DNS Coffee ☕
Zone

ntt active

First Seen Feb 04, 2015 · First Import Feb 26, 2015 · Last Import Sep 21, 2026 · Type generic · Operator NIPPON TELEGRAPH AND TELEPHONE CORPORATION · DNSSEC Signed since Sep 27, 2019

Also indexed as: Domain Nameserver

14
Domains
4,222
Zone Imports
4
Current Nameservers
0
Past Nameservers
Zone Growth
Nameserver Timeline
Current Nameservers 4
Name First Seen Domains
tld5.nic.ntt Dec 30, 2015 1
tld1.nic.ntt Feb 04, 2015 1
tld2.nic.ntt Feb 04, 2015 1
tld3.nic.ntt Feb 04, 2015 1
Past Nameservers 0
Name First Seen Last Seen Domains
Sample Current Domains 0
No domains have been added to this zone recently.
The most recently added of the 14 domains in this zone, up to 50 — full lists via the API.
Sample Past Domains 3
Domain Last Seen
action.ntt Apr 01, 2026
door.ntt Apr 01, 2026
volunteer.ntt Sep 17, 2026
The most recently removed domains that were in this zone and no longer are, up to 50 — full lists via the API.
SOA 2,444 serials
Primary NStld1.nic.ntt
Mailboxroot.nic.ntt.
Serial1789952401
Refresh1 hour
Retry15 minutes
Expire21 days
Minimum TTL15 minutes
Show 10 recent serial changes
SerialFirst SeenLast Seen
1789866001 Sep 20, 2026 Sep 20, 2026
1789779601 Sep 19, 2026 Sep 19, 2026
1789693201 Sep 18, 2026 Sep 18, 2026
1789606801 Sep 17, 2026 Sep 17, 2026
1789538401 Sep 16, 2026 Sep 16, 2026
1789434001 Sep 15, 2026 Sep 15, 2026
1789347601 Sep 14, 2026 Sep 14, 2026
1789261200 Sep 13, 2026 Sep 13, 2026
1789174800 Sep 12, 2026 Sep 12, 2026
1789088400 Sep 11, 2026 Sep 11, 2026
DNSSEC signed

Signed since Sep 27, 2019.

Signed domains: 4 · DS records: 4 (as of Sep 21, 2026)

RoleAlgorithmPublic KeyFirst Seen
KSK RSA/SHA-256
showAwEAAcqm9E79EEtfgEKQEyZpC7qdmYgD7pgXKW5+R8llpzAFealS9GjxGMBoTtQca7Rf93ZJGuCSqJTskJWbR14oh9p/6AvnIRnlau67Q86SG0nZHwlbPWR9oisO6dZbHevIeKJMRhpVGkmRu7PxPA8ALqF/Enbv7l+i8nZENUw/LEWHWtmUQDjUgiY0n1Gpjj5qxJLJ3LcwsYSgAfdlVAaY6EWD06xc2r6wEtJhzlXqNDp+/cyJpjAAet/LZ/9l3REcJGgkoTGooOQ5f/nYybefhNWa4dbFWqWf875tingFlQez+Qk89igDQGCE9IIAD/a/wWkYj7vYQ0rV/xUIg5XtK5c=
 Nov 26, 2025
ZSK RSA/SHA-256
showAwEAAaRGLOupw40BQu2VdXFsRDh4eJqHM8siHalDyrwvHxzOo8kIwLkCmu7tHJu65YkP/3gK7RnHNWsSmySZkwtt2h3Ub88SZS0puMRD7pC2AvsptRN/Nh8nXL1mk5/8Bm7g+Mkcf89He3KoMjdbunfK+tgujywue6zozRyxeDVXY03Z
 Aug 28, 2026
ZSK RSA/SHA-256
showAwEAAeQiWGlEWiPIhIT9iSObCA8jCaE1/yDfN18ix4XSNnacjvvbejyWIT8MdvMLdiX1CQ5WqzMg9Pod1pOkQpWJ8/MvvaBA1iqyr8zczJBkoQGdqX8He1BHo0d4TO1qsCfP+vGvLZj5y1wIqho59N1ZYZ4/SXoz7lvd5VjV12mPAQjj
 Jul 29, 2026
SignsKey TagSignerExpires
DNSKEY 25342 ntt Oct 27, 2026
SOA 16479 ntt Oct 20, 2026
84 retired DNSKEYs no longer published.