Your Second Number 

with One App

Check out our other awesome features!

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Terms and Conditions of Use

 When browsing the web, going out or during other daily activities, onoff is your best ally!
Download the onoff application and get a second number in a few seconds! 

Don't be disturbed on your second line! 

Want to fully enjoy your weekends or cut everything off to focus on the meeting of your life? With just one tap, you are all set! With onoff,  you can choose to be 'on' or 'off' at any given moment. This is also convenient to sell or buy stuff online ;)

How does it work? 

The revolutionary patented technology created by onoff allows you to obtain and use several phone numbers on your phone without the need of a second SIM card or another mobile. It takes only a few seconds! 

Your private life is protected

No more undesirable calls! Onoff offers you an additional layer of protection. Do not share your personal number on the Internet. Simply choose an onoff number and use it for what you want! 

Get your Number for Free Now!

A temporary number without a contract

No need to take on a long-term commitment. With onoff you can choose to keep your number for one week, one month or even one year - you are the one in charge. Choose flexibility!

A secret agent or a fellow compatriot

Want to obtain a double-identity like James? With onoff, get a French, American or why not a UK number in a few clicks. MI-6,  FBI, or even your closest friends would be able to call you at local prices wherever in the world! 

Keep your precious number. Transfer it!

Onoff is the only operator in the world to offer you the possibility to carry your mobile number in the Cloud. Thanks to its virtual portability system, you can access it from any device. 

Need to call Abroad?  

Your family lives abroad? You met the girl of your dreams but she happens to live in another country? Does your job require you to communicate internationally? No worries, Onoff technology allows you to call or send SMS internationally at the best rates ;) 

You SMS can now Time Travel

With Onoff, write your SMS and send it ... in the future! Just pick a date and a time, Onoff takes care of the rest! 
"I Guess You Guys Aren’t Ready For That Yet. But Your Kids Are Gonna Love It." 

Let's talk voicemail

Record personalized messages for your new number or choose a pre-recorded announcement in your preferred language.

With onoff, you get a second number to complete your personal number. You instantly get Unlimited calls and SMS with the application from 3.49€ per month only. Don't worry, if you are not satisfied, their is a 3 Day free trial period. There are no risks involved, just go for it! 

Onoff is the new French telecom operator (as the likes of Orange, SFR, Bouygues, Free) combining the world of telecom with applications. We propose the same guarantees as all mobile network operators .  

Onoff, an ARCEP-certified French operator

Need phone numbers for a professional usage? Onoff business is the best solution to save time, be efficient and reduce costs.

Your onoff number allows you to have a second phone line, so you don't have to share your personal number anymore.  Whether you are using your new number to sell something online,  sharing it at work or using it to meet new people, at any moment, you can switch your second number off. And this is really useful! 

Try it right away and get a 3-day free trial!  

Don't be disturbed