[0] 0.7.239.18.in-addr.arpa.: domain name does not exist
[1800] 1.7.239.18.in-addr.arpa. domain name pointer macgregor-five-twelve.mit.edu
[1800] 2.7.239.18.in-addr.arpa. domain name pointer macgregor-five-thirteen.mit.edu
[1800] 3.7.239.18.in-addr.arpa. domain name pointer macgregor-five-fourteen.mit.edu
[1800] 4.7.239.18.in-addr.arpa. domain name pointer macgregor-five-fifteen.mit.edu
[1800] 5.7.239.18.in-addr.arpa. domain name pointer macgregor-five-sixteen.mit.edu
[1800] 6.7.239.18.in-addr.arpa. domain name pointer macgregor-five-seventeen.mit.edu
[1800] 7.7.239.18.in-addr.arpa. domain name pointer macgregor-five-eighteen.mit.edu
[1800] 8.7.239.18.in-addr.arpa. domain name pointer macgregor-five-nineteen.mit.edu
[1800] 9.7.239.18.in-addr.arpa. domain name pointer macgregor-five-twenty.mit.edu
[1800] 10.7.239.18.in-addr.arpa. domain name pointer macgregor-five-twenty-one.mit.edu
[1800] 11.7.239.18.in-addr.arpa. domain name pointer macgregor-five-twenty-two.mit.edu
[1800] 12.7.239.18.in-addr.arpa. domain name pointer macgregor-five-twenty-three.mit.edu
[1800] 13.7.239.18.in-addr.arpa. domain name pointer macgregor-five-twenty-four.mit.edu
[1800] 14.7.239.18.in-addr.arpa. domain name pointer macgregor-five-twenty-five.mit.edu
[1800] 15.7.239.18.in-addr.arpa. domain name pointer macgregor-five-twenty-six.mit.edu
[1800] 16.7.239.18.in-addr.arpa. domain name pointer macgregor-five-twenty-seven.mit.edu
[1800] 17.7.239.18.in-addr.arpa. domain name pointer macgregor-five-twenty-eight.mit.edu
[1800] 18.7.239.18.in-addr.arpa. domain name pointer macgregor-five-twenty-nine.mit.edu
[1800] 19.7.239.18.in-addr.arpa. domain name pointer macgregor-five-thirty.mit.edu
[1800] 20.7.239.18.in-addr.arpa. domain name pointer macgregor-five-thirty-one.mit.edu
[1800] 21.7.239.18.in-addr.arpa. domain name pointer macgregor-five-thirty-two.mit.edu
[1800] 22.7.239.18.in-addr.arpa. domain name pointer macgregor-five-thirty-three.mit.edu
[1800] 23.7.239.18.in-addr.arpa. domain name pointer macgregor-five-thirty-four.mit.edu
[1800] 24.7.239.18.in-addr.arpa. domain name pointer macgregor-five-thirty-five.mit.edu
[1800] 25.7.239.18.in-addr.arpa. domain name pointer macgregor-five-thirty-six.mit.edu
[1800] 26.7.239.18.in-addr.arpa. domain name pointer macgregor-five-thirty-seven.mit.edu
[1800] 27.7.239.18.in-addr.arpa. domain name pointer macgregor-five-thirty-eight.mit.edu
[1800] 28.7.239.18.in-addr.arpa. domain name pointer macgregor-five-thirty-nine.mit.edu
[1800] 29.7.239.18.in-addr.arpa. domain name pointer macgregor-five-forty.mit.edu
[1800] 30.7.239.18.in-addr.arpa. domain name pointer macgregor-five-forty-one.mit.edu
[1800] 31.7.239.18.in-addr.arpa. domain name pointer macgregor-five-forty-two.mit.edu
[1800] 32.7.239.18.in-addr.arpa. domain name pointer macgregor-five-forty-three.mit.edu
[1800] 33.7.239.18.in-addr.arpa. domain name pointer macgregor-five-forty-four.mit.edu
[1800] 34.7.239.18.in-addr.arpa. domain name pointer macgregor-five-forty-five.mit.edu
[1800] 35.7.239.18.in-addr.arpa. domain name pointer macgregor-five-forty-six.mit.edu
[1800] 36.7.239.18.in-addr.arpa. domain name pointer macgregor-five-forty-seven.mit.edu
