The Twilio platform provides API to programmatically send, receive, and track SMS messages worldwide, while also letting you test your SMS-enabled applications within a sandbox environment.
Using your Internet browser, visit https://www.twilio.com/. The Twilio landing page will be displayed with the sign up and log in options.
Click on the SIGN UP button. You will be navigated to the new user registration form.
Fill out the form with the relevant information and then click on the Get Started button. You will be navigated to the Human Verification page: