AS15657 80.81.248.0/21 CIDR and IP Range Summary.ASN: 15657 - Speedbone Internet & Connectivity GmbHHost Count: 2046Addressable IPs: 204880.81.248.0/2480.81.249.0/2480.81.250.0/2480.81.251.0/2480.81.252.0/2480.81.253.0/2480.81.254.0/2480.81.255.0/24