AS7018 12.31.112.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.31.112.0/2412.31.113.0/2412.31.114.0/2412.31.115.0/2412.31.116.0/2412.31.117.0/2412.31.118.0/2412.31.119.0/24