What is an SM-DP+ Address? Everything You Need to Know to Activate Your eSIM
If you’ve ever tried to activate an eSIM and saw a message asking for an “SM-DP+ address,” you might have paused and thought, “What is that?” Don’t worry — you’re not alone. While the name sounds technical, the concept is simple and essential for getting your eSIM up and running.
In this article, we’ll walk you through everything you need to know about SM-DP+ addresses: what they are, how they work, when to use them, and how to activate your eSIM manually when needed. Whether you're preparing for a trip to Europe or the United States, this guide will help you stay connected smoothly.
What is an SM-DP+ Address?
SM-DP+ stands for “Subscription Manager Data Preparation Plus.” It’s the server address that your device connects to in order to download your eSIM profile. Think of it as the digital delivery point where your mobile plan gets pushed to your phone.
Unlike a physical SIM card that comes with all the info pre-installed, an eSIM needs to download that info securely. And that download starts by contacting the SM-DP+ server.
How Does the SM-DP+ Address Work?
When you scan your eSIM QR code or enter details manually, your device reaches out to the SM-DP+ server. The server confirms your identity, delivers your mobile profile, and stores it in your phone’s eUICC — a small chip that holds eSIMs.
After installation, your phone can connect to the cellular network and start using your data, calls, or texts — whether it’s for everyday use or travel with something like our eSIM for all Europe or eSIM for USA.
Why Is It Important?
Your phone won’t be able to use the eSIM without this step. The SM-DP+ address is the key to securely installing and activating your mobile subscription. Without it, you’d be left with a plan you can’t access — and no way to connect.
This is especially crucial if you're traveling internationally and need quick, reliable setup. Whether you're landing in Paris or New York, you'll want your eSIM to just work — no delays, no complications.
When You Might Need to Enter It Manually
Most of the time, you won’t have to deal with this address directly. It’s included automatically in the QR code you scan when installing your eSIM. But sometimes things don’t go as planned.
You might need to enter the SM-DP+ address manually if:
- You didn’t receive a QR code with your eSIM purchase
- The QR code doesn’t scan properly
- You deleted your eSIM profile and want to reinstall it
- Your phone or tablet only allows manual eSIM entry
In these cases, your provider will give you both the SM-DP+ address and activation code so you can finish the process yourself.
How to Manually Activate an eSIM
If you need to enter the SM-DP+ address manually, here’s how to do it depending on your device.
For iPhone:
- Open Settings > Cellular (or Mobile Data)
- Tap “Add eSIM” or “Add Cellular Plan”
- Select “Enter Details Manually”
- Type in the SM-DP+ address and activation code
- Follow the prompts to complete setup
For Android:
- Go to Settings > Network & Internet
- Tap “SIMs” or “Mobile Network”
- Tap “Add eSIM”
- Choose “Enter Details Manually”
- Enter the SM-DP+ address and activation code
- Confirm and activate
Before you begin, double-check that your phone is compatible. Not all devices support eSIMs. You can see our full list of compatible devices to be sure.
Common Troubleshooting Tips
If your eSIM isn’t activating, here are a few things to try:
- Check the SM-DP+ address and activation code for typos
- Make sure your phone is unlocked and eSIM-compatible
- Ensure you have a working internet connection (Wi-Fi or data)
- Restart your phone before trying again
- Fully delete any previously failed eSIM attempts
If none of these work, contact your eSIM provider’s support team and share your device model and any error messages.
Why eSIMs Are a Game Changer for Travel
One of the biggest advantages of using an eSIM is how easy it makes traveling. You no longer need to hunt for a local SIM card, wait in line at airport kiosks, or pay expensive roaming fees. With eSIM, you get online within minutes of landing — no matter where you are.
Going on a Eurotrip? Stay connected with our eSIM for all Europe.
Visiting the U.S.? The eSIM for USA keeps you connected coast-to-coast.
Not sure where you're headed yet? You can explore all available destinations through our View Destinations page and find the perfect plan for your journey.
Can I Use the Same eSIM on Another Device?
Not always. If you change or reset your phone, the eSIM profile might not transfer automatically. Some providers allow you to reuse the same code, but others require a fresh setup. Always save your activation details and request a new QR code if needed.
Manual installation with the SM-DP+ address can be helpful when transferring eSIMs to a new phone or reinstalling after a reset.
Final Thoughts
The SM-DP+ address may seem like a technical detail, but it’s a key part of activating your eSIM. Understanding how it works can save you time and frustration, especially if you’re traveling or using a new device.
Next time you see the term “SM-DP+ address,” you’ll know it’s just the behind-the-scenes tool that helps your phone connect to your plan.
Before you buy, check if your device supports eSIM via our compatible devices page. And when you're ready to explore the world, don’t forget to browse our View Destinations page to find the best data plans for your trip.