[1800] 37.7.239.18.in-addr.arpa. domain name pointer macgregor-five-forty-eight.mit.edu
[1800] 38.7.239.18.in-addr.arpa. domain name pointer macgregor-five-forty-nine.mit.edu
[1800] 39.7.239.18.in-addr.arpa. domain name pointer macgregor-five-fifty.mit.edu
[1800] 40.7.239.18.in-addr.arpa. domain name pointer macgregor-five-fifty-one.mit.edu
[1800] 41.7.239.18.in-addr.arpa. domain name pointer macgregor-five-fifty-two.mit.edu
[1800] 42.7.239.18.in-addr.arpa. domain name pointer macgregor-five-fifty-three.mit.edu
[1800] 43.7.239.18.in-addr.arpa. domain name pointer macgregor-five-fifty-four.mit.edu
[1800] 44.7.239.18.in-addr.arpa. domain name pointer macgregor-five-fifty-five.mit.edu
[1800] 45.7.239.18.in-addr.arpa. domain name pointer macgregor-five-fifty-six.mit.edu
[1800] 46.7.239.18.in-addr.arpa. domain name pointer macgregor-five-fifty-seven.mit.edu
[1800] 47.7.239.18.in-addr.arpa. domain name pointer macgregor-five-fifty-eight.mit.edu
[1800] 48.7.239.18.in-addr.arpa. domain name pointer macgregor-five-fifty-nine.mit.edu
[1800] 49.7.239.18.in-addr.arpa. domain name pointer macgregor-five-sixty.mit.edu
[1800] 50.7.239.18.in-addr.arpa. domain name pointer macgregor-five-sixty-one.mit.edu
[1800] 51.7.239.18.in-addr.arpa. domain name pointer macgregor-five-sixty-two.mit.edu
[1800] 52.7.239.18.in-addr.arpa. domain name pointer macgregor-five-sixty-three.mit.edu
[1800] 53.7.239.18.in-addr.arpa. domain name pointer macgregor-five-sixty-four.mit.edu
[1800] 54.7.239.18.in-addr.arpa. domain name pointer macgregor-five-sixty-five.mit.edu
[1800] 55.7.239.18.in-addr.arpa. domain name pointer macgregor-five-sixty-six.mit.edu
[1800] 56.7.239.18.in-addr.arpa. domain name pointer macgregor-five-sixty-seven.mit.edu
[1800] 57.7.239.18.in-addr.arpa. domain name pointer macgregor-five-sixty-eight.mit.edu
[1800] 58.7.239.18.in-addr.arpa. domain name pointer macgregor-five-sixty-nine.mit.edu
[1800] 59.7.239.18.in-addr.arpa. domain name pointer macgregor-five-seventy.mit.edu
[1800] 60.7.239.18.in-addr.arpa. domain name pointer macgregor-five-seventy-one.mit.edu
[1800] 61.7.239.18.in-addr.arpa. domain name pointer macgregor-five-seventy-two.mit.edu
[1800] 62.7.239.18.in-addr.arpa. domain name pointer macgregor-five-seventy-three.mit.edu
[1800] 63.7.239.18.in-addr.arpa. domain name pointer macgregor-five-seventy-four.mit.edu
[1800] 64.7.239.18.in-addr.arpa. domain name pointer macgregor-five-seventy-five.mit.edu
[1800] 65.7.239.18.in-addr.arpa. domain name pointer macgregor-five-seventy-six.mit.edu
[1800] 66.7.239.18.in-addr.arpa. domain name pointer macgregor-five-seventy-seven.mit.edu
[1800] 67.7.239.18.in-addr.arpa. domain name pointer macgregor-five-seventy-eight.mit.edu
[1800] 68.7.239.18.in-addr.arpa. domain name pointer macgregor-five-seventy-nine.mit.edu
[1800] 69.7.239.18.in-addr.arpa. domain name pointer macgregor-five-eighty.mit.edu
[1800] 70.7.239.18.in-addr.arpa. domain name pointer macgregor-five-eighty-one.mit.edu
[1800] 71.7.239.18.in-addr.arpa. domain name pointer macgregor-five-eighty-two.mit.edu
[1800] 72.7.239.18.in-addr.arpa. domain name pointer macgregor-five-eighty-three.mit.edu
