[10800] 0.170.156.216.in-addr.arpa. domain name pointer 216.156.170.0.ptr.us.xo.net [10800] 1.170.156.216.in-addr.arpa. domain name pointer 216.156.170.1.ptr.us.xo.net [10800] 2.170.156.216.in-addr.arpa. domain name pointer 216.156.170.2.ptr.us.xo.net [10800] 3.170.156.216.in-addr.arpa. domain name pointer 216.156.170.3.ptr.us.xo.net [10800] 4.170.156.216.in-addr.arpa. domain name pointer 216.156.170.4.ptr.us.xo.net [10800] 5.170.156.216.in-addr.arpa. domain name pointer 216.156.170.5.ptr.us.xo.net [10800] 6.170.156.216.in-addr.arpa. domain name pointer 216.156.170.6.ptr.us.xo.net [10800] 7.170.156.216.in-addr.arpa. domain name pointer 216.156.170.7.ptr.us.xo.net [10800] 8.170.156.216.in-addr.arpa. domain name pointer 216.156.170.8.ptr.us.xo.net [10800] 9.170.156.216.in-addr.arpa. domain name pointer 216.156.170.9.ptr.us.xo.net [10800] 10.170.156.216.in-addr.arpa. domain name pointer 216.156.170.10.ptr.us.xo.net [10800] 11.170.156.216.in-addr.arpa. domain name pointer 216.156.170.11.ptr.us.xo.net [10800] 12.170.156.216.in-addr.arpa. domain name pointer 216.156.170.12.ptr.us.xo.net [10800] 13.170.156.216.in-addr.arpa. domain name pointer 216.156.170.13.ptr.us.xo.net [10800] 14.170.156.216.in-addr.arpa. domain name pointer 216.156.170.14.ptr.us.xo.net [10800] 15.170.156.216.in-addr.arpa. domain name pointer 216.156.170.15.ptr.us.xo.net [10800] 16.170.156.216.in-addr.arpa. domain name pointer 216.156.170.16.ptr.us.xo.net [10800] 17.170.156.216.in-addr.arpa. domain name pointer 216.156.170.17.ptr.us.xo.net [10800] 18.170.156.216.in-addr.arpa. domain name pointer 216.156.170.18.ptr.us.xo.net [10800] 19.170.156.216.in-addr.arpa. domain name pointer 216.156.170.19.ptr.us.xo.net [10800] 20.170.156.216.in-addr.arpa. domain name pointer 216.156.170.20.ptr.us.xo.net [10800] 21.170.156.216.in-addr.arpa. domain name pointer 216.156.170.21.ptr.us.xo.net [10800] 22.170.156.216.in-addr.arpa. domain name pointer 216.156.170.22.ptr.us.xo.net [10800] 23.170.156.216.in-addr.arpa. domain name pointer 216.156.170.23.ptr.us.xo.net [10800] 24.170.156.216.in-addr.arpa. domain name pointer 216.156.170.24.ptr.us.xo.net [10800] 25.170.156.216.in-addr.arpa. domain name pointer 216.156.170.25.ptr.us.xo.net [10800] 26.170.156.216.in-addr.arpa. domain name pointer 216.156.170.26.ptr.us.xo.net [10800] 27.170.156.216.in-addr.arpa. domain name pointer 216.156.170.27.ptr.us.xo.net [10800] 28.170.156.216.in-addr.arpa. domain name pointer 216.156.170.28.ptr.us.xo.net [10800] 29.170.156.216.in-addr.arpa. domain name pointer 216.156.170.29.ptr.us.xo.net [10800] 30.170.156.216.in-addr.arpa. domain name pointer 216.156.170.30.ptr.us.xo.net [10800] 31.170.156.216.in-addr.arpa. domain name pointer 216.156.170.31.ptr.us.xo.net [10800] 32.170.156.216.in-addr.arpa. domain name pointer 216.156.170.32.ptr.us.xo.net [10800] 33.170.156.216.in-addr.arpa. domain name pointer 216.156.170.33.ptr.us.xo.net [10800] 34.170.156.216.in-addr.arpa. domain name pointer 216.156.170.34.ptr.us.xo.net [10800] 35.170.156.216.in-addr.arpa. domain name pointer 216.156.170.35.ptr.us.xo.net [10800] 36.170.156.216.in-addr.arpa. domain name pointer 216.156.170.36.ptr.us.xo.net [10800] 37.170.156.216.in-addr.arpa. domain name pointer 216.156.170.37.ptr.us.xo.net [10800] 38.170.156.216.in-addr.arpa. domain name pointer 