KDDI Internet Gateway

High-capacity, high-quality global IP transit services.


High-capacity backbone

Wide-area, low-latency internet connection is achieved using KDDI's high-capacity global backbone. KDDI has built backbones in the US, UK, Japan, Hong Kong and Singapore, enabling a direct, high-capacity connection with these countries. The covered area will gradually be expanded.

High-capacity backbone

Enhanced network management system

KDDI's Network Operation Center monitors SLAs (Service Level Agreements), BGP (Border Gateway Protocol) sessions and traffic troubles 24 hours a day, 365 days a year. In addition, the Center carries out constant monitoring of network traffic and performs scheduled network upgrades to maintain high performance. In the event of a failure, staff at the Center move swiftly to verify the situation, contact clients by fax or email, and implement the necessary recovery steps. The center handles customer inquiries 24 hours a day.

IPv4/IPv6 support

Users can select IPv4, IPv6 or IPv4 + IPv6 on one circuit according to their usage status. KDDI provides the following routings to meet users' needs.

  • IPv4: BGP (Global AS) Full Transit / Static
  • IPv6: BGP (Global AS) Full Transit / Static

Service Configuration

1. Connection configuration

Configuration 1: In-house connection type = connection within the site where KDDI's Internet gateway is set up

Configuration 1 image

Configuration 2: Access circuit connection type = Connection outside site where KDDI's Internet gateway is set up

Configuration 2 image

2. KDDI internet gateway sites

  • US (Los Angeles, New York, San Jose)
  • UK (London)
  • Hong Kong
  • Singapore

3. Maintenance and support

Specialist KDDI staff monitor the network 24 hours a day, 365 days a year, ensuring a stable and pleasant network environment.
KDDI provides a 24-hour dedicated phone number for customer enquiries and notification of any problems.

4. Others

  • Provider Interfaces: 10GBase-LR / 1000Base-SX, LX
  • Routing: BGP (Global AS) / Static
  • Billing method: Flat rate / Metered rate

Service Level Agreement (SLA)

KDDI ensures service quality through the provision of SLAs which guarantee stringent standards for each of the following four items.

  • Availability
  • Latency
  • Customer Notification
  • Packet Loss

If the service quality fails to meet agreed standards, a portion of usage charges will be adjusted accordingly.
The SLA applies to all KDDI Internet Gateway users. No additional application or charge is required.
KDDI will continue to strengthen its SLA and further enhance service quality.

Important Notes

Name server (DNS server)

If you use a mail server, WWW server or other such server with your own domain name at your location, you will be required to provide a DNS.

IP address

The IP address for your network is allocated from KDDI's CIDR (classless inter-domain routing) block in accordance with JPNIC guidelines. The allocated IP address must be returned to KDDI upon cancellation of the service. KDDI provides one IP address per subscription to your router's WAN port (for connecting with KDDI).

Contact Us

If you have questions about prices and product details, please contact us at:


Operation Hours: 9:00~18:00
(except Saturday, Sunday, and national holidays)

Contact Us


Operation Hours: 9:00~18:00
(except Saturday, Sunday, and national holidays)

Inquiry Form