800notes is inundated with reports about these numbers. Here's some advice from the FTC about what to do and some info on call blocking apps for your cell.
SPAM TEXTS
NEVER respond to these texts. From the FTC:
Do not respond to unwanted texts or emails from questionable sources. Several mobile service providers allow you to forward unwanted texts by simply texting it to 7726 (or "SPAM") to block the sender. Check with your provider about other options.
Here's a forum on the top call blockers for android:
http://www.androidforum.com/topic/4421-top-fr ... way-from-annoy/
Here's a review on call blockers for iphone:
http://www.pacebutler.com/blog/top-10-call-blocker-apps-on-iphone/
Here’s an 800 notes forum in which users discuss the kind of call blockers they have:
http://800notes.com/forum/ta-ae7fb1decae9014/ ... -any-do-you-use