AS15557 77.144.0.0/12 CIDR and IP Range Summary.ASN: 15557 - Societe Francaise du Radiotelephone - SFR SAHost Count: 1048574Addressable IPs: 104857677.144.0.0/1677.145.0.0/1677.146.0.0/1677.147.0.0/1677.148.0.0/1677.149.0.0/1677.150.0.0/1677.151.0.0/1677.152.0.0/1677.153.0.0/1677.154.0.0/1677.155.0.0/1677.156.0.0/1677.157.0.0/1677.158.0.0/1677.159.0.0/16