AS3257 72.13.244.104/29 CIDR and IP Range Summary.ASN: 3257 - GTT Communications Inc.Host Count: 6Addressable IPs: 8 72.13.244.10572.13.244.10672.13.244.10772.13.244.10872.13.244.10972.13.244.11072.13.244.11172.13.244.112