Researched this more...
According to this website:
http://tnid.org/lookup/3137683264/

It's owned by : Global Crossing Local Services Inc
.. who's website is:
http://www.globalcrossing.com/
... and their contact page is...
http://www.globalcrossing.com/company/company_contact_us.aspx

I called the slamming phone number, and asked about this phone number, and they claimed it is one of their customers.  She suggested I and an email so Security ( security@gblx.net ), which is listed on this same page.  They have so many days to respond to the complaint, before they pull their plug.  I did send an email asked them to Global Crossing to block my number from this customer.

Just recieved a call at 9:38 a.m. requesting I call 866/544-4880.  I called to [***].  "Please call within normal business hours."

I'm on the do not call list but they continue to call. I lost count how many times so far. What good is the list if it's not enforced. Apparantly I'm far from the only one being harrassed. Where's the government when you need them? Is somebody not doing they're job? Could somebody be recieving kickbacks?Doesn't the special olympics care, this isn't helping they're cause or can they even do anything about it either? Are they involved? Notice caller id does not plural olympic. I'd like to know who carries this phone service and if they are aware. Just giving this ID to other than official special olympics is enough to make me want to boycott that service for they're part.

This number calls us constantly so we will certainly NOT contribute!

I called Special Olympics about this number.  I wanted to make sure that the people trying to sell magazines are actually working with Special Olympics.  The person that I spoke with said yes.  I informed her that the hang up calls and continuous calling after being asked not to is annoying and making them look bad.  It looks to me as a way of abusing the do no call registry--posing as a charity and then selling magazines.