AS396986 139.177.240.0/21 CIDR and IP Range Summary.ASN: 396986 - ByteDance Inc.Host Count: 2046Addressable IPs: 2048139.177.240.0/24139.177.241.0/24139.177.242.0/24139.177.243.0/24139.177.244.0/24139.177.245.0/24139.177.246.0/24139.177.247.0/24