AS28840 178.204.216.0/21 CIDR and IP Range Summary.ASN: 28840 - PJSC TattelecomHost Count: 2046Addressable IPs: 2048178.204.216.0/24178.204.217.0/24178.204.218.0/24178.204.219.0/24178.204.220.0/24178.204.221.0/24178.204.222.0/24178.204.223.0/24