Dear colleagues, We are conducting a short survey (https://forms.gle/rjmTKnjMAXe8sVmH8) on ASPA validation and enforcement as part of an ongoing measurement study at the University of Twente and the University of Liège. The survey focuses on the operational use of ASPA information: whether networks consume ASPA data to validate BGP AS paths and whether those validation results are enforced through routing policy, for example by rejecting or de-preferencing ASPA-invalid routes. It is not concerned with the publication of ASPA objects themselves. The survey takes approximately 3–5 minutes, and responses will be reported only in aggregate or anonymized form. We would greatly appreciate your input, including from networks where ASPA deployment is partial, experimental, or still under evaluation. Best regards, Savvas Kastanakis