All, Thanks for your comments. There were a couple of instances of an average based billing scheme, but for the most part the comments did not indicate this to be a wide-spread practice. I was interested in the question due to a claim by a potential customer that billing on their current transit links with some other carriers was based on average utilization (specific definition undefined) rather than billing based on a 95th percentile value of some set of samples. I had not heard of this trend and wanted make sure I wasn't missing anything. Thanks again for the feedback and insight. Lynn -----Original Message----- From: Lynn Bashaw Sent: Wednesday, February 05, 2003 11:35 AM To: 'nanog@merit.edu' Subject: Does anyone on the list know of any ISPs that bill based on average utilization, rather than some variation of 95th percentile? Thanks Lynn Bashaw Director, Network Engineering Yipes Enterprise Services 2000 S. Colorado Blvd. Denver, CO 80222