[1800] 73.7.239.18.in-addr.arpa. domain name pointer macgregor-five-eighty-four.mit.edu
[1800] 74.7.239.18.in-addr.arpa. domain name pointer macgregor-five-eighty-five.mit.edu
[1800] 75.7.239.18.in-addr.arpa. domain name pointer macgregor-five-eighty-six.mit.edu
[1800] 76.7.239.18.in-addr.arpa. domain name pointer macgregor-five-eighty-seven.mit.edu
[1800] 77.7.239.18.in-addr.arpa. domain name pointer macgregor-five-eighty-eight.mit.edu
[1800] 78.7.239.18.in-addr.arpa. domain name pointer macgregor-five-eighty-nine.mit.edu
[1800] 79.7.239.18.in-addr.arpa. domain name pointer macgregor-five-ninety.mit.edu
[1800] 80.7.239.18.in-addr.arpa. domain name pointer macgregor-five-ninety-one.mit.edu
[1800] 81.7.239.18.in-addr.arpa. domain name pointer macgregor-five-ninety-two.mit.edu
[1800] 82.7.239.18.in-addr.arpa. domain name pointer macgregor-five-ninety-three.mit.edu
[1800] 83.7.239.18.in-addr.arpa. domain name pointer macgregor-five-ninety-four.mit.edu
[1800] 84.7.239.18.in-addr.arpa. domain name pointer macgregor-five-ninety-five.mit.edu
[1800] 85.7.239.18.in-addr.arpa. domain name pointer macgregor-five-ninety-six.mit.edu
[1800] 86.7.239.18.in-addr.arpa. domain name pointer macgregor-five-ninety-seven.mit.edu
[1800] 87.7.239.18.in-addr.arpa. domain name pointer macgregor-five-ninety-eight.mit.edu
[1800] 88.7.239.18.in-addr.arpa. domain name pointer macgregor-five-ninety-nine.mit.edu
[1800] 89.7.239.18.in-addr.arpa. domain name pointer macgregor-six-hundred.mit.edu
[1800] 90.7.239.18.in-addr.arpa. domain name pointer macgregor-six-o-one.mit.edu
[1800] 91.7.239.18.in-addr.arpa. domain name pointer macgregor-six-o-two.mit.edu
[1800] 92.7.239.18.in-addr.arpa. domain name pointer macgregor-six-o-three.mit.edu
[1800] 93.7.239.18.in-addr.arpa. domain name pointer macgregor-six-o-four.mit.edu
[1800] 94.7.239.18.in-addr.arpa. domain name pointer macgregor-six-o-five.mit.edu
[1800] 95.7.239.18.in-addr.arpa. domain name pointer macgregor-six-o-six.mit.edu
[1800] 96.7.239.18.in-addr.arpa. domain name pointer macgregor-six-o-seven.mit.edu
[1800] 97.7.239.18.in-addr.arpa. domain name pointer macgregor-six-o-eight.mit.edu
[1800] 98.7.239.18.in-addr.arpa. domain name pointer macgregor-six-o-nine.mit.edu
[1800] 99.7.239.18.in-addr.arpa. domain name pointer macgregor-six-ten.mit.edu
[1800] 100.7.239.18.in-addr.arpa. domain name pointer macgregor-six-eleven.mit.edu
[1800] 101.7.239.18.in-addr.arpa. domain name pointer macgregor-six-twelve.mit.edu
[1800] 102.7.239.18.in-addr.arpa. domain name pointer macgregor-six-thirteen.mit.edu
[1800] 103.7.239.18.in-addr.arpa. domain name pointer macgregor-six-fourteen.mit.edu
[1800] 104.7.239.18.in-addr.arpa. domain name pointer macgregor-six-fifteen.mit.edu
[1800] 105.7.239.18.in-addr.arpa. domain name pointer macgregor-six-sixteen.mit.edu
[1800] 106.7.239.18.in-addr.arpa. domain name pointer macgregor-six-seventeen.mit.edu
[1800] 107.7.239.18.in-addr.arpa. domain name pointer macgregor-six-eighteen.mit.edu
[1800] 108.7.239.18.in-addr.arpa. domain name pointer macgregor-six-nineteen.mit.edu
[1800] 109.7.239.18.in-addr.arpa. domain name pointer macgregor-six-twenty.mit.edu
