We provide you with applications for Android, iOS, Windows Phone and Symbian! Use any
platform you want and enjoy Number One!
You can use Number One with or without Internet connection, whoever your mobile operator
is and wherever your live!
Number One challenges mobile operators with lowest possible international rates. Join and
start saving money!
We use the best telecommunication technology to provide you with international calls of
highest possible quality!
Sign up is easy and will take you a minute!
Add some credits to your account to enjoy calling worldwide!
Start talking immediately with the whole world!
Number One has been compiled to prove international telephony can actually be cheap.
Thanks to our direct connections, we can offer you lowest rates
There is no fee for making connection. You pay only for what you
Our access numbers will remember you and automatically recognize you!
Get account and recharge it when you want with our smooth recharge
We treat your security very seriously and we protect your calls with most