How to Send a Text From an Unknown Number

1. Open your Internet browser on your computer or cell phone.
2. Log in to your email account.
3. Open the page to compose a new message.
4. Type your text message in the message part of the composition page. Remember that most text messages cannot exceed 160 characters, so try to keep your message brief.
5. Type the recipient's 10-digit phone number followed by the recipient's cell phone provider's text message address portal in the recipient address bar. Your finished address will look something like '1234567890@vtext.com.'