AS7018 12.34.136.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.34.136.0/2412.34.137.0/2412.34.138.0/2412.34.139.0/2412.34.140.0/2412.34.141.0/2412.34.142.0/2412.34.143.0/24