DNS Coffee ☕
Zone

arpa active

First Seen before tracking · First Import Oct 28, 2013 · Last Import Sep 21, 2026 · Type infrastructure · Operator Internet Architecture Board (IAB) · DNSSEC Signed since before Mar 28, 2021

Also indexed as: Domain

13
Domains
4,680
Zone Imports
12
Current Nameservers
12
Past Nameservers
Zone Growth
Nameserver Timeline
Current Nameservers 12
Name First Seen Domains
b.ns.arpa May 03, 2022 1
d.ns.arpa May 03, 2022 1
i.ns.arpa May 03, 2022 1
m.ns.arpa May 03, 2022 1
k.ns.arpa May 03, 2022 1
l.ns.arpa May 03, 2022 1
f.ns.arpa May 03, 2022 1
h.ns.arpa May 03, 2022 1
g.ns.arpa May 03, 2022 1
a.ns.arpa Apr 26, 2022 1
c.ns.arpa Apr 26, 2022 1
e.ns.arpa Apr 26, 2022 1
Past Nameservers 12
Name First Seen Last Seen Domains
h.root-servers.net Before Apr 11, 2011 May 02, 2022 4
g.root-servers.net Before Apr 11, 2011 May 02, 2022 4
f.root-servers.net Before Apr 11, 2011 May 02, 2022 3
b.root-servers.net Before Apr 11, 2011 May 02, 2022 14
k.root-servers.net Before Apr 11, 2011 May 02, 2022 4
l.root-servers.net Before Apr 11, 2011 May 02, 2022 3
m.root-servers.net Before Apr 11, 2011 May 02, 2022 3
i.root-servers.net Before Apr 11, 2011 May 02, 2022 3
d.root-servers.net Before Apr 11, 2011 May 02, 2022 3
a.root-servers.net Before Apr 11, 2011 Apr 25, 2022 28
c.root-servers.net Before Apr 11, 2011 Apr 25, 2022 3
e.root-servers.net Before Apr 11, 2011 Apr 25, 2022 3
Sample Current Domains 0
No domains have been added to this zone recently.
The most recently added of the 13 domains in this zone, up to 50 — full lists via the API.
Sample Past Domains 0
No domains have left this zone recently.
The most recently removed domains that were in this zone and no longer are, up to 50 — full lists via the API.
SOA 2,574 serials
Primary NSa.root-servers.net
Mailboxnstld.verisign-grs.com.
Serial2026092001
Refresh30 minutes
Retry15 minutes
Expire7 days
Minimum TTL1 day
Show 10 recent serial changes
SerialFirst SeenLast Seen
2026092000 Sep 20, 2026 Sep 20, 2026
2026091802 Sep 19, 2026 Sep 19, 2026
2026091800 Sep 18, 2026 Sep 18, 2026
2026091700 Sep 17, 2026 Sep 17, 2026
2026091501 Sep 16, 2026 Sep 16, 2026
2026091500 Sep 15, 2026 Sep 15, 2026
2026091301 Sep 14, 2026 Sep 14, 2026
2026091201 Sep 13, 2026 Sep 13, 2026
2026091200 Sep 12, 2026 Sep 12, 2026
2026091100 Sep 11, 2026 Sep 11, 2026
DNSSEC signed

Signed since before Mar 28, 2021.

Signed domains: 9 · DS records: 24 (as of Sep 21, 2026)

RoleAlgorithmPublic KeyFirst Seen
KSK RSA/SHA-256
showAwEAAaTeX8QjGPfu932a6OfQGYeeIdyXdLGLbvQD4LdNmEqJLL98kdOWB3bE97Wdh3FzI87OOqAVCITqWxqAM+phyZ6DsBzHpLDdqvFXkvv99n042rU1DROyIuHdZe/0qjR56PboiSEM6I7cPJWGJxlnR+JZVWXWJ3lK38teTaVrNm2Te/WPU2ntHY160etwVlxms4xbXa7WBbWXEq1q/9y18A56N/yz2dKkVLh9fmMU/frslsnn5BDYlkg4Xo0V+cw2Qw46mYV4g03ueCiDJAenUfV4iU9ud2h0Dq6Rhz7GMuTojDu3hdUz4DskR66yCetWRyofLCwVtZShGYqqLbiDTJc=
 before Mar 28, 2021
ZSK RSA/SHA-256
showAwEAAbRqK0RFehTnaRBP0NaiLBb6KODzMPDSBnPDnekrUmry0k5RwYFWIeYMHWX+ew2eqiC1HVmm7hgMbUwPfmIm0cMOiGJ+2e6uQlluUj5JGOEZRm64HPbCUNn+zNY2E7PsZ77N8DgwilnJA5BkwIzKTir+2rToAVDZP75PRSaBjvx2rC14ksbe7ViVx7er/5w8ynl40D0ciBv40Xdk8Yzvhnagq5YmBsjPxWwiSxGP2kb4dxFGny2YLMWRsoKDOu6HUVjBcAyThsBgtcMTAvl4Ea/coepnwdbxOi+HtpwE3zT2R7347ohaiQ3OX6kHi/D9dmCuHVa/v2k7t0ngjeDCiI0=
 Sep 20, 2026
ZSK RSA/SHA-256
showAwEAAc8gVL7WusCZPcJtb3HX9EQPUc48CUEStSXQzSkVFEMd+GdIdC/ArkU4d7nYNe+qFGl2vmk8IlwEXyCG+ousAQsGRNhqtmAcThD5Z5x/WCaoQPwe6DSBOANUIBKIyXf6uPngfkEUlNuACx1xenpIgLqdf0ra2P0iPzDcoxAZEe76u7Xu/s/LbqSA4zs+hN3BokWDKingwQ8XW5tKYEaykYgSI8lORFuVGPQEGRN2O1cw8A4anyfriAYx1ngqUw6OkYhi+i8OOh7MsW/rbofJ5nYo5Z2zIz5Imwx5PGcowtpTABI5Pd3avtFLGU8cPZBsd/ZmR9DWcVis4UWqgEtywJM=
 Jun 21, 2026
SignsKey TagSignerExpires
DNSKEY 42581 arpa Oct 10, 2026
SOA 39561 arpa Oct 03, 2026
28 retired DNSKEYs no longer published.