How to make international calls
Feb 06,2025 | Milo
Table of contents
How to Make an International Call
Comparison of Three Methods to Make International Calls
International Calls with ByteSIM's eSIM
FAQs About Making International Calls
Break down those geographical walls and stay in touch with loved ones anywhere on the globe! In this guide, we’ll show you how to make international calls effortlessly and affordably.
Whether you’re gearing up for an exciting journey, moving to a new country, or simply maintaining connections with family and friends overseas, we’ve got you covered with all the essential tips.
Say goodbye to hefty charges for international calls! We’ll walk you through various cost-effective methods, from using traditional roaming services to leveraging modern eSIMs with unlimited data for seamless VoIP app calls.
What are international calls
Making an international call means connecting with someone in a different country. Unlike domestic calls, these require crossing borders through global telecommunications networks. As a premium service, international dialing often comes with extra charges or specific calling plans.
It’s crucial to understand that international calls typically cost more than local ones when using traditional calling plans. The rates can differ widely based on your mobile carrier and the destination country. Before dialing, take a moment to compare international rates or roaming fees from your provider.
Fortunately, every challenge has a workaround, and there are budget-friendly ways to avoid steep international calling costs. A popular choice is leveraging your data plan to make calls via apps like WhatsApp or Telegram. We’ll dive into these solutions in detail shortly.
----> You may want to know how to get an eSIM with a phone number.
International area codes
Before exploring international calling alternatives, it’s crucial to understand area codes. Whether you’re relying on roaming, mobile data, or another method, knowing the correct country code is essential. You’ll need both the area code of the country you’re calling and the recipient’s phone number.
Area codes are dialed before entering the mobile or landline number. Below is a handy list of some common international codes:
- Spain: +34
- Italy: +39
- France: +33
Keep this list—or a similar one with other country codes—close at hand, as it will come in handy for the step-by-step guide. Now that we’ve covered area codes, let’s explore the best options for making international calls.
How to Make an International Call
Making international calls can seem daunting, especially with the variety of methods available today. This guide simplifies the process and provides practical tips to ensure your calls are seamless and cost-effective. Whether you're calling for business, to stay connected with loved ones, or in an emergency, we will cover everything you need to know.
Key Elements for Making an International Call
- International Direct Dialing (IDD) Code
This is the prefix needed to make an international call. It varies by country and carrier. For example, the IDD for the US is “011,” while in China, it is “00.” -
Country Code
A unique code that identifies the destination country. For instance, the country code for China is “86,” while the US and Canada share “1.” Some countries, like the US, Canada, and parts of the Caribbean, may use the same code. -
City/Area Code
Larger countries often require an additional code to specify the city or region, such as “212” for New York City in the US. Smaller countries may not use area codes.
How to Make an International Call
Dialing Formula: IDD + Country Code + City/Area Code (if any) + Local Phone Number
-
Dial the International Direct Dialing (IDD) Number
Begin by dialing the International Direct Dialing (IDD) code specific to your country. The IDD code may vary depending on the carrier or service type. -
Dial the Country Code
After the IDD, input the country code of the destination you are calling. Note that some countries share the same code—for instance, the United States, Canada, many Caribbean nations, and Guam all use the country code "1." -
Dial the City/Area Code (if applicable)
Next, enter the city or area code for the specific location. Not all countries require this step; smaller nations may not have area codes, whereas larger countries may have numerous city codes. -
Dial the Phone Number
Finally, input the local phone number of the person or business you are trying to reach.
By following these steps in order—IDD, Country Code, City/Area Code, and Phone Number—you can successfully make an international call.
Tips for International Calling:
- Use the + sign instead of the IDD for easier dialing.
- Check time zones to ensure you're calling at an appropriate hour.
- Save numbers with the international format for convenience.
- Consider eSIM plans like ByteSIM for affordable international calling.
----> You may want to know how to get an eSIM with a US number.
Comparison of Three Methods to Make International Calls
Each method has distinct benefits and trade-offs. For short trips, roaming may be the most convenient; prepaid cards work well for budget-conscious travelers. And VoIP services are ideal for those with consistent internet access.
International Calls with ByteSIM's eSIM
If you're unfamiliar, eSIMs are digital versions of traditional SIM cards. They work just like physical SIMs but come pre-installed on your device. Activating one is as simple as scanning a QR code with a compatible phone.
This cutting-edge technology is designed for convenience and affordability, often providing a more cost-effective solution than roaming. ByteSIM stands out as a leading provider globally, offering hassle-free activation and unlimited data plans for travelers. Additionally, they support unlimited calling through VoIP apps for seamless communication. Alternatively,

Acquiring an eSIM is a breeze! Visit ByteSIM’s website, select your travel destination from the options provided, and choose a plan duration that suits your itinerary. After making your purchase, the eSIM will be delivered straight to your email. Activation is as simple as scanning the provided QR code. Easy and hassle-free!
How to Make Calls Using an eSIM with Unlimited Data
Once your ByteSIM eSIM is activated, you can effortlessly make calls using unlimited data. For this, apps like WhatsApp, Telegram, Skype, Google Voice, or others of your choice come in handy.
These platforms not only support voice calls but also allow video communication. The only requirement is a reliable internet connection. If you're unsure how to get started, follow these easy steps:
- Install your preferred app, such as WhatsApp or Telegram, from your device's app store.
- Add the contact’s number to your phone, ensuring you include the correct area codes as outlined in the roaming section above.
- If the contact is already saved, open the app directly.
- Locate the contact within the app and choose between a voice or video call option.
- Simply press the call button, often represented by a telephone icon, to initiate the call.
It’s that simple—connect with anyone globally while enjoying the convenience of unlimited data!
----> You may want to know how to get an eSIM with a Canadian number.
FAQs About Making International Calls
What is the most affordable way to make international calls?
The most cost-effective method is using mobile messaging apps, provided you have access to Wi-Fi or mobile data. However, the best budget-friendly option is to use a ByteSIM eSIM. With eSIM technology, you can make VoIP calls without incurring additional charges.
How can I access the internet to make international calls?
You have several choices: roaming services, ByteSIM eSIMs, or purchasing prepaid SIM cards in the destination country you’re visiting.
How can I get internet in Europe for making calls?
There are numerous apps specifically designed for internet access in Europe. Before heading out, take some time to research the best apps to ensure you stay connected while you travel across the continent.