DNS Coffee ☕
Zone

office active

First Seen Jun 24, 2015 · First Import Jun 30, 2015 · Last Import Jul 30, 2026 · Type generic · Operator Microsoft Corporation · DNSSEC Signed since Apr 10, 2020

Also indexed as: Domain Nameserver

6
Domains
4,046
Zone Imports
8
Current Nameservers
17
Past Nameservers
Zone Growth
Nameserver Timeline
Current Nameservers 8
Name First Seen Domains
dns1.nic.office Feb 08, 2026 2
dns2.nic.office Feb 08, 2026 2
dns3.nic.office Feb 08, 2026 2
dns4.nic.office Feb 08, 2026 2
dnsa.nic.office Feb 08, 2026 2
dnsb.nic.office Feb 08, 2026 2
dnsc.nic.office Feb 08, 2026 2
dnsd.nic.office Feb 08, 2026 2
Past Nameservers 17
Name First Seen Last Seen Domains
dns1.nic.microsoft Sep 18, 2024 Feb 07, 2026 2
dns2.nic.microsoft Sep 18, 2024 Feb 07, 2026 2
dns3.nic.microsoft Sep 18, 2024 Feb 07, 2026 2
dns4.nic.microsoft Sep 18, 2024 Feb 07, 2026 2
dnsa.nic.microsoft Sep 18, 2024 Feb 07, 2026 2
dnsb.nic.microsoft Sep 18, 2024 Feb 07, 2026 2
dnsc.nic.microsoft Sep 18, 2024 Feb 07, 2026 2
dnsd.nic.microsoft Sep 18, 2024 Feb 07, 2026 2
a.nic.office Nov 06, 2021 Sep 17, 2024 0
b.nic.office Nov 06, 2021 Sep 17, 2024 0
c.nic.office Nov 06, 2021 Sep 17, 2024 0
ns1.dns.nic.office Jun 24, 2015 Sep 17, 2024 0
ns2.dns.nic.office Jun 24, 2015 Sep 17, 2024 0
ns3.dns.nic.office Jun 24, 2015 Sep 17, 2024 0
ns6.dns.nic.office Jun 24, 2015 Nov 05, 2021 0
ns5.dns.nic.office Jun 24, 2015 Nov 05, 2021 0
ns4.dns.nic.office Jun 24, 2015 Nov 05, 2021 0
Sample Current Domains 0
No domains have been added to this zone recently.
The most recently added of the 6 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 1,432 serials
Primary NSdns1.nic.office
Mailboxhostmaster.nominet.org.uk.
Serial1784714084
Refresh15 minutes
Retry5 minutes
Expire28 days
Minimum TTL1 hour
Show 10 recent serial changes
SerialFirst SeenLast Seen
1784714079 Jul 23, 2026 Jul 28, 2026
1784218840 Jul 22, 2026 Jul 22, 2026
1784218834 Jul 17, 2026 Jul 21, 2026
1781802812 Jul 16, 2026 Jul 16, 2026
1781802810 Jul 10, 2026 Jul 15, 2026
1781802806 Jul 09, 2026 Jul 09, 2026
1781802804 Jul 03, 2026 Jul 08, 2026
1781802800 Jul 02, 2026 Jul 02, 2026
1781802798 Jun 26, 2026 Jul 01, 2026
1781802794 Jun 25, 2026 Jun 25, 2026
Records Browse all

Catch-all zone-file records indexed under this zone, by type.

TYPE65534 2
DNSSEC signed

Signed since Apr 10, 2020.

Signed domains: 1 · DS records: 1 (as of Jul 30, 2026)

RoleAlgorithmPublic KeyFirst Seen
KSK RSA/SHA-256
showAwEAAc7rslncZfIYD91nWFR8BqkWXUSOcGhsRUx97U6y6Tc6VRecC54bhSA7/VLZ3+dFPi6zFa3M9k/nP6nQmxy8cXKKockJ4pFEYgJHOk4EnBUzCwZMEbxbTgeBDgUV/yB8K53nw4wPp72Thk22+Il5l1/+CVKof/sHHq3jwCjEL3QMlALmkJ+vU9VpDGqJvgwYPCe1uNu4LjeXkcfS2GgCNLecgSmMlhXEB1lIBrkPxdFy/c4cpJFsBZHECRcybatZOqqJ5koKeukziQaqx7PeMUE4teI18Sp0B3erYu01nb8TLeEPyGjBT0fgpX0TKVHcITV7ABvpJ9EcR+A2jGVC+/M=
 Aug 26, 2024
ZSK RSA/SHA-256
showAwEAAeu9ei8W0u6ALEQlqUzDlRO1HPkX6ezpgLT+NtQ7oC1di/Zcbr0r/5InaZjkykEZS/DeiBqJzVE0QZOkz6MHqNhQBAYVtptV5Qgxvz1AFIbyh8a2DHteQqIsssclU9s6ohUYR2izlJAtfSy1tFFTEcMIjlwrfW82D+xJzzdUKcJEcZnZlGeqmCjQ1UoF3VgYaC/ZZ9Tx8+CEyRraHUH/GxqMuba5F0RA+xCBQcY3XWKQKa+gPFkG+2zCU7VFtBlgK6fuCp2ApcOTEtr/tgUmIxObPts5bkZGafUtaMFYJrUsrgAoV8jM9y2BX+B8pE9uLXp4xyvsS6kQ1NV2jWGi63s=
 Aug 26, 2024
SignsKey TagSignerExpires
SOA 5565 office Sep 01, 2026
DNSKEY 16229 office Sep 01, 2026
12 retired DNSKEYs no longer published.