AS7552 171.243.160.0/21 CIDR and IP Range Summary.ASN: 7552 - Viettel GroupHost Count: 2046Addressable IPs: 2048171.243.160.0/24171.243.161.0/24171.243.162.0/24171.243.163.0/24171.243.164.0/24171.243.165.0/24171.243.166.0/24171.243.167.0/24