No, this isn't necessarily true. Many providers assume that just because they received a /19 or whatever from its upstream ISP they will automatically receive a larger block from the InterNIC with no questions asked. ISPs must show they've utilized any previously allocated blocks (whether from the InterNIC or from its upstream) efficiently to receive additional addresses. Once they do this than there's no problem receiving additional space. If they have not shown proper utilization than in some cases they will receive a smaller block to start.

I'm glad to hear the NIC has changed their policy on this since we asked last year. -- Sean Donelan, Data Research Associates, Inc, St. Louis, MO Affiliation given for identification not representation