International Phone Numbers

Give your users a real phone number anywhere in the world. Instantly.

Global numbers, local presence

Real local phone numbers in 18 countries. Voice and SMS capable. Provisioned instantly through the API. No local entity required.

For you as a partner

Local access

Local numbers without setting up local entities

Verification

OTP and SMS verification built into your product

One API

Single integration for multiple countries

Scale

Scalable from one number to millions

For your Users

Local presence

Give your users a real local presence in the country they need

Instant trust

Offer local numbers that help build trust from the first call or message

Feel local

Help international customers feel local with a number people recognise

SMS access

Receive SMS, including OTP verification codes, on a real local number

Local calling

Make and receive calls with a local caller ID in supported countries

BUILT FOR EVERY USER MOMENT

Businesswoman on a phone call walking through a city business district

Give users a local phone number in the country they need. Build trust from the first call or message, support SMS and OTP flows, and let users make or receive calls with a local caller ID in minutes.

How it works

Add international phone numbers to your product today.

Make a selection

Choose countries and numbers

Choose from 18 available countries and configure inbound and outbound requirements.

Add to product

Integrate via API or partner dashboard

Numbers are provisioned programmatically through the API or manually through the dashboard.

Go live in minutes

Instant setup

No waiting period. No manual process.

Start calling & texting

Start making and receiving calls and SMS

Voice, SMS, and OTP flows are active immediately.

Proof points

International phone numbers are available in 18 countries, with voice, SMS, and OTP capabilities built in. Numbers can be provisioned instantly through the API, without local entities or manual setup.

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4.64.5

1.3M+

Users on the Firsty platform

Trusted by PEXX, Tapestry, and Patent Co.

“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

Need a local number anywhere in the world? Talk to our team. Explore the docs at developers.firsty.app.

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Questions about offering International Phone Numbers?

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

What is Firsty International Phone Numbers for partners?

Firsty International Phone Numbers lets partners offer real local phone numbers in 18 countries, without setting up local entities.

What is the difference between a Firsty cloud number and a regular number?

A cloud number is virtual and managed through the API. It behaves exactly like a regular number for calls and SMS but can be provisioned instantly at any scale.

Can Firsty phone numbers receive OTP codes?

Yes. All numbers are SMS-capable and work for OTP and two-factor authentication flows.

How quickly are Firsty phone numbers provisioned?

Within minutes of the API request.

Can I provision Firsty phone numbers at scale?

Yes. The API supports any scale from a single number to millions.

Are Firsty phone numbers available for both inbound and outbound?

Yes. Both inbound and outbound calling and SMS are supported.

Is Firsty GDPR compliant?

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