AS7552 171.251.160.0/21 CIDR and IP Range Summary.ASN: 7552 - Viettel GroupHost Count: 2046Addressable IPs: 2048171.251.160.0/24171.251.161.0/24171.251.162.0/24171.251.163.0/24171.251.164.0/24171.251.165.0/24171.251.166.0/24171.251.167.0/24