Summary
| ASN | AS41230 ASK4 Limited |
| BGP | 81.23.48.0/20 |
| IPs with RDNS | 250 |
| Hosted Domains | 0 |
| Pingable IPs | 104 |
| Router IPs | 8 |
| 81.23.55.0 | subnet-55-0.ask4internet.com | 0 |  | |
| 81.23.55.1 | gw-vlan1894.edge1.thn.ask4.net | 0 |  | |
| 81.23.55.2 | gw.lansdowne.kaplan.ask4.co.uk | 0 | | |
| 81.23.55.3 | ip-81-23-55-3.ask4internet.com | 0 | | |
| 81.23.55.4 | customers.lansdowne.kaplan.ask4.co.uk | 0 | | |
| 81.23.55.5 | ip-81-23-55-5.ask4internet.com | 0 | | |
| 81.23.55.6 | ip-81-23-55-6.ask4internet.com | 0 | | |
| 81.23.55.7 | bcast-55-0.ask4internet.com | 0 | | |
| 81.23.55.8 | subnet-55-8.ask4internet.com | 0 | | |
| 81.23.55.9 | gw-vlan45.e2.thn.ask4.net | 0 | | |
| 81.23.55.10 | gw.stewart.capitol.ask4.co.uk | 0 | | |
| 81.23.55.11 | r1.stewart.capitol.ask4.co.uk | 0 | | |
| 81.23.55.12 | customers.stewart.capitol.ask4.co.uk | 0 | | |
| 81.23.55.13 | staff-data.stewart.capitol.ask4.co.uk | 0 | | |
| 81.23.55.14 | ip-81-23-55-14.ask4internet.com | 0 | | |
| 81.23.55.15 | bcast-55-8.ask4internet.com | 0 | | |
| 81.23.55.16 | subnet-55-16.ask4internet.com | 0 | | |
| 81.23.55.17 | gw-vlan1892.edge1.thn.ask4.net | 0 | | |
| 81.23.55.18 | gw.twerton.crm.ask4.co.uk | 0 | | |
| 81.23.55.19 | ip-81-23-55-19.ask4internet.com | 0 | | |
| 81.23.55.20 | customers.twerton.crm.ask4.co.uk | 0 | | |
| 81.23.55.21 | ip-81-23-55-21.ask4internet.com | 0 | | |
| 81.23.55.22 | ip-81-23-55-22.ask4internet.com | 0 | | |
| 81.23.55.23 | bcast-55-16.ask4internet.com | 0 | | |
| 81.23.55.24 | subnet-55-24.ask4internet.com | 0 | | |
| 81.23.55.25 | gw-vlan1921.e1.thn.ask4.net | 0 | | |
| 81.23.55.26 | gw.chronicle.fortis.ask4.co.uk | 0 | | |
| 81.23.55.27 | ip-81-23-55-27.ask4internet.com | 0 | | |
| 81.23.55.28 | customers.chronicle.fortis.ask4.co.uk | 0 | | |
| 81.23.55.29 | ip-81-23-55-29.ask4internet.com | 0 | | |
| 81.23.55.30 | ip-81-23-55-30.ask4internet.com | 0 | | |
| 81.23.55.31 | bcast-55-24.ask4internet.com | 0 | | |
| 81.23.55.32 | subnet-55-32.ask4internet.com | 0 | | |
| 81.23.55.33 | gw-vlan1885.edge1.thn.ask4.net | 0 | | |
| 81.23.55.34 | gw.lawrence.prime.ask4.co.uk | 0 | | |
| 81.23.55.35 | ip-81-23-55-35.ask4internet.com | 0 | | |
| 81.23.55.36 | customers.lawrence.prime.ask4.co.uk | 0 | | |
| 81.23.55.37 | ip-81-23-55-37.ask4internet.com | 0 | | |
| 81.23.55.38 | ip-81-23-55-38.ask4internet.com | 0 | | |
| 81.23.55.39 | bcast-55-32.ask4internet.com | 0 | | |
