T-Mobile - number@tmomail.com, number@tmomail.net
Verizon - number@vtext.com
Sprint - number@messaging.sprintpcs.com (Sprint PCS)
number@messaging.nextel.com (Nextel)
Alltel - number@message.alltel.com
Virgin Mobile - number@vmobl.com
Boost - number@myboostmobile.com