IPinfo - Comprehensive IP address data, IP geolocation API and database
  1. All IP Ranges
  2. 81.0.0.0/8
  3. 81.23.0.0/16
  4. 81.23.51.0/24

81.23.51.0/24 IP Range

Summary

ASNAS41230 ASK4 Limited
BGP81.23.48.0/20
IPs with RDNS240
Hosted Domains0
Pingable IPs49
Router IPs11
81.23.51.0—0
81.23.51.1—0
81.23.51.2—0
81.23.51.3—0
81.23.51.4—0
81.23.51.5—0
81.23.51.6—0
81.23.51.7—0
81.23.51.8subnet-51-8.ask4internet.com0
81.23.51.9gw-vlan1644.edge1-westone.westone.ask4.net0
81.23.51.10gw.westone.resi.ask4.co.uk0
81.23.51.11staff.westone.resi.ask4.co.uk0
81.23.51.12customers.westone.resi.ask4.co.uk0
81.23.51.13gw-staff.westone.resi.ask4.co.uk0
81.23.51.14ip-81-23-51-14.ask4internet.com0
81.23.51.15bcast-51-8.ask4internet.com0
81.23.51.16subnet-51-16.ask4internet.com0
81.23.51.17a4s-gw-1.bus.dc1.ask4.net0
81.23.51.18a4s1.bus.dc1.ask4.net0
81.23.51.19bcast-51-16.ask4internet.com0
81.23.51.20core2.manc1-vlan1099.ask4.net0
81.23.51.21core1.dc1-vlan1099.ask4.net0
81.23.51.22br2.dc1-core1.dc1-vlan12000
81.23.51.23core1.dc1-br2.dc1-vlan12000
81.23.51.24br1.dc1-core1.dc1-vlan12010
81.23.51.25core1.dc1-br2.dc1-vlan12010
81.23.51.26br2.hex-core2.hex-vlan12020
81.23.51.27core2.hex-br2.hex-vlan12020
81.23.51.28subnet-51-28.ask4internet.com0
81.23.51.29ip-81-23-51-29.ask4internet.com0
81.23.51.30ip-81-23-51-30.ask4internet.com0
81.23.51.31bcast-51-28.ask4internet.com0
81.23.51.32subnet-51-32.ask4internet.com0
81.23.51.33gw-vlan4.tor-11-2.pod1.dc1.ask4.net0
81.23.51.34ip-81-23-51-34.ask4internet.com0
81.23.51.35ip-81-23-51-35.ask4internet.com0
81.23.51.36ip-81-23-51-36.ask4internet.com0
81.23.51.37ip-81-23-51-37.ask4internet.com0
81.23.51.38ip-81-23-51-38.ask4internet.com0
81.23.51.39ip-81-23-51-39.ask4internet.com0
81.23.51.40ip-81-23-51-40.ask4internet.com0
81.23.51.41nagios-devel.ask4.net0
81.23.51.424voice-qa.ask4.net0
81.23.51.43ip-81-23-51-43.ask4internet.com0
81.23.51.44ip-81-23-51-44.ask4internet.com0
81.23.51.45ip-81-23-51-45.ask4internet.com0
81.23.51.46nagios-proxy.ask4.net0
81.23.51.47ip-81-23-51-47.ask4internet.com0
81.23.51.48ip-81-23-51-48.ask4internet.com0
81.23.51.49ip-81-23-51-49.ask4internet.com0
81.23.51.50ip-81-23-51-50.ask4internet.com0
81.23.51.51ip-81-23-51-51.ask4internet.com0
81.23.51.52ip-81-23-51-52.ask4internet.com0
81.23.51.53ip-81-23-51-53.ask4internet.com0
81.23.51.54ip-81-23-51-54.ask4internet.com0
81.23.51.55ip-81-23-51-55.ask4internet.com0
81.23.51.56ip-81-23-51-56.ask4internet.com0
81.23.51.57ip-81-23-51-57.ask4internet.com0
81.23.51.58ip-81-23-51-58.ask4internet.com0
81.23.51.59ip-81-23-51-59.ask4internet.com0
81.23.51.60ip-81-23-51-60.ask4internet.com0
