AS3257 212.56.15.128/28 CIDR and IP Range Summary.ASN: 3257 - GTT Communications Inc.Host Count: 14Addressable IPs: 16 212.56.15.129212.56.15.130212.56.15.131212.56.15.132212.56.15.133212.56.15.134212.56.15.135212.56.15.136212.56.15.137212.56.15.138212.56.15.139212.56.15.140212.56.15.141212.56.15.142212.56.15.143212.56.15.144