AS12389 31.180.144.0/20 CIDR and IP Range Summary.ASN: 12389 - PJSC RostelecomHost Count: 4094Addressable IPs: 409631.180.144.0/2431.180.145.0/2431.180.146.0/2431.180.147.0/2431.180.148.0/2431.180.149.0/2431.180.150.0/2431.180.151.0/2431.180.152.0/2431.180.153.0/2431.180.154.0/2431.180.155.0/2431.180.156.0/2431.180.157.0/2431.180.158.0/2431.180.159.0/24