216.156.170.38.ptr.us.xo.net [10800] 39.170.156.216.in-addr.arpa. domain name pointer 216.156.170.39.ptr.us.xo.net [10800] 40.170.156.216.in-addr.arpa. domain name pointer 216.156.170.40.ptr.us.xo.net [10800] 41.170.156.216.in-addr.arpa. domain name pointer 216.156.170.41.ptr.us.xo.net [10800] 42.170.156.216.in-addr.arpa. domain name pointer 216.156.170.42.ptr.us.xo.net [10800] 43.170.156.216.in-addr.arpa. domain name pointer 216.156.170.43.ptr.us.xo.net [10800] 44.170.156.216.in-addr.arpa. domain name pointer 216.156.170.44.ptr.us.xo.net [10800] 45.170.156.216.in-addr.arpa. domain name pointer 216.156.170.45.ptr.us.xo.net [10800] 46.170.156.216.in-addr.arpa. domain name pointer 216.156.170.46.ptr.us.xo.net [10800] 47.170.156.216.in-addr.arpa. domain name pointer 216.156.170.47.ptr.us.xo.net [10800] 48.170.156.216.in-addr.arpa. domain name pointer 216.156.170.48.ptr.us.xo.net [10800] 49.170.156.216.in-addr.arpa. domain name pointer 216.156.170.49.ptr.us.xo.net [10800] 50.170.156.216.in-addr.arpa. domain name pointer 216.156.170.50.ptr.us.xo.net [10800] 51.170.156.216.in-addr.arpa. domain name pointer 216.156.170.51.ptr.us.xo.net [10800] 52.170.156.216.in-addr.arpa. domain name pointer 216.156.170.52.ptr.us.xo.net [10800] 53.170.156.216.in-addr.arpa. domain name pointer 216.156.170.53.ptr.us.xo.net [10800] 54.170.156.216.in-addr.arpa. domain name pointer 216.156.170.54.ptr.us.xo.net [10800] 55.170.156.216.in-addr.arpa. domain name pointer 216.156.170.55.ptr.us.xo.net [0] 56.170.156.216.in-addr.arpa.: domain name does not exist [0] 57.170.156.216.in-addr.arpa.: domain name does not exist [0] 58.170.156.216.in-addr.arpa.: domain name does not exist [0] 59.170.156.216.in-addr.arpa.: domain name does not exist [0] 60.170.156.216.in-addr.arpa.: domain name does not exist [0] 61.170.156.216.in-addr.arpa.: domain name does not exist [0] 62.170.156.216.in-addr.arpa.: domain name does not exist [0] 63.170.156.216.in-addr.arpa.: domain name does not exist [10800] 64.170.156.216.in-addr.arpa. domain name pointer 216.156.170.64.ptr.us.xo.net [10800] 65.170.156.216.in-addr.arpa. domain name pointer 216.156.170.65.ptr.us.xo.net [10800] 66.170.156.216.in-addr.arpa. domain name pointer 216.156.170.66.ptr.us.xo.net [10800] 67.170.156.216.in-addr.arpa. domain name pointer 216.156.170.67.ptr.us.xo.net [10800] 68.170.156.216.in-addr.arpa. domain name pointer 216.156.170.68.ptr.us.xo.net [10800] 69.170.156.216.in-addr.arpa. domain name pointer 216.156.170.69.ptr.us.xo.net [10800] 70.170.156.216.in-addr.arpa. domain name pointer 216.156.170.70.ptr.us.xo.net [10800] 71.170.156.216.in-addr.arpa. domain name pointer 216.156.170.71.ptr.us.xo.net [10800] 72.170.156.216.in-addr.arpa. domain name pointer 216.156.170.72.ptr.us.xo.net [10800] 73.170.156.216.in-addr.arpa. domain name pointer 216.156.170.73.ptr.us.xo.net [10800] 74.170.156.216.in-addr.arpa. domain name pointer 216.156.170.74.ptr.us.xo.net [10800] 75.170.156.216.in-addr.arpa. domain name pointer 216.156.170.75.ptr.us.xo.net [10800] 76.170.156.216.in-addr.arpa. domain name pointer 216.156.170.76.ptr.us.xo.net [10800] 77.170.156.216.in-addr.arpa. domain name pointer 216.156.170.77.ptr.us.xo.net [10800] 78.170.156.216.in-addr.arpa. domain name pointer 216.156.170.78.ptr.us.xo.net [10800] 79.170.156.216.in-addr.arpa. domain