Summary
| ASN | AS33363 Charter Communications, Inc |
| BGP | 104.137.192.0/19 |
| IPs with RDNS | 256 |
| Hosted Domains | 0 |
| Pingable IPs | 66 |
| Router IPs | 23 |
| 104.137.217.0 | syn-104-137-217-000.biz.spectrum.com | 0 |  | |
| 104.137.217.1 | syn-104-137-217-001.biz.spectrum.com | 0 |  | |
| 104.137.217.2 | syn-104-137-217-002.biz.spectrum.com | 0 | | |
| 104.137.217.3 | syn-104-137-217-003.biz.spectrum.com | 0 | | |
| 104.137.217.4 | syn-104-137-217-004.biz.spectrum.com | 0 | | |
| 104.137.217.5 | syn-104-137-217-005.biz.spectrum.com | 0 | | |
| 104.137.217.6 | syn-104-137-217-006.biz.spectrum.com | 0 | | |
| 104.137.217.7 | syn-104-137-217-007.biz.spectrum.com | 0 | | |
| 104.137.217.8 | syn-104-137-217-008.biz.spectrum.com | 0 | | |
| 104.137.217.9 | syn-104-137-217-009.biz.spectrum.com | 0 | | |
| 104.137.217.10 | syn-104-137-217-010.biz.spectrum.com | 0 | | |
| 104.137.217.11 | syn-104-137-217-011.biz.spectrum.com | 0 | | |
| 104.137.217.12 | syn-104-137-217-012.biz.spectrum.com | 0 | | |
| 104.137.217.13 | syn-104-137-217-013.biz.spectrum.com | 0 | | |
| 104.137.217.14 | syn-104-137-217-014.biz.spectrum.com | 0 | | |
| 104.137.217.15 | syn-104-137-217-015.biz.spectrum.com | 0 | | |
| 104.137.217.16 | syn-104-137-217-016.biz.spectrum.com | 0 | | |
| 104.137.217.17 | syn-104-137-217-017.biz.spectrum.com | 0 | | |
| 104.137.217.18 | syn-104-137-217-018.biz.spectrum.com | 0 | | |
| 104.137.217.19 | syn-104-137-217-019.biz.spectrum.com | 0 | | |
| 104.137.217.20 | syn-104-137-217-020.biz.spectrum.com | 0 | | |
| 104.137.217.21 | syn-104-137-217-021.biz.spectrum.com | 0 | | |
| 104.137.217.22 | syn-104-137-217-022.biz.spectrum.com | 0 | | |
| 104.137.217.23 | syn-104-137-217-023.biz.spectrum.com | 0 | | |
| 104.137.217.24 | syn-104-137-217-024.biz.spectrum.com | 0 | | |
| 104.137.217.25 | syn-104-137-217-025.biz.spectrum.com | 0 | | |
| 104.137.217.26 | syn-104-137-217-026.biz.spectrum.com | 0 | | |
| 104.137.217.27 | syn-104-137-217-027.biz.spectrum.com | 0 | | |
| 104.137.217.28 | syn-104-137-217-028.biz.spectrum.com | 0 | | |
| 104.137.217.29 | syn-104-137-217-029.biz.spectrum.com | 0 | | |
| 104.137.217.30 | syn-104-137-217-030.biz.spectrum.com | 0 | | |
| 104.137.217.31 | syn-104-137-217-031.biz.spectrum.com | 0 | | |
| 104.137.217.32 | syn-104-137-217-032.biz.spectrum.com | 0 | | |
| 104.137.217.33 | syn-104-137-217-033.biz.spectrum.com | 0 | | |
| 104.137.217.34 | syn-104-137-217-034.biz.spectrum.com | 0 | | |
| 104.137.217.35 | syn-104-137-217-035.biz.spectrum.com | 0 | | |
| 104.137.217.36 | syn-104-137-217-036.biz.spectrum.com | 0 | | |
| 104.137.217.37 | syn-104-137-217-037.biz.spectrum.com | 0 | | |
| 104.137.217.38 | syn-104-137-217-038.biz.spectrum.com | 0 | | |
| 104.137.217.39 | syn-104-137-217-039.biz.spectrum.com | 0 | | |
| 104.137.217.40 | syn-104-137-217-040.biz.spectrum.com | 0 | | |
| 104.137.217.41 | syn-104-137-217-041.biz.spectrum.com | 0 | | |
