Smsreceivefree - Temporary SMS and Disposable Numbers.
SMSToolsOnline - Yet another free SMS service.
Sonetel - Free and paid service for virtual SMS numbers.
Tempsms - (RU) - Keep spam out of your phone and stay safe - just use a free disposable temporary phone number!
Zadarma - The Zadarma VoIP project enables you to set up your business telephone system without the heavy hardware and wiring expenses.
GetFreeSMSNumber - Free Receive SMS Online.
Getsms - (RU) - Russian service to get virtual SMS numbers.
Google Voice - Navigate to Google Voice and register or select a phone number via a fake account (works without phone number verification).
Hs3x - Which Country Number That You want? Which Website That Want To Verify, just reg your number online.
Happy learning!
!