AS7018 12.18.248.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.18.248.0/2412.18.249.0/2412.18.250.0/2412.18.251.0/2412.18.252.0/2412.18.253.0/2412.18.254.0/2412.18.255.0/24