancel. It is installed before you leave, so you can order a ride or text your host as soon as the plane lands.
What you get
The eSIM is a data plan, and for most tourists that covers it. Your home number stays active on your normal SIM, so calls and SMS codes from your bank still reach you. Everything that runs over the internet works on the eSIM:
- WhatsApp, Signal and Telegram with your existing account, including voice and video calls
- FaceTime and iMessage on iPhone
- Maps, ride apps, banking apps, email and streaming
- Hotspot for your laptop or tablet
Before you buy
Your phone needs to support eSIM and be carrier-unlocked, which covers most iPhones from the XS on and many recent Android phones. Check the list of eSIM-compatible phones, then follow the iPhone or Android setup guide.
Ready to go? All plans are on the USA plans page.
eSIM-Now.com