[0] 0.52.189.18.in-addr.arpa.: domain name does not exist
[0] 1.52.189.18.in-addr.arpa.: domain name does not exist
[0] 2.52.189.18.in-addr.arpa.: domain name does not exist
[0] 3.52.189.18.in-addr.arpa.: domain name does not exist
[0] 4.52.189.18.in-addr.arpa.: domain name does not exist
[60] 5.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-5.dyn.MIT.EDU
[60] 6.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-6.dyn.MIT.EDU
[60] 7.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-7.dyn.MIT.EDU
[60] 8.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-8.dyn.MIT.EDU
[0] 9.52.189.18.in-addr.arpa.: domain name does not exist
[60] 10.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-10.dyn.MIT.EDU
[60] 11.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-11.dyn.MIT.EDU
[0] 12.52.189.18.in-addr.arpa.: domain name does not exist
[60] 13.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-13.dyn.MIT.EDU
[60] 14.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-14.dyn.MIT.EDU
[60] 15.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-15.dyn.MIT.EDU
[60] 16.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-16.dyn.MIT.EDU
[60] 17.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-17.dyn.MIT.EDU
[0] 18.52.189.18.in-addr.arpa.: domain name does not exist
[0] 19.52.189.18.in-addr.arpa.: domain name does not exist
[0] 20.52.189.18.in-addr.arpa.: domain name does not exist
[60] 21.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-21.dyn.MIT.EDU
[0] 22.52.189.18.in-addr.arpa.: domain name does not exist
[60] 23.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-23.dyn.MIT.EDU
[0] 24.52.189.18.in-addr.arpa.: domain name does not exist
[60] 25.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-25.dyn.MIT.EDU
[60] 26.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-26.dyn.MIT.EDU
[0] 27.52.189.18.in-addr.arpa.: domain name does not exist
[0] 28.52.189.18.in-addr.arpa.: domain name does not exist
[60] 29.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-29.dyn.MIT.EDU
[60] 30.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-30.dyn.MIT.EDU
[0] 31.52.189.18.in-addr.arpa.: domain name does not exist
[0] 32.52.189.18.in-addr.arpa.: domain name does not exist
[60] 33.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-33.dyn.MIT.EDU
[60] 34.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-34.dyn.MIT.EDU
[60] 35.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-35.dyn.MIT.EDU
[60] 36.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-36.dyn.MIT.EDU
[0] 37.52.189.18.in-addr.arpa.: domain name does not exist
[60] 38.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-38.dyn.MIT.EDU
[60] 39.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-39.dyn.MIT.EDU
[0] 40.52.189.18.in-addr.arpa.: domain name does not exist
[0] 41.52.189.18.in-addr.arpa.: domain name does not exist
[0] 42.52.189.18.in-addr.arpa.: domain name does not exist
[0] 43.52.189.18.in-addr.arpa.: domain name does not exist
[60] 44.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-44.dyn.MIT.EDU
[0] 45.52.189.18.in-addr.arpa.: domain name does not exist
[0] 46.52.189.18.in-addr.arpa.: domain name does not exist
[60] 47.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-47.dyn.MIT.EDU
[0] 48.52.189.18.in-addr.arpa.: domain name does not exist
[0] 49.52.189.18.in-addr.arpa.: domain name does not exist
[0] 50.52.189.18.in-addr.arpa.: domain name does not exist
[0] 51.52.189.18.in-addr.arpa.: domain name does not exist
[60] 52.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-52.dyn.MIT.EDU
[0] 53.52.189.18.in-addr.arpa.: domain name does not exist
[0] 54.52.189.18.in-addr.arpa.: domain name does not exist
[60] 55.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-55.dyn.MIT.EDU
[60] 56.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-56.dyn.MIT.EDU
[60] 57.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-57.dyn.MIT.EDU
[0] 58.52.189.18.in-addr.arpa.: domain name does not exist
[0] 59.52.189.18.in-addr.arpa.: domain name does not exist
[60] 60.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-60.dyn.MIT.EDU
[60] 61.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-61.dyn.MIT.EDU
[0] 62.52.189.18.in-addr.arpa.: domain name does not exist
[0] 63.52.189.18.in-addr.arpa.: domain name does not exist
[60] 64.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-64.dyn.MIT.EDU