name pointer 216.156.170.79.ptr.us.xo.net [10800] 80.170.156.216.in-addr.arpa. domain name pointer 216.156.170.80.ptr.us.xo.net [10800] 81.170.156.216.in-addr.arpa. domain name pointer 216.156.170.81.ptr.us.xo.net [10800] 82.170.156.216.in-addr.arpa. domain name pointer 216.156.170.82.ptr.us.xo.net [10800] 83.170.156.216.in-addr.arpa. domain name pointer 216.156.170.83.ptr.us.xo.net [10800] 84.170.156.216.in-addr.arpa. domain name pointer 216.156.170.84.ptr.us.xo.net [10800] 85.170.156.216.in-addr.arpa. domain name pointer 216.156.170.85.ptr.us.xo.net [10800] 86.170.156.216.in-addr.arpa. domain name pointer 216.156.170.86.ptr.us.xo.net [10800] 87.170.156.216.in-addr.arpa. domain name pointer 216.156.170.87.ptr.us.xo.net [10800] 88.170.156.216.in-addr.arpa. domain name pointer 216.156.170.88.ptr.us.xo.net [10800] 89.170.156.216.in-addr.arpa. domain name pointer 216.156.170.89.ptr.us.xo.net [10800] 90.170.156.216.in-addr.arpa. domain name pointer 216.156.170.90.ptr.us.xo.net [10800] 91.170.156.216.in-addr.arpa. domain name pointer 216.156.170.91.ptr.us.xo.net [10800] 92.170.156.216.in-addr.arpa. domain name pointer 216.156.170.92.ptr.us.xo.net [10800] 93.170.156.216.in-addr.arpa. domain name pointer 216.156.170.93.ptr.us.xo.net [10800] 94.170.156.216.in-addr.arpa. domain name pointer 216.156.170.94.ptr.us.xo.net [10800] 95.170.156.216.in-addr.arpa. domain name pointer 216.156.170.95.ptr.us.xo.net [10800] 96.170.156.216.in-addr.arpa. domain name pointer 216.156.170.96.ptr.us.xo.net [10800] 97.170.156.216.in-addr.arpa. domain name pointer 216.156.170.97.ptr.us.xo.net [10800] 98.170.156.216.in-addr.arpa. domain name pointer 216.156.170.98.ptr.us.xo.net [10800] 99.170.156.216.in-addr.arpa. domain name pointer 216.156.170.99.ptr.us.xo.net [10800] 100.170.156.216.in-addr.arpa. domain name pointer 216.156.170.100.ptr.us.xo.net [10800] 101.170.156.216.in-addr.arpa. domain name pointer 216.156.170.101.ptr.us.xo.net [10800] 102.170.156.216.in-addr.arpa. domain name pointer 216.156.170.102.ptr.us.xo.net [10800] 103.170.156.216.in-addr.arpa. domain name pointer 216.156.170.103.ptr.us.xo.net [10800] 104.170.156.216.in-addr.arpa. domain name pointer 216.156.170.104.ptr.us.xo.net [10800] 105.170.156.216.in-addr.arpa. domain name pointer 216.156.170.105.ptr.us.xo.net [10800] 106.170.156.216.in-addr.arpa. domain name pointer 216.156.170.106.ptr.us.xo.net [10800] 107.170.156.216.in-addr.arpa. domain name pointer 216.156.170.107.ptr.us.xo.net [10800] 108.170.156.216.in-addr.arpa. domain name pointer 216.156.170.108.ptr.us.xo.net [10800] 109.170.156.216.in-addr.arpa. domain name pointer 216.156.170.109.ptr.us.xo.net [10800] 110.170.156.216.in-addr.arpa. domain name pointer 216.156.170.110.ptr.us.xo.net [10800] 111.170.156.216.in-addr.arpa. domain name pointer 216.156.170.111.ptr.us.xo.net [10800] 112.170.156.216.in-addr.arpa. domain name pointer 216.156.170.112.ptr.us.xo.net [10800] 113.170.156.216.in-addr.arpa. domain name pointer 216.156.170.113.ptr.us.xo.net [10800] 114.170.156.216.in-addr.arpa. domain name pointer 216.156.170.114.ptr.us.xo.net [10800] 115.170.156.216.in-addr.arpa. domain name pointer 216.156.170.115.ptr.us.xo.net [10800] 116.170.156.216.in-addr.arpa. domain name pointer 216.156.170.116.ptr.us.xo.net [10800] 117.170.156.216.in-addr.arpa. domain