Summary
| ASN | AS3320 Deutsche Telekom AG |
| BGP | 80.128.0.0/12 |
| IPs with RDNS | 256 |
| Hosted Domains | 0 |
| Pingable IPs | 74 |
| Router IPs | 0 |
| 80.135.195.0 | p5087c300.dip0.t-ipconnect.de | 0 |  | |
| 80.135.195.1 | p5087c301.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.2 | p5087c302.dip0.t-ipconnect.de | 0 |  | |
| 80.135.195.3 | p5087c303.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.4 | p5087c304.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.5 | p5087c305.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.6 | p5087c306.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.7 | p5087c307.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.8 | p5087c308.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.9 | p5087c309.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.10 | p5087c30a.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.11 | p5087c30b.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.12 | p5087c30c.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.13 | p5087c30d.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.14 | p5087c30e.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.15 | p5087c30f.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.16 | p5087c310.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.17 | p5087c311.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.18 | p5087c312.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.19 | p5087c313.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.20 | p5087c314.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.21 | p5087c315.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.22 | p5087c316.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.23 | p5087c317.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.24 | p5087c318.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.25 | p5087c319.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.26 | p5087c31a.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.27 | p5087c31b.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.28 | p5087c31c.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.29 | p5087c31d.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.30 | p5087c31e.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.31 | p5087c31f.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.32 | p5087c320.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.33 | p5087c321.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.34 | p5087c322.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.35 | p5087c323.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.36 | p5087c324.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.37 | p5087c325.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.38 | p5087c326.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.39 | p5087c327.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.40 | p5087c328.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.41 | p5087c329.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.42 | p5087c32a.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.43 | p5087c32b.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.44 | p5087c32c.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.45 | p5087c32d.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.46 | p5087c32e.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.47 | p5087c32f.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.48 | p5087c330.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.49 | p5087c331.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.50 | p5087c332.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.51 | p5087c333.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.52 | p5087c334.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.53 | p5087c335.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.54 | p5087c336.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.55 | p5087c337.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.56 | p5087c338.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.57 | p5087c339.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.58 | p5087c33a.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.59 | p5087c33b.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.60 | p5087c33c.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.61 | p5087c33d.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.62 | p5087c33e.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.63 | p5087c33f.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.64 | p5087c340.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.65 | p5087c341.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.66 | p5087c342.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.67 | p5087c343.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.68 | p5087c344.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.69 | p5087c345.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.70 | p5087c346.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.71 | p5087c347.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.72 | p5087c348.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.73 | p5087c349.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.74 | p5087c34a.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.75 | p5087c34b.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.76 | p5087c34c.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.77 | p5087c34d.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.78 | p5087c34e.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.79 | p5087c34f.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.80 | p5087c350.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.81 | p5087c351.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.82 | p5087c352.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.83 | p5087c353.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.84 | p5087c354.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.85 | p5087c355.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.86 | p5087c356.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.87 | p5087c357.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.88 | p5087c358.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.89 | p5087c359.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.90 | p5087c35a.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.91 | p5087c35b.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.92 | p5087c35c.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.93 | p5087c35d.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.94 | p5087c35e.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.95 | p5087c35f.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.96 | p5087c360.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.97 | p5087c361.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.98 | p5087c362.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.99 | p5087c363.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.100 | p5087c364.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.101 | p5087c365.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.102 | p5087c366.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.103 | p5087c367.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.104 | p5087c368.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.105 | p5087c369.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.106 | p5087c36a.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.107 | p5087c36b.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.108 | p5087c36c.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.109 | p5087c36d.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.110 | p5087c36e.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.111 | p5087c36f.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.112 | p5087c370.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.113 | p5087c371.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.114 | p5087c372.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.115 | p5087c373.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.116 | p5087c374.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.117 | p5087c375.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.118 | p5087c376.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.119 | p5087c377.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.120 | p5087c378.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.121 | p5087c379.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.122 | p5087c37a.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.123 | p5087c37b.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.124 | p5087c37c.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.125 | p5087c37d.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.126 | p5087c37e.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.127 | p5087c37f.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.128 | p5087c380.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.129 | p5087c381.