[1800] 110.7.239.18.in-addr.arpa. domain name pointer macgregor-six-twenty-one.mit.edu
[1800] 111.7.239.18.in-addr.arpa. domain name pointer macgregor-six-twenty-two.mit.edu
[1800] 112.7.239.18.in-addr.arpa. domain name pointer macgregor-six-twenty-three.mit.edu
[1800] 113.7.239.18.in-addr.arpa. domain name pointer macgregor-six-twenty-four.mit.edu
[1800] 114.7.239.18.in-addr.arpa. domain name pointer macgregor-six-twenty-five.mit.edu
[1800] 115.7.239.18.in-addr.arpa. domain name pointer macgregor-six-twenty-six.mit.edu
[1800] 116.7.239.18.in-addr.arpa. domain name pointer macgregor-six-twenty-seven.mit.edu
[1800] 117.7.239.18.in-addr.arpa. domain name pointer macgregor-six-twenty-eight.mit.edu
[1800] 118.7.239.18.in-addr.arpa. domain name pointer macgregor-six-twenty-nine.mit.edu
[1800] 119.7.239.18.in-addr.arpa. domain name pointer macgregor-six-thirty.mit.edu
[1800] 120.7.239.18.in-addr.arpa. domain name pointer macgregor-six-thirty-one.mit.edu
[1800] 121.7.239.18.in-addr.arpa. domain name pointer macgregor-six-thirty-two.mit.edu
[1800] 122.7.239.18.in-addr.arpa. domain name pointer macgregor-six-thirty-three.mit.edu
[1800] 123.7.239.18.in-addr.arpa. domain name pointer macgregor-six-thirty-four.mit.edu
[1800] 124.7.239.18.in-addr.arpa. domain name pointer macgregor-six-thirty-five.mit.edu
[1800] 125.7.239.18.in-addr.arpa. domain name pointer macgregor-six-thirty-six.mit.edu
[1800] 126.7.239.18.in-addr.arpa. domain name pointer macgregor-six-thirty-seven.mit.edu
[1800] 127.7.239.18.in-addr.arpa. domain name pointer macgregor-six-thirty-eight.mit.edu
[1800] 128.7.239.18.in-addr.arpa. domain name pointer macgregor-six-thirty-nine.mit.edu
[1800] 129.7.239.18.in-addr.arpa. domain name pointer macgregor-six-forty.mit.edu
[1800] 130.7.239.18.in-addr.arpa. domain name pointer macgregor-six-forty-one.mit.edu
[1800] 131.7.239.18.in-addr.arpa. domain name pointer macgregor-six-forty-two.mit.edu
[1800] 132.7.239.18.in-addr.arpa. domain name pointer macgregor-six-forty-three.mit.edu
[1800] 133.7.239.18.in-addr.arpa. domain name pointer macgregor-six-forty-four.mit.edu
[1800] 134.7.239.18.in-addr.arpa. domain name pointer macgregor-six-forty-five.mit.edu
[1800] 135.7.239.18.in-addr.arpa. domain name pointer macgregor-six-forty-six.mit.edu
[1800] 136.7.239.18.in-addr.arpa. domain name pointer macgregor-six-forty-seven.mit.edu
[1800] 137.7.239.18.in-addr.arpa. domain name pointer macgregor-six-forty-eight.mit.edu
[1800] 138.7.239.18.in-addr.arpa. domain name pointer macgregor-six-forty-nine.mit.edu
[1800] 139.7.239.18.in-addr.arpa. domain name pointer macgregor-six-fifty.mit.edu
[1800] 140.7.239.18.in-addr.arpa. domain name pointer macgregor-six-fifty-one.mit.edu
[1800] 141.7.239.18.in-addr.arpa. domain name pointer macgregor-six-fifty-two.mit.edu
[1800] 142.7.239.18.in-addr.arpa. domain name pointer macgregor-six-fifty-three.mit.edu
[1800] 143.7.239.18.in-addr.arpa. domain name pointer macgregor-six-fifty-four.mit.edu
[1800] 144.7.239.18.in-addr.arpa. domain name pointer macgregor-six-fifty-five.mit.edu
[1800] 145.7.239.18.in-addr.arpa. domain name pointer macgregor-six-fifty-six.mit.edu
