AS21896 207.71.128.0/19 CIDR and IP Range Summary.ASN: 21896 - Alliant EnergyHost Count: 8190Addressable IPs: 8192207.71.128.0/24207.71.129.0/24207.71.130.0/24207.71.131.0/24207.71.132.0/24207.71.133.0/24207.71.134.0/24207.71.135.0/24207.71.136.0/24207.71.137.0/24207.71.138.0/24207.71.139.0/24207.71.140.0/24207.71.141.0/24207.71.142.0/24207.71.143.0/24207.71.144.0/24207.71.145.0/24207.71.146.0/24207.71.147.0/24207.71.148.0/24207.71.149.0/24207.71.150.0/24207.71.151.0/24207.71.152.0/24207.71.153.0/24207.71.154.0/24207.71.155.0/24207.71.156.0/24207.71.157.0/24207.71.158.0/24207.71.159.0/24