name pointer 216.156.170.117.ptr.us.xo.net [10800] 118.170.156.216.in-addr.arpa. domain name pointer 216.156.170.118.ptr.us.xo.net [10800] 119.170.156.216.in-addr.arpa. domain name pointer 216.156.170.119.ptr.us.xo.net [10800] 120.170.156.216.in-addr.arpa. domain name pointer 216.156.170.120.ptr.us.xo.net [10800] 121.170.156.216.in-addr.arpa. domain name pointer 216.156.170.121.ptr.us.xo.net [10800] 122.170.156.216.in-addr.arpa. domain name pointer 216.156.170.122.ptr.us.xo.net [10800] 123.170.156.216.in-addr.arpa. domain name pointer 216.156.170.123.ptr.us.xo.net [10800] 124.170.156.216.in-addr.arpa. domain name pointer 216.156.170.124.ptr.us.xo.net [10800] 125.170.156.216.in-addr.arpa. domain name pointer 216.156.170.125.ptr.us.xo.net [10800] 126.170.156.216.in-addr.arpa. domain name pointer 216.156.170.126.ptr.us.xo.net [10800] 127.170.156.216.in-addr.arpa. domain name pointer 216.156.170.127.ptr.us.xo.net [0] 128.170.156.216.in-addr.arpa.: domain name does not exist [0] 129.170.156.216.in-addr.arpa.: domain name does not exist [0] 130.170.156.216.in-addr.arpa.: domain name does not exist [0] 131.170.156.216.in-addr.arpa.: domain name does not exist [0] 132.170.156.216.in-addr.arpa.: domain name does not exist [0] 133.170.156.216.in-addr.arpa.: domain name does not exist [0] 134.170.156.216.in-addr.arpa.: domain name does not exist [0] 135.170.156.216.in-addr.arpa.: domain name does not exist [0] 136.170.156.216.in-addr.arpa.: domain name does not exist [0] 137.170.156.216.in-addr.arpa.: domain name does not exist [0] 138.170.156.216.in-addr.arpa.: domain name does not exist [0] 139.170.156.216.in-addr.arpa.: domain name does not exist [0] 140.170.156.216.in-addr.arpa.: domain name does not exist [0] 141.170.156.216.in-addr.arpa.: domain name does not exist [0] 142.170.156.216.in-addr.arpa.: domain name does not exist [0] 143.170.156.216.in-addr.arpa.: domain name does not exist [0] 144.170.156.216.in-addr.arpa.: domain name does not exist [0] 145.170.156.216.in-addr.arpa.: domain name does not exist [0] 146.170.156.216.in-addr.arpa.: domain name does not exist [0] 147.170.156.216.in-addr.arpa.: domain name does not exist [0] 148.170.156.216.in-addr.arpa.: domain name does not exist [0] 149.170.156.216.in-addr.arpa.: domain name does not exist [0] 150.170.156.216.in-addr.arpa.: domain name does not exist [0] 151.170.156.216.in-addr.arpa.: domain name does not exist [0] 152.170.156.216.in-addr.arpa.: domain name does not exist [0] 153.170.156.216.in-addr.arpa.: domain name does not exist [0] 154.170.156.216.in-addr.arpa.: domain name does not exist [0] 155.170.156.216.in-addr.arpa.: domain name does not exist [0] 156.170.156.216.in-addr.arpa.: domain name does not exist [0] 157.170.156.216.in-addr.arpa.: domain name does not exist [0] 158.170.156.216.in-addr.arpa.: domain name does not exist [0] 159.170.156.216.in-addr.arpa.: domain name does not exist [0] 160.170.156.216.in-addr.arpa.: domain name does not exist [0] 161.170.156.216.in-addr.arpa.: domain name does not exist [0] 162.170.156.216.in-addr.arpa.: domain name does not exist [0] 163.170.156.216.in-addr.arpa.: domain name does not exist [0] 164.170.156.216.in-addr.arpa.: domain name does not exist [0] 165.170.156.216.in-addr.arpa.: domain name does not exist [0] 