[1800] 146.7.239.18.in-addr.arpa. domain name pointer macgregor-six-fifty-seven.mit.edu
[1800] 147.7.239.18.in-addr.arpa. domain name pointer macgregor-six-fifty-eight.mit.edu
[1800] 148.7.239.18.in-addr.arpa. domain name pointer macgregor-six-fifty-nine.mit.edu
[1800] 149.7.239.18.in-addr.arpa. domain name pointer macgregor-six-sixty.mit.edu
[1800] 150.7.239.18.in-addr.arpa. domain name pointer macgregor-six-sixty-one.mit.edu
[1800] 151.7.239.18.in-addr.arpa. domain name pointer macgregor-six-sixty-two.mit.edu
[1800] 152.7.239.18.in-addr.arpa. domain name pointer macgregor-six-sixty-three.mit.edu
[1800] 153.7.239.18.in-addr.arpa. domain name pointer macgregor-six-sixty-four.mit.edu
[1800] 154.7.239.18.in-addr.arpa. domain name pointer macgregor-six-sixty-five.mit.edu
[1800] 155.7.239.18.in-addr.arpa. domain name pointer macgregor-six-sixty-six.mit.edu
[1800] 156.7.239.18.in-addr.arpa. domain name pointer macgregor-six-sixty-seven.mit.edu
[1800] 157.7.239.18.in-addr.arpa. domain name pointer macgregor-six-sixty-eight.mit.edu
[1800] 158.7.239.18.in-addr.arpa. domain name pointer macgregor-six-sixty-nine.mit.edu
[1800] 159.7.239.18.in-addr.arpa. domain name pointer macgregor-six-seventy.mit.edu
[1800] 160.7.239.18.in-addr.arpa. domain name pointer macgregor-six-seventy-one.mit.edu
[1800] 161.7.239.18.in-addr.arpa. domain name pointer macgregor-six-seventy-two.mit.edu
[1800] 162.7.239.18.in-addr.arpa. domain name pointer macgregor-six-seventy-three.mit.edu
[1800] 163.7.239.18.in-addr.arpa. domain name pointer macgregor-six-seventy-four.mit.edu
[1800] 164.7.239.18.in-addr.arpa. domain name pointer macgregor-six-seventy-five.mit.edu
[1800] 165.7.239.18.in-addr.arpa. domain name pointer macgregor-six-seventy-six.mit.edu
[1800] 166.7.239.18.in-addr.arpa. domain name pointer macgregor-six-seventy-seven.mit.edu
[1800] 167.7.239.18.in-addr.arpa. domain name pointer macgregor-six-seventy-eight.mit.edu
[1800] 168.7.239.18.in-addr.arpa. domain name pointer macgregor-six-seventy-nine.mit.edu
[1800] 169.7.239.18.in-addr.arpa. domain name pointer macgregor-six-eighty.mit.edu
[1800] 170.7.239.18.in-addr.arpa. domain name pointer macgregor-six-eighty-one.mit.edu
[1800] 171.7.239.18.in-addr.arpa. domain name pointer macgregor-six-eighty-two.mit.edu
[1800] 172.7.239.18.in-addr.arpa. domain name pointer macgregor-six-eighty-three.mit.edu
[1800] 173.7.239.18.in-addr.arpa. domain name pointer macgregor-six-eighty-four.mit.edu
[1800] 174.7.239.18.in-addr.arpa. domain name pointer macgregor-six-eighty-five.mit.edu
[1800] 175.7.239.18.in-addr.arpa. domain name pointer macgregor-six-eighty-six.mit.edu
[1800] 176.7.239.18.in-addr.arpa. domain name pointer macgregor-six-eighty-seven.mit.edu
[1800] 177.7.239.18.in-addr.arpa. domain name pointer macgregor-six-eighty-eight.mit.edu
[1800] 178.7.239.18.in-addr.arpa. domain name pointer macgregor-six-eighty-nine.mit.edu
[1800] 179.7.239.18.in-addr.arpa. domain name pointer macgregor-six-ninety.mit.edu
[1800] 180.7.239.18.in-addr.arpa. domain name pointer macgregor-six-ninety-one.mit.edu
[1800] 181.7.239.18.in-addr.arpa. domain name pointer macgregor-six-ninety-two.mit.edu
[1800] 182.7.239.18.in-addr.arpa. domain name pointer macgregor-six-ninety-three.mit.edu
