AS7552 115.78.56.0/21 CIDR and IP Range Summary.ASN: 7552 - Viettel GroupHost Count: 2046Addressable IPs: 2048115.78.56.0/24115.78.57.0/24115.78.58.0/24115.78.59.0/24115.78.60.0/24115.78.61.0/24115.78.62.0/24115.78.63.0/24