Cellular Data

Stay connected
wherever you go

Stay connected wherever you go—whether in the US or abroad—with SLYNUMBER's pay-as-you-go eSIM feature, offering flexibility and convenience without the hassle of contracts or roaming fees.

You can stay connected wherever you go, without the hassle of expensive roaming fees.

We’re excited to introduce our latest update, featuring the new eSIM add-on. With SLYNUMBER’s eSIM, you can stay connected wherever you go, without the hassle of expensive roaming fees. When you run out, simply purchase more or pause the data until you need it again.

150+

Your data travels with you seamlessly

With the SLYNUMBER app, you can grab prepaid data in 150+ countries and say goodbye to roaming fees.

Step by step

How to activate eSIM

1
Download
the app

Download the app, select a subscription and pick your new number.

2
Follow installation instructions

Follow the provided instructions to complete the installation and activate your data plan.

3
Start using
data

Your phone will automatically connect to the internet network, wherever you are.

Complete step-by-step

Ready to try eSIM and change the way you stay connected?

Download the SLYNUMBER app to purchase, manage, and top up your eSIMs anytime, anywhere!

200k+
users

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Reviewer's portrait
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FAQ

Frequently asked questions

Do I need to purchase additional credits?
Does SLYNUMBER work with financial services?
Can I use SLYNUMBER outside of the US?
Can I use my SLYNUMBER for international calls and messages?
Can I choose my area code?
Where is SLYNUMBER available?
Why is having a real mobile phone number important?
What sets SLYNUMBER apart from other second number apps?