[1800] 183.7.239.18.in-addr.arpa. domain name pointer macgregor-six-ninety-four.mit.edu
[1800] 184.7.239.18.in-addr.arpa. domain name pointer macgregor-six-ninety-five.mit.edu
[1800] 185.7.239.18.in-addr.arpa. domain name pointer macgregor-six-ninety-six.mit.edu
[1800] 186.7.239.18.in-addr.arpa. domain name pointer macgregor-six-ninety-seven.mit.edu
[1800] 187.7.239.18.in-addr.arpa. domain name pointer macgregor-six-ninety-eight.mit.edu
[1800] 188.7.239.18.in-addr.arpa. domain name pointer macgregor-six-ninety-nine.mit.edu
[1800] 189.7.239.18.in-addr.arpa. domain name pointer macgregor-seven-hundred.mit.edu
[1800] 190.7.239.18.in-addr.arpa. domain name pointer macgregor-seven-o-one.mit.edu
[1800] 191.7.239.18.in-addr.arpa. domain name pointer macgregor-seven-o-two.mit.edu
[1800] 192.7.239.18.in-addr.arpa. domain name pointer macgregor-seven-o-three.mit.edu
[1800] 193.7.239.18.in-addr.arpa. domain name pointer macgregor-seven-o-four.mit.edu
[1800] 194.7.239.18.in-addr.arpa. domain name pointer macgregor-seven-o-five.mit.edu
[1800] 195.7.239.18.in-addr.arpa. domain name pointer macgregor-seven-o-six.mit.edu
[1800] 196.7.239.18.in-addr.arpa. domain name pointer macgregor-seven-o-seven.mit.edu
[1800] 197.7.239.18.in-addr.arpa. domain name pointer macgregor-seven-o-eight.mit.edu
[1800] 198.7.239.18.in-addr.arpa. domain name pointer macgregor-seven-o-nine.mit.edu
[1800] 199.7.239.18.in-addr.arpa. domain name pointer macgregor-seven-ten.mit.edu
[1800] 200.7.239.18.in-addr.arpa. domain name pointer macgregor-seven-eleven.mit.edu
[1800] 201.7.239.18.in-addr.arpa. domain name pointer macgregor-seven-twelve.mit.edu
[1800] 202.7.239.18.in-addr.arpa. domain name pointer macgregor-seven-thirteen.mit.edu
[1800] 203.7.239.18.in-addr.arpa. domain name pointer macgregor-seven-fourteen.mit.edu
[1800] 204.7.239.18.in-addr.arpa. domain name pointer macgregor-seven-fifteen.mit.edu
[1800] 205.7.239.18.in-addr.arpa. domain name pointer macgregor-seven-sixteen.mit.edu
[1800] 206.7.239.18.in-addr.arpa. domain name pointer macgregor-seven-seventeen.mit.edu
[1800] 207.7.239.18.in-addr.arpa. domain name pointer macgregor-seven-eighteen.mit.edu
[1800] 208.7.239.18.in-addr.arpa. domain name pointer macgregor-seven-nineteen.mit.edu
[1800] 209.7.239.18.in-addr.arpa. domain name pointer macgregor-seven-twenty.mit.edu
[1800] 210.7.239.18.in-addr.arpa. domain name pointer macgregor-seven-twenty-one.mit.edu
[1800] 211.7.239.18.in-addr.arpa. domain name pointer macgregor-seven-twenty-two.mit.edu
[1800] 212.7.239.18.in-addr.arpa. domain name pointer macgregor-seven-twenty-three.mit.edu
[1800] 213.7.239.18.in-addr.arpa. domain name pointer macgregor-seven-twenty-four.mit.edu
[1800] 214.7.239.18.in-addr.arpa. domain name pointer macgregor-seven-twenty-five.mit.edu
[1800] 215.7.239.18.in-addr.arpa. domain name pointer macgregor-seven-twenty-six.mit.edu
[1800] 216.7.239.18.in-addr.arpa. domain name pointer macgregor-seven-twenty-seven.mit.edu
[1800] 217.7.239.18.in-addr.arpa. domain name pointer macgregor-seven-twenty-eight.mit.edu
[1800] 218.7.239.18.in-addr.arpa. domain name pointer macgregor-seven-twenty-nine.mit.edu
