Already on eSIM — just load one more number.
Two kinds of eSIM: one with a US number for living, studying or an extended stay, and data-only cards for trips. Scan a QR code and you are online — no contract, no SSN, no US credit card.
Not sure your phone works? Send us the model and a person confirms it before you order.
Which eSIM do you need?
Not sure? Start from how you will use it.
You picked With a US number — You need a US number that stays with you
Prices are not published yet. Data allowances and prices are set per SKU, and nothing is charged before ordering opens.
Who buys this
Three things everyone going to the US actually asks about.
The first hour after landing
Ride-hailing, maps and a "made it" text home, right after the terminal. No Wi-Fi hunting and no queue at an airport kiosk.
You need a US number for paperwork
Opening a bank account, registering for school, booking a doctor, parcel notifications — many of them need a US mobile number that can receive texts.
Going home without losing the plan
$3 a month holds it: the unused months stay on your account, so you pick up where you left off instead of buying again.
Which one is yours
Two kinds of eSIM, three lines.
The dividing line is whether the card carries a US number — not how long you stay.
With a US number
You need a US number that stays with you
For living, studying or an extended stay in the US
- A US number that takes calls and receives texts
- The number you already use stays in the phone — both lines live at once
- Outside the US: free Wi-Fi Calling to answer; a roaming package if you stay off Wi-Fi
- Unlimited base data: it slows after the high-speed allowance, never cuts off, never bills extra
On a shorter trip but still need a local number? Take this one — the number is held for your plan period.
Price Coming soon
Data-only · local
You only need data, and you stay in one place
A single destination — a short stay, a trip, a business visit
- Data only — no phone number
- One trip, one destination
- Not for receiving texts or taking calls
Price Coming soon
Data-only · multi-country
You only need data, and you cross into more than one place
Multi-country trips and business travel — one card for the whole route
- Data only — no phone number
- One card across several countries or regions
- Not for receiving texts or taking calls
Price Coming soon
Picked the number line? Here is what happens when you leave the US.
In the US
Number, data and texts all work as normal.
Outside the US
Wi-Fi Calling is free — any Wi-Fi connection rings this US number. If you would rather not depend on Wi-Fi, add a roaming package.
Prices and data allowances are still being set, and follow each SKU. Nothing is charged before ordering opens.
US local mobile service is provided by ENC Mobile. Names, allowances and prices are indicative until ordering opens.
Add-on
Going home for a while? Keep the plan alive.
Keeping the plan alive while you visit home, $3 a month.
Months you've paid for don't expire. With Wi-Fi Calling you can still answer the US number from anywhere with Wi-Fi — back home or in another country — and pick up normally when you return.
Available as an add-on when ordering opens.
Network
The number line runs on the T-Mobile network.
The US local network is provided by ENC Mobile over the T-Mobile public network.
- 5G is concentrated in metro areas, so cities are faster
- Connects on its own after activation — no manual network selection
- Coverage follows the T-Mobile public network
- If signal is poor where you are, support will look into it with you
How it works
Three steps. You are online by the third.
Pick a plan
Order online. No SSN, no US credit card, no credit check.
Get the eSIM QR code
Delivered by email. You can also take a physical card, mailed free to a US address.
Scan, install, switch data roaming on
It connects to the T-Mobile network, and shares a hotspot with your laptop.
Your number stays as it is
The eSIM carries data; your physical card keeps taking calls and security codes.
Bank texts, WeChat login codes and courier calls all still land on the old number. On a dual-SIM phone both are live at once — no second handset.
Install it before you fly
Have the QR code before you leave, and you have signal the moment you power on.
No airport counter, no local ID registration, no borrowing someone's Wi-Fi to download a profile.
Scan to install
Used it up, paid no more
When the high-speed allowance runs out you slow down — you do not get charged.
At basic speed WeChat texts, maps and email still work; video struggles. No data overage is ever billed, so no surprise invoice.
Slowed down, still online — no extra charge
No contract
Pay monthly and simply stop when you are done.
No 24-month term, no early-termination fee. To keep the number while you are away, the $3-a-month hold is enough.
Auto-renew
Stop anytime — no early-termination fee
Device compatibility
Will it work on my phone?
Works
- Every iPhone XS/XR and later
- Galaxy S20 and newer flagships, plus Fold/Flip
- Pixel 3 and later
- Most Android flagships from 2021 on
Doesn't work
- Physical-SIM-only devices
- Carrier-locked handsets
- Some regional retail models ship without eSIM
For reference only. If you're unsure, send us the full model name and a person will confirm before you order.
Against the other ways
There are four realistic ways to get online in the US.
| Compare | DIDSMS US eSIM | Home-carrier roaming | A SIM bought in the US | A US carrier contract |
|---|---|---|---|---|
| Installable before you fly | Yes | Yes | No | No |
| Keep the number you have for codes | Yes (dual-SIM) | Yes | Not on a single-SIM phone | No |
| Needs an SSN or US credit | No | No | Usually not | Usually yes |
| Needs a US credit card | No | No | Depends on the store | Usually yes |
| Contract length | None | None | None | Typically 24–36 months |
| What happens when data runs out | Slows, stays online, costs nothing extra | Pay-as-you-go, easy to overshoot | Needs topping up | Overage charges are high |
| Time to get started | About 3 min | Contact support beforehand | Queue in store + swap cards | In-store ID and credit check |
Public rates in the three right-hand columns change often. Before launch, fill them from current published pricing and note the date checked — until then they stay blank rather than guessed.
Other destinations
Other destinations — not open yet
Phase 1 is US only. Canada, Mexico, Europe, Japan, Korea, South-East Asia and Australia are on the roadmap; the order depends on when upstream supply lands, and we won't announce dates we can't hold.
What you can buy is what this page lists. If your destination isn't here, it isn't open.
If you need business numbers rather than data, that is DIDSMS Voice's range — US direct-dial numbers on an IP PBX.
Notify me when it opens
Leave an email and a destination — you'll be the first to hear when it opens.
FAQ
Nine questions people ask before ordering.
Can I buy and install it before I leave?
Yes. The QR code arrives as soon as you order, and installing early starts nothing — the plan begins at its first US network connection.
Do I need an SSN, a US credit card or a credit check?
None of the three.
Do I keep my current number? Can it still receive bank and WeChat codes?
Yes. The eSIM adds a line — leave your physical card in and texts and codes arrive as normal.
What happens when the high-speed data runs out?
You drop to basic speed and stay online, with no extra charge. WeChat texts and maps work at that speed; video struggles.
Can I tether my laptop?
Yes — hotspot data is not capped separately.
Is 5G supported?
It depends on local coverage. There is no 5G surcharge.
Do I keep the number and the plan when I go home?
Two options: $3 a month holds the remaining months, or stop and buy again next trip. Once a number is released we can't guarantee you'll get it back.
Which phones are supported?
iPhone XS and later, Galaxy S20 and later, Pixel 3 and later, and most Android flagships since 2021. The handset must not be carrier-locked.
How do refunds work?
Refunds and disputes follow the terms of service, published alongside this page.
Start with one month and change it if it does not fit.
Plans are monthly with no contract. If something's wrong, support answers — a person, not a bot.