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Mark Foster is a founding partner at Blazar Ventures where he brings an understanding of how to build successful businesses around new, innovative technologies and strategies. As the founding CTO at Neustar, Mark helped invent local number portability and led the industry-wide implementation of a complex change regarding how all calls are routed. Mark also led venture developments in internet infrastructure, digital identity, mobile messaging, and digital media.

Before Neustar, Mark was CTO at Phone Base Systems, an innovative venture in value-added communications services, among the founding roles in 6 start-ups over a 40-year career in tech. Mark is currently a board member for Lynk, and an advisor at Airside Mobile, Wireless Registry, and ICX among others.