Xcel Energy Inc. Xcel Energy Inc AS21693
151.215.0.0 - 151.215.255.255
170.152.0.0 - 170.152.255.255
192.92.217.0 - 192.92.217.255
192.234.135.0 - 192.234.135.255
192.234.136.0 - 192.234.139.255
192.234.140.0 - 192.234.140.255
198.179.151.0 - 198.179.151.255
198.179.152.0 - 198.179.155.255
198.179.156.0 - 198.179.156.255