AS8643 87.239.232.0/21 CIDR and IP Range Summary.ASN: 8643 - National and Kapodistrian University of AthensHost Count: 2046Addressable IPs: 204887.239.232.0/2487.239.233.0/2487.239.234.0/2487.239.235.0/2487.239.236.0/2487.239.237.0/2487.239.238.0/2487.239.239.0/24