DNSWHOIS.INFO - arpa
Search for IP or hostnames:
arpa checked at 2025-11-20T20:55:33.875Z 669ms 132/132/132 100% R:8 allDone:true timedOut:false arpa
(root)
Up
in-addr.arpa |
in-addr-servers.arpa |
uri.arpa |
urn.arpa |
e164.arpa |
as112.arpa |
ip6-servers.arpa |
iris.arpa |
ip6.arpa |
Starts with same word
Starts similarily
AI analysis
arpa is the parent of in-addr.arpa, in-addr-servers.arpa, uri.arpa, urn.arpa, e164.arpa and several other host names.
arpa is delegated to twelve name servers: a.ns.arpa, b.ns.arpa, c.ns.arpa, d.ns.arpa, e.ns.arpa, f.ns.arpa, g.ns.arpa, h.ns.arpa, i.ns.arpa, k.ns.arpa, l.ns.arpa and m.ns.arpa.
Host names with two IP numbers:
a.ns.arpa → 2001:503:ba3e::2:30, 198.41.0.4
c.ns.arpa → 2001:500:2::c, 192.33.4.12
d.ns.arpa → 2001:500:2d::d, 199.7.91.13
e.ns.arpa → 2001:500:a8::e, 192.203.230.10
f.ns.arpa → 2001:500:2f::f, 192.5.5.241
g.ns.arpa → 2001:500:12::d0d, 192.112.36.4
h.ns.arpa → 2001:500:1::53, 198.97.190.53
i.ns.arpa → 2001:7fe::53, 192.36.148.17
k.ns.arpa → 2001:7fd::1, 193.0.14.129
l.ns.arpa → 2001:500:9f::42, 199.7.83.42
m.ns.arpa → 2001:dc3::35, 202.12.27.33
Pattern: for each base, the two IPs are base+3 and base+6.