Get a second business phone number for your business with a
customizable voicemail greeting, caller ID and a separate ringtone.
Use it to activate:
SLYNUMBER IS THE ONLY BUSINESS NUMBER PROVIDER ON THE MARKET TO OFFER REAL MOBILE PHONE
NUMBERS - no
SIM card required.
Phone carrier providers such as: Google Voice, Burner, Sideline, Hushed, Phoner, Dingtone, and TextFree offer VoIP
services that come with numerous limitations and are currently rejected by many online services and
apps. SLYNUMBER is the best second phone number app simply because mobile phone numbers work
All incoming calls and sms are included, as well as a 100 free outbound calls.
Additional credits to make voice calls and send text messages can be purchased at any
HOW WE PROTECT YOUR PRIVACY?
SLYNUMBER provides you with a second number/second business phone number that protects your privacy,
and helps you maintain your anonymity online. SLYNUMBER is a personal phone number that
is not associated with any name, address, or billing information. No reverse look-up
tool can reveal the owner of the number. It is completely anonymous.
FREQUENTLY ASKED QUESTIONS
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Features & Benefits
SLYNUMBER for Small
Benefits of 2nd Cell Phone Number
For more information about SLYNUMBER email customer support at
We will respond to you during our regular business hours 9am-5pm ET.