AS3257 23.234.152.0/21 CIDR and IP Range Summary.ASN: 3257 - GTT Communications Inc.Host Count: 2046Addressable IPs: 204823.234.152.0/2423.234.153.0/2423.234.154.0/2423.234.155.0/2423.234.156.0/2423.234.157.0/2423.234.158.0/2423.234.159.0/24