AS7018 75.31.112.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204875.31.112.0/2475.31.113.0/2475.31.114.0/2475.31.115.0/2475.31.116.0/2475.31.117.0/2475.31.118.0/2475.31.119.0/24