[86400] 0.89.181.81.in-addr.arpa. domain name pointer host0.synygy.is.ew.ro [86400] 1.89.181.81.in-addr.arpa. domain name pointer host1.synygy.is.ew.ro [86400] 2.89.181.81.in-addr.arpa. domain name pointer host2.synygy.is.ew.ro [86400] 3.89.181.81.in-addr.arpa. domain name pointer host3.synygy.is.ew.ro [86400] 4.89.181.81.in-addr.arpa. domain name pointer host4.synygy.is.ew.ro [86400] 5.89.181.81.in-addr.arpa. domain name pointer host5.synygy.is.ew.ro [86400] 6.89.181.81.in-addr.arpa. domain name pointer host6.synygy.is.ew.ro [86400] 7.89.181.81.in-addr.arpa. domain name pointer host7.synygy.is.ew.ro [86400] 8.89.181.81.in-addr.arpa. domain name pointer host0.xconnect.is.ew.ro [86400] 9.89.181.81.in-addr.arpa. domain name pointer host1.xconnect.is.ew.ro [86400] 10.89.181.81.in-addr.arpa. domain name pointer host2.xconnect.is.ew.ro [86400] 11.89.181.81.in-addr.arpa. domain name pointer host3.xconnect.is.ew.ro [86400] 12.89.181.81.in-addr.arpa. domain name pointer host4.xconnect.is.ew.ro [86400] 13.89.181.81.in-addr.arpa. domain name pointer host5.xconnect.is.ew.ro [86400] 14.89.181.81.in-addr.arpa. domain name pointer host6.xconnect.is.ew.ro [86400] 15.89.181.81.in-addr.arpa. domain name pointer host7.xconnect.is.ew.ro [86400] 16.89.181.81.in-addr.arpa. domain name pointer host0.xconnect.is.ew.ro [86400] 17.89.181.81.in-addr.arpa. domain name pointer host1.xconnect.is.ew.ro [86400] 18.89.181.81.in-addr.arpa. domain name pointer host2.xconnect.is.ew.ro [86400] 19.89.181.81.in-addr.arpa. domain name pointer host3.xconnect.is.ew.ro [86400] 20.89.181.81.in-addr.arpa. domain name pointer host4.xconnect.is.ew.ro [86400] 21.89.181.81.in-addr.arpa. domain name pointer host5.xconnect.is.ew.ro [86400] 22.89.181.81.in-addr.arpa. domain name pointer host6.xconnect.is.ew.ro [86400] 23.89.181.81.in-addr.arpa. domain name pointer host7.xconnect.is.ew.ro [86400] 24.89.181.81.in-addr.arpa. domain name pointer host8.xconnect.is.ew.ro [86400] 25.89.181.81.in-addr.arpa. domain name pointer host9.xconnect.is.ew.ro [86400] 26.89.181.81.in-addr.arpa. domain name pointer host10.xconnect.is.ew.ro [86400] 27.89.181.81.in-addr.arpa. domain name pointer host11.xconnect.is.ew.ro [86400] 28.89.181.81.in-addr.arpa. domain name pointer host12.xconnect.is.ew.ro [86400] 29.89.181.81.in-addr.arpa. domain name pointer host13.xconnect.is.ew.ro [86400] 30.89.181.81.in-addr.arpa. domain name pointer host14.xconnect.is.ew.ro [86400] 31.89.181.81.in-addr.arpa. domain name pointer host15.xconnect.is.ew.ro [0] 32.89.181.81.in-addr.arpa.: domain name does not exist [86400] 33.89.181.81.in-addr.arpa. domain name pointer vl32-ge0-r1-iasi.ew.ro [86400] 34.89.181.81.in-addr.arpa. domain name pointer romtranslat.is.ew.ro [0] 35.89.181.81.in-addr.arpa.: domain name does not exist [0] 36.89.181.81.in-addr.arpa.: domain name does not exist [86400] 37.89.181.81.in-addr.arpa. domain name pointer vl33-ge0-r1-iasi.ew.ro [86400] 38.89.181.81.in-addr.arpa. domain name pointer corona.is.ew.ro [0] 39.89.181.81.in-addr.arpa.: domain name does not exist [0] 40.89.181.81.in-addr.arpa.: domain name does not exist [86400] 41.89.181.81.in-addr.arpa. domain name pointer vl207-ge0-r1-iasi.ew.ro [86400] 42.89.181.81.in-addr.arpa. domain name