| 81.23.55.40 | subnet-55-40.ask4internet.com | 0 | | |
| 81.23.55.41 | gw-vlan1881.edge1.thn.ask4.net | 0 | | |
| 81.23.55.42 | gw.canterburycourt.cribs.ask4.co.uk | 0 | | |
| 81.23.55.43 | ip-81-23-55-43.ask4internet.com | 0 | | |
| 81.23.55.44 | customers.canterburycourt.cribs.ask4.co.uk | 0 | | |
| 81.23.55.45 | ip-81-23-55-45.ask4internet.com | 0 | | |
| 81.23.55.46 | ip-81-23-55-46.ask4internet.com | 0 | | |
| 81.23.55.47 | bcast-55-40.ask4internet.com | 0 | | |
| 81.23.55.48 | subnet-55-48.ask4internet.com | 0 | | |
| 81.23.55.49 | gw-vlan1893.e1.thn.ask4.net | 0 | | |
| 81.23.55.50 | gw.mercury.fresh.ask4.co.uk | 0 | | |
| 81.23.55.51 | ip-81-23-55-51.ask4internet.com | 0 | | |
| 81.23.55.52 | customers.mercury.fresh.ask4.co.uk | 0 | | |
| 81.23.55.53 | ip-81-23-55-53.ask4internet.com | 0 | | |
| 81.23.55.54 | ip-81-23-55-54.ask4internet.com | 0 | | |
| 81.23.55.55 | bcast-55-48.ask4internet.com | 0 | | |
| 81.23.55.56 | subnet-55-56.ask4internet.com | 0 | | |
| 81.23.55.57 | gw-vlan2951.edge2.tcw-r1.ask4.net | 0 | | |
| 81.23.55.58 | gw.burgess.fortis.ask4.co.uk | 0 | | |
| 81.23.55.59 | ip-81-23-55-59.ask4internet.com | 0 | | |
| 81.23.55.60 | customers.burgess.fortis.ask4.co.uk | 0 | | |
| 81.23.55.61 | ip-81-23-55-61.ask4internet.com | 0 | | |
| 81.23.55.62 | ip-81-23-55-62.ask4internet.com | 0 | | |
| 81.23.55.63 | bcast-55-56.ask4internet.com | 0 | | |
| 81.23.55.64 | subnet-55-64.ask4internet.com | 0 | | |
| 81.23.55.65 | gw-vlan1925.e3.thn.ask4.net | 0 | | |
| 81.23.55.66 | gw.york.castle.ask4.co.uk | 0 | | |
| 81.23.55.67 | ip-81-23-55-67.ask4internet.com | 0 | | |
| 81.23.55.68 | customers.york.castle.ask4.co.uk | 0 | | |
| 81.23.55.69 | ip-81-23-55-69.ask4internet.com | 0 | | |
| 81.23.55.70 | ip-81-23-55-70.ask4internet.com | 0 | | |
| 81.23.55.71 | bcast-55-64.ask4internet.com | 0 | | |
| 81.23.55.72 | subnet-55-72.ask4internet.com | 0 | | |
| 81.23.55.73 | gw-vlan487.e1.thn.ask4.net | 0 | | |
| 81.23.55.74 | gw.thehubleicester.crm.ask4.co.uk | 0 | | |
| 81.23.55.75 | ip-81-23-55-75.ask4internet.com | 0 | | |
| 81.23.55.76 | customers.thehubleicester.crm.ask4.co.uk | 0 | | |
| 81.23.55.77 | ip-81-23-55-77.ask4internet.com | 0 | | |
| 81.23.55.78 | ip-81-23-55-78.ask4internet.com | 0 | | |
| 81.23.55.79 | bcast-55-72.ask4internet.com | 0 | | |
| 81.23.55.80 | subnet-55-80.ask4internet.com | 0 | | |
| 81.23.55.81 | gw-vlan1907.edge1.thn.ask4.net | 0 | | |
| 81.23.55.82 | gw.dairy.vic.ask4.co.uk | 0 | | |
