Star Trek (2009) Easter Egg - U.S.S. Enterprise was built in Sector "47"

As James Kirk rides up to the Federation Shipyards to join Starfleet there's a brief glimpse of the Shipyard sign where the Enterprise is being built. This sign reads, "SFC Division, United Federation of Planets, Sector 47."

I refer you to http://www.eeggs.com/items/39234.html for more information on the significance of the 47.