AS63293 129.134.144.0/21 CIDR and IP Range Summary.ASN: 63293 - Facebook Inc.Host Count: 2046Addressable IPs: 2048129.134.144.0/24129.134.145.0/24129.134.146.0/24129.134.147.0/24129.134.148.0/24129.134.149.0/24129.134.150.0/24129.134.151.0/24