Here is the list of email to SMS gateways for some of the major carriers around the world. Simply replace “mobilephonenumber” with the recipient’s mobile phone number, including the country code and area code if applicable.
Provider Email Address
AT&T mobiletelephonenumber@txt.att.net
AT&T (MMS) mobiletelephonenumber@mms.att.net
AT&T Enterprise Paging mobiletelephonenumber@page.att.net
Sprint PCS mobiletelephonenumber@messaging.sprintpcs.com
Sprint PCS (MMS) mobiletelephonenumber@pm.sprint.com
Sprint mobiletelephonenumber@sprintpaging.com
T-Mobile mobiletelephonenumber@tmomail.net
Verizon PCS mobiletelephonenumber@myvzw.com
Verizon Pagers mobiletelephonenumber@myairmail.com
Verizon mobiletelephonenumber@vtext.com
Verizon (MMS) mobiletelephonenumber@vzwpix.com
Example ICS 205 from the Interoperability Field Guide