Pin code of Sector 4, vaishali is 201010. This page lists all the locations that share the pincode 201010. Click on the location name in the left section to view the respective map in right section.
Confidence votes 28. Contrary to popular belief, Builderman or ROBLOX, are not the first accounts on Roblox. However, Player Admin (User ID#1) was the first account on Roblox and is believed to be have been deleted and replaced by ROBLOX. Back then we had 0 players.
I don't think anybody on ROBLOX (except for possibly David Baszucki) knows what the first game on ROBLOX was, and we may probably never know, as all of the items created from 2004 to early 2006 (except those created in May-June 2005, when the game was apparently in open alpha or beta) no longer exist on ROBLOX.