[0] 0.186.39.160.in-addr.arpa.: domain name does not exist
[3600] 1.186.39.160.in-addr.arpa. domain name pointer butl-edge-1-vlan786-1.net.columbia.edu
[0] 2.186.39.160.in-addr.arpa.: domain name does not exist
[0] 3.186.39.160.in-addr.arpa.: domain name does not exist
[0] 4.186.39.160.in-addr.arpa.: domain name does not exist
[0] 5.186.39.160.in-addr.arpa.: domain name does not exist
[0] 6.186.39.160.in-addr.arpa.: domain name does not exist
[0] 7.186.39.160.in-addr.arpa.: domain name does not exist
[0] 8.186.39.160.in-addr.arpa.: domain name does not exist
[0] 9.186.39.160.in-addr.arpa.: domain name does not exist
[3600] 10.186.39.160.in-addr.arpa. domain name pointer ipc-113th.sas.columbia.edu
[3600] 11.186.39.160.in-addr.arpa. domain name pointer lithium.nwh.rhno.columbia.edu
[0] 12.186.39.160.in-addr.arpa.: domain name does not exist
[3600] 13.186.39.160.in-addr.arpa. domain name pointer six00w113cnet01.atg.columbia.edu
[3600] 14.186.39.160.in-addr.arpa. domain name pointer tamar.nwh.rhno.columbia.edu
[3600] 15.186.39.160.in-addr.arpa. domain name pointer joselebron.ire.columbia.edu
[0] 16.186.39.160.in-addr.arpa.: domain name does not exist
[0] 17.186.39.160.in-addr.arpa.: domain name does not exist
[0] 18.186.39.160.in-addr.arpa.: domain name does not exist
[0] 19.186.39.160.in-addr.arpa.: domain name does not exist
[0] 20.186.39.160.in-addr.arpa.: domain name does not exist
[0] 21.186.39.160.in-addr.arpa.: domain name does not exist
[0] 22.186.39.160.in-addr.arpa.: domain name does not exist
[0] 23.186.39.160.in-addr.arpa.: domain name does not exist
[0] 24.186.39.160.in-addr.arpa.: domain name does not exist
[0] 25.186.39.160.in-addr.arpa.: domain name does not exist
[0] 26.186.39.160.in-addr.arpa.: domain name does not exist
[0] 27.186.39.160.in-addr.arpa.: domain name does not exist
[0] 28.186.39.160.in-addr.arpa.: domain name does not exist
[0] 29.186.39.160.in-addr.arpa.: domain name does not exist
[0] 30.186.39.160.in-addr.arpa.: domain name does not exist
[0] 31.186.39.160.in-addr.arpa.: domain name does not exist
[0] 32.186.39.160.in-addr.arpa.: domain name does not exist
[0] 33.186.39.160.in-addr.arpa.: domain name does not exist
[0] 34.186.39.160.in-addr.arpa.: domain name does not exist
[0] 35.186.39.160.in-addr.arpa.: domain name does not exist
[0] 36.186.39.160.in-addr.arpa.: domain name does not exist
[0] 37.186.39.160.in-addr.arpa.: domain name does not exist
[0] 38.186.39.160.in-addr.arpa.: domain name does not exist
[0] 39.186.39.160.in-addr.arpa.: domain name does not exist
[0] 40.186.39.160.in-addr.arpa.: domain name does not exist
[0] 41.186.39.160.in-addr.arpa.: domain name does not exist
[0] 42.186.39.160.in-addr.arpa.: domain name does not exist
[0] 43.186.39.160.in-addr.arpa.: domain name does not exist
[0] 44.186.39.160.in-addr.arpa.: domain name does not exist
[0] 45.186.39.160.in-addr.arpa.: domain name does not exist
[0] 46.186.39.160.in-addr.arpa.: domain name does not exist
[0] 47.186.39.160.in-addr.arpa.: domain name does not exist
[0] 48.186.39.160.in-addr.arpa.: domain name does not exist
[0] 49.186.39.160.in-addr.arpa.: domain name does not exist
[3600] 50.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-50.dyn.columbia.edu
[3600] 51.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-51.dyn.columbia.edu
[3600] 52.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-52.dyn.columbia.edu
[3600] 53.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-53.dyn.columbia.edu
[3600] 54.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-54.dyn.columbia.edu
[3600] 55.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-55.dyn.columbia.edu
[3600] 56.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-56.dyn.columbia.edu
[3600] 57.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-57.dyn.columbia.edu
[3600] 58.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-58.dyn.columbia.edu
[3600] 59.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-59.dyn.columbia.edu
[3600] 60.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-60.dyn.columbia.edu
[3600] 61.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-61.dyn.columbia.edu
[3600] 62.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-62.dyn.columbia.edu
[3600] 63.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-63.dyn.columbia.edu
[3600] 64.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-64.dyn.columbia.edu
[3600] 65.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-65.dyn.columbia.edu
[3600] 66.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-66.dyn.columbia.edu
[3600] 67.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-67.dyn.columbia.edu
[3600] 68.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-68.dyn.columbia.edu
[3600] 69.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-69.dyn.columbia.edu
[3600] 70.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-70.dyn.columbia.edu
[3600] 71.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-71.dyn.columbia.edu
[3600] 72.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-72.dyn.columbia.edu
[3600] 73.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-73.dyn.columbia.edu
