AS7552 171.230.152.0/21 CIDR and IP Range Summary.ASN: 7552 - Viettel GroupHost Count: 2046Addressable IPs: 2048171.230.152.0/24171.230.153.0/24171.230.154.0/24171.230.155.0/24171.230.156.0/24171.230.157.0/24171.230.158.0/24171.230.159.0/24