AS7018 12.5.248.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.5.248.0/2412.5.249.0/2412.5.250.0/2412.5.251.0/2412.5.252.0/2412.5.253.0/2412.5.254.0/2412.5.255.0/24