[1800] 219.7.239.18.in-addr.arpa. domain name pointer macgregor-seven-thirty.mit.edu
[1800] 220.7.239.18.in-addr.arpa. domain name pointer macgregor-seven-thirty-one.mit.edu
[1800] 221.7.239.18.in-addr.arpa. domain name pointer macgregor-seven-thirty-two.mit.edu
[1800] 222.7.239.18.in-addr.arpa. domain name pointer macgregor-seven-thirty-three.mit.edu
[1800] 223.7.239.18.in-addr.arpa. domain name pointer macgregor-seven-thirty-four.mit.edu
[1800] 224.7.239.18.in-addr.arpa. domain name pointer macgregor-seven-thirty-five.mit.edu
[1800] 225.7.239.18.in-addr.arpa. domain name pointer macgregor-seven-thirty-six.mit.edu
[1800] 226.7.239.18.in-addr.arpa. domain name pointer macgregor-seven-thirty-seven.mit.edu
[1800] 227.7.239.18.in-addr.arpa. domain name pointer macgregor-seven-thirty-eight.mit.edu
[1800] 228.7.239.18.in-addr.arpa. domain name pointer macgregor-seven-thirty-nine.mit.edu
[1800] 229.7.239.18.in-addr.arpa. domain name pointer macgregor-seven-forty.mit.edu
[1800] 230.7.239.18.in-addr.arpa. domain name pointer macgregor-seven-forty-one.mit.edu
[1800] 231.7.239.18.in-addr.arpa. domain name pointer macgregor-seven-forty-two.mit.edu
[1800] 232.7.239.18.in-addr.arpa. domain name pointer macgregor-seven-forty-three.mit.edu
[1800] 233.7.239.18.in-addr.arpa. domain name pointer macgregor-seven-forty-four.mit.edu
[1800] 234.7.239.18.in-addr.arpa. domain name pointer macgregor-seven-forty-five.mit.edu
[1800] 235.7.239.18.in-addr.arpa. domain name pointer macgregor-seven-forty-six.mit.edu
[1800] 236.7.239.18.in-addr.arpa. domain name pointer macgregor-seven-forty-seven.mit.edu
[1800] 237.7.239.18.in-addr.arpa. domain name pointer macgregor-seven-forty-eight.mit.edu
[1800] 238.7.239.18.in-addr.arpa. domain name pointer macgregor-seven-forty-nine.mit.edu
[1800] 239.7.239.18.in-addr.arpa. domain name pointer macgregor-seven-fifty.mit.edu
[1800] 240.7.239.18.in-addr.arpa. domain name pointer macgregor-seven-fifty-one.mit.edu
[1800] 241.7.239.18.in-addr.arpa. domain name pointer macgregor-seven-fifty-two.mit.edu
[1800] 242.7.239.18.in-addr.arpa. domain name pointer macgregor-seven-fifty-three.mit.edu
[1800] 243.7.239.18.in-addr.arpa. domain name pointer macgregor-seven-fifty-four.mit.edu
[1800] 244.7.239.18.in-addr.arpa. domain name pointer macgregor-seven-fifty-five.mit.edu
[1800] 245.7.239.18.in-addr.arpa. domain name pointer macgregor-seven-fifty-six.mit.edu
[1800] 246.7.239.18.in-addr.arpa. domain name pointer macgregor-seven-fifty-seven.mit.edu
[1800] 247.7.239.18.in-addr.arpa. domain name pointer macgregor-seven-fifty-eight.mit.edu
[1800] 248.7.239.18.in-addr.arpa. domain name pointer macgregor-seven-fifty-nine.mit.edu
[1800] 249.7.239.18.in-addr.arpa. domain name pointer macgregor-seven-sixty.mit.edu
[1800] 250.7.239.18.in-addr.arpa. domain name pointer macgregor-seven-sixty-one.mit.edu
[0] 251.7.239.18.in-addr.arpa.: domain name does not exist
[0] 252.7.239.18.in-addr.arpa.: domain name does not exist
[0] 253.7.239.18.in-addr.arpa.: domain name does not exist
[0] 254.7.239.18.in-addr.arpa.: domain name does not exist
[0] 255.7.239.18.in-addr.arpa.: domain name does not exist