Who called from 4158537139

I keep getting weird [***] texts from this number. The spelling and grammar are terrible.

They keep texting urging me to get a subscription to website Roomster.com

They refuse to say who they r

The poor spelling and grammar are typical of scams out of India and Jamaica.  Some providers allow you to send spam texts to 7762 (SPAM) or consider downloading a call blocking app.  Here are some reviews of available apps:
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

Here's the FTC's advice on dealing with these texts:
http://www.fcc.gov/guides/spam-unwanted-text-messages-and-email

Whackos abound.. scammer responding to 'apt wanted' ad I placed in CL

I posted a want ad for housing on Craigslist and I received some grammatical disasters about Roomster from this number also.

Scam.