AS7018 98.72.144.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204898.72.144.0/2498.72.145.0/2498.72.146.0/2498.72.147.0/2498.72.148.0/2498.72.149.0/2498.72.150.0/2498.72.151.0/24