Asked on 05 Mar 2019
Actually you can!
How I did it without an IC...
Go to Zero1 website, create an account (name, email address, password)
Click "The Plan" on top of the page, select "Give me a New Number" and there's a list of numbers for you to choose from
Once you've chosen a number, proceed to "Order Summary"
Key in credit card details, agreeing to monthly auto-deduction then you're off to go!
Hope the above helps a little! :)