| 104.137.217.42 | syn-104-137-217-042.biz.spectrum.com | 0 | | |
| 104.137.217.43 | syn-104-137-217-043.biz.spectrum.com | 0 | | |
| 104.137.217.44 | syn-104-137-217-044.biz.spectrum.com | 0 | | |
| 104.137.217.45 | syn-104-137-217-045.biz.spectrum.com | 0 | | |
| 104.137.217.46 | syn-104-137-217-046.biz.spectrum.com | 0 | | |
| 104.137.217.47 | syn-104-137-217-047.biz.spectrum.com | 0 | | |
| 104.137.217.48 | syn-104-137-217-048.biz.spectrum.com | 0 | | |
| 104.137.217.49 | syn-104-137-217-049.biz.spectrum.com | 0 | | |
| 104.137.217.50 | syn-104-137-217-050.biz.spectrum.com | 0 | | |
| 104.137.217.51 | syn-104-137-217-051.biz.spectrum.com | 0 | | |
| 104.137.217.52 | syn-104-137-217-052.biz.spectrum.com | 0 | | |
| 104.137.217.53 | syn-104-137-217-053.biz.spectrum.com | 0 | | |
| 104.137.217.54 | syn-104-137-217-054.biz.spectrum.com | 0 | | |
| 104.137.217.55 | syn-104-137-217-055.biz.spectrum.com | 0 | | |
| 104.137.217.56 | syn-104-137-217-056.biz.spectrum.com | 0 | | |
| 104.137.217.57 | syn-104-137-217-057.biz.spectrum.com | 0 | | |
| 104.137.217.58 | syn-104-137-217-058.biz.spectrum.com | 0 | | |
| 104.137.217.59 | syn-104-137-217-059.biz.spectrum.com | 0 | | |
| 104.137.217.60 | syn-104-137-217-060.biz.spectrum.com | 0 | | |
| 104.137.217.61 | syn-104-137-217-061.biz.spectrum.com | 0 | | |
| 104.137.217.62 | syn-104-137-217-062.biz.spectrum.com | 0 | | |
| 104.137.217.63 | syn-104-137-217-063.biz.spectrum.com | 0 | | |
| 104.137.217.64 | syn-104-137-217-064.biz.spectrum.com | 0 | | |
| 104.137.217.65 | syn-104-137-217-065.biz.spectrum.com | 0 | | |
| 104.137.217.66 | syn-104-137-217-066.biz.spectrum.com | 0 | | |
| 104.137.217.67 | syn-104-137-217-067.biz.spectrum.com | 0 | | |
| 104.137.217.68 | syn-104-137-217-068.biz.spectrum.com | 0 | | |
| 104.137.217.69 | syn-104-137-217-069.biz.spectrum.com | 0 | | |
| 104.137.217.70 | syn-104-137-217-070.biz.spectrum.com | 0 | | |
| 104.137.217.71 | syn-104-137-217-071.biz.spectrum.com | 0 | | |
| 104.137.217.72 | syn-104-137-217-072.biz.spectrum.com | 0 | | |
| 104.137.217.73 | syn-104-137-217-073.biz.spectrum.com | 0 | | |
| 104.137.217.74 | syn-104-137-217-074.biz.spectrum.com | 0 | | |
| 104.137.217.75 | syn-104-137-217-075.biz.spectrum.com | 0 | | |
| 104.137.217.76 | syn-104-137-217-076.biz.spectrum.com | 0 | | |
| 104.137.217.77 | syn-104-137-217-077.biz.spectrum.com | 0 | | |
| 104.137.217.78 | syn-104-137-217-078.biz.spectrum.com | 0 | | |
| 104.137.217.79 | syn-104-137-217-079.biz.spectrum.com | 0 | | |
| 104.137.217.80 | syn-104-137-217-080.biz.spectrum.com | 0 | | |
| 104.137.217.81 | syn-104-137-217-081.biz.spectrum.com | 0 | | |
| 104.137.217.82 | syn-104-137-217-082.biz.spectrum.com | 0 | | |
| 104.137.217.83 | syn-104-137-217-083.biz.spectrum.com | 0 | | |
| 104.137.217.84 | syn-104-137-217-084.biz.spectrum.com | 0 | | |
| 104.137.217.85 | syn-104-137-217-085.biz.spectrum.com | 0 | | |