[60] 65.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-65.dyn.MIT.EDU
[60] 66.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-66.dyn.MIT.EDU
[60] 67.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-67.dyn.MIT.EDU
[0] 68.52.189.18.in-addr.arpa.: domain name does not exist
[60] 69.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-69.dyn.MIT.EDU
[0] 70.52.189.18.in-addr.arpa.: domain name does not exist
[60] 71.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-71.dyn.MIT.EDU
[0] 72.52.189.18.in-addr.arpa.: domain name does not exist
[60] 73.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-73.dyn.MIT.EDU
[0] 74.52.189.18.in-addr.arpa.: domain name does not exist
[0] 75.52.189.18.in-addr.arpa.: domain name does not exist
[0] 76.52.189.18.in-addr.arpa.: domain name does not exist
[0] 77.52.189.18.in-addr.arpa.: domain name does not exist
[0] 78.52.189.18.in-addr.arpa.: domain name does not exist
[60] 79.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-79.dyn.MIT.EDU
[60] 80.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-80.dyn.MIT.EDU
[0] 81.52.189.18.in-addr.arpa.: domain name does not exist
[60] 82.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-82.dyn.MIT.EDU
[60] 83.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-83.dyn.MIT.EDU
[60] 84.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-84.dyn.MIT.EDU
[60] 85.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-85.dyn.MIT.EDU
[60] 86.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-86.dyn.MIT.EDU
[0] 87.52.189.18.in-addr.arpa.: domain name does not exist
[60] 88.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-88.dyn.MIT.EDU
[60] 89.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-89.dyn.MIT.EDU
[0] 90.52.189.18.in-addr.arpa.: domain name does not exist
[60] 91.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-91.dyn.MIT.EDU
[0] 92.52.189.18.in-addr.arpa.: domain name does not exist
[0] 93.52.189.18.in-addr.arpa.: domain name does not exist
[0] 94.52.189.18.in-addr.arpa.: domain name does not exist
[0] 95.52.189.18.in-addr.arpa.: domain name does not exist
[60] 96.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-96.dyn.MIT.EDU
[0] 97.52.189.18.in-addr.arpa.: domain name does not exist
[0] 98.52.189.18.in-addr.arpa.: domain name does not exist
[0] 99.52.189.18.in-addr.arpa.: domain name does not exist
[0] 100.52.189.18.in-addr.arpa.: domain name does not exist
[0] 101.52.189.18.in-addr.arpa.: domain name does not exist
[60] 102.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-102.dyn.MIT.EDU
[60] 103.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-103.dyn.MIT.EDU
[0] 104.52.189.18.in-addr.arpa.: domain name does not exist
[60] 105.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-105.dyn.MIT.EDU
[0] 106.52.189.18.in-addr.arpa.: domain name does not exist
[0] 107.52.189.18.in-addr.arpa.: domain name does not exist
[0] 108.52.189.18.in-addr.arpa.: domain name does not exist
[0] 109.52.189.18.in-addr.arpa.: domain name does not exist
[60] 110.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-110.dyn.MIT.EDU
[60] 111.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-111.dyn.MIT.EDU
[0] 112.52.189.18.in-addr.arpa.: domain name does not exist
[60] 113.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-113.dyn.MIT.EDU
[0] 114.52.189.18.in-addr.arpa.: domain name does not exist
[60] 115.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-115.dyn.MIT.EDU
[0] 116.52.189.18.in-addr.arpa.: domain name does not exist
[0] 117.52.189.18.in-addr.arpa.: domain name does not exist
[0] 118.52.189.18.in-addr.arpa.: domain name does not exist
[60] 119.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-119.dyn.MIT.EDU
[60] 120.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-120.dyn.MIT.EDU
[60] 121.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-121.dyn.MIT.EDU
[60] 122.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-122.dyn.MIT.EDU
[0] 123.52.189.18.in-addr.arpa.: domain name does not exist
[60] 124.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-124.dyn.MIT.EDU
[60] 125.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-125.dyn.MIT.EDU
[0] 126.52.189.18.in-addr.arpa.: domain name does not exist
[0] 127.52.189.18.in-addr.arpa.: domain name does not exist
[0] 128.52.189.18.in-addr.arpa.: domain name does not exist
