All you need to know is the recipient’s cellphone number and carrier. And remember to keep your message under 160 characters. Just type the number and then follow it with a string of letters and symbols unique to the recipient’s carrier. If the person you are texting has service with AT&T, the e-mail address will be that person’s 10-digit cellphone number (just the number, no dashes) followed by @txt.att.net.
If the carrier is Verizon, the string is @vtext.com.
For T-Mobile, it is @tmomail.net.
For Alltel, the number is @message.alltel.com.
For Sprint it is @messaging.sprintpcs.com.
While it is free to send messages this way, standard text message rates apply to recipients because the messages are delivered as ordinary texts.
