AS7552 171.251.120.0/21 CIDR and IP Range Summary.ASN: 7552 - Viettel GroupHost Count: 2046Addressable IPs: 2048171.251.120.0/24171.251.121.0/24171.251.122.0/24171.251.123.0/24171.251.124.0/24171.251.125.0/24171.251.126.0/24171.251.127.0/24