[60] 129.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-129.dyn.MIT.EDU
[60] 130.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-130.dyn.MIT.EDU
[0] 131.52.189.18.in-addr.arpa.: domain name does not exist
[60] 132.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-132.dyn.MIT.EDU
[0] 133.52.189.18.in-addr.arpa.: domain name does not exist
[0] 134.52.189.18.in-addr.arpa.: domain name does not exist
[60] 135.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-135.dyn.MIT.EDU
[60] 136.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-136.dyn.MIT.EDU
[0] 137.52.189.18.in-addr.arpa.: domain name does not exist
[60] 138.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-138.dyn.MIT.EDU
[0] 139.52.189.18.in-addr.arpa.: domain name does not exist
[60] 140.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-140.dyn.MIT.EDU
[0] 141.52.189.18.in-addr.arpa.: domain name does not exist
[0] 142.52.189.18.in-addr.arpa.: domain name does not exist
[60] 143.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-143.dyn.MIT.EDU
[60] 144.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-144.dyn.MIT.EDU
[60] 145.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-145.dyn.MIT.EDU
[0] 146.52.189.18.in-addr.arpa.: domain name does not exist
[60] 147.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-147.dyn.MIT.EDU
[60] 148.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-148.dyn.MIT.EDU
[60] 149.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-149.dyn.MIT.EDU
[0] 150.52.189.18.in-addr.arpa.: domain name does not exist
[0] 151.52.189.18.in-addr.arpa.: domain name does not exist
[60] 152.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-152.dyn.MIT.EDU
[60] 153.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-153.dyn.MIT.EDU
[0] 154.52.189.18.in-addr.arpa.: domain name does not exist
[0] 155.52.189.18.in-addr.arpa.: domain name does not exist
[60] 156.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-156.dyn.MIT.EDU
[60] 157.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-157.dyn.MIT.EDU
[60] 158.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-158.dyn.MIT.EDU
[60] 159.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-159.dyn.MIT.EDU
[60] 160.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-160.dyn.MIT.EDU
[0] 161.52.189.18.in-addr.arpa.: domain name does not exist
[60] 162.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-162.dyn.MIT.EDU
[60] 163.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-163.dyn.MIT.EDU
[60] 164.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-164.dyn.MIT.EDU
[60] 165.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-165.dyn.MIT.EDU
[60] 166.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-166.dyn.MIT.EDU
[0] 167.52.189.18.in-addr.arpa.: domain name does not exist
[0] 168.52.189.18.in-addr.arpa.: domain name does not exist
[60] 169.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-169.dyn.MIT.EDU
[60] 170.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-170.dyn.MIT.EDU
[60] 171.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-171.dyn.MIT.EDU
[60] 172.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-172.dyn.MIT.EDU
[0] 173.52.189.18.in-addr.arpa.: domain name does not exist
[0] 174.52.189.18.in-addr.arpa.: domain name does not exist
[0] 175.52.189.18.in-addr.arpa.: domain name does not exist
[0] 176.52.189.18.in-addr.arpa.: domain name does not exist
[0] 177.52.189.18.in-addr.arpa.: domain name does not exist
[60] 178.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-178.dyn.MIT.EDU
[60] 179.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-179.dyn.MIT.EDU
[60] 180.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-180.dyn.MIT.EDU
[60] 181.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-181.dyn.MIT.EDU
[0] 182.52.189.18.in-addr.arpa.: domain name does not exist
[0] 183.52.189.18.in-addr.arpa.: domain name does not exist
[0] 184.52.189.18.in-addr.arpa.: domain name does not exist
[0] 185.52.189.18.in-addr.arpa.: domain name does not exist
[0] 186.52.189.18.in-addr.arpa.: domain name does not exist
[0] 187.52.189.18.in-addr.arpa.: domain name does not exist
[60] 188.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-188.dyn.MIT.EDU
[60] 189.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-189.dyn.MIT.EDU
[0] 190.52.189.18.in-addr.arpa.: domain name does not exist
