Who called from 6417153900

Got a text message from this organization.

Received text message twice from [email protected]
(You Gotta hear this) call 641-715-3900 then ext 21657, wow, reality check. After you listen to IT, send IT, you know someone who needs to heat IT!!!

Can anyone stop this?

Received text from ID "501": [email protected]/FW: You gotta hear this/ Call 641-715-3900 Ext 21657-Reality Check, after you hear IT, send IT,Everyone  needs to hear IT.
Date 10/12/07 at 5:04PM

I got the same irritating page .... Received text from ID "501": [email protected]/FW: You gotta hear this/ Call 641-715-3900 Ext 21657-Reality Check, after you hear IT, send IT,Everyone  needs to hear IT.

How do you get to the bottom of it?

a friend gave this number 1 641 715 3900 ext 8464 sounded interesting but I have yet to verify this - anyone used this service?