AS7552 171.251.192.0/21 CIDR and IP Range Summary.ASN: 7552 - Viettel GroupHost Count: 2046Addressable IPs: 2048171.251.192.0/24171.251.193.0/24171.251.194.0/24171.251.195.0/24171.251.196.0/24171.251.197.0/24171.251.198.0/24171.251.199.0/24