pointer cipnet.is.ew.ro [0] 43.89.181.81.in-addr.arpa.: domain name does not exist [0] 44.89.181.81.in-addr.arpa.: domain name does not exist [86400] 45.89.181.81.in-addr.arpa. domain name pointer vl36-ge0-r1-iasi.ew.ro [86400] 46.89.181.81.in-addr.arpa. domain name pointer sanido.is.ew.ro [0] 47.89.181.81.in-addr.arpa.: domain name does not exist [0] 48.89.181.81.in-addr.arpa.: domain name does not exist [86400] 49.89.181.81.in-addr.arpa. domain name pointer vl208-ge0-r1-iasi.ew.ro [86400] 50.89.181.81.in-addr.arpa. domain name pointer voodoo.is.ew.ro [0] 51.89.181.81.in-addr.arpa.: domain name does not exist [0] 52.89.181.81.in-addr.arpa.: domain name does not exist [86400] 53.89.181.81.in-addr.arpa. domain name pointer vl209-ge0-r1-iasi.ew.ro [86400] 54.89.181.81.in-addr.arpa. domain name pointer netsolutions.is.ew.ro [0] 55.89.181.81.in-addr.arpa.: temporary failure in name resolution [0] 56.89.181.81.in-addr.arpa.: domain name does not exist [86400] 57.89.181.81.in-addr.arpa. domain name pointer vl210-ge0-r1-iasi.ew.ro [86400] 58.89.181.81.in-addr.arpa. domain name pointer dbfcomp.is.ew.ro [0] 59.89.181.81.in-addr.arpa.: domain name does not exist [0] 60.89.181.81.in-addr.arpa.: domain name does not exist [86400] 61.89.181.81.in-addr.arpa. domain name pointer vl211-ge0-r1-iasi.ew.ro [86400] 62.89.181.81.in-addr.arpa. domain name pointer itech3.is.ew.ro [0] 63.89.181.81.in-addr.arpa.: domain name does not exist [0] 64.89.181.81.in-addr.arpa.: temporary failure in name resolution [86400] 65.89.181.81.in-addr.arpa. domain name pointer host1.caroda.is.ew.ro [86400] 66.89.181.81.in-addr.arpa. domain name pointer host2.caroda.is.ew.ro [86400] 67.89.181.81.in-addr.arpa. domain name pointer host3.caroda.is.ew.ro [86400] 68.89.181.81.in-addr.arpa. domain name pointer host4.caroda.is.ew.ro [86400] 69.89.181.81.in-addr.arpa. domain name pointer host5.caroda.is.ew.ro [86400] 70.89.181.81.in-addr.arpa. domain name pointer host6.caroda.is.ew.ro [86400] 71.89.181.81.in-addr.arpa. domain name pointer host7.caroda.is.ew.ro [86400] 72.89.181.81.in-addr.arpa. domain name pointer host8.caroda.is.ew.ro [86400] 73.89.181.81.in-addr.arpa. domain name pointer host9.caroda.is.ew.ro [86400] 74.89.181.81.in-addr.arpa. domain name pointer host10.caroda.is.ew.ro [86400] 75.89.181.81.in-addr.arpa. domain name pointer host11.caroda.is.ew.ro [86400] 76.89.181.81.in-addr.arpa. domain name pointer host12.caroda.is.ew.ro [86400] 77.89.181.81.in-addr.arpa. domain name pointer host13.caroda.is.ew.ro [86400] 78.89.181.81.in-addr.arpa. domain name pointer host14.caroda.is.ew.ro [86400] 79.89.181.81.in-addr.arpa. domain name pointer host15.caroda.is.ew.ro [86400] 80.89.181.81.in-addr.arpa. domain name pointer host16.caroda.is.ew.ro [86400] 81.89.181.81.in-addr.arpa. domain name pointer host17.caroda.is.ew.ro [86400] 82.89.181.81.in-addr.arpa. domain name pointer host18.caroda.is.ew.ro [86400] 83.89.181.81.in-addr.arpa. domain name pointer host19.caroda.is.ew.ro [86400] 84.89.181.81.in-addr.arpa. domain name pointer host20.caroda.is.ew.ro [86400] 85.89.181.81.in-addr.arpa. domain name pointer host21.caroda.is.ew.ro [86400] 86.89.181.81.in-addr.arpa. domain name pointer host22.caroda.is.ew.ro [86400] 