AS7018 63.193.192.0/21 CIDR and IP Range Summary.ASN: 7018 - AT&T Services Inc.Host Count: 2046Addressable IPs: 204863.193.192.0/2463.193.193.0/2463.193.194.0/2463.193.195.0/2463.193.196.0/2463.193.197.0/2463.193.198.0/2463.193.199.0/24