Does Google take action on sites that do keyword stuffing with phone numbers?

I saw at www.jwz.org where someone complained about typing a phone number and getting back websites that just keyword stuff every phone number in the world on their pages. Does Google take action on such sites? Matt Cutts, Mountain View Have a question? Ask it in our Webmaster Help Forum: groups.google.com Want your question to be answered on a video like this? Follow us on Twitter and look for an announcement when we take new questions: twitter.com More videos: www.youtube.com Webmaster Central Blog: googlewebmastercentral.blogspot.com Webmaster Central: www.google.com