AS63293 129.134.168.0/21 CIDR and IP Range Summary.ASN: 63293 - Facebook Inc.Host Count: 2046Addressable IPs: 2048129.134.168.0/24129.134.169.0/24129.134.170.0/24129.134.171.0/24129.134.172.0/24129.134.173.0/24129.134.174.0/24129.134.175.0/24