Phone Providers and SMS
You can easily send SMS to your friends for free by using your email, uploading it as an attachment and sending it to the following addresses depending on the carrier
Most carriers use the 10-digit phone number and carrier domain. Example 2125551212@txt.att.net
Alltel[10-digit phone number]@message.alltel.com
AT&T (formerly Cingular)
[10-digit phone number]@txt.att.net
For multimedia messages, use [10-digit-number]@mms.att.net
Boost Mobile [10-digit phone number]@myboostmobile.com
Cricket Wireless[10-digit phone number]@sms.mycricket.com
For multimedia messages: [10-digit phone number]@mms.mycricket.com
Nextel (now part of Sprint Nextel)[10-digit telephone number]@messaging.nextel.com
Sprint (now Sprint Nextel)[10-digit phone number]@messaging.sprintpcs.com
T-Mobile[10-digit phone number]@tmomail.net
Verizon[10-digit phone number]@vtext.com
Virgin Mobile USA[10-digit phone number]@vmobl.com
Other U.S. and Canadian carriers:
Bell Canada: [10-digit-phone-number]@txt.bellmobility.ca
Centennial Wireless: [10-digit-phone-number]@cwemail.com
Cellular South: [10-digit-phone-number]@csouth1.com
Cincinnati Bell: [10-digit-phone-number]@gocbw.com
Metro PCS: [10-digit-phone-number]@mymetropcs.com or [10-digit-phone-number]@metropcs.sms.us
Qwest: [10-digit-phone-number]@qwestmp.com
Rogers: [10-digit-phone-number]@pcs.rogers.com
Suncom: [10-digit-phone-number]@tms.suncom.com
Telus: [10-digit-phone-number]@msg.telus.com
U.S. Cellular: [10-digit-phone-number]@email.uscc.net
Extended SMS serviced
MySMS is a cloud based SMS service that will sync to all of your devices.
They have apps for PC, MAC, iOS (both tablet and phone), Android (both
tablet and phone), Web, Facebook, and Chrome. Any device you have the app
on will automatically sync SMS text back to all other devices. One of the
nice features of this is that if you replace your phone, tablet, or
computer for any reason you just install the app on the new device and you
will instantly have all your texts back.
Is a service like MySMS but adds in some additional features like being able to schedule when to send a message.
Ebuddy is a subscription service. Not an all devices sort but it can
do more than SMS texting. With links to MSN and other messenger services
this can be a well rounded contact service for you.
txtDrop service is not a subscription service and does not allow for
maintaining address books but if you need something quick and simple
this is the place to go.