No it's a unique ip
You can still fill in dummy info. The number must be valid but they don't send sms verifications. I just enter numbers until it creates my email. Search in google for mobile operators phone codes. You might also find some real numbers. Just change some digits and you are good.
*cough* use a random mobile number *cough*
nope. mobile number MUST be verified by sms. It can be tricked (i.e. receive sms online sites), but it's still a pain.
I've been creating about a hundred accounts daily for the past two weeks without a problem. None of them were verified by sms. They said they sent a verification, but I've been using the accounts just fine.