AS1239 63.172.128.0/20 CIDR and IP Range Summary.ASN: 1239 - SprintHost Count: 4094Addressable IPs: 409663.172.128.0/2463.172.129.0/2463.172.130.0/2463.172.131.0/2463.172.132.0/2463.172.133.0/2463.172.134.0/2463.172.135.0/2463.172.136.0/2463.172.137.0/2463.172.138.0/2463.172.139.0/2463.172.140.0/2463.172.141.0/2463.172.142.0/2463.172.143.0/24