AS7552 171.235.144.0/21 CIDR and IP Range Summary.ASN: 7552 - Viettel GroupHost Count: 2046Addressable IPs: 2048171.235.144.0/24171.235.145.0/24171.235.146.0/24171.235.147.0/24171.235.148.0/24171.235.149.0/24171.235.150.0/24171.235.151.0/24