AS1964 166.40.128.0/19 CIDR and IP Range Summary.ASN: 1964 - MCI TelecommunicationsHost Count: 8190Addressable IPs: 8192166.40.128.0/24166.40.129.0/24166.40.130.0/24166.40.131.0/24166.40.132.0/24166.40.133.0/24166.40.134.0/24166.40.135.0/24166.40.136.0/24166.40.137.0/24166.40.138.0/24166.40.139.0/24166.40.140.0/24166.40.141.0/24166.40.142.0/24166.40.143.0/24166.40.144.0/24166.40.145.0/24166.40.146.0/24166.40.147.0/24166.40.148.0/24166.40.149.0/24166.40.150.0/24166.40.151.0/24166.40.152.0/24166.40.153.0/24166.40.154.0/24166.40.155.0/24166.40.156.0/24166.40.157.0/24166.40.158.0/24166.40.159.0/24