81.23.51.61ip-81-23-51-61.ask4internet.com0
81.23.51.62ip-81-23-51-62.ask4internet.com0
81.23.51.63bcast-51-32.ask4internet.com0
81.23.51.64office-subnet.ask4.com0
81.23.51.65pc-65.office.ask4.com0
81.23.51.66pc-66.office.ask4.com0
81.23.51.67pc-67.office.ask4.com0
81.23.51.68pc-68.office.ask4.com0
81.23.51.69pc-69.office.ask4.com0
81.23.51.70pc-70.office.ask4.com0
81.23.51.71pc-71.office.ask4.com0
81.23.51.72pc-72.office.ask4.com0
81.23.51.73pc-73.office.ask4.com0
81.23.51.74pc-74.office.ask4.com0
81.23.51.75pc-75.office.ask4.com0
81.23.51.76pc-76.office.ask4.com0
81.23.51.77pc-77.office.ask4.com0
81.23.51.78pc-78.office.ask4.com0
81.23.51.79pc-79.office.ask4.com0
81.23.51.80pc-80.office.ask4.com0
81.23.51.81pc-81.office.ask4.com0
81.23.51.82pc-82.office.ask4.com0
81.23.51.83pc-83.office.ask4.com0
81.23.51.84pc-84.office.ask4.com0
81.23.51.85pc-85.office.ask4.com0
81.23.51.86pc-86.office.ask4.com0
81.23.51.87pc-87.office.ask4.com0
81.23.51.88pc-88.office.ask4.com0
81.23.51.89pc-89.office.ask4.com0
81.23.51.90pc-90.office.ask4.com0
81.23.51.91pc-91.office.ask4.com0
81.23.51.92pc-92.office.ask4.com0
81.23.51.93pc-93.office.ask4.com0
81.23.51.94pc-94.office.ask4.com0
81.23.51.95pc-95.office.ask4.com0
81.23.51.96pc-96.office.ask4.com0
81.23.51.97pc-97.office.ask4.com0
81.23.51.98pc-98.office.ask4.com0
81.23.51.99pc-99.office.ask4.com0
81.23.51.100pc-100.office.ask4.com0
81.23.51.101pc-101.office.ask4.com0
81.23.51.102pc-102.office.ask4.com0
81.23.51.103pc-103.office.ask4.com0
81.23.51.104pc-104.office.ask4.com0
81.23.51.105pc-105.office.ask4.com0
81.23.51.106pc-106.office.ask4.com0
81.23.51.107pc-107.office.ask4.com0
81.23.51.108pc-108.office.ask4.com0
81.23.51.109pc-109.office.ask4.com0
81.23.51.110pc-110.office.ask4.com0
81.23.51.111pc-111.office.ask4.com0
81.23.51.112pc-112.office.ask4.com0
81.23.51.113pc-113.office.ask4.com0
81.23.51.114pc-114.office.ask4.com0
81.23.51.115pc-115.office.ask4.com0
81.23.51.116pc-116.office.ask4.com0
81.23.51.117pc-117.office.ask4.com0
81.23.51.118pc-118.office.ask4.com0
81.23.51.119pc-119.office.ask4.com0
81.23.51.120pc-120.office.ask4.com0
81.23.51.121pc-121.office.ask4.com0
81.23.51.122pc-122.office.ask4.com0
81.23.51.123pc-123.office.ask4.com0
81.23.51.124pc-124.office.ask4.com0
81.23.51.125pc-125.office.ask4.com0
81.23.51.126pc-126.office.ask4.com0
81.23.51.127bcast-51-64.ask4internet.com0
81.23.51.128subnet-51-128.ask4internet.com0
81.23.51.129gw-vlan4.tor-11-2.pod1.dc1.ask4.net0
81.23.51.130ip-81-23-51-130.ask4internet.com0
81.23.51.131ip-81-23-51-131.ask4internet.com0
81.23.51.132ip-81-23-51-132.ask4internet.com0
