AS10507 24.221.16.0/20 CIDR and IP Range Summary.ASN: 10507 - Sprint Personal Communications SystemsHost Count: 4094Addressable IPs: 409624.221.16.0/2424.221.17.0/2424.221.18.0/2424.221.19.0/2424.221.20.0/2424.221.21.0/2424.221.22.0/2424.221.23.0/2424.221.24.0/2424.221.25.0/2424.221.26.0/2424.221.27.0/2424.221.28.0/2424.221.29.0/2424.221.30.0/2424.221.31.0/24