87.89.181.81.in-addr.arpa. domain name pointer host23.caroda.is.ew.ro [86400] 88.89.181.81.in-addr.arpa. domain name pointer host24.caroda.is.ew.ro [86400] 89.89.181.81.in-addr.arpa. domain name pointer host25.caroda.is.ew.ro [86400] 90.89.181.81.in-addr.arpa. domain name pointer host26.caroda.is.ew.ro [86400] 91.89.181.81.in-addr.arpa. domain name pointer host27.caroda.is.ew.ro [86400] 92.89.181.81.in-addr.arpa. domain name pointer host28.caroda.is.ew.ro [86400] 93.89.181.81.in-addr.arpa. domain name pointer host29.caroda.is.ew.ro [86400] 94.89.181.81.in-addr.arpa. domain name pointer host30.caroda.is.ew.ro [86400] 95.89.181.81.in-addr.arpa. domain name pointer host31.caroda.is.ew.ro [86400] 96.89.181.81.in-addr.arpa. domain name pointer host32.caroda.is.ew.ro [86400] 97.89.181.81.in-addr.arpa. domain name pointer host33.caroda.is.ew.ro [86400] 98.89.181.81.in-addr.arpa. domain name pointer host34.caroda.is.ew.ro [86400] 99.89.181.81.in-addr.arpa. domain name pointer host35.caroda.is.ew.ro [86400] 100.89.181.81.in-addr.arpa. domain name pointer host36.caroda.is.ew.ro [86400] 101.89.181.81.in-addr.arpa. domain name pointer host37.caroda.is.ew.ro [86400] 102.89.181.81.in-addr.arpa. domain name pointer host38.caroda.is.ew.ro [86400] 103.89.181.81.in-addr.arpa. domain name pointer host39.caroda.is.ew.ro [86400] 104.89.181.81.in-addr.arpa. domain name pointer host40.caroda.is.ew.ro [86400] 105.89.181.81.in-addr.arpa. domain name pointer host41.caroda.is.ew.ro [86400] 106.89.181.81.in-addr.arpa. domain name pointer host42.caroda.is.ew.ro [86400] 107.89.181.81.in-addr.arpa. domain name pointer host43.caroda.is.ew.ro [86400] 108.89.181.81.in-addr.arpa. domain name pointer host44.caroda.is.ew.ro [86400] 109.89.181.81.in-addr.arpa. domain name pointer host45.caroda.is.ew.ro [86400] 110.89.181.81.in-addr.arpa. domain name pointer host46.caroda.is.ew.ro [86400] 111.89.181.81.in-addr.arpa. domain name pointer host47.caroda.is.ew.ro [86400] 112.89.181.81.in-addr.arpa. domain name pointer host48.caroda.is.ew.ro [86400] 113.89.181.81.in-addr.arpa. domain name pointer host49.caroda.is.ew.ro [86400] 114.89.181.81.in-addr.arpa. domain name pointer host50.caroda.is.ew.ro [86400] 115.89.181.81.in-addr.arpa. domain name pointer host51.caroda.is.ew.ro [86400] 116.89.181.81.in-addr.arpa. domain name pointer host52.caroda.is.ew.ro [86400] 117.89.181.81.in-addr.arpa. domain name pointer host53.caroda.is.ew.ro [86400] 118.89.181.81.in-addr.arpa. domain name pointer host54.caroda.is.ew.ro [86400] 119.89.181.81.in-addr.arpa. domain name pointer host55.caroda.is.ew.ro [86400] 120.89.181.81.in-addr.arpa. domain name pointer host56.caroda.is.ew.ro [86400] 121.89.181.81.in-addr.arpa. domain name pointer host57.caroda.is.ew.ro [86400] 122.89.181.81.in-addr.arpa. domain name pointer host58.caroda.is.ew.ro [86400] 123.89.181.81.in-addr.arpa. domain name pointer host59.caroda.is.ew.ro [86400] 124.89.181.81.in-addr.arpa. domain name pointer host60.caroda.is.ew.ro [86400] 125.89.181.81.in-addr.arpa. domain name pointer host61.caroda.is.ew.ro [86400] 126.89.181.81.in-addr.arpa. domain name pointer host62.caroda.is.ew.ro [86400] 127.89.181.81.in-addr.arpa. domain name pointer host63.caroda.is.ew.ro [86400] 