<html> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> </head> <body> Hi Everyone, worldwide, there are a lot of IP prefixes which are not advertised by the owner AS. Instead, another AS announces the prefix on behalf of the owner. For example: Amazon allows you to announce your prefix via AWS. For other people, this can lead to misassumptions (assuming a wrong IP owner). <a class="moz-txt-link-freetext" href="https://aws.amazon.com/about-aws/whats-new/2018/10/announcing-the-general-availability-of-bring-your-own-ip-for-amazon-virtual-private-cloud/">https://aws.amazon.com/about-aws/whats-new/2018/10/announcing-the-general-availability-of-bring-your-own-ip-for-amazon-virtual-private-cloud/</a> Another example would be a multi ASN company which announces all prefixes from a single ASN via BGP, even though the prefixes are assigned to various AS numbers. Since the RIRs do have the information, to which AS a specific prefix is assigned to, i would like to ask for more transparency. I would appreciate, if we could see more details here, and even more important: filter for such criterias when creating a new measurement. Anyone else here, who thinks that's useful? <img src="cid:part1.FGM7zDIb.0uzcgXzF@toppas.net" alt=""> BR, Simon </body> </html>