On May 17, ARIN announced that it would be making changes to the way it produces the in-addr.arpa zone file. Comments on these changes have been minimual. Most were questions addressing specific networks, or were statements of approval. Therefore, ARIN will proceed with implementation on June 1. If you are concerned about possible impact on your networks, please review examples of the changes to occur at: http://www.arin.net/inaddr/ If you still have concerns after reviewing these examples, please direct specific questions about your networks to inaddr@arin.net. Regards, Ginny Listman Director of Engineering ARIN