| 81.23.55.83 | ip-81-23-55-83.ask4internet.com | 0 | | |
| 81.23.55.84 | customers.dairy.vic.ask4.co.uk | 0 | | |
| 81.23.55.85 | ip-81-23-55-85.ask4internet.com | 0 | | |
| 81.23.55.86 | ip-81-23-55-86.ask4internet.com | 0 | | |
| 81.23.55.87 | bcast-55-80.ask4internet.com | 0 | | |
| 81.23.55.88 | subnet-55-88.ask4internet.com | 0 | | |
| 81.23.55.89 | e2.thn.ask4.net | 0 | | |
| 81.23.55.90 | ip-81-23-55-90.ask4internet.com | 0 | | |
| 81.23.55.91 | bcast-55-88.ask4internet.com | 0 | | |
| 81.23.55.92 | subnet-55-92.ask4internet.com | 0 | | |
| 81.23.55.93 | r1.sharman.capitol.ask4.co.uk | 0 | | |
| 81.23.55.94 | ip-81-23-55-94.ask4internet.com | 0 | | |
| 81.23.55.95 | bcast-55-92.ask4internet.com | 0 | | |
| 81.23.55.96 | subnet-55-96.ask4internet.com | 0 | | |
| 81.23.55.97 | ip-81-23-55-97.ask4internet.com | 0 | | |
| 81.23.55.98 | ip-81-23-55-98.ask4internet.com | 0 | | |
| 81.23.55.99 | bcast-55-96.ask4internet.com | 0 | | |
| 81.23.55.100 | subnet-55-100.ask4internet.com | 0 | | |
| 81.23.55.101 | ip-81-23-55-101.ask4internet.com | 0 | | |
| 81.23.55.102 | ip-81-23-55-102.ask4internet.com | 0 | | |
| 81.23.55.103 | bcast-55-100.ask4internet.com | 0 | | |
| 81.23.55.104 | e2.tcw-r1-core1.gm.uol.ask4.net | 0 | | |
| 81.23.55.105 | core1.gm.uol.ask4.net-core1.thn.ask4.net | 0 | | |
| 81.23.55.106 | core1-tor4.pod1.dc1.ask4.net | 0 | | |
| 81.23.55.107 | tor4-core1.dc1.ask4.net | 0 | | |
| 81.23.55.108 | subnet-55-108.ask4internet.com | 0 | | |
| 81.23.55.109 | core1-thn-core2-thn.thn.ask4.net | 0 | | |
| 81.23.55.110 | core2-thn-core1-thn.thn.ask4.net | 0 | | |
| 81.23.55.111 | bcast-55-108.ask4internet.com | 0 | | |
| 81.23.55.112 | subnet-55-112.ask4internet.com | 0 | | |
| 81.23.55.113 | xe17.ragg2.nott1.uk.int.ask4.net | 0 | | |
| 81.23.55.114 | gw.hydrogen.studentroost.ask4.co.uk | 0 | | |
| 81.23.55.115 | ip-81-23-55-115.ask4internet.com | 0 | | |
| 81.23.55.116 | customers.hydrogen.studentroost.ask4.co.uk | 0 | | |
| 81.23.55.117 | ip-81-23-55-117.ask4internet.com | 0 | | |
| 81.23.55.118 | ip-81-23-55-118.ask4internet.com | 0 | | |
| 81.23.55.119 | bcast-55-112.ask4internet.com | 0 | | |
| 81.23.55.120 | subnet-55-120.ask4internet.com | 0 | | |
| 81.23.55.121 | gw.vlan2.wickpark.novel.ask4.co.uk | 0 | | |
| 81.23.55.122 | ip-81-23-55-122.ask4internet.com | 0 | | |
| 81.23.55.123 | bcast-55-120.ask4internet.com | 0 | | |
| 81.23.55.124 | subnet-55-124.ask4internet.com | 0 | | |
| 81.23.55.125 | br2.akamai-1.thn.ask4.net | 0 | | |
