Who called from 2537539219

No message was left on my voicemail and upon returning the call the recording stated it was the automated Opt-Out Service for 253-753-9219.

I received their call this morning. It seems that their name is "CMRKRCH", kind of telemarketer, from Tacoma, WA.
Never answer them, they're spammers!

did not answer  and no voice mail left

Same here!  I didn't pick up, and they didn't leave a message.  Annoying, especially since they called my cell phone and I am at work.

They claim you get free all inclusive trip for 2 to the bahamas if you answer 10 questions... the call came to work so I thought I'd try it.  The questions were easy enough... do you own or rent, do you have a septic tank, do you have diabetes...sleep apnea...  then they transfer you to a live person with a heavy accent asking your name and preferred phone number.  There was alot of noise in the background of other callers.  I decided to hang up at that point and check out this site.  I would never have tested this out with my personal phone number tho!