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.130 | p5087c382.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.131 | p5087c383.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.132 | p5087c384.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.133 | p5087c385.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.134 | p5087c386.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.135 | p5087c387.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.136 | p5087c388.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.137 | p5087c389.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.138 | p5087c38a.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.139 | p5087c38b.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.140 | p5087c38c.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.141 | p5087c38d.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.142 | p5087c38e.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.143 | p5087c38f.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.144 | p5087c390.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.145 | p5087c391.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.146 | p5087c392.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.147 | p5087c393.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.148 | p5087c394.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.149 | p5087c395.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.150 | p5087c396.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.151 | p5087c397.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.152 | p5087c398.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.153 | p5087c399.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.154 | p5087c39a.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.155 | p5087c39b.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.156 | p5087c39c.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.157 | p5087c39d.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.158 | p5087c39e.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.159 | p5087c39f.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.160 | p5087c3a0.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.161 | p5087c3a1.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.162 | p5087c3a2.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.163 | p5087c3a3.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.164 | p5087c3a4.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.165 | p5087c3a5.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.166 | p5087c3a6.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.167 | p5087c3a7.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.168 | p5087c3a8.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.169 | p5087c3a9.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.170 | p5087c3aa.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.171 | p5087c3ab.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.172 | p5087c3ac.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.173 | p5087c3ad.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.174 | p5087c3ae.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.175 | p5087c3af.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.176 | p5087c3b0.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.177 | p5087c3b1.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.178 | p5087c3b2.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.179 | p5087c3b3.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.180 | p5087c3b4.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.181 | p5087c3b5.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.182 | p5087c3b6.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.183 | p5087c3b7.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.184 | p5087c3b8.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.185 | p5087c3b9.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.186 | p5087c3ba.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.187 | p5087c3bb.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.188 | p5087c3bc.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.189 | p5087c3bd.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.190 | p5087c3be.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.191 | p5087c3bf.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.192 | p5087c3c0.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.193 | p5087c3c1.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.194 | p5087c3c2.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.195 | p5087c3c3.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.196 | p5087c3c4.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.197 | p5087c3c5.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.198 | p5087c3c6.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.199 | p5087c3c7.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.200 | p5087c3c8.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.201 | p5087c3c9.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.202 | p5087c3ca.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.203 | p5087c3cb.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.204 | p5087c3cc.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.205 | p5087c3cd.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.206 | p5087c3ce.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.207 | p5087c3cf.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.208 | p5087c3d0.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.209 | p5087c3d1.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.210 | p5087c3d2.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.211 | p5087c3d3.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.212 | p5087c3d4.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.213 | p5087c3d5.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.214 | p5087c3d6.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.215 | p5087c3d7.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.216 | p5087c3d8.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.217 | p5087c3d9.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.218 | p5087c3da.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.219 | p5087c3db.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.220 | p5087c3dc.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.221 | p5087c3dd.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.222 | p5087c3de.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.223 | p5087c3df.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.224 | p5087c3e0.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.225 | p5087c3e1.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.226 | p5087c3e2.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.227 | p5087c3e3.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.228 | p5087c3e4.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.229 | p5087c3e5.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.230 | p5087c3e6.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.231 | p5087c3e7.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.232 | p5087c3e8.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.233 | p5087c3e9.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.234 | p5087c3ea.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.235 | p5087c3eb.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.236 | p5087c3ec.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.237 | p5087c3ed.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.238 | p5087c3ee.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.239 | p5087c3ef.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.240 | p5087c3f0.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.241 | p5087c3f1.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.242 | p5087c3f2.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.243 | p5087c3f3.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.244 | p5087c3f4.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.245 | p5087c3f5.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.246 | p5087c3f6.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.247 | p5087c3f7.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.248 | p5087c3f8.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.249 | p5087c3f9.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.250 | p5087c3fa.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.251 | p5087c3fb.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.252 | p5087c3fc.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.253 | p5087c3fd.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.254 | p5087c3fe.dip0.t-ipconnect.de | 0 | | |
| 80.135.195.255 | p5087c3ff.dip0.t-ipconnect.de | 0 | | |
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
$
traceroute -a -n -q1 -f2 80.135.195.231
traceroute to 80.135.195.231 (80.135.195.231): 64 hops max, 52 byte packets
3 *
5 *
Measurement taken from 
IPinfo ProbeNet in Bogota, CO
IPinfo ProbeNet in Bogota, COOn