AS7018 12.53.112.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.53.112.0/2412.53.113.0/2412.53.114.0/2412.53.115.0/2412.53.116.0/2412.53.117.0/2412.53.118.0/2412.53.119.0/24