AS1689 152.178.56.0/21 CIDR and IP Range Summary.ASN: 1689 - Verizon BusinessHost Count: 2046Addressable IPs: 2048152.178.56.0/24152.178.57.0/24152.178.58.0/24152.178.59.0/24152.178.60.0/24152.178.61.0/24152.178.62.0/24152.178.63.0/24