AS7018 63.206.192.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204863.206.192.0/2463.206.193.0/2463.206.194.0/2463.206.195.0/2463.206.196.0/2463.206.197.0/2463.206.198.0/2463.206.199.0/24