| 81.23.55.126 | akamai.akamai-1.thn.ask4.net | 0 | | |
| 81.23.55.127 | bcast-55-124.ask4internet.com | 0 | | |
| 81.23.55.128 | subnet-55-128.ask4internet.com | 0 | | |
| 81.23.55.129 | gw-vlan1916.edge1.tcw-r2.ask4.net | 0 | | |
| 81.23.55.130 | gw.asquith.pinnacle.ask4.co.uk | 0 | | |
| 81.23.55.131 | ip-81-23-55-131.ask4internet.com | 0 | | |
| 81.23.55.132 | customers.asquith.pinnacle.ask4.co.uk | 0 | | |
| 81.23.55.133 | ip-81-23-55-133.ask4internet.com | 0 | | |
| 81.23.55.134 | ip-81-23-55-134.ask4internet.com | 0 | | |
| 81.23.55.135 | bcast-55-128.ask4internet.com | 0 | | |
| 81.23.55.136 | fastly.br2.thn.ask4.net | 0 | | |
| 81.23.55.137 | ip-81-23-55-137.ask4internet.com | 0 | | |
| 81.23.55.138 | fastly.br2.tcw.ask4.net | 0 | | |
| 81.23.55.139 | fastly.br2.tcw.ask4.net | 0 | | |
| 81.23.55.140 | br2.akamai-2.ma1.ask4.net | 0 | | |
| 81.23.55.141 | akamai.akamai-1.ma1.ask4.net | 0 | | |
| 81.23.55.142 | — | 0 | | |
| 81.23.55.143 | — | 0 | | |
| 81.23.55.144 | e2.hex.ask4.net | 0 | | |
| 81.23.55.145 | edge1.freemens.engie.ask4.net | 0 | | |
| 81.23.55.146 | e1.hex.ask4.net | 0 | | |
| 81.23.55.147 | edge1.freemens.engie.ask4.net | 0 | | |
| 81.23.55.148 | — | 0 | | |
| 81.23.55.149 | — | 0 | | |
| 81.23.55.150 | — | 0 | | |
| 81.23.55.151 | — | 0 | | |
| 81.23.55.152 | subnet-55-152.ask4internet.com | 0 | | |
| 81.23.55.153 | gw-vlan3851.e1.hex.ask4.net | 0 | | |
| 81.23.55.154 | gw.colindale.stayclub.ask4.co.uk | 0 | | |
| 81.23.55.155 | ip-81-23-55-155.ask4internet.com | 0 | | |
| 81.23.55.156 | customers.colindale.stayclub.ask4.co.uk | 0 | | |
| 81.23.55.157 | ip-81-23-55-157.ask4internet.com | 0 | | |
| 81.23.55.158 | ip-81-23-55-158.ask4internet.com | 0 | | |
| 81.23.55.159 | bcast-55-152.ask4internet.com | 0 | | |
| 81.23.55.160 | subnet-55-160.ask4internet.com | 0 | | |
| 81.23.55.161 | gw-vlan243.central-staff.ask4.co.uk | 0 | | |
| 81.23.55.162 | ip-81-23-55-162.ask4internet.com | 0 | | |
| 81.23.55.163 | bcast-55-160.ask4internet.com | 0 | | |
| 81.23.55.164 | subnet-55-164.ask4internet.com | 0 | | |
| 81.23.55.165 | gw.thorncliffe.ask4.co.uk | 0 | | |
| 81.23.55.166 | ip-81-23-55-166.ask4internet.com | 0 | | |
| 81.23.55.167 | bcast-55-164.ask4internet.com | 0 | | |
| 81.23.55.168 | subnet-55-168.ask4internet.com | 0 | | |
| 81.23.55.169 | gw-vlan1903.edge1.tcw-r2.ask4.net | 0 | | |
| 81.23.55.170 | gw.stmarys.mascot.ask4.co.uk | 0 | | |
| 81.23.55.171 | ip-81-23-55-171.ask4internet.com | 0 | | |
