AS7018 12.138.112.0/20 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 4094Addressable IPs: 409612.138.112.0/2412.138.113.0/2412.138.114.0/2412.138.115.0/2412.138.116.0/2412.138.117.0/2412.138.118.0/2412.138.119.0/2412.138.120.0/2412.138.121.0/2412.138.122.0/2412.138.123.0/2412.138.124.0/2412.138.125.0/2412.138.126.0/2412.138.127.0/24