Frequently Asked Questions

Have a question? We’re here to help!

Does SLYNUMBER use data?

It only works with the internet. You need to have access to the Internet through a wireless data plan or through a Wi-Fi connection.

How reliable is SLYNUMBER?

Most users report that the audio quality on SLYNUMBER is exceptional. Connection quality with the service is tied to the internet or cell phone data service you are using.

Can someone tell if I am using SLYNUMBER when I call or message them?

No. None can tell if you are using SLYNUMBER. It is like any other mobile number. The person you are communicating with cannot tell if you are using SLYNUMBER.

Is there any other fee associated with SLYNUMBER?

No, the only fee is the monthly fee you pay or if you buy additional credit for outbound calls

How can I add credits for my outbound calls/texts?

Simply click on add credit button on the app home screen and follow the instructions.

Can I use SLYNUMBER with my existing phone number?

Yes, you can choose to use your existing phone number with SLYNUMBER.

How does SLYNUMBER protect my Privacy?

SLYNUMBER is a great option for anyone who wants to keep their personal phone number private while still being able to communicate with others. It's secure, easy to use, and offers a range of features that make it a versatile tool for both personal and business use. Your SLYNUMBER is not listed anywhere. Your name, address and other personal information are not associated with SLYNUMBER like they are with other mobile Services for the main wireless carriers. Reverse look up tools available cannot reveal any of your information associated with SLYNUMBER.

Can I use SLYNUMBER for business purposes?

Yes, you can use SLYNUMBER for business purposes. It's a great way to keep your personal phone number separate from your business communications. SLYNUMBER also offers features like voice mail, caller name (instead of simply showing a caller ID).

How can I get a SLYNUMBER?

You can get a SLYNUMBER by downloading the SLYNUMBER app on your mobile device or signing up on the website. Once you sign up, you will be assigned a virtual phone number that you can use to make and receive calls and texts.

Can I select my area code?

Yes. SLYNUMBER covers the entire US. You can select are codes that are local to you anywhere in the US. SLYNUMBER will give you an alternate local area code if the numbers in your area code are exhausted. An area code overlay is a telephone numbering plan that allows two or more area codes to serve the same geographic region. This is done by assigning a new area code to the same geographic area as an existing area code, creating an overlay where both area codes can be used interchangeably.

Is SLYNUMBER secure?

A: Yes, SLYNUMBER is secure. It uses encryption to protect your calls and text messages. It also doesn't share any of your personal information or call logs, so you can be sure that your privacy is protected.

Can I use SLYNUMBER when travelling aborad?

Yes you can as long as you have a data connection SLYNUMBER will work. In addition, there are no roaming or other fees when you use it while abroad.


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Visit our help center page for more information, or email our support team at