1-800-BIG-PEST

If you're one of those who've been plagued lately by calls from 1-800-835-8412 you're not alone. There's even a forum devoted to this pesty automated caller boiler room outfit.
Your correspondent has done the digging and here's your tormentor:



Xentel call themselves "North America's leader in profile enhancement for community-based organizations." That's as may be, but they sure didn't enhance their profile or that of anyone they might represent to me, and I can tell you they didn't seem too thrilled about hearing from your corrrespondent.
I managed (eventually) to get through to Xentel's HQ in Calgary. You can get through to them too at:
1-800-895-1309

And their website is here:
http://www.xentel.com/index.htm

You're welcome. All part of the service.