[0] 191.52.189.18.in-addr.arpa.: domain name does not exist
[60] 192.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-192.dyn.MIT.EDU
[0] 193.52.189.18.in-addr.arpa.: domain name does not exist
[60] 194.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-194.dyn.MIT.EDU
[60] 195.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-195.dyn.MIT.EDU
[0] 196.52.189.18.in-addr.arpa.: domain name does not exist
[60] 197.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-197.dyn.MIT.EDU
[0] 198.52.189.18.in-addr.arpa.: domain name does not exist
[0] 199.52.189.18.in-addr.arpa.: domain name does not exist
[60] 200.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-200.dyn.MIT.EDU
[60] 201.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-201.dyn.MIT.EDU
[0] 202.52.189.18.in-addr.arpa.: domain name does not exist
[60] 203.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-203.dyn.MIT.EDU
[0] 204.52.189.18.in-addr.arpa.: domain name does not exist
[60] 205.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-205.dyn.MIT.EDU
[0] 206.52.189.18.in-addr.arpa.: domain name does not exist
[60] 207.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-207.dyn.MIT.EDU
[0] 208.52.189.18.in-addr.arpa.: domain name does not exist
[0] 209.52.189.18.in-addr.arpa.: domain name does not exist
[60] 210.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-210.dyn.MIT.EDU
[0] 211.52.189.18.in-addr.arpa.: domain name does not exist
[60] 212.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-212.dyn.MIT.EDU
[0] 213.52.189.18.in-addr.arpa.: domain name does not exist
[60] 214.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-214.dyn.MIT.EDU
[0] 215.52.189.18.in-addr.arpa.: domain name does not exist
[0] 216.52.189.18.in-addr.arpa.: domain name does not exist
[60] 217.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-217.dyn.MIT.EDU
[0] 218.52.189.18.in-addr.arpa.: domain name does not exist
[60] 219.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-219.dyn.MIT.EDU
[60] 220.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-220.dyn.MIT.EDU
[60] 221.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-221.dyn.MIT.EDU
[0] 222.52.189.18.in-addr.arpa.: domain name does not exist
[0] 223.52.189.18.in-addr.arpa.: domain name does not exist
[0] 224.52.189.18.in-addr.arpa.: domain name does not exist
[0] 225.52.189.18.in-addr.arpa.: domain name does not exist
[0] 226.52.189.18.in-addr.arpa.: domain name does not exist
[60] 227.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-227.dyn.MIT.EDU
[60] 228.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-228.dyn.MIT.EDU
[60] 229.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-229.dyn.MIT.EDU
[60] 230.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-230.dyn.MIT.EDU
[0] 231.52.189.18.in-addr.arpa.: domain name does not exist
[0] 232.52.189.18.in-addr.arpa.: domain name does not exist
[0] 233.52.189.18.in-addr.arpa.: domain name does not exist
[0] 234.52.189.18.in-addr.arpa.: domain name does not exist
[60] 235.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-235.dyn.MIT.EDU
[60] 236.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-236.dyn.MIT.EDU
[60] 237.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-237.dyn.MIT.EDU
[0] 238.52.189.18.in-addr.arpa.: domain name does not exist
[60] 239.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-239.dyn.MIT.EDU
[0] 240.52.189.18.in-addr.arpa.: domain name does not exist
[0] 241.52.189.18.in-addr.arpa.: domain name does not exist
[60] 242.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-242.dyn.MIT.EDU
[0] 243.52.189.18.in-addr.arpa.: domain name does not exist
[60] 244.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-244.dyn.MIT.EDU
[0] 245.52.189.18.in-addr.arpa.: domain name does not exist
[0] 246.52.189.18.in-addr.arpa.: domain name does not exist
[0] 247.52.189.18.in-addr.arpa.: domain name does not exist
[0] 248.52.189.18.in-addr.arpa.: domain name does not exist
[0] 249.52.189.18.in-addr.arpa.: domain name does not exist
[60] 250.52.189.18.in-addr.arpa. domain name pointer dhcp-18-189-52-250.dyn.MIT.EDU
[0] 251.52.189.18.in-addr.arpa.: domain name does not exist
[0] 252.52.189.18.in-addr.arpa.: domain name does not exist
[0] 253.52.189.18.in-addr.arpa.: domain name does not exist
[0] 254.52.189.18.in-addr.arpa.: domain name does not exist
[0] 255.52.189.18.in-addr.arpa.: domain name does not exist