Yes, if you don't have an existing number that you would like to port to numobile, you can choose a new number in the activation process, at no additional cost. Log in to your account and there you can pick your new number from a list of available numbers by following these steps:  

1. Verify your nu SIM card by entering the SIM serial number on the SIM card we’ve sent you.  
2. Select a new number from the list provided  
3. Click the ‘Get this number now' button and your number should in most cases be active within a couple of minutes. You will receive a notification as soon as it's ready.   

If you at any point decide to leave numobile, you can take your number with you.