AS7018 12.157.112.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.157.112.0/2412.157.113.0/2412.157.114.0/2412.157.115.0/2412.157.116.0/2412.157.117.0/2412.157.118.0/2412.157.119.0/24