AS57154 88.133.248.0/21 CIDR and IP Range Summary.ASN: 57154 - Stadtwerke Konstanz GmbHHost Count: 2046Addressable IPs: 204888.133.248.0/2488.133.249.0/2488.133.250.0/2488.133.251.0/2488.133.252.0/2488.133.253.0/2488.133.254.0/2488.133.255.0/24