AS1689 203.193.104.0/21 CIDR and IP Range Summary.ASN: 1689 - Verizon BusinessHost Count: 2046Addressable IPs: 2048203.193.104.0/24203.193.105.0/24203.193.106.0/24203.193.107.0/24203.193.108.0/24203.193.109.0/24203.193.110.0/24203.193.111.0/24