Microsoft ends support for Internet Explorer on June 16, 2022.
We recommend using one of the browsers listed below.
- Microsoft Edge（Latest version）
- Mozilla Firefox（Latest version）
- Google Chrome（Latest version）
- Apple Safari（Latest version）
Please contact your browser provider for download and installation instructions.
Contact us
View contact information for NTT
Inquiries to NTT Group companies
Inquiries to NTT
(NIPPON TELEGRAPH AND TELEPHONE CORPORATION)
-
Contact us by email
Please be as specific as possible when writing your inquiry. We regret that in some cases we may not be able to reply to questions, depending upon their content.
The registration system utilizes the "Spiral" system provided by Piped Bits
. All information you sent is encrypted with secure connections (SSL). -
Feedback
Please click here to send us your opinions about this Web site and tell us what changes or additions you would like to see.
You are not asked for your name when sending feedback, so if you want us to reply, please contact us.
The registration system utilizes the "Spiral" system provided by Piped Bits
. All information you sent is encrypted with secure connections (SSL).
For inquiries about NTT's research and development, please contact us from here.
For inquiries about Sustainability at NTT, please contact us from here.
For inquiries about NTT's procurement and introduction of products, please contact us from here.
-
Inquiries about procurement
For inquiries about NTT's procurement and introduction of products, please contact us from here.
-
Product Introduction Form
NTT welcomes product introductions from suppliers. Please submit a product introduction form with the required fields filled in
For inquiries about Intellectual Property Center, please contact us from here.
For inquiries about NTT Technology Licensing Site, please contact us from here.
For inquiries other than the above, please contact us from here.
Please contact NTT Group companies regarding to inquiries about businesses and services.
Inquiries to NTT Group companies
Notes
- ■ Any personal information that you provide will be used to reply to your inquiry and offer information.
- ■ In principle, we will reply to your inquiry via the email address that you have provided to us. However, replies may not be sent or received if addresses are mistyped, if there is a disruption in the network, or for other reasons.
- - In the case an incorrect email address was typed when registration was made or an order was placed
There are many cases where email addresses are typed using double-byte characters, or where addresses are entered with the wrong domain name. - - In the case of security and anti-virus software
Some settings may cause replies from us to be determined as spam.
- ■ It may take a few days or more until a reply is made or a reply cannot be made depending on the inquiry. In addition, we cannot accept requests that we make replies at specific times.
Evaluation by Society
-
-
NTT is the first telecommunications operator to become a member of global initiatives to make smarter use of energy, “EP100” and “EV100” (Oct. 2018)
-
-
-
Established a council to promote secure digital economy together with multi-national companies
-
-
-
-
