Just like to throw an interesting wrench into this whole discussion. Our current allocations are a /18 and a /19. Although we are growing fairly quickly here, we're actually seeing negative address utilization here. The reason? We started to recommend to our larger customers that their newly-redesigned switched 100Mb/s plus really-flat network might be better served by the 10/8 or the equivalent /16 and /24 address blocks with a proxy server. Better security, less address space utilization. When a customer who you allocated a /20 to releases it back after renumbering into one of the 10/8-type blocks it makes a big difference when your total allocated space is only equivalent to 6 /20's. Of course, this is only a temporary reduction, as we are adding several POP's this summer which will consume more than has been reclaimed. I would be interested if anyone else has seen anything similar. - Forrest W. Christian (forrestc@imach.com) ---------------------------------------------------------------------- iMach, Ltd., P.O. Box 5749, Helena, MT 59604 http://www.imach.com Solutions for your high-tech problems. (406)-442-6648 ----------------------------------------------------------------------