To win the German network deal, AT&T competed against other vendors participating in the Army's Infrastructure Modernization (IMOD) program, a 10-year, $4 billion effort to modernize the fiber optic cable and wireless communications at Army bases worldwide. The 10 IMOD vendors include AT&T, Avaya, Lucent and Siemens -- all of which were umbrella IMOD contracts in April 2006. 

The U.S. Army isn't the only organization rolling out IPv6. The five regional Internet registries -- which distribute IPv4 and IPv6 addresses to ISPs and corporations -- in December that they are seeing an acceleration of IPv6 activity and production deployments across the Internet during the last two years.