AS20057 107.85.208.0/21 CIDR and IP Range Summary.ASN: 20057 - AT&T Mobility LLCHost Count: 2046Addressable IPs: 2048107.85.208.0/24107.85.209.0/24107.85.210.0/24107.85.211.0/24107.85.212.0/24107.85.213.0/24107.85.214.0/24107.85.215.0/24