DNS Coffee ☕
Zone

ntt active

First Seen Feb 04, 2015 · First Import Feb 26, 2015 · Last Import Oct 13, 2026 · Type generic · Operator NIPPON TELEGRAPH AND TELEPHONE CORPORATION · DNSSEC Signed since before Sep 05, 2019

Also indexed as: Domain Nameserver

14
Domains
4,244
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
volunteer.ntt Sep 17, 2026
door.ntt Apr 01, 2026
action.ntt Apr 01, 2026
The most recently removed domains that were in this zone and no longer are, up to 50 — full lists via the API.
SOA 2,466 serials
Primary NStld1.nic.ntt
Mailboxroot.nic.ntt.
Serial1791853201
Refresh1 hour
Retry15 minutes
Expire21 days
Minimum TTL15 minutes
Show 10 recent serial changes
SerialFirst SeenLast Seen
1791766801 Oct 12, 2026 Oct 12, 2026
1791680401 Oct 11, 2026 Oct 11, 2026
1791594001 Oct 10, 2026 Oct 10, 2026
1791507601 Oct 09, 2026 Oct 09, 2026
1791421201 Oct 08, 2026 Oct 08, 2026
1791334801 Oct 07, 2026 Oct 07, 2026
1791248400 Oct 06, 2026 Oct 06, 2026
1791162000 Oct 05, 2026 Oct 05, 2026
1791075600 Oct 04, 2026 Oct 04, 2026
1790989201 Oct 03, 2026 Oct 03, 2026
DNSSEC signed

Signed since before Sep 05, 2019.

Signed domains: 4 · DS records: 4 (as of Oct 13, 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
showAwEAAbO35UDtrSrIBBUybiVoVqIdG4RfN87mF00xJiq+sCN9URp7BxCde5uj9afD+4o3I94mMeylB4bQNIlLYtCEP/6wuCSfTtQAJwKU3D01D7cv3sgjGxtlrR8TZQLXbMbu0JHzeH00xcKBjTTPIHmMvg1+N9W7nuSEvHpTkoyd9r/X
 Sep 27, 2026
ZSK RSA/SHA-256
showAwEAAaRGLOupw40BQu2VdXFsRDh4eJqHM8siHalDyrwvHxzOo8kIwLkCmu7tHJu65YkP/3gK7RnHNWsSmySZkwtt2h3Ub88SZS0puMRD7pC2AvsptRN/Nh8nXL1mk5/8Bm7g+Mkcf89He3KoMjdbunfK+tgujywue6zozRyxeDVXY03Z
 Aug 28, 2026
SignsKey TagSignerExpires
DNSKEY 25342 ntt Nov 26, 2026
SOA 10233 ntt Nov 10, 2026
85 retired DNSKEYs no longer published.