128.89.181.81.in-addr.arpa. domain name pointer host0.sanido.is.ew.ro [86400] 129.89.181.81.in-addr.arpa. domain name pointer host1.sanido.is.ew.ro [86400] 130.89.181.81.in-addr.arpa. domain name pointer host2.sanido.is.ew.ro [86400] 131.89.181.81.in-addr.arpa. domain name pointer host3.sanido.is.ew.ro [86400] 132.89.181.81.in-addr.arpa. domain name pointer host4.sanido.is.ew.ro [86400] 133.89.181.81.in-addr.arpa. domain name pointer host5.sanido.is.ew.ro [86400] 134.89.181.81.in-addr.arpa. domain name pointer host6.sanido.is.ew.ro [86400] 135.89.181.81.in-addr.arpa. domain name pointer host7.sanido.is.ew.ro [86400] 136.89.181.81.in-addr.arpa. domain name pointer host8.sanido.is.ew.ro [86400] 137.89.181.81.in-addr.arpa. domain name pointer host9.sanido.is.ew.ro [86400] 138.89.181.81.in-addr.arpa. domain name pointer host10.sanido.is.ew.ro [86400] 139.89.181.81.in-addr.arpa. domain name pointer host11.sanido.is.ew.ro [86400] 140.89.181.81.in-addr.arpa. domain name pointer host12.sanido.is.ew.ro [86400] 141.89.181.81.in-addr.arpa. domain name pointer host13.sanido.is.ew.ro [86400] 142.89.181.81.in-addr.arpa. domain name pointer host14.sanido.is.ew.ro [86400] 143.89.181.81.in-addr.arpa. domain name pointer host15.sanido.is.ew.ro [86400] 144.89.181.81.in-addr.arpa. domain name pointer host16.sanido.is.ew.ro [86400] 145.89.181.81.in-addr.arpa. domain name pointer host17.sanido.is.ew.ro [86400] 146.89.181.81.in-addr.arpa. domain name pointer host18.sanido.is.ew.ro [86400] 147.89.181.81.in-addr.arpa. domain name pointer host19.sanido.is.ew.ro [86400] 148.89.181.81.in-addr.arpa. domain name pointer host20.sanido.is.ew.ro [86400] 149.89.181.81.in-addr.arpa. domain name pointer host21.sanido.is.ew.ro [86400] 150.89.181.81.in-addr.arpa. domain name pointer host22.sanido.is.ew.ro [86400] 151.89.181.81.in-addr.arpa. domain name pointer host23.sanido.is.ew.ro [86400] 152.89.181.81.in-addr.arpa. domain name pointer host24.sanido.is.ew.ro [86400] 153.89.181.81.in-addr.arpa. domain name pointer host25.sanido.is.ew.ro [86400] 154.89.181.81.in-addr.arpa. domain name pointer host26.sanido.is.ew.ro [86400] 155.89.181.81.in-addr.arpa. domain name pointer host27.sanido.is.ew.ro [86400] 156.89.181.81.in-addr.arpa. domain name pointer host28.sanido.is.ew.ro [86400] 157.89.181.81.in-addr.arpa. domain name pointer host29.sanido.is.ew.ro [86400] 158.89.181.81.in-addr.arpa. domain name pointer host30.sanido.is.ew.ro [86400] 159.89.181.81.in-addr.arpa. domain name pointer host31.sanido.is.ew.ro [86400] 160.89.181.81.in-addr.arpa. domain name pointer host32.sanido.is.ew.ro [86400] 161.89.181.81.in-addr.arpa. domain name pointer host33.sanido.is.ew.ro [86400] 162.89.181.81.in-addr.arpa. domain name pointer host34.sanido.is.ew.ro [86400] 163.89.181.81.in-addr.arpa. domain name pointer host35.sanido.is.ew.ro [86400] 164.89.181.81.in-addr.arpa. domain name pointer host36.sanido.is.ew.ro [86400] 165.89.181.81.in-addr.arpa. domain name pointer host37.sanido.is.ew.ro [86400] 166.89.181.81.in-addr.arpa. domain name pointer host38.sanido.is.ew.ro [86400] 167.89.181.81.in-addr.arpa. domain name pointer host39.sanido.is.ew.ro [86400] 168.89.181.81.in-addr.arpa. domain name pointer host40.sanido.is.ew.ro [86400] 