Who called from 4168583827

Got a text implying that I could hook-up with so-and-so if I visited a certain website. #PornSpam

Found out that a text was sent from saying the same as above but was sent using my name. I guess it is just coincidental that the name in the text is the same as mine.

Got the same a annoying  'Alicia' text from the Fido number approx. the same time.

I also got same annoying message from this number as text:
"Hi, it's Alicia. I just put some naughty pics on my profile at www.justhookupcanada.com. My username is AliciaX69. Make a free account and add me as a friend."

How did we end up getting these text messages in the first place? Any ideas?
Are we all with Fido or Chatr?