166.170.156.216.in-addr.arpa.: domain name does not exist [0] 167.170.156.216.in-addr.arpa.: domain name does not exist [0] 168.170.156.216.in-addr.arpa.: domain name does not exist [0] 169.170.156.216.in-addr.arpa.: domain name does not exist [0] 170.170.156.216.in-addr.arpa.: domain name does not exist [0] 171.170.156.216.in-addr.arpa.: domain name does not exist [0] 172.170.156.216.in-addr.arpa.: domain name does not exist [0] 173.170.156.216.in-addr.arpa.: domain name does not exist [0] 174.170.156.216.in-addr.arpa.: domain name does not exist [0] 175.170.156.216.in-addr.arpa.: domain name does not exist [0] 176.170.156.216.in-addr.arpa.: domain name does not exist [0] 177.170.156.216.in-addr.arpa.: domain name does not exist [0] 178.170.156.216.in-addr.arpa.: domain name does not exist [0] 179.170.156.216.in-addr.arpa.: domain name does not exist [0] 180.170.156.216.in-addr.arpa.: domain name does not exist [0] 181.170.156.216.in-addr.arpa.: domain name does not exist [0] 182.170.156.216.in-addr.arpa.: domain name does not exist [0] 183.170.156.216.in-addr.arpa.: domain name does not exist [0] 184.170.156.216.in-addr.arpa.: domain name does not exist [0] 185.170.156.216.in-addr.arpa.: domain name does not exist [0] 186.170.156.216.in-addr.arpa.: domain name does not exist [0] 187.170.156.216.in-addr.arpa.: domain name does not exist [0] 188.170.156.216.in-addr.arpa.: domain name does not exist [0] 189.170.156.216.in-addr.arpa.: domain name does not exist [0] 190.170.156.216.in-addr.arpa.: domain name does not exist [0] 191.170.156.216.in-addr.arpa.: domain name does not exist [0] 192.170.156.216.in-addr.arpa.: domain name does not exist [0] 193.170.156.216.in-addr.arpa.: domain name does not exist [0] 194.170.156.216.in-addr.arpa.: domain name does not exist [0] 195.170.156.216.in-addr.arpa.: domain name does not exist [0] 196.170.156.216.in-addr.arpa.: domain name does not exist [0] 197.170.156.216.in-addr.arpa.: domain name does not exist [0] 198.170.156.216.in-addr.arpa.: domain name does not exist [0] 199.170.156.216.in-addr.arpa.: domain name does not exist [0] 200.170.156.216.in-addr.arpa.: domain name does not exist [0] 201.170.156.216.in-addr.arpa.: domain name does not exist [0] 202.170.156.216.in-addr.arpa.: domain name does not exist [0] 203.170.156.216.in-addr.arpa.: domain name does not exist [0] 204.170.156.216.in-addr.arpa.: domain name does not exist [0] 205.170.156.216.in-addr.arpa.: domain name does not exist [0] 206.170.156.216.in-addr.arpa.: domain name does not exist [0] 207.170.156.216.in-addr.arpa.: domain name does not exist [10800] 208.170.156.216.in-addr.arpa. domain name pointer 216.156.170.208.ptr.us.xo.net [10800] 209.170.156.216.in-addr.arpa. domain name pointer 216.156.170.209.ptr.us.xo.net [10800] 210.170.156.216.in-addr.arpa. domain name pointer 216.156.170.210.ptr.us.xo.net [10800] 211.170.156.216.in-addr.arpa. domain name pointer 216.156.170.211.ptr.us.xo.net [10800] 212.170.156.216.in-addr.arpa. domain name pointer 216.156.170.212.ptr.us.xo.net [10800] 213.170.156.216.in-addr.arpa. domain name pointer 216.156.170.213.ptr.us.xo.net [10800] 214.170.156.216.in-addr.arpa. domain name pointer 216.156.170.214.ptr.us.xo.net [10800] 215.170.156.216.in-addr.arpa. domain name pointer 216.156.170.215.ptr.us.xo.net [0] 