AS28723 131.228.40.0/21 CIDR and IP Range Summary.ASN: 28723 - Nokia OyjHost Count: 2046Addressable IPs: 2048131.228.40.0/24131.228.41.0/24131.228.42.0/24131.228.43.0/24131.228.44.0/24131.228.45.0/24131.228.46.0/24131.228.47.0/24