Company Information

About Us

Company Name
BB Backbone Corp.
February 19th 2002
Capital Reserve
2.31 billion yen
SoftBank Corp. (100%)
  • President and CEO Hidetoshi Tosaka
  • Board Director, Executive Vice President and CISO Naoki Yamamoto
  • Board Director, Executive Vice President and CCO Jiro Hariguchi
  • Board Director, Executive Vice President Yoshioki Chika
  • Board Director Hideyuki Tsukuda
  • Board Director Keiichi Makizono
  • Board Director Takashi Tsutsui
  • Board Director Tomohiro Sekiwa
  • Audit & Supervisory Yoshiki Moriyama
Primary Fields of Business
  1. Registered telecommunications provider under the Telecommunications Business Act (Registration No: 300)
  2. Planning of computer communications systems using applied optical cable connection equipment, construction of facilities, and contracted business
  3. Investigation and planning of network architecture technologies utilizing the Internet
  4. Consulting related to network architecture utilizing the Internet
  5. Development, design, sales, leasing, rental, and management of communication devices
  6. Other business relevant to the foregoing
Business Area
Nationwide in Japan
Primary Clients
Telecommunications providers, electric power operators, rail operators, municipalities, other
Headquarters Address
1-7-1 Kaigan, Minato-ku, Tokyo 105-7509


February 1st 2002
Established as a planning company involved in optical fiber procurement
May 1st 2002
Obtained type 1 telecommunications provider license
Spring 1st 2003
Start of provision of backbone lines for SoftBank BB (Hokkaido-Tokyo-Osaka-Fukuoka-Nagasaki, etc.)
January 1st 2005
Start of provision of interconnection lines for Tokyo data centers (Otemachi-between Tokyo data centers)
Spring 1st 2013
Construction of proprietary, large-scale network in Shikoku area and start of provision of lines for mobile
Spring 1st 2013
Start of provision of wireless access lines for 5 GHz band in Aomori Prefecture
May 1st 2018
Field trial bureau license acquired for sXGP commercialization
September 1st 2019
Start of provision of “BBB Spectrum” wavelength rental service between the Otemachi and Ariake areas
February 1st 2020
Start of sales of private LTE (sXGP) systems with NEC and provision of related services
January 1st 2021
Start of provision of “on-call nurse partnership services” using PBX and LTE lines for senior citizens in assisted living


Business Address
TOKYO PORTCITY TAKESHIBA Office Tower, 1-7-1 Kaigan, Minato-ku, Tokyo 105-7509
"Hamamatsucho Station" on the JR line and Tokyo Monorail (4-minute walk)

"Takeshiba Station" on the Yurikamome Line (2-minute walk)

"Daimon Station" on the Toei Asakusa Line and Oedo Line (5-minute walk)

Page top