216.170.156.216.in-addr.arpa.: domain name does not exist [0] 217.170.156.216.in-addr.arpa.: domain name does not exist [0] 218.170.156.216.in-addr.arpa.: domain name does not exist [0] 219.170.156.216.in-addr.arpa.: domain name does not exist [0] 220.170.156.216.in-addr.arpa.: domain name does not exist [0] 221.170.156.216.in-addr.arpa.: domain name does not exist [0] 222.170.156.216.in-addr.arpa.: domain name does not exist [0] 223.170.156.216.in-addr.arpa.: domain name does not exist [10800] 224.170.156.216.in-addr.arpa. domain name pointer 216.156.170.224.ptr.us.xo.net [10800] 225.170.156.216.in-addr.arpa. domain name pointer 216.156.170.225.ptr.us.xo.net [10800] 226.170.156.216.in-addr.arpa. domain name pointer 216.156.170.226.ptr.us.xo.net [10800] 227.170.156.216.in-addr.arpa. domain name pointer 216.156.170.227.ptr.us.xo.net [10800] 228.170.156.216.in-addr.arpa. domain name pointer 216.156.170.228.ptr.us.xo.net [10800] 229.170.156.216.in-addr.arpa. domain name pointer 216.156.170.229.ptr.us.xo.net [10800] 230.170.156.216.in-addr.arpa. domain name pointer 216.156.170.230.ptr.us.xo.net [10800] 231.170.156.216.in-addr.arpa. domain name pointer 216.156.170.231.ptr.us.xo.net [10800] 232.170.156.216.in-addr.arpa. domain name pointer 216.156.170.232.ptr.us.xo.net [10800] 233.170.156.216.in-addr.arpa. domain name pointer 216.156.170.233.ptr.us.xo.net [10800] 234.170.156.216.in-addr.arpa. domain name pointer 216.156.170.234.ptr.us.xo.net [10800] 235.170.156.216.in-addr.arpa. domain name pointer 216.156.170.235.ptr.us.xo.net [10800] 236.170.156.216.in-addr.arpa. domain name pointer 216.156.170.236.ptr.us.xo.net [10800] 237.170.156.216.in-addr.arpa. domain name pointer 216.156.170.237.ptr.us.xo.net [10800] 238.170.156.216.in-addr.arpa. domain name pointer 216.156.170.238.ptr.us.xo.net [10800] 239.170.156.216.in-addr.arpa. domain name pointer 216.156.170.239.ptr.us.xo.net [10800] 240.170.156.216.in-addr.arpa. domain name pointer 216.156.170.240.ptr.us.xo.net [10800] 241.170.156.216.in-addr.arpa. domain name pointer 216.156.170.241.ptr.us.xo.net [10800] 242.170.156.216.in-addr.arpa. domain name pointer 216.156.170.242.ptr.us.xo.net [10800] 243.170.156.216.in-addr.arpa. domain name pointer 216.156.170.243.ptr.us.xo.net [10800] 244.170.156.216.in-addr.arpa. domain name pointer 216.156.170.244.ptr.us.xo.net [10800] 245.170.156.216.in-addr.arpa. domain name pointer 216.156.170.245.ptr.us.xo.net [10800] 246.170.156.216.in-addr.arpa. domain name pointer 216.156.170.246.ptr.us.xo.net [10800] 247.170.156.216.in-addr.arpa. domain name pointer 216.156.170.247.ptr.us.xo.net [10800] 248.170.156.216.in-addr.arpa. domain name pointer 216.156.170.248.ptr.us.xo.net [10800] 249.170.156.216.in-addr.arpa. domain name pointer 216.156.170.249.ptr.us.xo.net [10800] 250.170.156.216.in-addr.arpa. domain name pointer 216.156.170.250.ptr.us.xo.net [10800] 251.170.156.216.in-addr.arpa. domain name pointer 216.156.170.251.ptr.us.xo.net [10800] 252.170.156.216.in-addr.arpa. domain name pointer 216.156.170.252.ptr.us.xo.net [10800] 253.170.156.216.in-addr.arpa. domain name pointer 216.156.170.253.ptr.us.xo.net [10800] 254.170.156.216.in-addr.arpa. domain name pointer 216.156.170.254.ptr.us.xo.net [10800] 255.170.156.216.in-addr.arpa. domain name pointer 216.156.170.255.ptr.us.xo.net