[3600] 74.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-74.dyn.columbia.edu
[3600] 75.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-75.dyn.columbia.edu
[3600] 76.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-76.dyn.columbia.edu
[3600] 77.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-77.dyn.columbia.edu
[3600] 78.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-78.dyn.columbia.edu
[3600] 79.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-79.dyn.columbia.edu
[3600] 80.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-80.dyn.columbia.edu
[3600] 81.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-81.dyn.columbia.edu
[3600] 82.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-82.dyn.columbia.edu
[3600] 83.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-83.dyn.columbia.edu
[3600] 84.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-84.dyn.columbia.edu
[3600] 85.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-85.dyn.columbia.edu
[3600] 86.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-86.dyn.columbia.edu
[3600] 87.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-87.dyn.columbia.edu
[3600] 88.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-88.dyn.columbia.edu
[3600] 89.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-89.dyn.columbia.edu
[3600] 90.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-90.dyn.columbia.edu
[3600] 91.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-91.dyn.columbia.edu
[3600] 92.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-92.dyn.columbia.edu
[3600] 93.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-93.dyn.columbia.edu
[3600] 94.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-94.dyn.columbia.edu
[3600] 95.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-95.dyn.columbia.edu
[3600] 96.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-96.dyn.columbia.edu
[3600] 97.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-97.dyn.columbia.edu
[3600] 98.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-98.dyn.columbia.edu
[3600] 99.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-99.dyn.columbia.edu
[3600] 100.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-100.dyn.columbia.edu
[3600] 101.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-101.dyn.columbia.edu
[3600] 102.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-102.dyn.columbia.edu
[3600] 103.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-103.dyn.columbia.edu
[3600] 104.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-104.dyn.columbia.edu
[3600] 105.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-105.dyn.columbia.edu
[3600] 106.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-106.dyn.columbia.edu
[3600] 107.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-107.dyn.columbia.edu
[3600] 108.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-108.dyn.columbia.edu
[3600] 109.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-109.dyn.columbia.edu
[3600] 110.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-110.dyn.columbia.edu
[3600] 111.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-111.dyn.columbia.edu
[3600] 112.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-112.dyn.columbia.edu
[3600] 113.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-113.dyn.columbia.edu
[3600] 114.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-114.dyn.columbia.edu
[3600] 115.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-115.dyn.columbia.edu
[3600] 116.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-116.dyn.columbia.edu
[3600] 117.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-117.dyn.columbia.edu
[3600] 118.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-118.dyn.columbia.edu
[3600] 119.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-119.dyn.columbia.edu
[3600] 120.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-120.dyn.columbia.edu
[3600] 121.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-121.dyn.columbia.edu
[3600] 122.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-122.dyn.columbia.edu
[3600] 123.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-123.dyn.columbia.edu
[3600] 124.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-124.dyn.columbia.edu
[3600] 125.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-125.dyn.columbia.edu
[3600] 126.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-126.dyn.columbia.edu
[3600] 127.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-127.dyn.columbia.edu
[3600] 128.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-128.dyn.columbia.edu
[3600] 129.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-129.dyn.columbia.edu
[3600] 130.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-130.dyn.columbia.edu
[3600] 131.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-131.dyn.columbia.edu
[3600] 132.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-132.dyn.columbia.edu
[3600] 133.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-133.dyn.columbia.edu
[3600] 134.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-134.dyn.columbia.edu
