AS51906 37.130.128.0/21 CIDR and IP Range Summary.ASN: 51906 - recast IT GmbH & Co. KGHost Count: 2046Addressable IPs: 204837.130.128.0/2437.130.129.0/2437.130.130.0/2437.130.131.0/2437.130.132.0/2437.130.133.0/2437.130.134.0/2437.130.135.0/24