AS7018 67.66.128.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204867.66.128.0/2467.66.129.0/2467.66.130.0/2467.66.131.0/2467.66.132.0/2467.66.133.0/2467.66.134.0/2467.66.135.0/24