AS2152 137.164.56.0/21 CIDR and IP Range Summary.ASN: 2152 - California State University Office of the ChancellorHost Count: 2046Addressable IPs: 2048137.164.56.0/24137.164.57.0/24137.164.58.0/24137.164.59.0/24137.164.60.0/24137.164.61.0/24137.164.62.0/24137.164.63.0/24