| 104.137.217.86 | syn-104-137-217-086.biz.spectrum.com | 0 | | |
| 104.137.217.87 | syn-104-137-217-087.biz.spectrum.com | 0 | | |
| 104.137.217.88 | syn-104-137-217-088.biz.spectrum.com | 0 | | |
| 104.137.217.89 | syn-104-137-217-089.biz.spectrum.com | 0 | | |
| 104.137.217.90 | syn-104-137-217-090.biz.spectrum.com | 0 | | |
| 104.137.217.91 | syn-104-137-217-091.biz.spectrum.com | 0 | | |
| 104.137.217.92 | syn-104-137-217-092.biz.spectrum.com | 0 | | |
| 104.137.217.93 | syn-104-137-217-093.biz.spectrum.com | 0 | | |
| 104.137.217.94 | syn-104-137-217-094.biz.spectrum.com | 0 | | |
| 104.137.217.95 | syn-104-137-217-095.biz.spectrum.com | 0 | | |
| 104.137.217.96 | syn-104-137-217-096.biz.spectrum.com | 0 | | |
| 104.137.217.97 | syn-104-137-217-097.biz.spectrum.com | 0 | | |
| 104.137.217.98 | syn-104-137-217-098.biz.spectrum.com | 0 | | |
| 104.137.217.99 | syn-104-137-217-099.biz.spectrum.com | 0 | | |
| 104.137.217.100 | syn-104-137-217-100.biz.spectrum.com | 0 | | |
| 104.137.217.101 | syn-104-137-217-101.biz.spectrum.com | 0 | | |
| 104.137.217.102 | syn-104-137-217-102.biz.spectrum.com | 0 | | |
| 104.137.217.103 | syn-104-137-217-103.biz.spectrum.com | 0 | | |
| 104.137.217.104 | syn-104-137-217-104.biz.spectrum.com | 0 | | |
| 104.137.217.105 | syn-104-137-217-105.biz.spectrum.com | 0 | | |
| 104.137.217.106 | syn-104-137-217-106.biz.spectrum.com | 0 | | |
| 104.137.217.107 | syn-104-137-217-107.biz.spectrum.com | 0 | | |
| 104.137.217.108 | syn-104-137-217-108.biz.spectrum.com | 0 | | |
| 104.137.217.109 | syn-104-137-217-109.biz.spectrum.com | 0 | | |
| 104.137.217.110 | syn-104-137-217-110.biz.spectrum.com | 0 | | |
| 104.137.217.111 | syn-104-137-217-111.biz.spectrum.com | 0 | | |
| 104.137.217.112 | syn-104-137-217-112.biz.spectrum.com | 0 | | |
| 104.137.217.113 | syn-104-137-217-113.biz.spectrum.com | 0 | | |
| 104.137.217.114 | syn-104-137-217-114.biz.spectrum.com | 0 | | |
| 104.137.217.115 | syn-104-137-217-115.biz.spectrum.com | 0 | | |
| 104.137.217.116 | syn-104-137-217-116.biz.spectrum.com | 0 | | |
| 104.137.217.117 | syn-104-137-217-117.biz.spectrum.com | 0 | | |
| 104.137.217.118 | syn-104-137-217-118.biz.spectrum.com | 0 | | |
| 104.137.217.119 | syn-104-137-217-119.biz.spectrum.com | 0 | | |
| 104.137.217.120 | syn-104-137-217-120.biz.spectrum.com | 0 | | |
| 104.137.217.121 | syn-104-137-217-121.biz.spectrum.com | 0 | | |
| 104.137.217.122 | syn-104-137-217-122.biz.spectrum.com | 0 | | |
| 104.137.217.123 | syn-104-137-217-123.biz.spectrum.com | 0 | | |
| 104.137.217.124 | syn-104-137-217-124.biz.spectrum.com | 0 | | |
| 104.137.217.125 | syn-104-137-217-125.biz.spectrum.com | 0 | | |
| 104.137.217.126 | syn-104-137-217-126.biz.spectrum.com | 0 | | |
| 104.137.217.127 | syn-104-137-217-127.biz.spectrum.com | 0 | | |
| 104.137.217.128 | syn-104-137-217-128.biz.spectrum.com | 0 | | |
