AS40581 208.90.104.0/21 CIDR and IP Range Summary.ASN: 40581 - Arkansas Research and Education Optical NetworkHost Count: 2046Addressable IPs: 2048208.90.104.0/24208.90.105.0/24208.90.106.0/24208.90.107.0/24208.90.108.0/24208.90.109.0/24208.90.110.0/24208.90.111.0/24