AS21021 31.42.16.0/20 CIDR and IP Range Summary.ASN: 21021 - Multimedia Polska Sp. z o.o.Host Count: 4094Addressable IPs: 409631.42.16.0/2431.42.17.0/2431.42.18.0/2431.42.19.0/2431.42.20.0/2431.42.21.0/2431.42.22.0/2431.42.23.0/2431.42.24.0/2431.42.25.0/2431.42.26.0/2431.42.27.0/2431.42.28.0/2431.42.29.0/2431.42.30.0/2431.42.31.0/24