AS19855 64.138.144.0/20 CIDR and IP Range Summary.ASN: 19855 - Masergy Communications Inc.Host Count: 4094Addressable IPs: 409664.138.144.0/2464.138.145.0/2464.138.146.0/2464.138.147.0/2464.138.148.0/2464.138.149.0/2464.138.150.0/2464.138.151.0/2464.138.152.0/2464.138.153.0/2464.138.154.0/2464.138.155.0/2464.138.156.0/2464.138.157.0/2464.138.158.0/2464.138.159.0/24