81.17.246.0/24

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Summary

IP address summary information
ASN	AS39122 — Blacknight Internet Solutions Limited
BGP Prefix	81.17.240.0/20
Pingable IPs	67
Routers	3


81.17.246.0	oldblacknight.sysadmin.ie
81.17.246.1	geons1.blacknight.ie	Ping
81.17.246.2	oldlists.sysadmin.ie	Ping
81.17.246.3	oldns1.sysadmin.ie
81.17.246.4	ns2.sysadmin.ie
81.17.246.5	oldnagios.sysadmin.ie
81.17.246.6	oldoldlists.ie.sage.org
81.17.246.7	unused2.sysadmin.ie
81.17.246.8	246-8.colo.sta.blacknight.ie
81.17.246.9	246-9.colo.sta.blacknight.ie
81.17.246.10	246-10.colo.sta.blacknight.ie
81.17.246.11	246-11.colo.sta.blacknight.ie
81.17.246.12	246-12.colo.sta.blacknight.ie
81.17.246.13	246-13.colo.sta.blacknight.ie
81.17.246.14	246-14.colo.sta.blacknight.ie

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.

$ traceroute -a -n -q1 81.17.246.73

traceroute to 81.17.246.73 (81.17.246.73): 64 hops max, 52 byte packets

1 [AS39122] 46.22.135.2 0.922 ms

2 [AS39122] 81.17.246.73 0.201 ms

Measurement taken from

IPinfo ProbeNet in Dublin, IE

On October 9, 2026

Traceroute

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