ASN 16681 - Educational Testing ServiceOrganization : Educational Testing ServiceTotal Countries Listed: 1Total IP Ranges Listed: 9United States of America - IP Ranges: 9IP Range List144.81.10.0/23144.81.53.0/24144.81.54.0/24144.81.85.0/24144.81.97.0/24144.81.111.0/24144.81.127.0/24144.81.191.0/24144.81.192.0/24