AS7018 37.218.216.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204837.218.216.0/2437.218.217.0/2437.218.218.0/2437.218.219.0/2437.218.220.0/2437.218.221.0/2437.218.222.0/2437.218.223.0/24