AS7018 12.4.248.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204812.4.248.0/2412.4.249.0/2412.4.250.0/2412.4.251.0/2412.4.252.0/2412.4.253.0/2412.4.254.0/2412.4.255.0/24