AS17621 220.248.0.0/19 CIDR and IP Range Summary.ASN: 17621 - China Unicom Shanghai NetworkHost Count: 8190Addressable IPs: 8192220.248.0.0/24220.248.1.0/24220.248.2.0/24220.248.3.0/24220.248.4.0/24220.248.5.0/24220.248.6.0/24220.248.7.0/24220.248.8.0/24220.248.9.0/24220.248.10.0/24220.248.11.0/24220.248.12.0/24220.248.13.0/24220.248.14.0/24220.248.15.0/24220.248.16.0/24220.248.17.0/24220.248.18.0/24220.248.19.0/24220.248.20.0/24220.248.21.0/24220.248.22.0/24220.248.23.0/24220.248.24.0/24220.248.25.0/24220.248.26.0/24220.248.27.0/24220.248.28.0/24220.248.29.0/24220.248.30.0/24220.248.31.0/24