AS19580 149.85.24.0/21 CIDR and IP Range Summary.ASN: 19580 - A.R.T. Advisors LLCHost Count: 2046Addressable IPs: 2048149.85.24.0/24149.85.25.0/24149.85.26.0/24149.85.27.0/24149.85.28.0/24149.85.29.0/24149.85.30.0/24149.85.31.0/24