Can I install my eSIM before traveling?
Yes - setting it up before your trip is the easiest approach. Your confirmation email contains the QR code, a one-tap install link and the manual SM-DP+ / activation codes (the same options are also available via sign in > Profile > My eSIMs > Install). While on Wi-Fi at home, install it with the one-tap link on your phone, or - to use the QR - show it on another screen or a printout and scan it with the phone you are setting up (not another phone). Installing does not start your plan: the validity countdown only begins when the eSIM connects to a mobile network inside your plan's coverage area. Keep the eSIM line and its Data Roaming off until you are ready to start - if your plan covers the country you are in right now, turning the line on connects and starts the countdown immediately, even if you do not browse anything. Please note: once installed, an eSIM is considered used and is no longer eligible for a refund.
Is the eSIM connection secure?
eSIM connections are as secure as standard cellular connections - encrypted by the carrier network. For added security on public networks (cafes, airports), use a VPN. The eSIM profile itself is digitally signed and can't be cloned like a physical SIM.
How do I set up the eSIM on my device?
The fastest way is straight from your order confirmation email, which now contains - for each eSIM - the QR code, a one-tap install link, and the SM-DP+ / activation codes. On the phone you'll use, tap the one-tap install link; or, to use the QR, show it on another screen or a printout and scan it with that same phone (not another phone); or enter the codes manually. The email also has an "Install eSIM" button that opens your eSIM's detail page and launches the install pop-up (sign in if prompted), and you can reach the same pop-up anytime via Profile > My eSIMs > find your plan (shown as "Ready to install") > Install. After installing, turn Data Roaming ON for your eSIMno line (iPhone: Settings > Cellular; Android: Settings > Connections/Network) - without it the eSIM installs but shows no internet. Full guide in Help & Support.
How do I activate the United-states-unlimited eSIM?
Your eSIMno order confirmation email contains your QR code, your SM-DP+ address and activation code, a one-tap install link, and an "Install eSIM" button - so you can install right from the email. The same options are also on the website: sign in at esimno.com and go to Profile > My eSIMs > your plan > Install. To install, use any ONE of these methods: (1) on the phone you are setting up, tap the one-tap install link/button (iPhone on iOS 17.4+ or Android 9+); (2) use the QR code - because a phone cannot scan its own screen, show this QR on another screen (computer/tablet) or a printout and scan it WITH the phone you are setting up (never with someone else's phone, or the eSIM would install on that phone); or (3) enter the SM-DP+ address and activation code manually. Your United-states-unlimited eSIM activates automatically when you connect to a local network at your destination.
Does the eSIM work in rural areas and small towns?
Coverage depends on the partner network's reach in United-states-unlimited. Major cities, tourist areas, and highways typically have strong 4G/5G coverage. Remote rural areas may have weaker signal or fall back to 3G. Download offline maps before heading off the beaten path.
What should I do if I lose my activation QR code?
You can't really lose it - your QR code is in your order confirmation email, and also in the install pop-up on the website. To reopen it any time before activation, tap "Install eSIM" in your order email, or sign in at esimno.com and go to Profile > My eSIMs > Install. Both show the QR code together with the one-tap install link and the manual SM-DP+ / activation code. Note the install codes are one-time-use: once the eSIM is installed on a device they can't be reused - reopen the installer (My eSIMs > Install) to display a fresh QR if you need one.
What payment methods does eSIMno accept?
eSIMno accepts major credit and debit cards (Visa, Mastercard, American Express), PayPal, Apple Pay, and Google Pay. All transactions are processed through secure encrypted gateways, and we don't store full card details on our servers.
How do I delete an eSIM I no longer need?
On iPhone: Settings > Cellular > tap the eSIM line > Remove eSIM. On Android: Settings > Network & Internet > SIMs > tap the eSIM > Erase. Deleting the eSIM frees up a profile slot. Make sure you don't need it anymore - once deleted, you can't reinstall the same profile.
Will my home phone number receive calls while I use the eSIM?
Yes - if your home SIM stays installed and active, calls and SMS to your home number arrive normally. The eSIM only handles data; voice service stays on your home line. Just remember that incoming calls and texts to your home number while abroad may trigger roaming charges from your home carrier.
Can I use the eSIM for my smartwatch?
Some smartwatches (Apple Watch Cellular, Samsung Galaxy Watch LTE) support eSIM, but they typically require a plan from your home carrier rather than a travel eSIM. eSIMno plans are designed for phones and tablets - check device compatibility before purchase if you intend to use a wearable.
When should I set up my eSIM?
A Wi-Fi connection is required to install your eSIM, so we recommend setting it up before you leave home. Activation can happen later, either right before departure or after you land at your destination - but the initial QR scan needs Wi-Fi.
Can I switch the eSIM to a different phone after activation?
Generally no. Once an eSIM is activated on a device, it's tied to that device. If you switch phones, you'll need to install a new eSIM. Some carriers offer eSIM transfer features, but eSIMno plans don't currently support transfer between devices.
United States Unlimited / Washington Square Park 
