Hi,

I just bought this modem but it doesn't work with comcast service that i bought. Apparently it works with all major domestic ADSL service providers including Centurylink, ATT, Verizon, Qwest, and most others. Selling for $30..

http://www.amazon.com/gp/product/B00DLUVH62/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1