They call me twice a day and I do not pick up unknown calls. I am a CPA.
 Dec 10th, 2012
Since my report on 2012-11-09, they have called once or twice practically every business day (M-F) since. I have reported EVERY call to the FTC's DNC violator section, but they still call. This is harassment.

The number shows up on a web site called
Mr. X.
 Dec 03rd, 2012
Calls my home phone all the time, never leaves a message, and has now started calling my cell phone, even though I am on the Federal DNC list.
 Nov 30th, 2012
Yup I am in the prep business too. I picked up, both times the caller hung up instantly...
 Nov 16th, 2012
I am also in the tax business (as an EA), and have received 3 calls from them in 3 days on my cell too.
As my cell # is on the federal DNC list, I reported each call.
Mr. X.
 Nov 09th, 2012
I have received a call on my cell phone from this number everyday for a week, haven't pick-up yet. I also have a tax business, it's odd they got a hold of my cell since I don't use it professionally.
 Nov 08th, 2012
Got a call from this number this morning. Did not take call. Here is what another site said about it:

Spoofed Numbers: Caution, 214-919-0158 is a "spoofed" number, which means that whoever called you "tricked" your caller ID to display an incorrect phone number.

This sounds inline with what Tom said
 Sep 24th, 2012
Was a woman who sounded like she was in a call center - tried to get my email so I could get a free trial offer for a tax software (I'm a tax accountant). She said the offer was good through April 1st. I mentioned April 1st was a busy tax day and she replied, "Sorry, I don't know your tax season". Guessing she wasn't from around the US.
 Sep 04th, 2012