International Calling

Affordable international calling for products, sales teams, and support operations.

Global calls, local rates

Give your users or teams the ability to call internationally at local rates. Using their existing number or a new one. No surprise bills. No hidden tariffs.

For you as a partner

Add calling

Add international calling without building calling infrastructure

Usage

Increases product usage and retention

Savings

Your users stop losing money on every international call

Switching

Lower international calling costs give users a clear reason to switch banks

Branding

White-label or Firsty-branded, with numbers available in 18 countries

For your Users

Local rates

International calls at local rates

Caller ID

Use their existing caller ID when calling internationally

Dedicated number

Get a dedicated number in one of 18 supported countries

Clear costs

No hidden costs or per-minute surprises

Business calling

Works for personal and high-volume business calling

BUILT FOR EVERY USER MOMENT

Businesswoman on a phone call walking through a city business district

Give users and teams international calling at local rates. Use an existing caller ID or a dedicated number, with no surprise bills and no hidden tariffs. Built for personal and high-volume business calling.

How it works

Add international calling to your product today.

Talk to our team

Set your direction

Define your calling use case and target countries.

Add to product

Choose your integration

Connect via API for full customization or via Web App with no technical work required.

Configure your plan

Configure caller IDs and numbers

Decide whether users call from their existing number or a new local number in any of 18 supported countries.

Go live

Launch your plan

Your users can now call internationally at local rates.

Proof points

International calling is available to 180+ countries, with numbers in 18 countries including the US, UK, Belgium, and Australia, so users and teams can call globally at local rates.

Looking up at glass skyscrapers against a clear sky

Ornate stone office building beside a modern glass tower

4.64.5

1.3M+

Users on the Firsty platform

Trusted by Mastercard and Siemens, with 99% uptime for reliable international calling.

“Amsterdam-based telecom startup Firsty raises €5.1M Seed funding”

"Potential telcomarketdisruptor Firsty immediately brings in €1.1 Million"

"Belfius partners with Dutch eSIM disruptor Firsty for free global app access"

"Five million in growth capital for a Dutch eSIM provider"

“Why We Invested in Firsty: Democratizing Global Mobile Data with eSims”

"Nifty eSIM provider offers free mobile data for life wherever you are"

join the revolution

Want to offer affordable international calling? Talk to our team. Explore the docs at developers.firsty.app.

ISO 27001, PCI DSS, and GDPR compliance badges

Questions about integrating international calling?

We know, it sounds too good to be true. But it’s real. Here’s how.

What is Firsty International Calling for businesses?

Firsty International Calling helps businesses, sales teams, support teams, and companies with international operations make international calls at local rates, without building calling infrastructure.

Can users keep their existing phone number with Firsty?

Yes. Users can call from their existing caller ID, so recipients always see a familiar number.

In which countries does Firsty offer local numbers for businesses?

Businesses integrating Firsty can offer dedicated local numbers to their users, sales teams, or support operations in 18 countries: Australia, Austria, Belgium, Brazil, Canada, Denmark, Estonia, France, Israel, Malaysia, Mauritius, Netherlands, Poland, Puerto Rico, Sweden, Thailand, United Kingdom, and the United States (including Hawaii and Alaska).

Can Firsty handle high-volume business calling?

Yes. Firsty is built for both individual and high-volume business calling use cases.

Is Firsty call quality reliable?

Yes. Calls are routed intelligently across the Firsty network. Firsty operates at 99% uptime.

Is Firsty International Calling white-label?

Yes. Firsty International Calling is fully white-labelable via the API.

Is Firsty GDPR compliant?

Yes. Firsty is GDPR compliant and operates under licensed telecom frameworks in all supported markets.