.ntt Brand TLD
The .ntt top-level domain is a brand-specific domain operated by Nippon Telegraph and Telephone Corporation (NTT), Japan's largest telecommunications provider. It was created as part of ICANN's new gTLD program to strengthen NTT's global brand identity, secure its digital ecosystem, and support its enterprise services across broadband, cloud computing, and ICT solutions.
Restricted to NTT and its authorized subsidiaries and affiliates
.ntt Domain Overview
The .ntt extension is a brand top-level domain in the Domain Name System (DNS). It is managed by Nippon Telegraph and Telephone Corporation (NTT). .ntt was introduced in 2015. There are currently 19 domains registered under this extension. DNSSEC adoption stands at 21.1%.
Registration Info
Registration pricing for .ntt is not publicly listed. Brand TLDs are typically restricted to the owning organization.
Security Features
- DNSSEC
- CAA Record Support
What Is the History of .ntt?
The .ntt domain was applied for by Nippon Telegraph and Telephone Corporation under ICANN's new gTLD program. It was delegated to the DNS root zone on February 3, 2015, after a successful application. NTT intended to use the domain to protect its brand, enhance digital security, and unify its global digital presence across network infrastructure and ICT services. The registry operation is outsourced to a third party, with Japan Registry Services (JPRS) handling technical operations.
Did you know?
Brand TLDs like .ntt are part of ICANN's New gTLD Program launched in 2012, which expanded the domain namespace beyond traditional TLDs.
What Is .ntt Used For?
The .ntt TLD is commonly used for the following purposes:
Brand protection
Corporate web properties
Internal enterprise portals
Global ICT service branding
Secure communication platforms
How Many .ntt Domains Are Registered?
Total Registrations
19
DNSSEC Adoption
21.1%
How Does .ntt Compare?
| Metric | Value |
|---|---|
| Extension | .ntt |
| Type | Brand TLD |
| Total Registrations | 19 |
| DNSSEC Adoption | 21.1% |
| Registration Price | Contact registrar |
| Renewal Price | Contact registrar |
| Registry Operator | Nippon Telegraph and Telephone Corporation (NTT) |
| Introduced | 2015-02-03 |
| Restrictions | Restricted to NTT and its authorized subsidiaries and affiliates |
How Available Are .ntt Domain Names?
Registration density analysis for .ntt domains by character length. Currently 14 domains are registered across all lengths.
Total Registered
14
Peak Saturation
0.15%
2-char names
DNSSEC Adoption
28.6%
Top Provider
Microsoft Azure DNS
| Length | Registered | % Full | Density |
|---|---|---|---|
| 2 chars | 1 | 0.15% | |
| 3 chars | 1 | 0.01% | |
| 4 chars | 1 | <0.01% | |
| 5 chars | 2 | <0.01% | |
| 6 chars | 2 | <0.01% | |
| 7 chars | 1 | <0.01% | |
| 8 chars | 1 | <0.01% | |
| 9 chars | 2 | <0.01% | |
| 10 chars | 3 | <0.01% |
Top DNS Providers
Updated daily from zone file analysis. Alpha density = registered / 26^length.
Compare across all TLDs →How Do I Register a .ntt Domain?
Eligibility
Not available for public use; restricted to NTT Corporation and its authorized subsidiaries and affiliated entities
Restricted TLD
This is a brand TLD exclusively controlled by Nippon Telegraph and Telephone Corporation (NTT). It is not available for public registration.
Registration Process
- Choose an accredited domain registrar that offers .ntt domains
- Check domain availability using the registrar's search tool
- Complete the registration process and provide required information
- Pay the registration fee (typically )
- Manage your domain settings through your registrar's control panel
Frequently Asked Questions
How Is This .ntt Data Compiled?
DNS Checker maintains a comprehensive TLD directory covering all 1,900+ active top-level domains. The data on this page combines multiple authoritative sources to provide information not found in standard TLD listings.
Zone File Analysis
Domain registration counts and density analysis are computed daily from TLD zone files, providing accurate registration statistics rather than estimates.
DNSSEC Adoption Tracking
DNSSEC deployment percentages are measured by scanning actual DNS records across all registered domains in each TLD zone.
Registrar Price Monitoring
Registration, renewal, and transfer prices are checked hourly across multiple accredited registrars and compared automatically.
Provider Market Share
DNS provider distribution is calculated from nameserver records, showing which hosting providers serve the most domains in each TLD.
Use DNS Checker tools to inspect any .ntt domain: run a full DNS health check, check DNS propagation, look up WHOIS records, or verify email authentication.
Disclaimer: The information on this page is sourced from IANA, ICANN, and respective registry operator publications, then structured and formatted with the assistance of AI. While accuracy is a priority, details such as pricing, registration requirements, and policies may change. Always verify with the official registry or an accredited registrar before making registration decisions.