| 104.137.217.129 | syn-104-137-217-129.biz.spectrum.com | 0 | | |
| 104.137.217.130 | syn-104-137-217-130.biz.spectrum.com | 0 | | |
| 104.137.217.131 | syn-104-137-217-131.biz.spectrum.com | 0 | | |
| 104.137.217.132 | syn-104-137-217-132.biz.spectrum.com | 0 | | |
| 104.137.217.133 | syn-104-137-217-133.biz.spectrum.com | 0 | | |
| 104.137.217.134 | syn-104-137-217-134.biz.spectrum.com | 0 | | |
| 104.137.217.135 | syn-104-137-217-135.biz.spectrum.com | 0 | | |
| 104.137.217.136 | syn-104-137-217-136.biz.spectrum.com | 0 | | |
| 104.137.217.137 | syn-104-137-217-137.biz.spectrum.com | 0 | | |
| 104.137.217.138 | syn-104-137-217-138.biz.spectrum.com | 0 | | |
| 104.137.217.139 | syn-104-137-217-139.biz.spectrum.com | 0 | | |
| 104.137.217.140 | syn-104-137-217-140.biz.spectrum.com | 0 | | |
| 104.137.217.141 | syn-104-137-217-141.biz.spectrum.com | 0 | | |
| 104.137.217.142 | syn-104-137-217-142.biz.spectrum.com | 0 | | |
| 104.137.217.143 | syn-104-137-217-143.biz.spectrum.com | 0 | | |
| 104.137.217.144 | syn-104-137-217-144.biz.spectrum.com | 0 | | |
| 104.137.217.145 | syn-104-137-217-145.biz.spectrum.com | 0 | | |
| 104.137.217.146 | syn-104-137-217-146.biz.spectrum.com | 0 | | |
| 104.137.217.147 | syn-104-137-217-147.biz.spectrum.com | 0 | | |
| 104.137.217.148 | syn-104-137-217-148.biz.spectrum.com | 0 | | |
| 104.137.217.149 | syn-104-137-217-149.biz.spectrum.com | 0 | | |
| 104.137.217.150 | syn-104-137-217-150.biz.spectrum.com | 0 | | |
| 104.137.217.151 | syn-104-137-217-151.biz.spectrum.com | 0 | | |
| 104.137.217.152 | syn-104-137-217-152.biz.spectrum.com | 0 | | |
| 104.137.217.153 | syn-104-137-217-153.biz.spectrum.com | 0 | | |
| 104.137.217.154 | syn-104-137-217-154.biz.spectrum.com | 0 | | |
| 104.137.217.155 | syn-104-137-217-155.biz.spectrum.com | 0 | | |
| 104.137.217.156 | syn-104-137-217-156.biz.spectrum.com | 0 | | |
| 104.137.217.157 | syn-104-137-217-157.biz.spectrum.com | 0 | | |
| 104.137.217.158 | syn-104-137-217-158.biz.spectrum.com | 0 | | |
| 104.137.217.159 | syn-104-137-217-159.biz.spectrum.com | 0 | | |
| 104.137.217.160 | syn-104-137-217-160.biz.spectrum.com | 0 | | |
| 104.137.217.161 | syn-104-137-217-161.biz.spectrum.com | 0 | | |
| 104.137.217.162 | syn-104-137-217-162.biz.spectrum.com | 0 | | |
| 104.137.217.163 | syn-104-137-217-163.biz.spectrum.com | 0 | | |
| 104.137.217.164 | syn-104-137-217-164.biz.spectrum.com | 0 | | |
| 104.137.217.165 | syn-104-137-217-165.biz.spectrum.com | 0 | | |
| 104.137.217.166 | syn-104-137-217-166.biz.spectrum.com | 0 | | |
| 104.137.217.167 | syn-104-137-217-167.biz.spectrum.com | 0 | | |
| 104.137.217.168 | syn-104-137-217-168.biz.spectrum.com | 0 | | |
| 104.137.217.169 | syn-104-137-217-169.biz.spectrum.com | 0 | | |
| 104.137.217.170 | syn-104-137-217-170.biz.spectrum.com | 0 | | |
| 104.137.217.171 | syn-104-137-217-171.biz.spectrum.com | 0 | | |
| 104.137.217.172 | syn-104-137-217-172.biz.spectrum.com | 0 | | |
