• TLD Info
  • Sample A Records

.arpa TLD Report

Description: Reserved exclusively to support operationally-critical infrastructural identifier spaces as advised by the Internet Architecture Board
Delegated to: Internet Architecture Board (IAB)
Nameserver Status
E
IPv4 Enabled Nameservers
O
A Glue in the Root Zone
O
IPv6 Enabled Nameservers
O
AAAA Glue in the Root Zone
O
Domains:
13
A records:
1
A glue:
24
AAAA records:
0
AAAA glue:
24
Updated:
13 Sep 2026 05:00 PST
A Record Breakdown
RangePrefixCount
unicast 1
invalid 1

Nameservers for .arpa TLD and SOA Query Test
NameserverPassAPassAAAA
a.ns.arpa O 198.41.0.4 O 2001:503:ba3e::2:30
b.ns.arpa O 170.247.170.2 O 2801:1b8:10::b
c.ns.arpa O 192.33.4.12 X 2001:500:2::c
d.ns.arpa O 199.7.91.13 X 2001:500:2d::d
e.ns.arpa O 192.203.230.10 X 2001:500:a8::e
f.ns.arpa O 192.5.5.241 O 2001:500:2f::f
g.ns.arpa O 192.112.36.4 O 2001:500:12::d0d
h.ns.arpa O 198.97.190.53 O 2001:500:1::53
i.ns.arpa O 192.36.148.17 O 2001:7fe::53
k.ns.arpa X 193.0.14.129 O 2001:7fd::1
l.ns.arpa O 199.7.83.42 O 2001:500:9f::42
m.ns.arpa O 202.12.27.33 O 2001:dc3::35
E
Unallocated
HostIP
ipv4only.arpa 192.0.0.171