SMSRape

Currently the best way to SMS rape someone is to email spam their phone with something like MailRape, or this php script template.

WHO WAS PHONE?

The best way to do this is to social the person you're trying to troll, failing that, you can use (USA only) Mobile Carrier Lookup.

Common US carrier addresses

T-Mobile: phonenumber@tmomail.net
Virgin Mobile: phonenumber@vmobl.com
Sprint: phonenumber@messaging.sprintpcs.com
Verizon: phonenumber@vtext.com
Nextel: phonenumber@messaging.nextel.com
US Cellular: phonenumber@email.uscc.net
SunCom: phonenumber@tms.suncom.com
Powertel: phonenumber@ptel.net
AT&T / Cingular: phonenumber@txt.att.net
Alltel: phonenumber@message.alltel.com
MetroPCS: phonenumber@mymetropcs.com

More complete list, including non-US telephone companies [1]