AS15290 204.19.21.0/24 CIDR and IP Range Summary.ASN: 15290 - Allstream Corp.Host Count: 254Addressable IPs: 256 204.19.21.0204.19.21.1204.19.21.2204.19.21.3204.19.21.4204.19.21.5204.19.21.6204.19.21.7204.19.21.8204.19.21.9204.19.21.10204.19.21.11204.19.21.12204.19.21.13204.19.21.14204.19.21.15204.19.21.16204.19.21.17204.19.21.18204.19.21.19204.19.21.20204.19.21.21204.19.21.22204.19.21.23204.19.21.24204.19.21.25204.19.21.26204.19.21.27204.19.21.28204.19.21.29204.19.21.30204.19.21.31204.19.21.32204.19.21.33204.19.21.34204.19.21.35204.19.21.36204.19.21.37204.19.21.38204.19.21.39204.19.21.40204.19.21.41204.19.21.42204.19.21.43204.19.21.44204.19.21.45204.19.21.46204.19.21.47204.19.21.48204.19.21.49204.19.21.50204.19.21.51204.19.21.52204.19.21.53204.19.21.54204.19.21.55204.19.21.56204.19.21.57204.19.21.58204.19.21.59204.19.21.60204.19.21.61204.19.21.62204.19.21.63204.19.21.64204.19.21.65204.19.21.66204.19.21.67204.19.21.68204.19.21.69204.19.21.70204.19.21.71204.19.21.72204.19.21.73204.19.21.74204.19.21.75204.19.21.76204.19.21.77204.19.21.78204.19.21.79204.19.21.80204.19.21.81204.19.21.82204.19.21.83204.19.21.84204.19.21.85204.19.21.86204.19.21.87204.19.21.88204.19.21.89204.19.21.90204.19.21.91204.19.21.92204.19.21.93204.19.21.94204.19.21.95204.19.21.96204.19.21.97204.19.21.98204.19.21.99204.19.21.100204.19.21.101204.19.21.102204.19.21.103204.19.21.104204.19.21.105204.19.21.106204.19.21.107204.19.21.108204.19.21.109204.19.21.110204.19.21.111204.19.21.112204.19.21.113204.19.21.114204.19.21.115204.19.21.116204.19.21.117204.19.21.118204.19.21.119204.19.21.120204.19.21.121204.19.21.122204.19.21.123204.19.21.124204.19.21.125204.19.21.126204.19.21.127204.19.21.128204.19.21.129204.19.21.130204.19.21.131204.19.21.132204.19.21.133204.19.21.134204.19.21.135204.19.21.136204.19.21.137204.19.21.138204.19.21.139204.19.21.140204.19.21.141204.19.21.142204.19.21.143204.19.21.144204.19.21.145204.19.21.146204.19.21.147204.19.21.148204.19.21.149204.19.21.150204.19.21.151204.19.21.152204.19.21.153204.19.21.154204.19.21.155204.19.21.156204.19.21.157204.19.21.158204.19.21.159204.19.21.160204.19.21.161204.19.21.162204.19.21.163204.19.21.164204.19.21.165204.19.21.166204.19.21.167204.19.21.168204.19.21.169204.19.21.170204.19.21.171204.19.21.172204.19.21.173204.19.21.174204.19.21.175204.19.21.176204.19.21.177204.19.21.178204.19.21.179204.19.21.180204.19.21.181204.19.21.182204.19.21.183204.19.21.184204.19.21.185204.19.21.186204.19.21.187204.19.21.188204.19.21.189204.19.21.190204.19.21.191204.19.21.192204.19.21.193204.19.21.194204.19.21.195204.19.21.196204.19.21.197204.19.21.198204.19.21.199204.19.21.200204.19.21.201204.19.21.202204.19.21.203204.19.21.204204.19.21.205204.19.21.206204.19.21.207204.19.21.208204.19.21.209204.19.21.210204.19.21.211204.19.21.212204.19.21.213204.19.21.214204.19.21.215204.19.21.216204.19.21.217204.19.21.218204.19.21.219204.19.21.220204.19.21.221204.19.21.222204.19.21.223204.19.21.224204.19.21.225204.19.21.226204.19.21.227204.19.21.228204.19.21.229204.19.21.230204.19.21.231204.19.21.232204.19.21.233204.19.21.234204.19.21.235204.19.21.236204.19.21.237204.19.21.238204.19.21.239204.19.21.240204.19.21.241204.19.21.242204.19.21.243204.19.21.244204.19.21.245204.19.21.246204.19.21.247204.19.21.248204.19.21.249204.19.21.250204.19.21.251204.19.21.252204.19.21.253204.19.21.254204.19.21.255