AS8400 178.17.16.0/21 CIDR and IP Range Summary.ASN: 8400 - TELEKOM SRBIJA a.d.Host Count: 2046Addressable IPs: 2048178.17.16.0/24178.17.17.0/24178.17.18.0/24178.17.19.0/24178.17.20.0/24178.17.21.0/24178.17.22.0/24178.17.23.0/24