AS7018 12.27.248.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.27.248.0/2412.27.249.0/2412.27.250.0/2412.27.251.0/2412.27.252.0/2412.27.253.0/2412.27.254.0/2412.27.255.0/24