| 104.137.217.173 | syn-104-137-217-173.biz.spectrum.com | 0 | | |
| 104.137.217.174 | syn-104-137-217-174.biz.spectrum.com | 0 | | |
| 104.137.217.175 | syn-104-137-217-175.biz.spectrum.com | 0 | | |
| 104.137.217.176 | syn-104-137-217-176.biz.spectrum.com | 0 | | |
| 104.137.217.177 | syn-104-137-217-177.biz.spectrum.com | 0 | | |
| 104.137.217.178 | syn-104-137-217-178.biz.spectrum.com | 0 | | |
| 104.137.217.179 | syn-104-137-217-179.biz.spectrum.com | 0 | | |
| 104.137.217.180 | syn-104-137-217-180.biz.spectrum.com | 0 | | |
| 104.137.217.181 | syn-104-137-217-181.biz.spectrum.com | 0 | | |
| 104.137.217.182 | syn-104-137-217-182.biz.spectrum.com | 0 | | |
| 104.137.217.183 | syn-104-137-217-183.biz.spectrum.com | 0 | | |
| 104.137.217.184 | syn-104-137-217-184.biz.spectrum.com | 0 | | |
| 104.137.217.185 | syn-104-137-217-185.biz.spectrum.com | 0 | | |
| 104.137.217.186 | syn-104-137-217-186.biz.spectrum.com | 0 | | |
| 104.137.217.187 | syn-104-137-217-187.biz.spectrum.com | 0 | | |
| 104.137.217.188 | syn-104-137-217-188.biz.spectrum.com | 0 | | |
| 104.137.217.189 | syn-104-137-217-189.biz.spectrum.com | 0 | | |
| 104.137.217.190 | syn-104-137-217-190.biz.spectrum.com | 0 | | |
| 104.137.217.191 | syn-104-137-217-191.biz.spectrum.com | 0 | | |
| 104.137.217.192 | syn-104-137-217-192.biz.spectrum.com | 0 | | |
| 104.137.217.193 | syn-104-137-217-193.biz.spectrum.com | 0 | | |
| 104.137.217.194 | syn-104-137-217-194.biz.spectrum.com | 0 | | |
| 104.137.217.195 | syn-104-137-217-195.biz.spectrum.com | 0 | | |
| 104.137.217.196 | syn-104-137-217-196.biz.spectrum.com | 0 | | |
| 104.137.217.197 | syn-104-137-217-197.biz.spectrum.com | 0 | | |
| 104.137.217.198 | syn-104-137-217-198.biz.spectrum.com | 0 | | |
| 104.137.217.199 | syn-104-137-217-199.biz.spectrum.com | 0 | | |
| 104.137.217.200 | syn-104-137-217-200.biz.spectrum.com | 0 | | |
| 104.137.217.201 | syn-104-137-217-201.biz.spectrum.com | 0 | | |
| 104.137.217.202 | syn-104-137-217-202.biz.spectrum.com | 0 | | |
| 104.137.217.203 | syn-104-137-217-203.biz.spectrum.com | 0 | | |
| 104.137.217.204 | syn-104-137-217-204.biz.spectrum.com | 0 | | |
| 104.137.217.205 | syn-104-137-217-205.biz.spectrum.com | 0 | | |
| 104.137.217.206 | syn-104-137-217-206.biz.spectrum.com | 0 | | |
| 104.137.217.207 | syn-104-137-217-207.biz.spectrum.com | 0 | | |
| 104.137.217.208 | syn-104-137-217-208.biz.spectrum.com | 0 | | |
| 104.137.217.209 | syn-104-137-217-209.biz.spectrum.com | 0 | | |
| 104.137.217.210 | syn-104-137-217-210.biz.spectrum.com | 0 | | |
| 104.137.217.211 | syn-104-137-217-211.biz.spectrum.com | 0 | | |
| 104.137.217.212 | syn-104-137-217-212.biz.spectrum.com | 0 | | |
| 104.137.217.213 | syn-104-137-217-213.biz.spectrum.com | 0 | | |
| 104.137.217.214 | syn-104-137-217-214.biz.spectrum.com | 0 | | |
| 104.137.217.215 | syn-104-137-217-215.biz.spectrum.com | 0 | | |
