AS18705 206.53.144.0/20 CIDR and IP Range Summary.ASN: 18705 - BlackBerry LimitedHost Count: 4094Addressable IPs: 4096206.53.144.0/24206.53.145.0/24206.53.146.0/24206.53.147.0/24206.53.148.0/24206.53.149.0/24206.53.150.0/24206.53.151.0/24206.53.152.0/24206.53.153.0/24206.53.154.0/24206.53.155.0/24206.53.156.0/24206.53.157.0/24206.53.158.0/24206.53.159.0/24