Relax. It's a legitimate audio & music dealer. Some customer probably mistakenly entered your phone number on an order form (maybe theirs is similar?). The Do Not Call List does not apply for this. Two different numbers are there so you can return the call toll-free.

Received a call from Sweet Water Sound regarding some ULX transmitters I supposedly ordered.  I've never even heard of this company before and most definitely have no idea what a ULX transmitter is or does.  Just to be sure I checked my bank accounts and credit cards in case of fraudulent activity, and didn't turn up anything (luckily).  When I tried to return the call at the number that the representative (Greg Sevino) left, it went straight to voice mail.  I'm on the Do Not Call list and still received what appears to be a call trying to gain personal information, since I've never ordered anything, nor done business with this company.  The number that appeared on my caller I.D. was 260 432 8176, but the callback number left was 800 222 4700.  Both are to Sweetwater Sound.

I had a call requesting I call this number and they identified themselves as True Water Sound and wanted to verify that I had ordered something.

Dear Sir,
Please let me know about buying a PA mixer board such as Peavey XR1212 Powered mixer.
Am from India (South India, TamilNadu).
Kindly contact me on my number 9487118383 is my local mobile number.
Regards,
Dr.Zephaniah

I never bought anything from Sweetwater.

It's Sweetwater - music store. I purchased from them before.