| 81.23.55.172 | customers.stmarys.mascot.ask4.co.uk | 0 | | |
| 81.23.55.173 | ip-81-23-55-173.ask4internet.com | 0 | | |
| 81.23.55.174 | ip-81-23-55-174.ask4internet.com | 0 | | |
| 81.23.55.175 | bcast-55-168.ask4internet.com | 0 | | |
| 81.23.55.176 | subnet-55-176.ask4internet.com | 0 | | |
| 81.23.55.177 | gw-vlan45.e1.tcw-r1.ask4.net | 0 | | |
| 81.23.55.178 | gw.elliott.crm.ask4.co.uk | 0 | | |
| 81.23.55.179 | ip-81-23-55-179.ask4internet.com | 0 | | |
| 81.23.55.180 | customers.elliott.crm.ask4.co.uk | 0 | | |
| 81.23.55.181 | ip-81-23-55-181.ask4internet.com | 0 | | |
| 81.23.55.182 | ip-81-23-55-182.ask4internet.com | 0 | | |
| 81.23.55.183 | bcast-55-176.ask4internet.com | 0 | | |
| 81.23.55.184 | subnet-55-184.ask4internet.com | 0 | | |
| 81.23.55.185 | gw-vlan1913.edge1.peel.clv.ask4.net | 0 | | |
| 81.23.55.186 | gw.peel.clv.ask4.co.uk | 0 | | |
| 81.23.55.187 | ip-81-23-55-187.ask4internet.com | 0 | | |
| 81.23.55.188 | customers.peel.clv.ask4.co.uk | 0 | | |
| 81.23.55.189 | ip-81-23-55-189.ask4internet.com | 0 | | |
| 81.23.55.190 | temp-gw.peel.clv.ask4.co.uk | 0 | | |
| 81.23.55.191 | bcast-55-184.ask4internet.com | 0 | | |
| 81.23.55.192 | subnet-55-192.ask4internet.com | 0 | | |
| 81.23.55.193 | gw-vlan1913.e2.hex.ask4.net | 0 | | |
| 81.23.55.194 | gw.blandford.derwent.ask4.co.uk | 0 | | |
| 81.23.55.195 | ip-81-23-55-195.ask4internet.com | 0 | | |
| 81.23.55.196 | customers.blandford.derwent.ask4.co.uk | 0 | | |
| 81.23.55.197 | ip-81-23-55-197.ask4internet.com | 0 | | |
| 81.23.55.198 | ip-81-23-55-198.ask4internet.com | 0 | | |
| 81.23.55.199 | bcast-55-192.ask4internet.com | 0 | | |
| 81.23.55.200 | subnet-55-200.ask4internet.com | 0 | | |
| 81.23.55.201 | vlan516.edge1.tcw-r2.ask4.wan | 0 | | |
| 81.23.55.202 | man-hv1.ask4internet.com | 0 | | |
| 81.23.55.203 | bcast-55-200.ask4internet.com | 0 | | |
| 81.23.55.204 | subnet-55-204.ask4internet.com | 0 | | |
| 81.23.55.205 | rcn-vlan544.hythe.future.ask4.co.uk | 0 | | |
| 81.23.55.206 | ip-81-23-55-206.ask4internet.com | 0 | | |
| 81.23.55.207 | bcast-55-204.ask4internet.com | 0 | | |
| 81.23.55.208 | subnet-55-208.ask4internet.com | 0 | | |
| 81.23.55.209 | r1.stewart.capitol.ask4.co.uk | 0 | | |
| 81.23.55.210 | ip-81-23-55-210.ask4internet.com | 0 | | |
| 81.23.55.211 | bcast-55-208.ask4internet.com | 0 | | |
| 81.23.55.212 | subnet-55-212.ask4internet.com | 0 | | |
| 81.23.55.213 | r1.cliftonhouse.capitol.ask4.co.uk | 0 | | |
