only use the part after the "@" sign.
- AT&T – cell-phone-number@txt.att.net
- Sprint – cell-phone-number@messaging.sprintpcs.com
- T-Mobile – cell-phone-number@tmomail.net
- Verizon – cell-phone-number@vtext.com
- Cricket Wireless – cell-phone-number@sms.mycricket.com
- Metro PCS – cell-phone-number@mymetropcs.com
- U.S. Cellular – cell-phone-number@email.uscc.net
- Virgin Mobile USA – cell-phone-number@vmobl.com
- All Tell – cell-phone-number@@message.alltel.com
- Boost – cell-phone-number@myboostmobile.com