[3600] 135.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-135.dyn.columbia.edu
[3600] 136.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-136.dyn.columbia.edu
[3600] 137.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-137.dyn.columbia.edu
[3600] 138.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-138.dyn.columbia.edu
[3600] 139.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-139.dyn.columbia.edu
[3600] 140.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-140.dyn.columbia.edu
[3600] 141.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-141.dyn.columbia.edu
[3600] 142.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-142.dyn.columbia.edu
[3600] 143.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-143.dyn.columbia.edu
[3600] 144.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-144.dyn.columbia.edu
[3600] 145.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-145.dyn.columbia.edu
[3600] 146.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-146.dyn.columbia.edu
[3600] 147.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-147.dyn.columbia.edu
[3600] 148.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-148.dyn.columbia.edu
[3600] 149.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-149.dyn.columbia.edu
[3600] 150.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-150.dyn.columbia.edu
[3600] 151.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-151.dyn.columbia.edu
[3600] 152.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-152.dyn.columbia.edu
[3600] 153.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-153.dyn.columbia.edu
[3600] 154.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-154.dyn.columbia.edu
[3600] 155.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-155.dyn.columbia.edu
[3600] 156.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-156.dyn.columbia.edu
[3600] 157.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-157.dyn.columbia.edu
[3600] 158.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-158.dyn.columbia.edu
[3600] 159.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-159.dyn.columbia.edu
[3600] 160.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-160.dyn.columbia.edu
[3600] 161.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-161.dyn.columbia.edu
[3600] 162.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-162.dyn.columbia.edu
[3600] 163.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-163.dyn.columbia.edu
[3600] 164.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-164.dyn.columbia.edu
[3600] 165.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-165.dyn.columbia.edu
[3600] 166.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-166.dyn.columbia.edu
[3600] 167.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-167.dyn.columbia.edu
[3600] 168.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-168.dyn.columbia.edu
[3600] 169.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-169.dyn.columbia.edu
[3600] 170.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-170.dyn.columbia.edu
[3600] 171.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-171.dyn.columbia.edu
[3600] 172.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-172.dyn.columbia.edu
[3600] 173.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-173.dyn.columbia.edu
[3600] 174.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-174.dyn.columbia.edu
[3600] 175.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-175.dyn.columbia.edu
[3600] 176.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-176.dyn.columbia.edu
[3600] 177.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-177.dyn.columbia.edu
[3600] 178.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-178.dyn.columbia.edu
[3600] 179.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-179.dyn.columbia.edu
[3600] 180.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-180.dyn.columbia.edu
[3600] 181.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-181.dyn.columbia.edu
[3600] 182.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-182.dyn.columbia.edu
[3600] 183.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-183.dyn.columbia.edu
[3600] 184.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-184.dyn.columbia.edu
[3600] 185.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-185.dyn.columbia.edu
[3600] 186.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-186.dyn.columbia.edu
[3600] 187.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-187.dyn.columbia.edu
[3600] 188.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-188.dyn.columbia.edu
[3600] 189.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-189.dyn.columbia.edu
[3600] 190.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-190.dyn.columbia.edu
[3600] 191.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-191.dyn.columbia.edu
[3600] 192.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-192.dyn.columbia.edu
[3600] 193.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-193.dyn.columbia.edu
[3600] 194.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-194.dyn.columbia.edu