169.89.181.81.in-addr.arpa. domain name pointer host41.sanido.is.ew.ro [86400] 170.89.181.81.in-addr.arpa. domain name pointer host42.sanido.is.ew.ro [86400] 171.89.181.81.in-addr.arpa. domain name pointer host43.sanido.is.ew.ro [86400] 172.89.181.81.in-addr.arpa. domain name pointer host44.sanido.is.ew.ro [86400] 173.89.181.81.in-addr.arpa. domain name pointer host45.sanido.is.ew.ro [86400] 174.89.181.81.in-addr.arpa. domain name pointer host46.sanido.is.ew.ro [86400] 175.89.181.81.in-addr.arpa. domain name pointer host47.sanido.is.ew.ro [86400] 176.89.181.81.in-addr.arpa. domain name pointer host48.sanido.is.ew.ro [86400] 177.89.181.81.in-addr.arpa. domain name pointer host49.sanido.is.ew.ro [86400] 178.89.181.81.in-addr.arpa. domain name pointer host50.sanido.is.ew.ro [86400] 179.89.181.81.in-addr.arpa. domain name pointer host51.sanido.is.ew.ro [86400] 180.89.181.81.in-addr.arpa. domain name pointer host52.sanido.is.ew.ro [86400] 181.89.181.81.in-addr.arpa. domain name pointer host53.sanido.is.ew.ro [86400] 182.89.181.81.in-addr.arpa. domain name pointer host54.sanido.is.ew.ro [86400] 183.89.181.81.in-addr.arpa. domain name pointer host55.sanido.is.ew.ro [86400] 184.89.181.81.in-addr.arpa. domain name pointer host56.sanido.is.ew.ro [86400] 185.89.181.81.in-addr.arpa. domain name pointer host57.sanido.is.ew.ro [86400] 186.89.181.81.in-addr.arpa. domain name pointer host58.sanido.is.ew.ro [86400] 187.89.181.81.in-addr.arpa. domain name pointer host59.sanido.is.ew.ro [86400] 188.89.181.81.in-addr.arpa. domain name pointer host60.sanido.is.ew.ro [86400] 189.89.181.81.in-addr.arpa. domain name pointer host61.sanido.is.ew.ro [86400] 190.89.181.81.in-addr.arpa. domain name pointer host62.sanido.is.ew.ro [86400] 191.89.181.81.in-addr.arpa. domain name pointer host63.sanido.is.ew.ro [86400] 192.89.181.81.in-addr.arpa. domain name pointer host0.net-solutions.is.ew.ro [86400] 193.89.181.81.in-addr.arpa. domain name pointer host1.net-solutions.is.ew.ro [86400] 194.89.181.81.in-addr.arpa. domain name pointer host2.net-solutions.is.ew.ro [86400] 195.89.181.81.in-addr.arpa. domain name pointer host3.net-solutions.is.ew.ro [86400] 196.89.181.81.in-addr.arpa. domain name pointer host4.net-solutions.is.ew.ro [86400] 197.89.181.81.in-addr.arpa. domain name pointer host5.net-solutions.is.ew.ro [86400] 198.89.181.81.in-addr.arpa. domain name pointer host6.net-solutions.is.ew.ro [86400] 199.89.181.81.in-addr.arpa. domain name pointer host7.net-solutions.is.ew.ro [86400] 200.89.181.81.in-addr.arpa. domain name pointer host8.net-solutions.is.ew.ro [86400] 201.89.181.81.in-addr.arpa. domain name pointer host9.net-solutions.is.ew.ro [86400] 202.89.181.81.in-addr.arpa. domain name pointer host10.net-solutions.is.ew.ro [86400] 203.89.181.81.in-addr.arpa. domain name pointer host11.net-solutions.is.ew.ro [86400] 204.89.181.81.in-addr.arpa. domain name pointer host12.net-solutions.is.ew.ro [86400] 205.89.181.81.in-addr.arpa. domain name pointer host13.net-solutions.is.ew.ro [86400] 206.89.181.81.in-addr.arpa. domain name pointer host14.net-solutions.is.ew.ro [86400] 207.89.181.81.in-addr.arpa. domain name pointer host15.net-solutions.is.ew.ro [86400] 208.89.181.81.in-addr.arpa. domain name pointer