81.23.51.133ip-81-23-51-133.ask4internet.com0
81.23.51.134ip-81-23-51-134.ask4internet.com0
81.23.51.135ip-81-23-51-135.ask4internet.com0
81.23.51.136ip-81-23-51-136.ask4internet.com0
81.23.51.137ip-81-23-51-137.ask4internet.com0
81.23.51.138netconfig.ask4internet.com0
81.23.51.139ip-81-23-51-139.ask4internet.com0
81.23.51.140ip-81-23-51-140.ask4internet.com0
81.23.51.141ip-81-23-51-141.ask4internet.com0
81.23.51.142ip-81-23-51-142.ask4internet.com0
81.23.51.143myaccount.dev.ask4.com0
81.23.51.144vhpbx-devel.ask4internet.com0
81.23.51.145ip-81-23-51-145.ask4internet.com0
81.23.51.146as-stats.ask4.net0
81.23.51.147as-stats-clone.ask4.net0
81.23.51.148ip-81-23-51-148.ask4internet.com0
81.23.51.149ac-devel.ask4.com0
81.23.51.150deviceprovisioning.ask4.net0
81.23.51.151ip-81-23-51-151.ask4internet.com0
81.23.51.152ip-81-23-51-152.ask4internet.com0
81.23.51.153ip-81-23-51-153.ask4internet.com0
81.23.51.154ip-81-23-51-154.ask4internet.com0
81.23.51.155ip-81-23-51-155.ask4internet.com0
81.23.51.156ip-81-23-51-156.ask4internet.com0
81.23.51.157ip-81-23-51-157.ask4internet.com0
81.23.51.158ip-81-23-51-158.ask4internet.com0
81.23.51.159bcast-51-128.ask4internet.com0
81.23.51.160subnet-51-160.ask4internet.com0
81.23.51.161gw-vlan45.e4.hex.ask4.net0
81.23.51.162gw.tatton.hello.ask4.co.uk0
81.23.51.163ip-81-23-51-163.ask4internet.com0
81.23.51.164customers.tatton.hello.ask4.co.uk0
81.23.51.165ip-81-23-51-165.ask4internet.com0
81.23.51.166ip-81-23-51-166.ask4internet.com0
81.23.51.167bcast-51-160.ask4internet.com0
81.23.51.168subnet-51-168.ask4internet.com0
81.23.51.169gw-vlan45.e3.hex.ask4.net0
81.23.51.170gw.garthheads.dwell.ask4.co.uk0
81.23.51.171ip-81-23-51-171.ask4internet.com0
81.23.51.172customers.garthheads.dwell.ask4.co.uk0
81.23.51.173ip-81-23-51-173.ask4internet.com0
81.23.51.174ip-81-23-51-174.ask4internet.com0
81.23.51.175bcast-51-168.ask4internet.com0
81.23.51.176subnet-51-176.ask4internet.com0
81.23.51.177gw-vlan45.e1.tcw-r1.ask4.net0
81.23.51.178gw.frontage.hello.ask4.co.uk0
81.23.51.179ip-81-23-51-179.ask4internet.com0
81.23.51.180customers.frontage.hello.ask4.co.uk0
81.23.51.181ip-81-23-51-181.ask4internet.com0
81.23.51.182ip-81-23-51-182.ask4internet.com0
81.23.51.183bcast-51-176.ask4internet.com0
81.23.51.184subnet-51-184.ask4internet.com0
81.23.51.185gw-vlan45.e1.tcw-r1.ask4.net0
81.23.51.186gw.alwyncourt.hello.ask4.co.uk0
81.23.51.187ip-81-23-51-187.ask4internet.com0
81.23.51.188customers.alwyncourt.hello.ask4.co.uk0
81.23.51.189ip-81-23-51-189.ask4internet.com0
81.23.51.190ip-81-23-51-190.ask4internet.com0
81.23.51.191bcast-51-184.ask4internet.com0
81.23.51.192core2-w1-edge3-w1.ask4.net0