[3600] 195.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-195.dyn.columbia.edu
[3600] 196.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-196.dyn.columbia.edu
[3600] 197.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-197.dyn.columbia.edu
[3600] 198.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-198.dyn.columbia.edu
[3600] 199.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-199.dyn.columbia.edu
[3600] 200.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-200.dyn.columbia.edu
[3600] 201.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-201.dyn.columbia.edu
[3600] 202.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-202.dyn.columbia.edu
[3600] 203.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-203.dyn.columbia.edu
[3600] 204.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-204.dyn.columbia.edu
[3600] 205.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-205.dyn.columbia.edu
[3600] 206.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-206.dyn.columbia.edu
[3600] 207.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-207.dyn.columbia.edu
[3600] 208.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-208.dyn.columbia.edu
[3600] 209.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-209.dyn.columbia.edu
[3600] 210.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-210.dyn.columbia.edu
[3600] 211.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-211.dyn.columbia.edu
[3600] 212.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-212.dyn.columbia.edu
[3600] 213.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-213.dyn.columbia.edu
[3600] 214.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-214.dyn.columbia.edu
[3600] 215.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-215.dyn.columbia.edu
[3600] 216.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-216.dyn.columbia.edu
[3600] 217.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-217.dyn.columbia.edu
[3600] 218.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-218.dyn.columbia.edu
[3600] 219.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-219.dyn.columbia.edu
[3600] 220.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-220.dyn.columbia.edu
[3600] 221.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-221.dyn.columbia.edu
[3600] 222.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-222.dyn.columbia.edu
[3600] 223.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-223.dyn.columbia.edu
[3600] 224.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-224.dyn.columbia.edu
[3600] 225.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-225.dyn.columbia.edu
[3600] 226.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-226.dyn.columbia.edu
[3600] 227.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-227.dyn.columbia.edu
[3600] 228.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-228.dyn.columbia.edu
[3600] 229.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-229.dyn.columbia.edu
[3600] 230.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-230.dyn.columbia.edu
[3600] 231.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-231.dyn.columbia.edu
[3600] 232.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-232.dyn.columbia.edu
[3600] 233.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-233.dyn.columbia.edu
[3600] 234.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-234.dyn.columbia.edu
[3600] 235.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-235.dyn.columbia.edu
[3600] 236.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-236.dyn.columbia.edu
[3600] 237.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-237.dyn.columbia.edu
[3600] 238.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-238.dyn.columbia.edu
[3600] 239.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-239.dyn.columbia.edu
[3600] 240.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-240.dyn.columbia.edu
[3600] 241.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-241.dyn.columbia.edu
[3600] 242.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-242.dyn.columbia.edu
[3600] 243.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-243.dyn.columbia.edu
[3600] 244.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-244.dyn.columbia.edu
[3600] 245.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-245.dyn.columbia.edu
[3600] 246.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-246.dyn.columbia.edu
[3600] 247.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-247.dyn.columbia.edu
[3600] 248.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-248.dyn.columbia.edu
[3600] 249.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-249.dyn.columbia.edu
[3600] 250.186.39.160.in-addr.arpa. domain name pointer dyn-160-39-186-250.dyn.columbia.edu
[0] 251.186.39.160.in-addr.arpa.: domain name does not exist
[0] 252.186.39.160.in-addr.arpa.: domain name does not exist
[0] 253.186.39.160.in-addr.arpa.: domain name does not exist
[0] 254.186.39.160.in-addr.arpa.: domain name does not exist
[0] 255.186.39.160.in-addr.arpa.: domain name does not exist