| 104.137.217.216 | syn-104-137-217-216.biz.spectrum.com | 0 | | |
| 104.137.217.217 | syn-104-137-217-217.biz.spectrum.com | 0 | | |
| 104.137.217.218 | syn-104-137-217-218.biz.spectrum.com | 0 | | |
| 104.137.217.219 | syn-104-137-217-219.biz.spectrum.com | 0 | | |
| 104.137.217.220 | syn-104-137-217-220.biz.spectrum.com | 0 | | |
| 104.137.217.221 | syn-104-137-217-221.biz.spectrum.com | 0 | | |
| 104.137.217.222 | syn-104-137-217-222.biz.spectrum.com | 0 | | |
| 104.137.217.223 | syn-104-137-217-223.biz.spectrum.com | 0 | | |
| 104.137.217.224 | syn-104-137-217-224.biz.spectrum.com | 0 | | |
| 104.137.217.225 | syn-104-137-217-225.biz.spectrum.com | 0 | | |
| 104.137.217.226 | syn-104-137-217-226.biz.spectrum.com | 0 | | |
| 104.137.217.227 | syn-104-137-217-227.biz.spectrum.com | 0 | | |
| 104.137.217.228 | syn-104-137-217-228.biz.spectrum.com | 0 | | |
| 104.137.217.229 | syn-104-137-217-229.biz.spectrum.com | 0 | | |
| 104.137.217.230 | syn-104-137-217-230.biz.spectrum.com | 0 | | |
| 104.137.217.231 | syn-104-137-217-231.biz.spectrum.com | 0 | | |
| 104.137.217.232 | syn-104-137-217-232.biz.spectrum.com | 0 | | |
| 104.137.217.233 | syn-104-137-217-233.biz.spectrum.com | 0 | | |
| 104.137.217.234 | syn-104-137-217-234.biz.spectrum.com | 0 | | |
| 104.137.217.235 | syn-104-137-217-235.biz.spectrum.com | 0 | | |
| 104.137.217.236 | syn-104-137-217-236.biz.spectrum.com | 0 | | |
| 104.137.217.237 | syn-104-137-217-237.biz.spectrum.com | 0 | | |
| 104.137.217.238 | syn-104-137-217-238.biz.spectrum.com | 0 | | |
| 104.137.217.239 | syn-104-137-217-239.biz.spectrum.com | 0 | | |
| 104.137.217.240 | syn-104-137-217-240.biz.spectrum.com | 0 | | |
| 104.137.217.241 | syn-104-137-217-241.biz.spectrum.com | 0 | | |
| 104.137.217.242 | syn-104-137-217-242.biz.spectrum.com | 0 | | |
| 104.137.217.243 | syn-104-137-217-243.biz.spectrum.com | 0 | | |
| 104.137.217.244 | syn-104-137-217-244.biz.spectrum.com | 0 | | |
| 104.137.217.245 | syn-104-137-217-245.biz.spectrum.com | 0 | | |
| 104.137.217.246 | syn-104-137-217-246.biz.spectrum.com | 0 | | |
| 104.137.217.247 | syn-104-137-217-247.biz.spectrum.com | 0 | | |
| 104.137.217.248 | syn-104-137-217-248.biz.spectrum.com | 0 | | |
| 104.137.217.249 | syn-104-137-217-249.biz.spectrum.com | 0 | | |
| 104.137.217.250 | syn-104-137-217-250.biz.spectrum.com | 0 | | |
| 104.137.217.251 | syn-104-137-217-251.biz.spectrum.com | 0 | | |
| 104.137.217.252 | syn-104-137-217-252.biz.spectrum.com | 0 | | |
| 104.137.217.253 | syn-104-137-217-253.biz.spectrum.com | 0 | | |
| 104.137.217.254 | syn-104-137-217-254.biz.spectrum.com | 0 | | |
| 104.137.217.255 | syn-104-137-217-255.biz.spectrum.com | 0 | | |
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
$
traceroute -a -n -q1 -f5 104.137.217.150
traceroute to 104.137.217.150 (104.137.217.150): 64 hops max, 52 byte packets
Measurement taken from 
IPinfo ProbeNet in Chicago, US
IPinfo ProbeNet in Chicago, USOn