DNS Coffee ☕
Zone

office active

First Seen Jun 24, 2015 · First Import Jun 30, 2015 · Last Import Sep 20, 2026 · Type generic · Operator Microsoft Corporation · DNSSEC Signed since Apr 10, 2020

Also indexed as: Domain Nameserver

6
Domains
4,098
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
dnsa.nic.office Feb 08, 2026 2
dns4.nic.office Feb 08, 2026 2
dns3.nic.office Feb 08, 2026 2
dnsd.nic.office Feb 08, 2026 2
dnsb.nic.office Feb 08, 2026 2
dnsc.nic.office Feb 08, 2026 2
dns2.nic.office Feb 08, 2026 2
Past Nameservers 17
Name First Seen Last Seen Domains
dnsc.nic.microsoft Sep 18, 2024 Feb 07, 2026 2
dnsd.nic.microsoft Sep 18, 2024 Feb 07, 2026 2
dns3.nic.microsoft Sep 18, 2024 Feb 07, 2026 2
dnsa.nic.microsoft Sep 18, 2024 Feb 07, 2026 2
dns1.nic.microsoft Sep 18, 2024 Feb 07, 2026 2
dns4.nic.microsoft Sep 18, 2024 Feb 07, 2026 2
dnsb.nic.microsoft Sep 18, 2024 Feb 07, 2026 2
dns2.nic.microsoft Sep 18, 2024 Feb 07, 2026 2
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
c.nic.office Nov 06, 2021 Sep 17, 2024 0
b.nic.office Nov 06, 2021 Sep 17, 2024 0
a.nic.office Nov 06, 2021 Sep 17, 2024 0
ns4.dns.nic.office Jun 24, 2015 Nov 05, 2021 0
ns6.dns.nic.office Jun 24, 2015 Nov 05, 2021 0
ns5.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 1,478 serials
Primary NSdns1.nic.office
Mailboxhostmaster.nominet.org.uk.
Serial1789866907
Refresh15 minutes
Retry5 minutes
Expire28 days
Minimum TTL1 hour
Show 10 recent serial changes
SerialFirst SeenLast Seen
1789780503 Sep 19, 2026 Sep 19, 2026
1789694103 Sep 18, 2026 Sep 18, 2026
1789607704 Sep 17, 2026 Sep 17, 2026
1789538715 Sep 16, 2026 Sep 16, 2026
1789434602 Sep 15, 2026 Sep 15, 2026
1789348519 Sep 14, 2026 Sep 14, 2026
1789261809 Sep 13, 2026 Sep 13, 2026
1789175413 Sep 12, 2026 Sep 12, 2026
1789089015 Sep 11, 2026 Sep 11, 2026
1789003208 Sep 10, 2026 Sep 10, 2026
Records Browse all

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

TYPE65534 2 TXT 1
DNSSEC signed

Signed since Apr 10, 2020.

Signed domains: 1 · DS records: 1 (as of Sep 20, 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 Oct 25, 2026
DNSKEY 16229 office Oct 20, 2026
12 retired DNSKEYs no longer published.