81.23.51.193edge3-w1-core2-w1.ask4.net0
81.23.51.194core2-w1-edge4-w1.ask4.net0
81.23.51.195edge4-w1-core2-w1.ask4.net0
81.23.51.196core1-br1.dc1.ask4.net0
81.23.51.197br1-core1.dc1.ask4.net0
81.23.51.198br1.dc1.ask4.net0
81.23.51.199core2.dc1.ask4.net0
81.23.51.200ip-81-23-51-200.ask4internet.com0
81.23.51.201ip-81-23-51-201.ask4internet.com0
81.23.51.202ip-81-23-51-202.ask4internet.com0
81.23.51.203ip-81-23-51-203.ask4internet.com0
81.23.51.204eth-trunk1-core1.manc2.uk.ask40
81.23.51.205vlanif149-edge1.ma4.ask4.net0
81.23.51.206core2-core1.hex.ask4.net0
81.23.51.207core1-core2.hex.ask4.net0
81.23.51.208subnet-51-208.ask4internet.com0
81.23.51.209tor-10-core2-dc1.ask4.net0
81.23.51.210core2-tor-10-pod1-dc1.ask4.net0
81.23.51.211bcast-51-208.ask4internet.com0
81.23.51.212ip-81-23-51-212.ask4internet.com0
81.23.51.213ip-81-23-51-213.ask4internet.com0
81.23.51.214ip-81-23-51-214.ask4internet.com0
81.23.51.215ip-81-23-51-215.ask4internet.com0
81.23.51.216core1-e1.thn.ask4.net0
81.23.51.217e1-core1.thn.ask4.net0
81.23.51.218core2-e1.thn.ask4.net0
81.23.51.219e1-core2.thn.ask4.net0
81.23.51.220core-edge1-w1.ask4.net0
81.23.51.221edge-core1-w1.ask4.net0
81.23.51.222—0
81.23.51.223—0
81.23.51.224—0
81.23.51.225—0
81.23.51.226—0
81.23.51.227—0
81.23.51.228e1-tcw-r1-core1-nc-uol.ask4.net0
81.23.51.229core1-nc-uol-edge1-tcw-r1.ask4.net0
81.23.51.230core2-tor4.pod1.dc10
81.23.51.231tor4-core2.pod1.dc10
81.23.51.232subnet-51-232.ask4internet.com0
81.23.51.233core1-dc1-tor-13-2.ask4.net0
81.23.51.234tor-13-2-core1-dc1.ask4.net0
81.23.51.235bcast-51-232.ask4internet.com0
81.23.51.236subnet-51-236.ask4internet.com0
81.23.51.237core2-dc1-tor-7-pod1-dc1.ask4.net0
81.23.51.238tor-7-pod1-core2-dc1.ask4.net0
81.23.51.239bcast-51-236.ask4internet.com0
81.23.51.240core1-dc1-core1-w1.ask4.net0
81.23.51.241core1-w1-core1-dc1.ask4.net0
81.23.51.242core2-dc1-core2-w1.ask4.net0
81.23.51.243core2-w1-core2-dc1.ask4.net0
81.23.51.244core1-w1-core2-w1.ask4.net0
81.23.51.245core2-w1-core1-w1.ask4.net0
81.23.51.246core2-w1-edge2-w1.ask4.net0
81.23.51.247edge2-w1-core2-w1.ask4.net0
81.23.51.248core1-e1.hex.ask4.net0
81.23.51.249e1-core1.hex.ask4.net0
81.23.51.250core2-e1.hex.ask4.net0
81.23.51.251e1-core2.hex.ask4.net0
81.23.51.252core1-e2.hex.ask4.net0
81.23.51.253e2-core1.hex.ask4.net0
81.23.51.254—0
81.23.51.255—0

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
$
traceroute -a -n -q1 81.23.51.233
traceroute to 81.23.51.233 (81.23.51.233): 64 hops max, 52 byte packets
1 [AS34660] 178.23.161.1 1.597 ms
2 *
3 [AS41230] 81.23.51.233 0.411 ms
Measurement taken from  IPinfo ProbeNet in Sheffield, GB
On