AS7018 66.142.248.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204866.142.248.0/2466.142.249.0/2466.142.250.0/2466.142.251.0/2466.142.252.0/2466.142.253.0/2466.142.254.0/2466.142.255.0/24