AS3300 72.29.128.0/20 CIDR and IP Range Summary.ASN: 3300 - British Telecommunications PLCHost Count: 4094Addressable IPs: 409672.29.128.0/2472.29.129.0/2472.29.130.0/2472.29.131.0/2472.29.132.0/2472.29.133.0/2472.29.134.0/2472.29.135.0/2472.29.136.0/2472.29.137.0/2472.29.138.0/2472.29.139.0/2472.29.140.0/2472.29.141.0/2472.29.142.0/2472.29.143.0/24