AS7552 171.228.112.0/21 CIDR and IP Range Summary.ASN: 7552 - Viettel GroupHost Count: 2046Addressable IPs: 2048171.228.112.0/24171.228.113.0/24171.228.114.0/24171.228.115.0/24171.228.116.0/24171.228.117.0/24171.228.118.0/24171.228.119.0/24