How To Send Email To Any Cell Phone for Free

The graphically illustrated directions are here but basically you need a phones number and the service provider for that number (You can look the service provider up here if you have the number).

Then simply put their number and the providers info in the 'TO" field in an email message.

Carrier	Email to SMS Gateway
Alltel	[10-digit phone number]@message.alltel.com Example: 1234567890@message.alltel.com
AT&T (formerly Cingular)	[10-digit phone number]@txt.att.net [10-digit phone number]@mms.att.net (MMS) [10-digit phone number]@cingularme.com Example: 1234567890@txt.att.net
Boost Mobile	[10-digit phone number]@myboostmobile.com Example: 1234567890@myboostmobile.com
Nextel (now Sprint Nextel)	[10-digit telephone number]@messaging.nextel.com Example: 1234567890@messaging.nextel.com
Sprint PCS (now Sprint Nextel)	[10-digit phone number]@messaging.sprintpcs.com [10-digit phone number]@pm.sprint.com (MMS) Example: 1234567890@messaging.sprintpcs.com
T-Mobile	[10-digit phone number]@tmomail.net Example: 1234567890@tmomail.net
US Cellular	[10-digit phone number]email.uscc.net (SMS) [10-digit phone number]@mms.uscc.net (MMS) Example: 1234567890@email.uscc.net
Verizon	[10-digit phone number]@vtext.com [10-digit phone number]@vzwpix.com (MMS) Example: 1234567890@vtext.com
Virgin Mobile USA	[10-digit phone number]@vmobl.com Example: 1234567890@vmobl.com