host16.net-solutions.is.ew.ro [86400] 209.89.181.81.in-addr.arpa. domain name pointer host17.net-solutions.is.ew.ro [86400] 210.89.181.81.in-addr.arpa. domain name pointer host18.net-solutions.is.ew.ro [86400] 211.89.181.81.in-addr.arpa. domain name pointer host19.net-solutions.is.ew.ro [86400] 212.89.181.81.in-addr.arpa. domain name pointer host20.net-solutions.is.ew.ro [86400] 213.89.181.81.in-addr.arpa. domain name pointer host21.net-solutions.is.ew.ro [86400] 214.89.181.81.in-addr.arpa. domain name pointer host22.net-solutions.is.ew.ro [86400] 215.89.181.81.in-addr.arpa. domain name pointer host23.net-solutions.is.ew.ro [86400] 216.89.181.81.in-addr.arpa. domain name pointer host24.net-solutions.is.ew.ro [86400] 217.89.181.81.in-addr.arpa. domain name pointer host25.net-solutions.is.ew.ro [86400] 218.89.181.81.in-addr.arpa. domain name pointer host26.net-solutions.is.ew.ro [86400] 219.89.181.81.in-addr.arpa. domain name pointer host27.net-solutions.is.ew.ro [86400] 220.89.181.81.in-addr.arpa. domain name pointer host28.net-solutions.is.ew.ro [86400] 221.89.181.81.in-addr.arpa. domain name pointer host29.net-solutions.is.ew.ro [86400] 222.89.181.81.in-addr.arpa. domain name pointer host30.net-solutions.is.ew.ro [86400] 223.89.181.81.in-addr.arpa. domain name pointer host31.net-solutions.is.ew.ro [0] 224.89.181.81.in-addr.arpa.: domain name does not exist [0] 225.89.181.81.in-addr.arpa.: domain name does not exist [0] 226.89.181.81.in-addr.arpa.: domain name does not exist [0] 227.89.181.81.in-addr.arpa.: domain name does not exist [0] 228.89.181.81.in-addr.arpa.: domain name does not exist [0] 229.89.181.81.in-addr.arpa.: domain name does not exist [0] 230.89.181.81.in-addr.arpa.: domain name does not exist [0] 231.89.181.81.in-addr.arpa.: domain name does not exist [0] 232.89.181.81.in-addr.arpa.: domain name does not exist [0] 233.89.181.81.in-addr.arpa.: domain name does not exist [0] 234.89.181.81.in-addr.arpa.: domain name does not exist [0] 235.89.181.81.in-addr.arpa.: domain name does not exist [0] 236.89.181.81.in-addr.arpa.: domain name does not exist [0] 237.89.181.81.in-addr.arpa.: domain name does not exist [0] 238.89.181.81.in-addr.arpa.: domain name does not exist [0] 239.89.181.81.in-addr.arpa.: domain name does not exist [0] 240.89.181.81.in-addr.arpa.: domain name does not exist [0] 241.89.181.81.in-addr.arpa.: domain name does not exist [0] 242.89.181.81.in-addr.arpa.: domain name does not exist [0] 243.89.181.81.in-addr.arpa.: domain name does not exist [0] 244.89.181.81.in-addr.arpa.: domain name does not exist [0] 245.89.181.81.in-addr.arpa.: domain name does not exist [0] 246.89.181.81.in-addr.arpa.: domain name does not exist [0] 247.89.181.81.in-addr.arpa.: domain name does not exist [0] 248.89.181.81.in-addr.arpa.: domain name does not exist [0] 249.89.181.81.in-addr.arpa.: domain name does not exist [0] 250.89.181.81.in-addr.arpa.: domain name does not exist [0] 251.89.181.81.in-addr.arpa.: domain name does not exist [0] 252.89.181.81.in-addr.arpa.: domain name does not exist [0] 253.89.181.81.in-addr.arpa.: domain name does not exist [0] 254.89.181.81.in-addr.arpa.: domain name does not exist [0] 255.89.181.81.in-addr.arpa.: domain name does not exist