206 673 5892 will call and attempt a fax and the attempt repeatedly every several minutes throughout the day.  Within a 60 seconds (sometimes before -sometimes after)  312 548 9942 will call and do the same.  Voicemail inbox can be filled to full in a very short amount of time.  Due to a work project, I turned off my phone during the daytime.  This has continued for a WHOLE week.  Then, today, I went into my cell provider's site and noticed I had blocked the TEXTS from both 206 673 5892 and 3121 548 9942 several months ago along with colinschrisweir2030@gmail.com because of unwanted TEXT SPAM.  They are ruthless, merciless, and inconsiderate to the point of ABUSIVE.

206-673-5892 / 312-548-9942 / and colinschrisweir2030@gmail.com are all the same source of SPAM.

This fax number is harassing my business. Not sure how to make it stop. It calls all day long.

These are sometimes a case of a wrong number in someone's fax system calling bank.  Sometimes you can FAX back a message that tells the caller has a wrong number.  Did you look up the number on www.whocallsme.com ?  This is our sister site, maybe there is info there to help you know who is calling.  Worth a try.  Good Luck!

Now I have started receiving calls from this number, but it was just after receiving another call from (201) 932-0263, which appeared to be a telemarketer.  I did not answer any of these calls.  I just unplugged the phone.  I'll try and update this and let you know if I had any success.