AS20057 166.175.0.0/19 CIDR and IP Range Summary.ASN: 20057 - AT&T Mobility LLCHost Count: 8190Addressable IPs: 8192166.175.0.0/24166.175.1.0/24166.175.2.0/24166.175.3.0/24166.175.4.0/24166.175.5.0/24166.175.6.0/24166.175.7.0/24166.175.8.0/24166.175.9.0/24166.175.10.0/24166.175.11.0/24166.175.12.0/24166.175.13.0/24166.175.14.0/24166.175.15.0/24166.175.16.0/24166.175.17.0/24166.175.18.0/24166.175.19.0/24166.175.20.0/24166.175.21.0/24166.175.22.0/24166.175.23.0/24166.175.24.0/24166.175.25.0/24166.175.26.0/24166.175.27.0/24166.175.28.0/24166.175.29.0/24166.175.30.0/24166.175.31.0/24