How to Keep Your US Phone Number While in Europe

To keep your US phone number while in Europe, the most effective strategy is to enable WiFi Calling on your primary SIM and use a secondary data-only eSIM for internet access. This dual-SIM configuration allows your phone to route calls and texts through the data connection of the eSIM, effectively bypassing expensive international roaming charges from your home carrier.

Traveling across the Atlantic for a multi-country European tour is an exhilarating experience, whether you are navigating the Eurail network or hopping between cities on budget flights. However, the prospect of losing access to your primary American phone number—and the two-factor authentication codes, bank alerts, and family group chats that come with it—can be a major source of stress. Fortunately, modern smartphone technology has made it possible to stay connected to your home life while enjoying the 5G networks of Europe without breaking the bank.

The Problem with Traditional Roaming

For years, American travelers had two main choices: pay their home carrier a premium for an international pass or swap their physical SIM card for a local one. Major US providers often charge around $10 per day for international roaming. On a three-week tour through France, Italy, and Germany, these costs can quickly spiral toward $210, which is a significant portion of a travel budget that could be better spent on a Tivoli Day Trip from Rome: Villa d’Este Guide.

While these carrier passes are convenient, they are often throttled after a small amount of high-speed data. Furthermore, if you choose to buy a local SIM card at a kiosk in an airport like Paris Charles de Gaulle (CDG) or Rome Fiumicino (FCO), you physically remove your US SIM card. This means your US number is completely offline, making it impossible to receive SMS verification codes from your bank or work email.

The Dual-SIM Solution with EuroHop eSIM

The most modern and cost-effective approach is the dual-SIM strategy. Most iPhones (from the XS model onwards) and modern Android devices support having two active lines at once. By using a regional data-only plan from EuroHop eSIM, you can keep your US SIM active for calls and texts while using the eSIM for all your data needs. see plans

How WiFi Calling Works Abroad

The "secret sauce" to keeping your US number active is a feature called WiFi Calling. When enabled, your phone treats any data connection—including the data from a secondary eSIM—as a "WiFi" network. This allows your US carrier to route calls and texts to your phone over the internet.

To make this work, you must ensure WiFi Calling is turned on in your phone settings before you leave the United States. Once you land in Europe and activate your EuroHop eSIM, your phone will display "US Carrier over Cellular Data" or a similar status. This means you can call your parents in the US or receive a text from your credit card company as if you were sitting in your living room in Chicago or New York.

Coverage and Local Carriers in Europe

One of the biggest advantages of a regional eSIM is the ability to switch between top-tier networks as you cross borders. Unlike a single local SIM that might only work well in one country, a EuroHop eSIM provides access to 34 countries, including non-EU destinations like Switzerland and the United Kingdom. This is essential for travelers taking the train from Italy into the Swiss Alps or flying from Spain to London.

EuroHop eSIM connects to premium 5G networks across the continent, including:

• France: Orange and Bouygues
• United Kingdom: Vodafone and O2
• Germany: Vodafone and O2
• Italy: Vodafone and WindTre
• Belgium: Proximus and Base
• Scandinavia: Tele2 and TDC
• Central Europe: A1 and Vivacom

In major cities like Paris or Rome, you can expect robust 5G coverage, perfect for looking up the Rome Coffee Culture: How to Order Like a Local while standing in a busy piazza. However, when traveling through rural areas or on high-speed trains like the TGV or Frecciarossa, coverage can naturally dip. Having an eSIM that can jump between different providers ensures you maintain a signal even when one carrier's tower is out of reach.

Choosing the Right Data Plan

When selecting a plan, consider your itinerary and data habits. EuroHop eSIM offers various fixed plans ranging from 1GB for short trips to 50GB for long-term digital nomads. For those who don't want to count gigabytes, daily passes are available in increments like 1GB, 2GB, or 3GB per day.

Activity	Estimated Data Usage
Google Maps Navigation	20MB per hour
WhatsApp Messaging	1MB per 100 messages
Social Media Scrolling	150MB per 10 minutes
Streaming Music	100MB per hour
Video Calls	500MB+ per hour

If you are primarily using your phone for navigation and occasional social media updates, a 10GB or 20GB plan for a 30-day trip is usually sufficient. Remember that these are data-only plans; they do not come with a local European phone number. However, you can still use WhatsApp, iMessage, and FaceTime with your existing US number.

Step-by-Step Installation

Setting up your connection is simple and can be done before you even board your flight. You can check your device compatibility to ensure your phone is unlocked and supports eSIM technology.

For iPhone Users

1. Go to Settings > Cellular > Add eSIM.
2. Scan the QR code provided by EuroHop eSIM.
3. Label the new plan as "Travel" or "Data."
4. Set your US line as the "Primary" line for Voice and SMS.
5. Set the EuroHop eSIM as the "Cellular Data" line.
6. Ensure "Allow Cellular Data Switching" is turned OFF to avoid roaming charges on your US line.

For Android Users

1. Go to Settings > Network & Internet > SIMs.
2. Select "Download a SIM instead?" and scan the QR code.
3. In the SIM settings, ensure the EuroHop eSIM is toggled on for Data.
4. Ensure your US SIM is toggled on for Calls and SMS.
5. Verify that Data Roaming is ON for the EuroHop eSIM and OFF for your US SIM.

For more detailed instructions, you can view the full setup guide.

Arriving in Europe: What to Expect

When you touch down at an airport like London Heathrow or Madrid Barajas, your phone will take a few minutes to register with the local network. Once connected, your EuroHop eSIM will begin providing 5G or 4G LTE data immediately. This allows you to order an Uber, check your hotel's location, or download a train map without hunting for spotty airport WiFi.

Because your US number is still active via the dual-SIM setup, you won't miss any important communications. This is particularly useful for those doing multi-country tours. When you cross the border from France into Switzerland, the eSIM automatically switches to a local Swiss provider like Swisscom or Salt, maintaining your data flow while your US number stays ready for WiFi Calling. see plans

Managing Your Data and Top-ups

One of the anxieties of travel is running out of data in the middle of a remote village. With EuroHop eSIM, you can easily top up your existing plan if you find yourself using more data than expected. This is much more flexible than traditional SIM cards, which often require you to find a physical store to buy a top-up voucher.

Whether you are spending 90 days exploring the Mediterranean or a quick week in the UK, having a fixed data plan or a daily pass gives you the control to stay within your budget. Since there are no contracts or hidden fees, you simply pay for the data you need and nothing more.

The bottom line

Keeping your US phone number in Europe doesn't have to be expensive or complicated. By leveraging the dual-SIM capabilities of your smartphone and a regional EuroHop eSIM, you can enjoy high-speed 5G data across 34 countries while keeping your American line active for essential calls and texts. This strategy offers the perfect balance of local performance and home-country connectivity, ensuring your European adventure is as seamless as possible.