We are pleased to announce that Comcast has expanded our DOCSIS-based IPv6 "Native Dual Stack" trials to select locations in the following metropolitan areas: San Francisco, CA, Philadelphia, PA, Miramar, FL, and Chicago, IL. Participating customers have access to content and services natively over both IPv6 and IPv4 addresses. This round of expansion includes the addition of home network equipment from Comcast IPv6 Information Center.