| 81.23.55.214 | ip-81-23-55-214.ask4internet.com | 0 | | |
| 81.23.55.215 | bcast-55-212.ask4internet.com | 0 | | |
| 81.23.55.216 | ip-81-23-55-216.ask4internet.com | 0 | | |
| 81.23.55.217 | ip-81-23-55-217.ask4internet.com | 0 | | |
| 81.23.55.218 | ip-81-23-55-218.ask4internet.com | 0 | | |
| 81.23.55.219 | ip-81-23-55-219.ask4internet.com | 0 | | |
| 81.23.55.220 | subnet-55-220.ask4internet.com | 0 | | |
| 81.23.55.221 | lon-xmr.valve-1.thn.ask4.net | 0 | | |
| 81.23.55.222 | valve.valve-1.thw.ask4.net | 0 | | |
| 81.23.55.223 | bcast-55-220.ask4internet.com | 0 | | |
| 81.23.55.224 | subnet-55-224.ask4internet.com | 0 | | |
| 81.23.55.225 | edge3.westone.ask4.net | 0 | | |
| 81.23.55.226 | noc-hv1.networks.ask4.net | 0 | | |
| 81.23.55.227 | airconsole | 0 | | |
| 81.23.55.228 | netauto-lab-srv01.ask4.net | 0 | | |
| 81.23.55.229 | icinga.networks.ask4.net | 0 | | |
| 81.23.55.230 | debian-1 | 0 | | |
| 81.23.55.231 | petes-g-box | 0 | | |
| 81.23.55.232 | debian-12 | 0 | | |
| 81.23.55.233 | netbox-rocky9.3 | 0 | | |
| 81.23.55.234 | debian-2 | 0 | | |
| 81.23.55.235 | other-vms | 0 | | |
| 81.23.55.236 | infrahub-r9 | 0 | | |
| 81.23.55.237 | bird2-debian | 0 | | |
| 81.23.55.238 | vpls-db-poc.networks.ask4.net | 0 | | |
| 81.23.55.239 | bcast-55-224.ask4internet.com | 0 | | |
| 81.23.55.240 | subnet-55-240.ask4internet.com | 0 | | |
| 81.23.55.241 | edge3-dc1.dev-hv.dc1.ask4.net | 0 | | |
| 81.23.55.242 | grafana-devel.ask4internet.com | 0 | | |
| 81.23.55.243 | graphite-01-devel.ask4internet.com | 0 | | |
| 81.23.55.244 | prometheus.dev.ask4.net | 0 | | |
| 81.23.55.245 | splunk-dev-idx-1.ask4.net | 0 | | |
| 81.23.55.246 | signup-01.dev.ask4.net | 0 | | |
| 81.23.55.247 | ip-81-23-55-247.ask4internet.com | 0 | | |
| 81.23.55.248 | ip-81-23-55-248.ask4internet.com | 0 | | |
| 81.23.55.249 | ip-81-23-55-249.ask4internet.com | 0 | | |
| 81.23.55.250 | ip-81-23-55-250.ask4internet.com | 0 | | |
| 81.23.55.251 | ip-81-23-55-251.ask4internet.com | 0 | | |
| 81.23.55.252 | ip-81-23-55-252.ask4internet.com | 0 | | |
| 81.23.55.253 | ip-81-23-55-253.ask4internet.com | 0 | | |
| 81.23.55.254 | ip-81-23-55-254.ask4internet.com | 0 | | |
| 81.23.55.255 | bcast-55-240.ask4internet.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 -f3 81.23.55.1
traceroute to 81.23.55.1 (81.23.55.1): 64 hops max, 52 byte packets
Measurement taken from 
IPinfo ProbeNet in London, GB
IPinfo ProbeNet in London, GBOn